Overview
The OP177GSZ from Analog Devices Inc. is a high-precision operational amplifier renowned for its exceptional performance characteristics. This bipolar input operational amplifier is designed to offer outstanding precision, making it an ideal choice for applications requiring high accuracy and stability. The OP177GSZ is available in an 8-lead SOIC package and operates over an extended industrial temperature range of −40°C to +85°C.
Key Specifications
| Parameter | Symbol | Test Conditions/Comments | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Offset Voltage | VOS | At VS = ±15 V, TA = 25°C | 10 | 25 | 60 | μV |
| Long-term Input Offset Voltage Stability | ΔVOS/time | 0.3 | 0.4 | μV/mo | ||
| Input Offset Current | IOS | 0.3 | 1.5 | 2.8 | nA | |
| Input Bias Current | IB | −0.2 | +1.2 | +2.8 | nA | |
| Input Noise Voltage | en | fO = 1 Hz to 100 Hz | 118 | 150 | nV rms | |
| Input Noise Current | in | fO = 1 Hz to 100 Hz | 3 | 8 | pA rms | |
| Differential Input Resistance | RIN | 26 | 45 | MΩ | ||
| Common Mode Input Resistance | RINCM | 200 | GΩ | |||
| Supply Voltage | V+ | ±22 | V | |||
| Operating Temperature Range | TA | −40 | +85 | °C |
Key Features
- High Precision: The OP177GSZ boasts an extremely low input offset voltage of 25 μV maximum at room temperature and a low offset voltage drift of 0.3 μV/°C, ensuring high accuracy over temperature.
- Low Noise: This operational amplifier features low input noise voltage and current, making it suitable for noise-sensitive applications.
- High Gain Accuracy: With an open-loop gain of 12 V/μV and excellent gain linearity, the OP177GSZ is ideal for high closed-loop gain applications.
- High CMRR and PSRR: Common Mode Rejection Ratio (CMRR) of 130 dB minimum and Power Supply Rejection Ratio (PSRR) of 115 dB minimum ensure robust performance against common-mode and power supply noise.
- Low Supply Current: The OP177GSZ has a maximum supply current of 2 mA, making it a cost-effective alternative to chopper-stabilized amplifiers.
- Extended Temperature Range: Operates over an extended industrial temperature range of −40°C to +85°C.
Applications
- Precision Instrumentation: Ideal for precision measurement and instrumentation due to its high accuracy and stability.
- Medical Devices: Suitable for medical equipment requiring high precision and low noise.
- Aerospace and Defense: Used in various aerospace and defense applications where high reliability and precision are critical.
- Industrial Automation: Applicable in industrial automation systems that demand high accuracy and robust performance.
- Audio and Video Equipment: Can be used in high-quality audio and video equipment to ensure low noise and high fidelity.
Q & A
- What is the maximum input offset voltage of the OP177GSZ at room temperature?
The maximum input offset voltage is 25 μV at room temperature.
- What is the offset voltage drift of the OP177GSZ?
The offset voltage drift is 0.3 μV/°C maximum.
- What is the typical open-loop gain of the OP177GSZ?
The typical open-loop gain is 12 V/μV.
- What are the CMRR and PSRR values of the OP177GSZ?
The CMRR is 130 dB minimum, and the PSRR is 115 dB minimum.
- What is the maximum supply current of the OP177GSZ?
The maximum supply current is 2 mA.
- In what temperature range does the OP177GSZ operate?
The OP177GSZ operates over an extended industrial temperature range of −40°C to +85°C.
- What package types are available for the OP177GSZ?
The OP177GSZ is available in 8-lead SOIC packages.
- What are some common applications of the OP177GSZ?
Common applications include precision instrumentation, medical devices, aerospace and defense, industrial automation, and high-quality audio and video equipment.
- How does the OP177GSZ compare to chopper-stabilized amplifiers?
The OP177GSZ offers chopper-type performance without the usual problems of high noise, low frequency chopper spikes, and bulky external components.
- What is the input noise voltage of the OP177GSZ?
The input noise voltage is 118 nV rms to 150 nV rms over the frequency range of 1 Hz to 100 Hz.
