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ADI OP491GSZ

Manufacturer
ADI
MPN
OP491GSZ
LCSC Part #
C581281
Packaging
SOIC-14
Customer #
Key Attributes
Rail-to-Rail Input/Output Op Amps
DatasheetADI OP491GSZ
RoHS Compliance1 documents available
Alternative Parts5
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement

Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Linear/Amplifiers/Instrumentation, Op Amps, Buffer Amps
ManufacturerADI
PackagingSOIC-14
Output Current13.5mA
Number of Channels4
Vos - Input Offset Voltage700uV
Slew Rate500V/ms
Input Offset Current(Ios)11nA
Operating Temperature-40℃~+125℃
Ib - Input Bias Current95nA
Common Mode Rejection Ratio(CMRR)100dB
Input Offset Voltage Drift(Vos TC)1.1uV/℃
Quiescent Current350uA
Gain Bandwidth Product3MHz
FeaturesOvervoltage Protection
Input Voltage Noise Density42nV/√Hz@1kHz
Dual Supply-5V~5V
Rail to RailRail-to-Rail Input, Rail-to-Rail Output
Single Supply2.7V~12V
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Introduction

AI Translation

The OP191, OP291, and OP491 are single, dual, and quad micropower, single-supply, 3 MHz bandwidth amplifiers featuring rail-to-rail inputs and outputs. All are guaranteed to operate from a +3 V single supply as well as ±5 V dual supplies.

Fabricated on Analog Devices CBCMOS process, the OPx91 family has a unique input stage that allows the input voltage to safely extend 10 V beyond either supply without any phase inversion or latch-up. The output voltage swings to within millivolts of the supplies and continues to sink or source current all the way to the supplies.

Applications for these amplifiers include portable telecommunications equipment, power supply control and protection, and interface for transducers with wide output ranges. Sensors requiring a rail-to-rail input amplifier include Hall effect, piezo electric, and resistive transducers.

The ability to swing rail-to-rail at both the input and output enables designers to build multistage filters in single-supply systems and to maintain high signal-to-noise ratios.

The OP191/OP291/OP491 are specified over the extended industrial -40°C to +125°C temperature range.

Features

AI Translation
  • Single-supply operation: 2.7 V to 12 V
  • Wide input voltage range
  • Rail-to-rail output swing
  • Low supply current: 300 μA/amp
  • Wide bandwidth: 3 MHz
  • Slew rate: 0.5 V/μs
  • Low offset voltage: 700 μV
  • No phase reversal

Applications

AI Translation
  • Industrial process control
  • Battery-powered instrumentation
  • Power supply control and protection
  • Telecommunications
  • Remote sensors
  • Low voltage strain gage amplifiers
  • DAC output amplifiers