Overview
The OP27EPZ is a low noise, precision operational amplifier produced by Analog Devices Inc. This device combines the low offset and drift characteristics of the OP07 with high speed and low noise, making it ideal for precision instrumentation applications. The OP27EPZ offers offsets down to 25 µV and a maximum drift of 0.6 µV/°C, ensuring high accuracy in amplifying low-level signals. It features a gain bandwidth product of 8 MHz and a slew rate of 2.8 V/µs, providing excellent dynamic accuracy in high-speed data-acquisition systems.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Offset Voltage (VOS) | 10 µV (typ), 25 µV (max) | VS = ±15 V, TA = 25°C |
| Offset Voltage Drift (TCVOS) | 0.2 µV/°C (typ), 0.6 µV/°C (max) | VS = ±15 V, TA = 25°C |
| Noise Voltage (en) | 3.5 nV/√Hz at 10 Hz | VS = ±15 V, TA = 25°C |
| Noise Peak-to-Peak (0.1 Hz to 10 Hz) | 80 nV p-p | VS = ±15 V, TA = 25°C |
| Slew Rate | 2.8 V/µs | VS = ±15 V, TA = 25°C |
| Gain Bandwidth Product | 8 MHz | VS = ±15 V, TA = 25°C |
| Common Mode Rejection Ratio (CMRR) | 126 dB at VCM of ±11 V | VS = ±15 V, TA = 25°C |
| Open-Loop Gain | 1.8 million | VS = ±15 V, TA = 25°C |
| Operating Temperature Range | 0°C to 70°C (OP27E) | |
| Lead Temperature Range (Soldering, 60 sec) | 300°C | |
| Junction Temperature | −65°C to +150°C |
Key Features
- Low Noise: 80 nV p-p (0.1 Hz to 10 Hz), 3.5 nV/√Hz at 10 Hz.
- Low Drift: 0.2 µV/°C (typical), 0.6 µV/°C (maximum).
- High Speed: 2.8 V/µs slew rate, 8 MHz gain bandwidth.
- Low Offset Voltage: 10 µV (typical), 25 µV (maximum).
- High CMRR: 126 dB at VCM of ±11 V.
- High Open-Loop Gain: 1.8 million.
- Low Input Bias Current: ±10 nA.
- Good Load Driving Capability: Guaranteed swing of ±10 V into 600 Ω.
Applications
- Precision Instrumentation: Ideal for applications requiring high accuracy and low noise, such as stable integrators, precision summing amplifiers, and precision voltage threshold detectors.
- Professional Audio: Suitable for professional audio circuits like tape heads and microphone preamplifiers due to its low output distortion and good load driving capability.
- Comparators: Can be used in comparator circuits requiring high precision and low noise.
- Data-Acquisition Systems: Excellent for high-speed data-acquisition systems due to its high gain bandwidth product and slew rate.
Q & A
- What is the typical offset voltage of the OP27EPZ?
The typical offset voltage of the OP27EPZ is 10 µV.
- What is the maximum drift of the OP27EPZ?
The maximum drift of the OP27EPZ is 0.6 µV/°C.
- What is the slew rate of the OP27EPZ?
The slew rate of the OP27EPZ is 2.8 V/µs.
- What is the gain bandwidth product of the OP27EPZ?
The gain bandwidth product of the OP27EPZ is 8 MHz.
- What is the common mode rejection ratio (CMRR) of the OP27EPZ?
The CMRR of the OP27EPZ is 126 dB at VCM of ±11 V.
- What are the typical applications of the OP27EPZ?
The OP27EPZ is typically used in precision instrumentation, professional audio circuits, comparators, and high-speed data-acquisition systems.
- What is the operating temperature range for the OP27EPZ?
The operating temperature range for the OP27EPZ is 0°C to 70°C.
- What is the lead temperature range for soldering the OP27EPZ?
The lead temperature range for soldering the OP27EPZ is 300°C for 60 seconds.
- What is the junction temperature range for the OP27EPZ?
The junction temperature range for the OP27EPZ is −65°C to +150°C.
- How does the OP27EPZ handle input bias current?
The OP27EPZ achieves a low input bias current of ±10 nA through a bias current cancellation circuit.
- What is the output stage capability of the OP27EPZ?
The output stage of the OP27EPZ has a guaranteed swing of ±10 V into 600 Ω and low output distortion.
