Overview
The AD822AR-REEL7 is a dual precision, low power FET input operational amplifier produced by Analog Devices Inc. This component 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. It features true single-supply capability with an input voltage range that extends below the negative rail, allowing it to accommodate input signals below ground in single-supply mode. The AD822AR-REEL7 is available in an 8-lead SOIC_N package and is rated over the industrial temperature range of −40°C to +85°C.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Package Type | 8-SOIC (0.154, 3.90mm Width) |
| Mounting Type | Surface Mount |
| Number of Pins | 8 |
| Operating Temperature | −40°C to +85°C |
| Supply Voltage | 5 V to 30 V, ±2.5 V to ±15 V |
| Quiescent Current | 800 μA per amplifier |
| Slew Rate | 3 V/μs |
| Unity-Gain Bandwidth | 1.8 MHz |
| Input Bias Current | 25 pA maximum |
| Input Offset Voltage | 800 μV maximum |
| Common Mode Rejection Ratio (CMRR) | 80 dB |
| Output Current | Minimum of 15 mA |
| Capacitive Load Drive | Up to 350 pF |
Key Features
- True Single-Supply Operation: Operates 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: Output voltage swing extends to within 10 mV of each rail.
- Input Voltage Range: Extends below the negative rail, allowing input signals below ground in single-supply mode.
- High Load Drive: Capacitive load drive of up to 350 pF and a minimum output current of 15 mA.
- Excellent AC Performance: Unity-gain bandwidth of 1.8 MHz and a slew rate of 3 V/μs.
- Good DC Performance: Maximum input offset voltage of 800 μV and typical offset voltage drift of 2 μV/°C.
- Low Noise: Input voltage noise density of 13 nV/√Hz at 10 kHz.
- Low Power Consumption: Maximum quiescent current of 800 μA per amplifier.
Applications
- Battery-Powered Precision Instrumentation: Ideal for battery-powered devices due to its low power consumption.
- Photodiode Preamps: Suitable for photodiode applications requiring low noise and high precision.
- Active Filters: Used in active filter circuits due to its excellent AC performance.
- Data Acquisition Systems: Applicable in 12-bit to 14-bit data acquisition systems requiring high precision and low noise.
- Medical Instrumentation: Used in medical devices where precision and reliability are critical.
- Low Power References and Regulators: Suitable for low power reference and regulator circuits.
Q & A
- What is the operating temperature range of the AD822AR-REEL7?
The operating temperature range is −40°C to +85°C.
- What are the supply voltage ranges for the AD822AR-REEL7?
The AD822AR-REEL7 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 maximum quiescent current of the AD822AR-REEL7?
The maximum quiescent current is 800 μA per amplifier.
- What is the slew rate of the AD822AR-REEL7?
The slew rate is 3 V/μs.
- What is the unity-gain bandwidth of the AD822AR-REEL7?
The unity-gain bandwidth is 1.8 MHz.
- What is the maximum input offset voltage of the AD822AR-REEL7?
The maximum input offset voltage is 800 μV.
- What is the common mode rejection ratio (CMRR) of the AD822AR-REEL7?
The CMRR is 80 dB.
- Can the AD822AR-REEL7 drive capacitive loads?
Yes, it can drive up to 350 pF of direct capacitive load.
- What is the minimum output current of the AD822AR-REEL7?
The minimum output current is 15 mA.
- In what package types is the AD822AR-REEL7 available?
The AD822AR-REEL7 is available in an 8-lead SOIC_N package.
