Overview
The AD620BR-REEL, produced by Analog Devices Inc., is a low-cost, high-accuracy instrumentation amplifier. It is designed to be easy to use, requiring only one external resistor to set gains ranging from 1 to 10,000. This amplifier is available in 8-lead DIP and SOIC packaging, making it smaller and more power-efficient than discrete designs. With a maximum supply current of 1.3 mA, it is well-suited for battery-powered and portable applications. The AD620BR-REEL offers excellent DC and AC performance, making it ideal for precision data acquisition systems, medical instrumentation, and other applications requiring high accuracy and low noise.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Supply Voltage | ±2.3 | ±18 | V | |
| Quiescent Current | 0.9 | 1.3 | 1.6 | mA |
| Input Offset Voltage | 50 | μV | ||
| Input Offset Drift | 0.6 | μV/°C | ||
| Input Bias Current | 1.0 | nA | ||
| Common-Mode Rejection Ratio (G = 10) | 100 | dB | ||
| Bandwidth (G = 100) | 120 | kHz | ||
| Settling Time to 0.01% (G = 100) | 15 | μs | ||
| Input Voltage Noise @ 1 kHz | 9 | nV/√Hz | ||
| Operating Temperature Range | −40 | 85 | °C |
Key Features
- Easy to Use: Gain set with one external resistor (gain range 1 to 10,000)
- Wide Power Supply Range: ±2.3 V to ±18 V
- Low Power Consumption: Maximum supply current of 1.3 mA
- Excellent DC Performance: 50 μV max input offset voltage, 0.6 μV/°C max input offset drift, and 1.0 nA max input bias current
- Low Noise: 9 nV/√Hz input voltage noise at 1 kHz, 0.28 μV p-p noise (0.1 Hz to 10 Hz)
- High Accuracy: 40 ppm maximum nonlinearity
- Fast Settling Time: 15 μs to 0.01% (G = 100)
- Compact Packaging: Available in 8-lead DIP and SOIC packages
Applications
- Weigh scales
- ECG and medical instrumentation
- Transducer interface
- Data acquisition systems
- Industrial process controls
- Battery-powered and portable equipment
Q & A
- What is the gain range of the AD620BR-REEL?
The gain range of the AD620BR-REEL is from 1 to 10,000, set by one external resistor.
- What is the power supply range for the AD620BR-REEL?
The power supply range is ±2.3 V to ±18 V.
- What is the maximum supply current of the AD620BR-REEL?
The maximum supply current is 1.3 mA.
- What is the input offset voltage of the AD620BR-REEL?
The input offset voltage is 50 μV max.
- What is the common-mode rejection ratio (CMRR) of the AD620BR-REEL at a gain of 10?
The CMRR is 100 dB min at a gain of 10.
- What is the bandwidth of the AD620BR-REEL at a gain of 100?
The bandwidth is 120 kHz at a gain of 100.
- What is the settling time of the AD620BR-REEL to 0.01% at a gain of 100?
The settling time is 15 μs to 0.01% at a gain of 100.
- What is the input voltage noise of the AD620BR-REEL at 1 kHz?
The input voltage noise is 9 nV/√Hz at 1 kHz.
- In what types of packaging is the AD620BR-REEL available?
The AD620BR-REEL is available in 8-lead DIP and SOIC packaging.
- What are some typical applications of the AD620BR-REEL?
Typical applications include weigh scales, ECG and medical instrumentation, transducer interfaces, data acquisition systems, industrial process controls, and battery-powered and portable equipment.
