ams develops and manufactures high performance analog semiconductors that solve its customers’ most challenging problems with innovative solutions. ams is the new name of austriamicrosystems, following the 2011 acquisition of optical sensor company TAOS Inc. ams’ products are aimed at applications which require extreme precision, accuracy, dynamic range, sensitivity, and ultra-low power consumption. ams’ product range includes sensors, sensor interfaces, power management ICs and wireless ICs for customers in the consumer, industrial, medical, mobile communications and automotive markets.
AMS AS5161 Rotary Position Sensor is a contactless Hall-based magnetic position sensor for very accurate angular measurement over a full turn of 360°. A sub range can be programmed to achieve the best output characteristic for the application. A simple diametrical 2-pole magnet rotating on the center of the IC is required: the magnet may be placed above or below the IC. The AS5161 is a compact integrated solution which provides the absolute angle measurement with a resolution of 0.09° over a full revolution as PWM output signal. The internal 14-bit core of the AS5161 enables a fine programming of the start and stop positions with a resolution of 0.02° to allow the finest system mechanical adjustments. High level of flexibility is guaranteed by the programmability through the UART interface shared with the output pin, to reduce the number of pins in the application. The angular output data can be linearized in the final production to further increase the precision of the measurement. With embedded overvoltage protection and reverse battery protection the AS5161 can fulfill the most demanding automotive safety standard.
AMS AS3661 Smartlight LED driver delivers a 9-channel LED driver designed to produce lighting effects for mobile devices. A high efficiency charge pump enables LED driving over full LiIon battery voltage range. The device is equipped with an internal program memory, which allows operation without processor control. The AS3661 maintains excellent efficiency over a wide operating range by autonomously selecting the best charge pump gain based on LED forward voltage requirements. AS3661 is able to automatically enter power-save mode when LED outputs are not active, thus lowering idle current consumption down to 10 μA (typ). The AS3661 has an I²C-compatible control interface with four pin selectable addresses. Also, the device has a flexible General Purpose Output (GPO), which can be used as a digital control pin for other devices. INT pin can be used to notify processor when a lighting sequence has ended (interrupt - function). Also, the device has a trigger input interface, which allows synchronization between multiple devices.The device requires only four small and low-cost ceramic capacitors.
AMS AS342x Ambient Noise Cancellation Speaker Driver is ideal for headsets, headphones or ear pieces. It is intended to improve quality of e.g. music listening, a phone conversation etc. by reducing background ambient noise. The fully analog implementation allows the lowest power consumption, lowest system BOM cost and most natural received voice enhancement otherwise difficult to achieve with DSP implementations. The device is designed to be easily applied to existing architectures.
AMS TCS34725 Color Light to Digital Converter features an IR Filter, 0x29 Address, I2C Vbus = VDD Interface in a 6 Pin FN package. The TCS3472 family of devices provides a digital return of red, green, blue (RGB), and white light sensing values. An IR blocking filter, integrated on-chip and localized to the color sensing photodiodes, minimizes the IR spectral component of the incoming light and allows color measurements to be made accurately. The high sensitivity, wide dynamic range, and IR blocking filter make the TCS3472 an ideal color sensor solution for use under varying lighting conditions and through attenuating materials. The TCS3472 color sensor has a wide range of applications including RGB LED backlight control, solid-state lighting, health/fitness products, industrial process controls and medical diagnostic equipment. In addition, the IR blocking filter enables the TCS3472 to perform ambient light sensing (ALS). Ambient light sensing is widely used in display-based products such as cell phones, notebooks, and TVs to sense the lighting environment andenable automatic display brightness for optimal viewing and power savings. The TCS3472, itself, can enter a lower-power wait state between light sensing measurements to further reduce the average power consumption.
