Overview
The OP37GPZ is a precision operational amplifier (op-amp) produced by Analog Devices Inc. It is designed to offer high performance, low noise, and high speed, making it ideal for various precision applications. The OP37GPZ is optimized for circuits with gains greater than five, featuring a high slew rate of 17 V/μs and a gain-bandwidth product of 63 MHz. It combines the low offset and drift of the OP07 with higher speed and lower noise characteristics, making it suitable for instrumentation, audio, and data acquisition systems.
Key Specifications
| Attribute | Value |
|---|---|
| Brand | Analog Devices |
| Package Type | 8-Lead PDIP |
| Pin Count | 8 |
| Typical Dual Supply Voltage | ±12 V, ±15 V, ±18 V, ±5 V, ±9 V |
| Minimum Operating Temperature | -40 °C |
| Maximum Operating Temperature | +85 °C |
| Typical Gain Bandwidth Product | 63 MHz |
| Typical Slew Rate | 17 V/μs |
| Input Offset Voltage (VOS) | 10 - 25 mV (Typical) |
| Input Offset Current (IOS) | 7 - 35 nA (Typical) |
| Input Bias Current (IB) | ±10 - ±40 nA (Typical) |
| Input Noise Voltage Density | 3.5 nV/√Hz at 10 Hz |
| Common Mode Rejection Ratio (CMRR) | 108 - 122 dB |
| Power Supply Rejection Ratio (PSRR) | 120 dB |
Key Features
- Low input offset voltage and drift, with VOS as low as 10 mV and TCVOS of 0.2 mV/°C.
- High gain-bandwidth product of 63 MHz and a slew rate of 17 V/μs, making it suitable for high-speed applications.
- 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.
- Low input bias and offset currents due to bias-current cancellation circuitry.
- 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 and low output distortion, making it excellent for professional audio applications.
- Rugged construction with an 8-lead PDIP package and RoHS compliance.
Applications
- Instrumentation Amplifiers: For precise signal amplification in medical instrumentation, laboratory instruments, and sensor signal processing.
- Low Noise Preamplifiers: For audio and other low-level signal applications such as microphone preamplifiers and audio equipment.
- Data Acquisition Systems: Used in the front end to amplify sensor outputs before Analog-to-Digital Conversion (ADC).
- Active Filters: Creating high-performance band-pass, low-pass, or high-pass filters in precision audio processing or signal conditioning circuits.
- Analog Computation Circuits: Such as integrators, differentiators, or analog computational circuits in scientific instrumentation.
- Voltage References and Regulators: Used in precision voltage reference circuits and low dropout (LDO) regulators.
- Transducer Interface Circuits: For interfacing with various transducers like strain gauges, thermocouples, and piezoelectric sensors.
- Signal Conditioning: Pre-conditioning signals in control systems and automation equipment to enhance signal quality before further processing.
- Feedback Control Systems: Serving as error amplifiers in PWM controllers, servo loops, and other precise control systems.
- Medical Equipment: Diagnostic and imaging equipment where high accuracy and low noise are essential, such as ECG/EKG machines and medical imaging devices.
Q & A
- What is the typical gain-bandwidth product of the OP37GPZ?
The typical gain-bandwidth product of the OP37GPZ is 63 MHz.
- What is the slew rate of the OP37GPZ?
The slew rate of the OP37GPZ is 17 V/μs.
- What is the input offset voltage range for the OP37GPZ?
The input offset voltage (VOS) for the OP37GPZ typically ranges from 10 to 25 mV.
- What is the input noise voltage density of the OP37GPZ at 10 Hz?
The input noise voltage density of the OP37GPZ at 10 Hz is 3.5 nV/√Hz.
- What are the typical operating temperatures for the OP37GPZ?
The OP37GPZ operates from -40 °C to +85 °C.
- Is the OP37GPZ RoHS compliant?
Yes, the OP37GPZ is RoHS compliant.
- What types of applications is the OP37GPZ suitable for?
The OP37GPZ is suitable for instrumentation, low noise preamplifiers, data acquisition systems, active filters, analog computation circuits, voltage references and regulators, transducer interface circuits, signal conditioning, feedback control systems, and medical equipment.
- What is the common mode rejection ratio (CMRR) of the OP37GPZ?
The CMRR of the OP37GPZ exceeds 108 dB.
- What is the power supply rejection ratio (PSRR) of the OP37GPZ?
The PSRR of the OP37GPZ exceeds 120 dB.
- What package type is the OP37GPZ available in?
The OP37GPZ is available in an 8-lead PDIP package.
