Texas Instruments OPA191
The OPAx191 family (OPA191, OPA2191, and OPA4191) is a new generation of 36-V, e-trim™ operational amplifiers. These devices offer outstanding dc precision and ac performance, including rail-to-rail input/output, low offset voltage (±5 µV, typ), low offset drift (±0.2 µV/°C, typ), and 2-MHz bandwidth. The OPAx191 family of op amps is available in standard packages and is specified from –40°C to +125°C.FEATURES
●1 Low offset voltage: ±5 µV● Low offset voltage drift: ±0.1 µV/°C
● Low noise: 15 nV/√Hz at 1 kHz
● High common-mode rejection: 140 dB
● Low bias current: ±5 pA
● Rail-to-rail input and output
● Wide bandwidth: 2.5-MHz GBW
● High slew rate: 5 V/µs
● Low quiescent current: 140 µA per amplifier
● Wide supply: ±2.25 V to ±18 V, 4.5 V to 36 V
● EMI/RFI filtered inputs
● Differential input voltage range to supply rail
● High capacitive load drive capability: 1 nF
● Industry standard packages: – Single in SOIC-8, SOT-5, and VSSOP-8 – Dual in SOIC-8 and VSSOP-8 – Quad in SOIC-14, TSSOP-14, and WQFN-16 2
APPLICATIONS
● Multiplexed data-acquisition systems● Test and measurement equipment
● High-resolution ADC driver amplifiers
● SAR ADC reference buffers
● Programmable logic controllers
● High-side and low-side current sensing
● High precision comparator 3
DESCRIPTION
Unique features, such as differential input-voltage range to the supply rail, high output current (±65 mA), high cap...