OP177 GP Precision Op-Amp – Datasheet

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OP177 precision bipolar op amp feature very low offset voltage and drift. Laser-trimmed offset, drift, and input bias current virtually eliminate the need for costly external trimming. The high performance and low cost make them ideally suited to a wide range of precision instrumentation. The IC has a wide range of working conditions and also has direct compatibility with every PMOS, NMOS, & CMOS device.

Precision Operational Amplifier

A Precision operational amplifier is an operational amplifier with better design specifications and topology than the conventional op-amp. Precision Op-amps are more accurate than your average general-purpose op-amps. In terms of design topology, Precision amplifiers have a better precision offset, zero-drift over time, lower internal noise (nV/√Hz), and input bias current. On the component scale, they have precise matching resistors etched in the substrate at the chip level.

For Example; a LM741 op-amp, has an offset voltage of 5mV. The offset voltage signifies the voltage that the user has to apply between the +ve and -ve of the IC, in order to get an output of 0V. On configuring the op-amp to operate at a gain of 100. The gain will not only multiply the input signal, but it will also multiply the offset voltage. This will result in the output voltage being off-value by a factor of +/-0.5V. On considering the OP177; a precision op-amp, with an offset voltage of 25uV. The same gain value of 100, would produce an error of only 2.5mV in a signal that has been amplified by a factor of 100.

OPA177 Pinout

OPA177 Pin Configuration

Pin NoPin NameDescription
1OFFSET TRIM 1Offset Trim Pin 1
2INV-INPUTInverting Input Of Amplifier
3NON-INV-INPUTNon Inverting Input Of Amplifier
4V-Negative Power Supply
5NCNo Connection
6VoOutput Voltage
7V+Positive Power Supply
8OFFSET TRIM 2Offset Trim Pin 2

OPA177 Features

  • LOW OFFSET VOLTAGE: 25µV max
  • LOW DRIFT: 0.3µV/°C
  • HIGH OPEN-LOOP GAIN: 130dB min
  • LOW QUIESCENT CURRENT: 1.5mA typ

Application

  • PRECISION INSTRUMENTATION
  • DATA ACQUISITION
  • TEST EQUIPMENT
  • BRIDGE AMPLIFIER
  • THERMOCOUPLE AMPLIFIER

OP177 Datasheet

You can download this datasheet for OP177 GP Precision Op-Amp from the link given below:

See Also: CD4051 Single 8-channel Multiplexer Demultiplexer – Datasheet | CD4047 Monostable/Astable Multivibrator – Datasheet | CD4022 Divide by 8 Counter/Divider – Datasheet