Overview
The AD621BR-REEL is a low-drift, low-power instrumentation amplifier produced by Analog Devices Inc. This component is designed for high accuracy and is suitable for a wide range of applications. It features a simple and cost-effective design, making it an ideal choice for various industrial, medical, and automotive applications. The AD621 is preset to a gain of 10 but can be easily configured to a gain of 100 with a single external jumper.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Gain Error (VOUT = ±10 V) | 0.15 | 0.05 | 0.15 | % |
| Nonlinearity (VOUT = –10 V to +10 V, RL = 2 kΩ) | 2 | 10 | 2 | ppm of FS |
| Gain vs. Temperature | -1.5 | ±5 | -1.5 | ppm/°C |
| Voltage Offset (RTI) at VS = ±15 V | 35 | 125 | 35 | µV |
| Average TC of Offset Voltage | 0.3 | 1.0 | 0.3 | µV/°C |
| Power Supply Range | ±2.3 | ±18 | V | |
| Quiescent Current | 0.9 | 1.3 | 0.9 | mA |
| Operating Temperature Range | -40 | 85 | °C | |
| Slew Rate | 1.2 | V/µs | ||
| Input Bias Current | 500 | pA | ||
| Output Current per Channel | 18 | mA | ||
| Package Type | 8-SOIC |
Key Features
- Low drift and low power consumption, making it suitable for battery-powered devices.
- High accuracy with low gain error and nonlinearity.
- Wide operating temperature range from -40°C to +85°C.
- High slew rate of 1.2 V/µs and a bandwidth of 800 kHz.
- Low input bias current of 500 pA, thanks to Superβeta processing.
- Easy gain selection with a single external jumper for gains of 10 or 100.
- Lead-free and RoHS compliant.
Applications
- Industrial automation and control systems.
- Medical devices, such as ECG and EEG systems.
- Automotive systems, including sensor signal conditioning.
- Test and measurement equipment.
- Data acquisition systems.
Q & A
- What is the default gain of the AD621BR-REEL?
The default gain of the AD621BR-REEL is 10, but it can be set to 100 with an external jumper.
- What is the operating temperature range of the AD621BR-REEL?
The operating temperature range is from -40°C to +85°C.
- What is the power supply range for the AD621BR-REEL?
The power supply range is from ±2.3 V to ±18 V.
- What is the slew rate of the AD621BR-REEL?
The slew rate is 1.2 V/µs.
- Is the AD621BR-REEL lead-free and RoHS compliant?
- What is the input bias current of the AD621BR-REEL?
The input bias current is 500 pA.
- What is the bandwidth of the AD621BR-REEL?
The bandwidth is 800 kHz.
- How do you change the gain of the AD621BR-REEL?
The gain can be changed from 10 to 100 by adding a single external jumper between Pins 1 and 8.
- What is the typical quiescent current of the AD621BR-REEL?
The typical quiescent current is 0.9 mA to 1.3 mA.
- What is the output current per channel of the AD621BR-REEL?
The output current per channel is 18 mA.