AMS TSL2772 device family provides both ambient light sensing (ALS) and, when coupled with an external IRLED, proximity detection. The device family is based on the TAOS patented dual-diode technology that enables accurate ALS results and approximates human eye response to light intensity under a variety of lighting conditions. The TSL2772 ALS includes a reduced-gain mode that extends the operating range to 60k lux in sunlight. The device package incorporates a UV-rejection filter that enables accurate ALS. The TSL2772 proximity detection includes improved signal-to-noise performance and selectable gain modes. A proximity offset register allows compensation for optical system crosstalk between the IR LED and the sensor. To prevent false proximity data measurement readings, a proximity saturation indicator bit signals that the internal analog circuitry has reached saturation.
AMS TSL4531 Digital Ambient Light Sensor approximates human eye response under a variety of lighting conditions. The TSL4531 series has three selectable integration times and provide a direct 16-bit lux output via an I2C bus interface. The wide dynamic range of the ALS makes it particularly useful in outdoor applications where it is exposed to direct sunlight. The device is ideal for use in automatic control of street lights and security, billboard, and automotive lighting. The TSL4531 devices can also be used in solid state and general lighting for automatic control and daylight harvesting to maximize energy conservation. Other applications include display backlight control to extend battery life and optimize visibility in cell phones, tablets, and notebooks.
AMS TSL2572 device family provides ambient light sensing (ALS) that approximates human eye response to light intensity under a variety of lighting conditions and through a variety of attenuation materials. Accurate ALS measurements are the result of TAOS’ patented dual-diode technology and the UV rejection filter incorporated in the package. In addition, the operating range is extended to 60,000 lux in sunlight when the low-gain modeis used. While useful for general purpose light sensing, the TSL2572 device is particularly useful for display management to provide optimum viewing in diverse lighting conditions while extending battery life. The TSL2572 device family is ideally suited for use in mobile handsets, TVs, tablets, monitors, and portable media players where the display backlight may account for 50% to 70% of the system power consumption.
ams SL900A RFID Transponder Sensory Tag Data Logger IC works in a semi-passive mode (battery-assisted passive) as well as in fully passive mode. The chip is ideal for applications using thin and flexible batteries (1.5V or 3V) for autonomous logging from the integrated temperature sensor or external sensors with time-stamp from on-chip real-time clock (RTC). The SPI/IO port allows connection of external circuits.
ams SL13A HF/NFC Sensor Tag & Data Logger IC is a passive/semi-passive tag chip optimized for single-cell, battery-powered smart labels with sensor functionality. The chip is ideal for applications using thin and flexible batteries (1.5V or 3V) but can also be powered from the RF field (electromagnetic waves from an RFID reader). The chip has a fully integrated temperature sensor with a maximum accuracy of 0.5°C. The analog sensor interface allows connection of an external sensor.
ams AS3953 NFC Interface IC (NFiC) delivers low cost, ultra low power NFC forum functionality to multiple different applications. The AS3953 is a analog front-end with integrated 14443A data framing and SPI interface. It is designed to create a fast data link between an ISO 14443A reader device (PCD) and a microcontroller. The AS3953 is passively powered meaning that it can be supplied from the PCD magnetic field, eliminating the need of a continual external supply. This makes the AS3953 perfect for wireless communication to a low-power battery powered device. The AS3953 is used with an appropriate antenna coil connected to the terminals LC1 and LC2, and behaves as a normal passive ISO 144443A tag (PICC). After the anti-collision protocol is passed, the PCD sends a Wake-up command, which wakes up the microcontroller by sending an interrupt. From this point onwards, the AS3953 serves as a data link between the microcontroller and the PCD. AS3953 can also operate as NFCIP-1 target at 106 kb/s.
ams AS3992 UHF Gen 2 Reader Chip includes an integrated analog front-end and provides protocol handling for ISO18000-6c/b 900MHz RFID reader systems. Equipped with multiple built-in programming options, the device is suitable for a wide range of UHF RFID applications. The AS3992 is pin to pin compatible with the previous AS3990/91 IC's. It offers improved receive sensitivity to -86dB, fully programmable Rx DRM filters on chip and pre-distortion. Fully scalable, the AS3992 is ideal for longer range and higher power applications.The AS3992 complies with EPC Class I Generation 2 protocol (ISO180006C) and is ISO 18000-6a/b (in direct mode).
