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 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.