Overview
The OP37EPZ, produced by Analog Devices Inc., is a low-noise, precision, high-speed operational amplifier. It is designed to provide high performance in circuits with gains greater than five, making it ideal for precision instrumentation applications. The OP37EPZ offers exceptionally low noise, high gain, and low drift, making it suitable for accurate high-gain amplification of low-level signals.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Offset Voltage | VOS | 10 | 25 | 100 | mV | |
| Average Input Offset Drift | TCVOS | 0.2 | 0.6 | 1.8 | mV/°C | |
| Input Offset Current | IOS | 7 | 35 | 75 | nA | |
| Input Bias Current | IB | ±10 | ±40 | ±80 | nA | |
| Input Noise Voltage Density | en | fO = 10 Hz | 3.5 | 5.5 | 8.0 | nV/√Hz |
| Slew Rate | SR | RL ≥ 2kΩ | 17 | 17 | 17 | V/ms |
| Gain Bandwidth Product | GBW | fO = 10 kHz | 63 | 63 | 63 | MHz |
| Common Mode Rejection Ratio | CMRR | VCM = ±10 V | 108 | 122 | 116 | dB |
| Power Supply Rejection Ratio | PSRR | VS = ±4.5 V to ±18 V | 120 | 120 | 120 | dB |
Key Features
- Exceptionally low noise with an input noise voltage density of 3.5 nV/√Hz at 10 Hz and a low 1/f noise corner frequency of 2.7 Hz.
- High gain of 1.8 million and high gain-bandwidth product of 63 MHz.
- Low input bias current of 10 nA and offset current of 7 nA.
- High slew rate of 17 V/ms.
- Excellent load driving capability with a guaranteed swing of 10 V into 600 Ω.
- High common mode rejection ratio (CMRR) and power supply rejection ratio (PSRR) exceeding 120 dB.
- Long-term stability with a drift of 0.2 mV/month.
Applications
- Precision instrumentation.
- Microphone, tapehead, and RIAA phono preamplifiers.
- High-speed signal conditioning for data acquisition systems.
- Wide-bandwidth instrumentation.
- Professional audio applications due to its good load driving capability and low output distortion.
Q & A
- What is the primary application of the OP37EPZ operational amplifier?
The OP37EPZ is primarily used in precision instrumentation, high-speed signal conditioning, and professional audio applications. - What are the key noise specifications of the OP37EPZ?
The OP37EPZ has an input noise voltage density of 3.5 nV/√Hz at 10 Hz and a low 1/f noise corner frequency of 2.7 Hz. - What is the gain-bandwidth product of the OP37EPZ?
The gain-bandwidth product of the OP37EPZ is 63 MHz. - What is the slew rate of the OP37EPZ?
The slew rate of the OP37EPZ is 17 V/ms. - What are the CMRR and PSRR values of the OP37EPZ?
The CMRR and PSRR values of the OP37EPZ exceed 120 dB. - How does the OP37EPZ handle long-term stability?
The OP37EPZ has a long-term stability with a drift of 0.2 mV/month. - What are the typical input bias and offset currents of the OP37EPZ?
The typical input bias current is ±10 nA, and the typical offset current is 7 nA. - What is the output stage capability of the OP37EPZ?
The output stage has a guaranteed swing of 10 V into 600 Ω and low output distortion. - What are some common package types for the OP37EPZ?
The OP37EPZ is available in 8-Lead Hermetic DIP, Epoxy Mini-DIP, and 8-Lead SO packages. - What is the maximum supply voltage for the OP37EPZ?
The maximum supply voltage for the OP37EPZ is 22 V.