ams AS5145 12-Bit Programmable Magnetic Rotary Encoder is a contact less magnetic rotary encoder for accurate angular measurement over a full turn of 360 degrees. It is a system-on-chip, combining integrated Hall elements, analog front end and digital signal processing in a single device. To measure the angle, only a simple two-pole magnet, rotating over the center of the chip, is required. The magnet can be placed above or below the IC. The absolute angle measurement provides instant indication of the magnet’s angular position with a resolution of 0.0879º = 4096 positions per revolution. This digital data is available as a serial bit stream and as a PWM signal. An internal voltage regulator allows the AS5145 to operate at either 3.3V or 5V supplies.
ams AS5048 Magnetic Rotary Encoders are an easy to use 360° angle position sensor with a 14-bit high resolution output. The maximum system accuracy is 0.05° assuming linearization and averaging is done by the external microcontroller. The IC measures the absolute position of the magnet’s rotation angle and consists of Hall sensors, analog digital converter and digital signal processing. The zero position can be programmed via SPI or I²C command, therefore no programmer is needed anymore. This simplifies the assembly of the complete system because the zero position of the magnet does not need to be mechanically aligned which helps developers to shorten their developing time. The sensor tolerates misalignment, air gap variations, temperature variations and as well external magnetic fields. This robustness and the wide temperature range (-40°C up to +150°C) of the AS5048 makes the IC ideal for rotation angle sensing in harsh industrial and medical environments. Several AS5048 ICs can be connected in daisy chain for serial data read out. The absolute position information of the magnet is directly accessible over a PWM output and can be read out over a standard SPI or a high speed I²C interface. AS5048A has a SPI interface, AS5048B I2C interface and both devices offer a PWM output. An internal voltage regulator allows the AS5048 to operate at either 3.3V or 5V supplies.
Austria Micro Systems TSL2591 very-high sensitivity light-to-digital converter transforms light intensity into a digital signal output capable of direct I2C interface. Austria Micro Systems TSL2591 combines one broadband photodiode (visible plus infrared) and one infrared-responding photodiode on a single CMOS integrated circuit. Two integrating ADCs convert the photodiode currents into a digital output that represents the irradiance measured on each channel. This digital output can be input to a microprocessor where illuminance (ambient light level) in lux is derived using an empirical formula to approximate the human eye response. The TSL2591 supports a traditional level style interrupt that remains asserted until the firmware clears it.
Austria Micro Systems AS1345 high efficiency DC-DC step-up converter contains an internal N-channel and an internal P-channel output isolation switch. Austria Micro Systems AS1345 operates from a 2.9V to 5.0V supply and can boost voltages up to 18V. A hysteretic control scheme is used to provide the highest operating efficiency over a wide range of input and output load conditions. The internal MOSFET switches reduce the external component count and a high switching frequency allows the use of tiny surface mount components. The AS1345 employ a factory set current limit to reduce ripple and external component size in low output current applications. With a 500mA current limit the AS1345 is capable of providing 20mA @ 18V output.
Austria Micro Systems AS1328 is a high-efficiency, synchronous buck converter that can deliver up to 3A. Austria Micro Systems AS1328 is available in adjustable and fixed output voltage versions. The wide input voltage range (2.7V to 5.5V), automatic Powersave Mode and minimal external component requirements make the AS1328 perfect for any single Li-Ion battery powered application. Typical quiescent current with no load is 25μA and decreases to ≤1μA in shutdown mode. The highly efficient duty cycle (100%) provides low dropout operation, prolonging battery life in portable systems. The AS1328 is available with user adjustable output voltage between 0.6V and VIN via an external resistor divider. The switching frequency (1.5MHz) allows the use of a small surface mount inductor. A user adjustable Softstart function limits the input current during start-up. The AS1328 is available in a TQFN (3x3mm) 16-pin package.
