Texas Instruments | Amplifiers & Linear
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Texas Instruments´ broad selection of op amp products are available in several different process technologies and include high precision, microPower, low voltage, high voltage, high speed, and rail-to-rail devices. In addition, TI has the industry's largest selection of low-power and low-voltage op amps, with features designed to satisfy most applications. Visit the TI productknowledgecenter
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Texas Instruments OPA171 / OPA2171 / OPA4171 36V General-Purpose Op Amps
Texas Instruments OPA171, OPA2171, and OPA4171 36V, single-supply, low-noise operational amplifiers (op amps) have the ability to operate on supplies ranging from +2.7V (±1.35V) to +36V (±18V). TI OPA171, OPA2171, and OPA4171 op amps are available in micro-packages and offer low offset, drift, and bandwidth with low quiescent current. The single (OPA171), dual (OPA2171), and quad (OPA4171) versions all have identical specifications for maximum design flexibility. Input signals beyond the supply rails do not cause phase reversal. This TI op amp family is stable with capacitive loads up to 300pF. The input can operate 100mV below the negative rail and within 2V of the top rail during normal operation.
Texas Instruments OPA2322 20MHz CMOS Operational Amplifiers
Texas Instruments OPA2322 20MHz CMOS Operational Amplifiers (Op Amps) are dual-channel devices featuring low noise and rail-to-rail inputs/outputs optimized for low-power, single-supply applications. TI OPA2322 op amps are specified over a wide supply range of 1.8V to 5.5V. The low quiescent current of 1.5mA per channel makes these TI devices well-suited for power-sensitive applications. TI OPA2322 op amps combine very low noise very low noise (8.5 nV/√Hz at 1 kHz), high gain-bandwidth (20 MHz), and fast slew rate (10 V/µs). These TI devices feature low THD+N, making them excellent for consumer audio applications, particularly single-supply systems.
Texas Instruments TAS5727 25W Digital Power Amplifiers
Texas Instruments TAS5727 25W digital audio power amplifiers are efficient devices for driving stereo bridge-tied speakers. The TI TAS5727 features speaker equalization (EQ) that improves audio performance. These TI digital audio power amplifiers also provide two band dynamic range compression (DRC) that can be used as a power limiter and enables speaker protection, easy listening, and night-mode listening. The TAS5727 also offers autodetect, which automatically detects sample-rate changes without need for external microprocessor intervention. These TI audio power amplifiers are ideal for use in LCD TV, LED TV, and soundbar applications.
Texas Instruments TPA6138A2 / TPA6139A2 DirectPath™ Headphone Drivers
Texas Instruments TPA6138A2 and TPA6139A2 DirectPath™ headphone drivers are designed for use in PDP / LCD TV applications as well as Blu-Ray™ and DVD players, mini / micro combo systems, and sound cards. The TI TPA6138A2 pop-free stereo headphone amplifier with adjustable gain is designed to allow the removal of the output dc-blocking capacitors for reduced component count and cost. The TPA6138A2 is capable of driving 25 mW into a 32-Ω load with 3.3-V supply voltage. The device has differential inputs and uses external gain-setting resistors that support a gain range of ±1 V/V to ±10 V/V. The TI TPA6139A2 pop-free headphone driver with programmable fixed gain does not require a power supply greater than 3.3V to generate 25mW and does not require a split rail power supply. The TI TPA6139A2 allows the designer to choose from 12 internal programmable gain settings to match the line driver with the Codec output level.
Texas Instruments OPA377 CMOS Operational Amplifier
The Texas Instruments OPA377 operational amplifier (op amp) is a wide-bandwidth CMOS amplifier that provides very low noise, low input bias current, and low offset voltage while operating on a low quiescent current of 0.76mA. TI OPA377 op amps are optimized for low-voltage, single-supply applications. The exceptional combination of AC and DC performance make them ideal for a wide range of applications, including small signal conditioning, audio, and active filters. In addition, the TI OPA377 has a wide supply range with excellent PSRR, making it attractive for applications that run directly from batteries without regulation.
Texas Instruments OPA2670 VSDL2 Line Driver with Power Control
Texas Instruments OPA2670 VSDL2 line driver with power control provides the high output current and low distortion required in emerging xDSL and Power Line Modem driver applications. Operating on a single +12V supply, the TI OPA2670 VSDL2 line driver consumes a low 30.5mA quiescent current to deliver a very high 700mA output current. This output current on the TI OPA2670 supports even the most demanding xDSL requirements with greater than 450mA minimum output current (+25°C minimum value) with low harmonic distortion. Differential driver applications deliver less than -71dBc distortion at the peak upstream power levels of full-rate ADSL. The high 320MHz bandwidth also supports the most demanding VDSL2 line driver requirements. Power control features are included to allow system power to be minimized.
