Overview
The OP37GSZ is a high-performance operational amplifier designed and manufactured by Analog Devices Inc. This device is optimized for circuits with gains greater than five, offering enhanced slew rate and gain-bandwidth product compared to its predecessor, the OP27. The OP37GSZ is renowned for its low noise, high precision, and high speed, making it ideal for a variety of precision instrumentation applications. It features exceptionally low input offset voltage, low drift, and high gain, which are crucial for accurate amplification of low-level signals. The device is available in several package types, including 8-Lead Hermetic DIP, Epoxy Mini-DIP, and 8-Lead SOIC.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max |
|---|---|---|---|---|---|
| Input Offset Voltage | VOS | 10 mV | 25 mV | 100 mV | |
| Long-Term Stability | VOS/Time | 0.2 mV/Mo | 1.0 mV/Mo | 2.0 mV/Mo | |
| Input Offset Current | IOS | 7 nA | 35 nA | 75 nA | |
| Input Bias Current | IB | ±10 nA | ±40 nA | ±80 nA | |
| Input Noise Voltage Density | en | fO = 10 Hz | 3.5 nV/√Hz | 5.5 nV/√Hz | 8.0 nV/√Hz |
| Slew Rate | SR | RL ≥ 2kΩ | 17 V/ms | 17 V/ms | 17 V/ms |
| Gain Bandwidth Product | GBW | fO = 10 kHz | 63 MHz | 63 MHz | 63 MHz |
| Common Mode Rejection Ratio | CMRR | VCM = ±10 V | 108 dB | 122 dB | 116 dB |
| Power Supply Rejection Ratio | PSRR | VS = ±4.5 V to ±18 V | 94 dB | 116 dB | 122 dB |
Key Features
- Low input offset voltage down to 10 mV and low drift of 0.2 mV/month.
- Exceptionally low noise with an input noise voltage density of 3.5 nV/√Hz at 10 Hz.
- High slew rate of 17 V/ms and gain-bandwidth product of 63 MHz.
- Low input bias current and offset current, typically 10 nA and 7 nA, respectively.
- High common mode rejection ratio (CMRR) and power supply rejection ratio (PSRR), exceeding 120 dB.
- Good load driving capability with a guaranteed swing of 10 V into 600 Ω.
- Available in various package types including 8-Lead Hermetic DIP, Epoxy Mini-DIP, and 8-Lead SOIC.
Applications
- Precision instrumentation applications requiring low noise and high accuracy.
- Microphone, tapehead, and RIAA phono preamplifiers due to its high gain and low noise characteristics.
- High-speed signal conditioning for data acquisition systems.
- Professional audio applications where low output distortion and good load driving capability are essential.
- Wide-bandwidth instrumentation where high slew rate and gain-bandwidth product are critical).
Q & A
- What is the typical input offset voltage of the OP37GSZ?
The typical input offset voltage of the OP37GSZ is 25 mV).
- What is the slew rate of the OP37GSZ?
The slew rate of the OP37GSZ is 17 V/ms).
- What is the gain-bandwidth product of the OP37GSZ?
The gain-bandwidth product of the OP37GSZ is 63 MHz).
- What are the typical input bias and offset currents of the OP37GSZ?
The typical input bias current is ±10 nA, and the typical input offset current is 7 nA).
- What is the common mode rejection ratio (CMRR) of the OP37GSZ?
The CMRR of the OP37GSZ exceeds 108 dB).
- What is the power supply rejection ratio (PSRR) of the OP37GSZ?
The PSRR of the OP37GSZ exceeds 94 dB).
- In what package types is the OP37GSZ available?
The OP37GSZ is available in 8-Lead Hermetic DIP, Epoxy Mini-DIP, and 8-Lead SOIC packages).
- What are some common applications of the OP37GSZ?
The OP37GSZ is commonly used in precision instrumentation, microphone and tapehead preamplifiers, high-speed signal conditioning, professional audio, and wide-bandwidth instrumentation).
- What is the input noise voltage density of the OP37GSZ at 10 Hz?
The input noise voltage density of the OP37GSZ at 10 Hz is 3.5 nV/√Hz).
- How does the OP37GSZ handle load driving?
The OP37GSZ has good load driving capability with a guaranteed swing of 10 V into 600 Ω).