ams AS3993 UHF Reader Chip is the first in the next generation of EPC Class 1 Gen2 RFID Reader ICs. It has a completely new low power architecture, down to 2.7V with 65mA, enabling battery powered, small form factor handheld and embedded applications. The AS3993 now delivers high performance Gen 2 in a small QFN48 7x7, while retaining the flexibility, integration and simplicity of the previous generations. The small size combined with the low power operation makes it ideal for embedded or mobile applications.
ams AS1360 Low-Power Positive Voltage Regulator was designed to deliver up to 250mA while consuming only 1.5µA of quiescent current. The device features integrated short-circuit and overcurrent protection. The wide input voltage range, low-dropout voltage, and high-accuracy output voltage makes the AS1360 perfectly suited for 2- and 3-cell battery-powered and portable applications. The low dropout voltage (650mV) prolongs battery life and allows high current in small applications when operated with minimum input-to-output voltage differentials. The device features very stable output voltage (using only 1µF tantalum or aluminum-electrolytic capacitors), strict output voltage regulation tolerances (±0.5%), and excellent line-regulation. The AS1360 is available in a 3-pin SOT23 package.
ams AS3935 Franklin Lightning Sensor™ IC is a programmable fully integrated lightning sensor that detects the presence and approach of potentially hazardous lightning activity in the vicinity and provides an estimation on the distance to the head of the storm. The embedded lightning algorithm checks the incoming signal pattern to reject the potential man-made disturbers. The AS3935 can also provide information on the noise level and inform the external unit (e.g. microcontroller) in case of high noise conditions, with the noise floor generator and noise floor evaluation blocks.
ams AS5132 High Speed Magnetic Rotary Encoder IC is a contactless magnetic rotary encoder for accurate angular measurement over a full turn of 360 degrees. It is a system-on-chip, combining integrated Hall elements, analog front-end, and digital signal processing in a single device. To measure the angle, only a simple two-pole magnet, rotating over the center of the chip is required. The absolute angle measurement provides instant indication of the magnet's angular position with a resolution of 8.5-bit = 360 positions per revolution. This digital data is available as serial output over the interface and as a pulse width modulated (PWM) signal. An additional U,V,W output can be used for a block commutation for a brushless DC motor. An incremental signal is available as an option. In addition to the angle information, the strength of the magnetic field is also available as a 5-bit code. A software programmable (OTP) zero position simplifies assembly as the zero position, and the magnet does not need to be mechanically aligned.
ams AS3910 HF RFID Reader IC is a high performance 13.56MHz HF RFID Reader with ams' unique antenna management technology, making it optimized for applications with directly driven antennas. The AS3910 contains two differential low impedance (1.5Ω) antenna drivers. These drivers are unmatched meaning the IC can deliver up to 8 times the output power of a standard HF Reader IC using the same power supply voltage. Additionally using this configuration means half of the power consumption at the same output power. The IC has an operating voltage down to 2.4V and a low power operating mode of 5mA, making it ideal for portable or battery-powered applications. For applications where high power is required (EMV) the AS3910 can attain up to 700mW, so there is no need for complex external booster circuitry.
ams TSL3301CL/1401CL Linear Optical Sensor Arrays (LSAs) each consist of a linear array of integrating photosensing pixels which measure incident light over a user-defined exposure time and generate a voltage or digital output which represents the light exposure at each pixel. The LSAs are available in a variety of lengths and pixel resolutions (DPI). The analog output may be directly interfaced to an analog-to-digital converter (ADC) for digital processing or comparing black/white thresholds. Applications include contact image sensing, OCR, edge detection, and object measurement in products such as copiers, document scanners, and spectroscopy.
amsTSL2581 Light-to-Digital Converter is a very high sensitivity light-to-digital converter that transforms light intensity to a digital signal output capable of direct I²C interface. ams TSL2581 Light-to-Digital Converter combines one broadband photodiode (visible plus infrared) and one infrared-responding photodiode on a single CMOS integrated circuit capable of providing a near-photopic response over an effective 16-bit dynamic range (16-bit resolution). Two integrating ADCs convert the photodiode currents to a digital output that represents the irradiance measured on each channel. This digital output can be input to a microprocessor where illuminance (ambient light level) in lux is derived using an empirical formula to approximate the human eye response. The device supports a traditional level style interrupt that remains asserted until the firmware clears it.
