Overview
The AD621BRZ is a low drift, low power instrumentation amplifier produced by Analog Devices Inc. This amplifier is designed for high accuracy and low power consumption, making it suitable for a wide range of applications. It features fixed gains of 10 and 100, which are set via pin strapping, and is known for its excellent AC specifications and low noise performance.
The AD621BRZ is packaged in an 8-lead SOIC (Small Outline Integrated Circuit) package, which is RoHS compliant and lead-free. It operates over a temperature range of -40°C to 85°C, making it versatile for various environmental conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 1 | |
| Gain Set | Pin Strap | |
| Gain (min/max) | 10 / 100 | V/V |
| Input Bias Current (max) | 1 nA | |
| Input Voltage Noise (typ) | 9 nV/√Hz | |
| Supply Current per Amp (max) | 1.3 mA | |
| Operating Temperature Range | -40 to 85 | °C |
| Vos TC (max) | 1.5 µV/°C | |
| Vos (max) | 125 µV | |
| Vs Span (min/max) | 4.6 / 36 | V |
| Bandwidth (typ) at G=10 | 800 kHz | |
| Package | 8-Lead SOIC | |
| RoHS Status | Compliant |
Key Features
- Low Drift and Low Power: The AD621BRZ is designed with low drift and low power consumption, making it ideal for battery-powered and portable equipment.
- High Accuracy: It offers high accuracy with low gain errors and low total voltage offset.
- Fixed Gains: The amplifier has fixed gains of 10 and 100, set via pin strapping.
- Low Noise: It features low input voltage noise of 9 nV/√Hz at 1 kHz.
- Excellent AC Specifications: The AD621BRZ has a bandwidth of 800 kHz at a gain of 10 and 200 kHz at a gain of 100.
- Compact Package: It is packaged in an 8-lead SOIC, which is RoHS compliant and lead-free.
Applications
- Weigh Scales: Suitable for use in weigh scales due to its high accuracy and low drift.
- Transducer Interface and Data Acquisition Systems: Ideal for interfacing with transducers and in data acquisition systems.
- Industrial Process Controls: Used in industrial process control systems where high accuracy and reliability are crucial.
- Battery-Powered and Portable Equipment: Its low power consumption makes it suitable for battery-powered and portable devices.
Q & A
- What is the AD621BRZ?
The AD621BRZ is a low drift, low power instrumentation amplifier produced by Analog Devices Inc.
- What are the fixed gains of the AD621BRZ?
The AD621BRZ has fixed gains of 10 and 100, set via pin strapping.
- What is the input voltage noise of the AD621BRZ?
The input voltage noise is 9 nV/√Hz at 1 kHz.
- What is the operating temperature range of the AD621BRZ?
The operating temperature range is -40°C to 85°C.
- Is the AD621BRZ RoHS compliant?
- What is the bandwidth of the AD621BRZ at a gain of 10?
The bandwidth is 800 kHz at a gain of 10.
- What are some common applications of the AD621BRZ?
Common applications include weigh scales, transducer interface and data acquisition systems, industrial process controls, and battery-powered and portable equipment.
- What is the supply current per amp for the AD621BRZ?
The supply current per amp is 1.3 mA.
- What is the maximum input bias current of the AD621BRZ?
The maximum input bias current is 1 nA.
- What is the package type of the AD621BRZ?
The AD621BRZ is packaged in an 8-lead SOIC.
