Overview
The AD621BRZ-R7 is a low drift, low power instrumentation amplifier produced by Analog Devices Inc. This component is designed to offer high accuracy and performance in a compact package, making it suitable for a wide range of applications. The AD621BRZ-R7 is part of the AD621 series, known for its unique combination of high performance, small size, and low power consumption, outperforming discrete in-amp implementations.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | ±2.3V to ±18V | V |
| Input Bias Current | 500 pA | pA |
| Input Voltage Noise | 9 nV/√Hz @ 1 kHz | nV/√Hz |
| Bandwidth | 800 kHz (G = 10), 200 kHz (G = 100) | kHz |
| Settling Time | 12 μs to 0.01% | μs |
| Gain Error | 0.15% (VOUT = ±10 V) | % |
| Nonlinearity | 2 ppm of FS (VOUT = –10 V to +10 V, RL = 2 kΩ) | ppm of FS |
| Offset Voltage | 75 μV to 250 μV (RTI, VS = ±15 V) | μV |
| Package | 8-SOIC (0.154, 3.90mm Width) | |
| Quiescent Current | 18 mA per Channel | mA |
Key Features
- Low drift and low power consumption, making it ideal for battery-powered and portable equipment.
- High accuracy with low gain errors and nonlinearity.
- Excellent noise performance with 9 nV/√Hz input voltage noise at 1 kHz.
- Fast settling time of 12 μs to 0.01%.
- Compact 8-SOIC package.
- Wide supply voltage range of ±2.3V to ±18V.
Applications
- Weigh scales and transducer interfaces.
- Data acquisition systems.
- Industrial process controls.
- Battery-powered and portable equipment.
Q & A
- What is the supply voltage range of the AD621BRZ-R7?
The supply voltage range is ±2.3V to ±18V. - What is the input bias current of the AD621BRZ-R7?
The input bias current is 500 pA. - What is the bandwidth of the AD621BRZ-R7 at a gain of 10?
The bandwidth is 800 kHz at a gain of 10. - What is the settling time of the AD621BRZ-R7 to 0.01%?
The settling time is 12 μs to 0.01%. - What is the package type of the AD621BRZ-R7?
The package type is 8-SOIC (0.154, 3.90mm Width). - What are some common applications of the AD621BRZ-R7?
Common applications include weigh scales, transducer interfaces, data acquisition systems, industrial process controls, and battery-powered equipment. - What is the quiescent current per channel of the AD621BRZ-R7?
The quiescent current per channel is 18 mA. - How does the AD621BRZ-R7 perform in terms of noise?
The AD621BRZ-R7 has excellent noise performance with 9 nV/√Hz input voltage noise at 1 kHz. - What is the gain error of the AD621BRZ-R7?
The gain error is 0.15% (VOUT = ±10 V). - Is the AD621BRZ-R7 suitable for high-speed applications?
Yes, it is suitable for high-speed applications with a bandwidth of 800 kHz at a gain of 10 and a settling time of 12 μs to 0.01%.