While useful for general purpose light sensing applications, the ams TSL2581 Light-to-Digital Converter is designed particularly for display panels (LCD, OLED, etc.) with the purpose of extending battery life and providing optimum viewing in diverse lighting conditions. Display panel backlighting, which can account for up to 30 to 40 percent of total platform power, can be automatically managed. This device is also ideal for controlling keyboard illumination based upon ambient lighting conditions. Illuminance information can further be used to manage exposure control in digital cameras. This device is ideal in notebook/tablet PCs, LCD monitors, flat-panel televisions, cell phones, and digital cameras. Other applications include street light control, security lighting, sunlight harvesting, machine vision, and automotive instrumentation clusters.
ams TSL2671 Digital Proximity Detectors each provides a complete proximity detection system and digital interface logic in a single 6-pin package. ams TSL2671 Digital Proximity Detectors each includes a digital proximity sensor with integrated LED driver for the required external IR LED. The proximity function offers a wide range of performance, with four programmable LED drive currents and a pulse repetition range of 1 to 32 pulses. The proximity detection circuitry compensates for ambient light, allowing it to operate in environments ranging from bright sunlight to dark rooms. This wide dynamic range also allows operation in short-distance detection applications behind dark glass, such as cell phones. An internal state machine provides the ability to put the device into a low-power mode for very low average power consumption.
The proximity function specifically targets near-field proximity applications. In cell phones, for example, the proximity detection function can detect when the user positions the phone close to their ear. The device is fast enough to provide proximity information at the high repetition rate needed when answering a phone call. This provides both improved green power saving capability and the added security to lock the screen when the user may accidentally deploy a touch.
ams Light-to-Digital Converter TRI Color Sensors provide red, green, blue, and clear light sensing (RGBC) that detects color chromaticity and illuminance (intensity) of ambient light and provides a digital output with 16-bits of resolution. ams Light-to-Digital Converter TRI Color Sensors include an 8 × 2 array of filtered photodiodes, analog-to-digital converters, and control functions on a single monolithic CMOS integrated circuit. Of the 16 photodiodes, 4 have red filters, 4 have green filters, 4 have blue filters, and 4 have no filter (clear). With the advanced in-package trim capability, device-to-device and system-to-system tolerance can be minimized allowing very precise repeatability to be attained.
ams tri-color and light-to-digital sensors offer increased design flexibility, features, and options for manufacturers of products where color is mission critical. The ams programmable color sensors provide more cost-effective, low-power solutions for color discrimination, determination, and measurement in a wide variety of applications, including color-point feedback control in solid-state illumination and RGB backlight systems, color adjustment in printers, industrial process quality controls, portable medical diagnostic systems, paper and product handling, toys, and games. ams TSC3103 and TSC3104 light-to-voltage color sensors combine three photodiodes with optical filters, amplifiers, and gain-switching circuitry on a single chip. The TSL2771 light-to-digital converter provides both ambient light sensing and proximity detection (when coupled with an external IR LED). The TSL2562 / TSL2563 is a low-voltage light-to-digital converter that transforms light intensity to a digital signal output capable of direct I²C or SMBus interface.
ams programmable color light-to-frequency converters are color-filtered sensors uniformly distributed across the sensing area, eliminating the need for a light diffuser. The ams TCS3200D, TCS3210D, and TCS230D color light-to-frequency converters
interface directly with a microcontroller or DSP and are available in
an 8-pin SoIC package. The output is a square wave and frequency
directly proportional to light intensity. The full-scale output
frequency can be scaled by one of three pre-set values via two control
ams LTV RGB Sensor combines a photodiode, color filter, and transimpedance amplifier on a single die and the output is fed to an ADC for digital processing. This ams LTV RGB Sensor requires fewer components, saves board space, and reduces assembly cost over a discrete photodiode approach, as well as simplifies design and board layout by integrated sensitive analog circuitry on-chip.