Overview
The AD822BRZ-REEL is a dual precision, low power FET input operational amplifier produced by Analog Devices Inc. This device is designed to operate from a single supply of 5 V to 30 V or from dual supplies of ±2.5 V to ±15 V, making it versatile for various applications. The AD822 features true single-supply capability with an input voltage range extending below the negative rail, allowing it to accommodate input signals below ground in single-supply mode. It also boasts a rail-to-rail output, providing maximum output dynamic range with an output voltage swing extending to within 10 mV of each rail.
Key Specifications
| Parameter | Unit | Min | Typ | Max |
|---|---|---|---|---|
| Supply Voltage | V | ±2.5 | - | ±15 |
| Input Voltage Range | V | -0.2 | - | +4 |
| Common-Mode Rejection Ratio (CMRR) | dB | 66 | 80 | 80 |
| Input Impedance (Differential) | Ω||pF | 10^13||0.5 | - | 10^13||0.5 |
| Input Bias Current | pA | 2 | 25 | 25 |
| Offset Voltage | mV | 0.4 | 2 | 2 |
| Offset Voltage Drift | µV/°C | 2 | - | 2 |
| Unity-Gain Bandwidth | MHz | - | 1.8 | - |
| Slew Rate | V/µs | - | 3 | - |
| Supply Current per Amplifier | µA | - | 800 | - |
| Operating Temperature Range | °C | -40 | - | 85 |
Key Features
- Low Power Consumption: The AD822 operates with a low supply current of 800 µA per amplifier, making it energy-efficient.
- High Precision: Features an offset voltage of 800 µV maximum and an offset voltage drift of 2 µV/°C, ensuring high dc precision.
- Wide Supply Range: Can operate from a single supply of 5 V to 30 V or from dual supplies of ±2.5 V to ±15 V.
- Rail-to-Rail Output: Provides an output voltage swing extending to within 10 mV of each rail, maximizing output dynamic range.
- Low Input Bias Current: Input bias currents are below 25 pA, suitable for high-impedance sources.
- High Bandwidth and Slew Rate: Offers a unity-gain bandwidth of 1.8 MHz and a slew rate of 3 V/µs.
- Dual Channels: The AD822 is a dual op amp, providing two independent channels per chip.
- Compact Packaging: Available in 8-lead PDIP, MSOP, and SOIC_N packages.
Applications
- Instrumentation Amplifiers: Ideal for use in instrumentation due to its high precision and low noise characteristics.
- Medical Devices: Suitable for medical equipment requiring high accuracy and low power consumption.
- Aerospace and Defense: The AD822 can be used in various military and aerospace applications due to its robust performance over a wide temperature range.
- Industrial Automation: Used in industrial control systems, sensors, and data acquisition systems.
- Audio and Video Equipment: Can be applied in audio and video circuits requiring low noise and high fidelity.
Q & A
- What is the supply voltage range for the AD822BRZ-REEL?
The AD822BRZ-REEL can operate from a single supply of 5 V to 30 V or from dual supplies of ±2.5 V to ±15 V.
- What is the input voltage range for the AD822BRZ-REEL?
The input voltage range extends below the negative rail, allowing input signals below ground in single-supply mode, and up to 4 V above the negative rail.
- What is the typical offset voltage of the AD822BRZ-REEL?
The typical offset voltage is 2 mV, with a maximum of 800 µV.
- What is the slew rate of the AD822BRZ-REEL?
The slew rate is 3 V/µs.
- What is the unity-gain bandwidth of the AD822BRZ-REEL?
The unity-gain bandwidth is 1.8 MHz.
- How many channels does the AD822BRZ-REEL have?
The AD822BRZ-REEL is a dual op amp, providing two independent channels per chip.
- What are the available package types for the AD822BRZ-REEL?
The AD822 is available in 8-lead PDIP, MSOP, and SOIC_N packages.
- What is the operating temperature range for the AD822BRZ-REEL?
The operating temperature range is from -40°C to +85°C.
- What is the typical supply current per amplifier for the AD822BRZ-REEL?
The typical supply current per amplifier is 800 µA.
- Is the AD822BRZ-REEL suitable for high-impedance sources?
Yes, it is suitable due to its low input bias current of below 25 pA.
