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 No | Pin Name | Description |
---|---|---|
1 | OFFSET TRIM 1 | Offset Trim Pin 1 |
2 | INV-INPUT | Inverting Input Of Amplifier |
3 | NON-INV-INPUT | Non Inverting Input Of Amplifier |
4 | V- | Negative Power Supply |
5 | NC | No Connection |
6 | Vo | Output Voltage |
7 | V+ | Positive Power Supply |
8 | OFFSET TRIM 2 | Offset 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