Overview
The OP27GP, produced by Analog Devices Inc., is a precision operational amplifier known for its low noise, high accuracy, and high speed. This amplifier combines the low offset and drift characteristics of the OP07 with the high speed and low noise required for precision instrumentation applications. The OP27GP is ideal for amplifying low-level signals with high gain and accuracy, making it a versatile component in various electronic systems.
Key Specifications
| Parameter | Symbol | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Offset Voltage | VOS | VS = ±15 V, TA = 25°C | 10 | 25 | 30 | µV |
| Long-term VOS Stability | VOS/Time | VS = ±15 V, TA = 25°C | 0.2 | 1.0 | 0.4 | µV/MO |
| Input Offset Current | IOS | VS = ±15 V, TA = 25°C | 7 | 35 | 12 | nA |
| Input Bias Current | IB | VS = ±15 V, TA = 25°C | ±10 | ±40 | ±15 | nA |
| Input Noise Voltage | en | fO = 10 Hz | 3.5 | 5.5 | nV/√Hz | |
| Slew Rate | SR | RL ≥ 2 kΩ | 2.8 | V/µs | ||
| Gain Bandwidth Product | GBW | 8 | MHz | |||
| Common-Mode Rejection Ratio | CMRR | VCM of ±11 V | 126 | dB | ||
| Open-Loop Gain | RL ≥ 2 kΩ | 1.8 million |
Key Features
- Low Noise: 80 nV p-p (0.1 Hz to 10 Hz), 3.5 nV/√Hz at 10 Hz, and a low 1/f noise corner frequency of 2.7 Hz.
- High Speed: Slew rate of 2.8 V/µs and a gain bandwidth product of 8 MHz.
- Low Drift: Long-term drift of 0.2 µV/°C and maximum drift of 0.6 µV/°C.
- High Open-Loop Gain: 1.8 million, ensuring accurate high-gain amplification of low-level signals.
- Low VOS: Input offset voltage as low as 10 µV.
- High CMRR: Common-mode rejection ratio of 126 dB at VCM of ±11 V).
Applications
- Precision Instrumentation: Ideal for stable integrators, precision summing amplifiers, and precision voltage threshold detectors.
- Professional Audio: Used in professional audio circuits such as tape heads and microphone preamplifiers).
- Comparators and Transducer Amplifiers: Suitable for applications requiring high accuracy and low noise).
Q & A
- What is the input offset voltage of the OP27GP?
The input offset voltage of the OP27GP is as low as 10 µV, with a typical value of 25 µV).
- What is the slew rate of the OP27GP?
The slew rate of the OP27GP is 2.8 V/µs for RL ≥ 2 kΩ).
- What is the gain bandwidth product of the OP27GP?
The gain bandwidth product of the OP27GP is 8 MHz).
- What is the common-mode rejection ratio (CMRR) of the OP27GP?
The CMRR of the OP27GP is 126 dB at VCM of ±11 V).
- What are the typical applications of the OP27GP?
The OP27GP is typically used in precision instrumentation, professional audio circuits, comparators, and transducer amplifiers).
- What is the long-term drift of the OP27GP?
The long-term drift of the OP27GP is 0.2 µV/month).
- What is the input noise voltage of the OP27GP?
The input noise voltage of the OP27GP is 3.5 nV/√Hz at 10 Hz).
- What is the open-loop gain of the OP27GP?
The open-loop gain of the OP27GP is 1.8 million).
- What is the maximum supply voltage for the OP27GP?
The maximum supply voltage for the OP27GP is ±22 V).
- Is the OP27GP available in different packages?
