Overview
The OP177FPZ, produced by Analog Devices Inc., is an ultraprecision operational amplifier renowned for its exceptional performance characteristics. This amplifier is designed to offer high precision, low noise, and excellent stability over a wide range of temperatures. It is particularly suited for applications requiring high closed-loop gain accuracy and minimal drift over temperature. The OP177FPZ is available in 8-lead PDIP and 8-lead SOIC packages, making it versatile for various design needs.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Input Offset Voltage | VOS | 10 | 25 | 25 | μV |
| Input Offset Voltage Drift | ΔVOS/ΔT | 0.3 | 0.4 | μV/°C | |
| Input Bias Current | IB | -0.2 | 1.2 | 2 | nA |
| Input Offset Current | IOS | 0.3 | 1.5 | 2.8 | nA |
| Common-Mode Rejection Ratio | CMRR | 130 | dB | ||
| Power Supply Rejection Ratio | PSRR | 115 | dB | ||
| Supply Current | ISY | 2 | mA | ||
| Operating Temperature Range | -40 | 85 | °C |
Key Features
- Exceptional offset voltage of 25 μV maximum at room temperature and a drift of 0.3 μV/°C maximum, ensuring high system accuracy over temperature.
- High open-loop gain of 12 V/μV, maintained over the full ±10 V output range.
- Excellent common-mode rejection ratio (CMRR) of 130 dB minimum and power supply rejection ratio (PSRR) of 115 dB minimum.
- Low supply current of 2 mA maximum.
- No need for external offset voltage adjustment due to its ultralow VOS and exceptional offset voltage drift.
- Available in 8-lead PDIP and 8-lead SOIC packages.
- Extended industrial temperature range of -40°C to +85°C.
Applications
The OP177FPZ is ideal for various precision applications, including:
- High closed-loop gain circuits where accuracy and stability are crucial.
- Instrumentation and control systems, such as thermocouple, RTD, and strain-bridge signal conditioning.
- Low noise, bipolar input operational amplifier applications, serving as a cost-effective alternative to chopper-stabilized amplifiers.
- Line-powered and portable instrumentation.
Q & A
- What is the maximum input offset voltage of the OP177FPZ at room temperature?
The maximum input offset voltage is 25 μV at room temperature. - What is the drift of the input offset voltage over temperature for the OP177FPZ?
The drift is 0.3 μV/°C maximum. - What is the open-loop gain of the OP177FPZ?
The open-loop gain is 12 V/μV, maintained over the full ±10 V output range. - What are the CMRR and PSRR values for the OP177FPZ?
The CMRR is 130 dB minimum, and the PSRR is 115 dB minimum. - What is the maximum supply current of the OP177FPZ?
The maximum supply current is 2 mA. - In what temperature range can the OP177FPZ operate?
The operating temperature range is -40°C to +85°C. - What packages are available for the OP177FPZ?
The OP177FPZ is available in 8-lead PDIP and 8-lead SOIC packages. - Does the OP177FPZ require external offset voltage adjustment?
No, it does not require external offset voltage adjustment due to its ultralow VOS and exceptional offset voltage drift. - What are some typical applications of the OP177FPZ?
Typical applications include high closed-loop gain circuits, instrumentation and control systems, and low noise bipolar input operational amplifier applications. - Is the OP177FPZ suitable for portable instrumentation?
Yes, it is suitable for both line-powered and portable instrumentation.
