Overview
The OP27AJ/883C is a precision operational amplifier produced by Analog Devices Inc. This component combines the low offset and drift characteristics of the OP07 with high speed and low noise, making it ideal for precision instrumentation and high-gain amplification applications. The OP27AJ/883C is particularly suited for environments requiring high accuracy and stability, such as professional audio and data-acquisition systems.
Key Specifications
| Parameter | Symbol | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input Offset Voltage | VOS | 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 (0.1 Hz to 10 Hz) | en p-p | 0.08 | 0.18 | 0.09 | µV p-p | |
| Input Noise Voltage Density at 10 Hz | en | fO = 10 Hz | 3.5 | 5.5 | 3.8 | nV/√Hz |
| Slew Rate | 2.8 | V/µs | ||||
| Gain Bandwidth Product | 8 | MHz |
Key Features
- Low noise: 80 nV p-p (0.1 Hz to 10 Hz), 3 nV/√Hz at 10 Hz.
- Low drift: 0.2 µV/°C.
- High speed: 2.8 V/µs slew rate, 8 MHz gain bandwidth.
- Low VOS: 10 µV, high CMRR: 126 dB at VCM of ±11 V.
- High open-loop gain: 1.8 million.
- Low input bias current: ±10 nA, achieved by a bias current cancellation circuit.
- Good load driving capability: guaranteed swing of ±10 V into 600 Ω.
Applications
- Precision instrumentation applications due to low offset and drift.
- High-gain amplification of low-level signals in data-acquisition systems.
- Professional audio applications requiring low noise and high dynamic accuracy.
Q & A
- What is the input offset voltage of the OP27AJ/883C? The input offset voltage is typically 25 µV, with a maximum of 30 µV.
- What is the slew rate of the OP27AJ/883C? The slew rate is 2.8 V/µs.
- What is the gain bandwidth product of the OP27AJ/883C? The gain bandwidth product is 8 MHz.
- What are the typical noise characteristics of the OP27AJ/883C? The input noise voltage is 3.5 nV/√Hz at 10 Hz, and the peak-to-peak noise from 0.1 Hz to 10 Hz is 0.08 µV to 0.18 µV.
- What is the input bias current of the OP27AJ/883C? The input bias current is typically ±10 nA.
- What are the operating temperature ranges for the OP27AJ/883C? The operating temperature range is −55°C to +125°C for the military grade.
- What is the CMRR of the OP27AJ/883C? The common-mode rejection ratio (CMRR) is 126 dB at VCM of ±11 V.
- What are the typical applications of the OP27AJ/883C? Typical applications include precision instrumentation, high-gain amplification in data-acquisition systems, and professional audio.
- How does the OP27AJ/883C handle load driving? It has good load driving capability with a guaranteed swing of ±10 V into 600 Ω.
- What is the long-term VOS stability of the OP27AJ/883C? The long-term VOS stability is 0.2 µV/MO to 0.4 µV/MO.