Texas Instruments LM833 Dual High-Speed Audio Op Amp
The Texas Instruments LM833 is a dual high-speed operational amplifier (op amp) with high-performance specifications for use in quality audio and data-signal applications. The TI LM833 dual op amp operates over a wide range of single- and dual-supply voltage with low noise, high-gain bandwidth, and high slew rate. Additional features include low total harmonic distortion, excellent phase and gain margins, large output voltage swing with no deadband crossover distortions, and symmetrical sink/source performance. The dual amplifiers are utilized widely in circuit of audio optimized for all preamp and high level stages in PCM and HiFi systems. The TI LM833 is pin-for-pin compatible with industry-standard dual operation amplifiers' pin assignments. With addition of a preamplifier, the gain of the power stage can be greatly reduced to improve performance.
Texas Instruments LM324 Quadruple Operational Amplifier
The Texas Instruments LM324 quadruple operational amplifier (op amp) consists of four independent high-gain frequency-compensated operational amplifiers that are designed specifically to operate from a single supply over a wide range of voltages. Operation from split supplies also is possible with the TI LM324 op amp if the difference between the two supplies is 3 V to 32 V (3 V to 26 V for the LM2902), and VCC is at least 1.5 V more positive than the input common-mode voltage. The low supply-current drain is independent of the magnitude of the supply voltage. The TI LM324 op amp is designed for a variety of applications, including transducer amplifiers, DC amplification blocks, and all the conventional operational-amplifier circuits that now can be more easily implemented in single-supply-voltage systems.
Texas Instruments OPA2140 JFET Operational Amplifier
The Texas Instruments OPA2140 JFET operational amplifier (op amp) family is a series of low-power JFET input amplifiers that feature good drift and low input bias current. The rail-to-rail output swing and input range that includes V- allows designers to take advantage of the low-noise characteristics of JFET amplifiers while also interfacing to modern, single-supply, precision analog-to-digital converters (ADCs) and digital-to-analog converters (DACs). The TI OPA2140 JFET op amp is ideal for use with a variety of applications, including battery-powered instruments, industrial controls, medical instrumentation, and more.
Texas Instruments INA219 High-Side Current Shunt and Power Monitor
The Texas Instruments INA219 high-side current shunt and power monitor with an I²C interface monitors both shunt drop and supply voltage with programmable conversion times and filtering. A programmable calibration value, combined with an internal multiplier, enables the TI INA219 to provide direct readouts in amperes. An additional multiplying register calculates power in watts. The I²C interface of this TI high-side current shunt and power monitor features 16 programmable addresses. The INA219 is available in two grades: A and B. The B grade version has higher accuracy and higher precision specifications. The INA219 senses across shunts on buses that can vary from 0V to 26V. The device uses a single +3V to +5.5V supply, drawing a maximum of 1mA of supply current. The INA219 operates from -40°C to +125°C.
Texas Instruments TPS7A4901 / TPS7A3001 Linear Regulators
The Texas Instruments TPS7A4901 is a positive, high-voltage (+36V), ultralow noise (15.4µVRMS, 72dB PSRR) linear regulator capable of sourcing a maximum load of 150mA. The TI TPS7A3001 is a negative, high-voltage (-36V), ultralow-noise (15.1µVRMS, 72dB PSRR) linear regulator capable of sourcing a maximum load of 200mA. These TI linear regulators include a CMOS logic-level compatible enable pin and capacitor-programmable soft-start function that allows for customized power-management schemes. Other features available include built-in current limit and thermal shutdown protection to safeguard the device and system during fault conditions. The TPS7A4901 and TPS7A3001 linear regulators are ideal for high-accuracy, high-precision instrumentation applications where clean voltage rails are critical to maximize system performance. The TI TPS7A30-49EVM-567 evaluation module is a fully assembled and tested circuit for evaluating the TPS7A3001 and TPS7A4901 low-dropout linear regulators in the DGN (3mm x 5mm MSOP-8) package.
Texas Instruments INA199Ax Current Shunt Monitors
Texas Instruments INA199Ax current shunt monitors can sense voltage drops across shunts at common-mode voltages from -0.3V to 26V independent of the supply voltage. TI INA199Ax current shunt monitors provide three available fixed gains: 50V/V (INA199A1), 100V/V (INA199A2), and 200V/V (INA199A3). The low offset of the Zero-Drift architecture enables current sensing with maximum drops across the shunt as low as 10mV full-scale. These highly accurate TI current shunt monitors are ideal for use in notebook computers, cell phones, telecom equipment, power management applications, battery chargers, and welding equipment.