Overview
The OP27GZ is a precision operational amplifier produced by Analog Devices Inc. It combines the low offset and drift characteristics of the OP07 with high speed and low noise, making it ideal for precision instrumentation and high-performance applications. The OP27GZ is known for its low input offset voltage, high gain bandwidth product, and excellent dynamic accuracy, which are crucial for accurate high-gain amplification of low-level signals.
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 | 0.2 | 1.0 | 0.4 | µV/MO | |
| Input Offset Current | IOS | 7 | 35 | 12 | nA | |
| Input Bias Current | IB | ±10 | ±40 | ±15 | nA | |
| Input Noise Voltage | en | fO = 10 Hz | 3.5 | 5.5 | 3.8 | nV/√Hz |
| Slew Rate | SR | RL ≥ 2 kΩ | 2.8 | V/µs | ||
| Gain Bandwidth Product | GBW | 8 | MHz | |||
| Supply Voltage | ±22 | V | ||||
| Input Voltage | ±22 | V |
Key Features
- Low input offset voltage down to 10 µV and maximum drift of 0.6 µV/°C.
- High gain bandwidth product of 8 MHz and a slew rate of 2.8 V/µs.
- Low noise with an input noise voltage density of 3.5 nV/√Hz at 10 Hz.
- Low input bias current of ±10 nA and low output distortion.
- Good load driving capability with a guaranteed swing of ±10 V into 600 Ω.
- Long-term drift stability of 0.2 µV/month.
Applications
The OP27GZ is suitable for a variety of high-performance applications, including:
- Precision instrumentation such as stable integrators, precision summing amplifiers, and precision voltage threshold detectors.
- Professional audio circuits like tape heads and microphone preamplifiers.
- Comparators and other precision amplification needs.
Q & A
- What is the typical input offset voltage of the OP27GZ?
The typical input offset voltage is 25 µV. - What is the gain bandwidth product of the OP27GZ?
The gain bandwidth product is 8 MHz. - What is the slew rate of the OP27GZ?
The slew rate is 2.8 V/µs. - What is the input noise voltage density at 10 Hz for the OP27GZ?
The input noise voltage density at 10 Hz is 3.5 nV/√Hz. - What is the maximum supply voltage for the OP27GZ?
The maximum supply voltage is ±22 V. - What are the typical applications of the OP27GZ?
The OP27GZ is used in precision instrumentation, professional audio circuits, and other high-performance applications requiring low noise and high accuracy. - How does the OP27GZ handle long-term drift?
The OP27GZ has a long-term drift stability of 0.2 µV/month. - What is the input bias current of the OP27GZ?
The input bias current is typically ±10 nA. - Can the OP27GZ drive heavy loads?
Yes, the OP27GZ has good load driving capability with a guaranteed swing of ±10 V into 600 Ω. - Is the OP27GZ suitable for military temperature ranges?
Yes, the OP27GZ is available in versions that operate over military temperature ranges.
