Overview
The OP27EP+ precision operational amplifier, produced by Analog Devices Inc., combines the low offset and drift of the OP07 with high speed and low noise characteristics. This amplifier is designed to provide excellent performance in low-noise, high-accuracy amplification of low-level signals. It features exceptionally low noise, high gain, and a high slew rate, making it ideal for precision instrumentation applications. The OP27EP+ is available in various package types, including 8-Lead PDIP, 8-Lead SOIC, and hermetic DIP, among others.
Key Specifications
| Parameter | Symbol | 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 | |||
| Common-Mode Rejection Ratio | CMRR | VCM = ±10 V | 110 | 124 | dB | |
| Supply Voltage | ±15 | ±22 | V | |||
| Operating Temperature Range | –25°C | 85°C | °C |
Key Features
- Low noise: 3.5 nV/√Hz at 10 Hz, with a low 1/f noise corner frequency of 2.7 Hz.
- High gain: 1.8 million and a gain-bandwidth product of 8 MHz.
- High slew rate: 2.8 V/µs.
- Low input bias current: ±10 nA, achieved through a bias-current-cancellation circuit.
- High common-mode rejection ratio (CMRR): 126 dB at VCM of ±11 V.
- Long-term stability: 0.2 µV/month drift.
- Available in various package types: 8-Lead PDIP, 8-Lead SOIC, hermetic DIP, etc..
Applications
- Precision instrumentation: stable integrators, precision summing amplifiers, precision voltage threshold detectors, and comparators.
- Professional audio circuits: tape heads and microphone preamplifiers.
- High-speed data-acquisition systems.
- Direct replacement for 725, OP06, OP07, and OP45 amplifiers.
Q & A
- What is the typical input offset voltage of the OP27EP+? The typical input offset voltage is 25 µV.
- What is the slew rate of the OP27EP+? The slew rate is 2.8 V/µs.
- What is the gain-bandwidth product of the OP27EP+? The gain-bandwidth product is 8 MHz.
- What is the common-mode rejection ratio (CMRR) of the OP27EP+? The CMRR is 126 dB at VCM of ±11 V.
- What are the typical applications of the OP27EP+? Typical applications include precision instrumentation, professional audio circuits, and high-speed data-acquisition systems.
- What is the operating temperature range of the OP27EP+? The operating temperature range is –25°C to 85°C.
- What is the supply voltage range for the OP27EP+? The supply voltage range is ±15 V to ±22 V.
- How does the OP27EP+ achieve low input bias current? The OP27EP+ achieves low input bias current through a bias-current-cancellation circuit.
- What is the long-term stability of the OP27EP+ in terms of input offset voltage drift? The long-term stability is 0.2 µV/month.
- In what package types is the OP27EP+ available? The OP27EP+ is available in 8-Lead PDIP, 8-Lead SOIC, hermetic DIP, and other package types.
