Overview
The AD822ARZ-REEL7 is a dual precision, low power FET input operational amplifier (op amp) produced by Analog Devices Inc. This component is designed for a wide range of applications requiring high precision and low power consumption. It operates 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 circuit designs. The AD822 is known for its true single-supply capability, allowing it to accommodate input signals below ground in single-supply mode.
Key Specifications
| Parameter | Unit | A Grade | B Grade |
|---|---|---|---|
| Input Voltage Range | V | -0.2 to +4 | -0.2 to +4 |
| Common-Mode Rejection Ratio (CMRR) | dB | 66 to 80 | 66 to 80 |
| Input Impedance (Differential) | Ω||pF | 10^13||0.5 | 10^13||0.5 |
| Input Impedance (Common Mode) | Ω||pF | 10^13||2.8 | 10^13||2.8 |
| Offset Voltage | mV | 0.4 to 2 | 0.3 to 1.5 |
| Offset Voltage Drift | µV/°C | 2 | 2 |
| Input Bias Current | pA | 2 to 25 | 2 to 12 |
| Unity-Gain Bandwidth | MHz | 1.8 | 1.8 |
| Total Harmonic Distortion (THD) at 10 kHz | dB | -93 | -93 |
| Slew Rate | V/µs | 3 | 3 |
| Supply Current per Amplifier | µA | 800 | 800 |
| Operating Temperature Range | °C | -40 to +85 | -40 to +85 |
| Package Type | 8-Lead SOIC | 8-Lead SOIC |
Key Features
- True Single-Supply Capability: The AD822 can operate from a single supply of 5 V to 30 V or from dual supplies of ±2.5 V to ±15 V, allowing it to accommodate input signals below ground in single-supply mode.
- Low Power Consumption: Each amplifier consumes a low supply current of 800 µA.
- High Precision: Features an offset voltage of 0.4 mV to 2 mV and an offset voltage drift of 2 µV/°C.
- Low Input Bias Currents: Input bias currents are below 25 pA, ensuring high dc precision.
- High Bandwidth and Slew Rate: Offers a unity-gain bandwidth of 1.8 MHz and a slew rate of 3 V/µs.
- Low Noise: Exhibits low input voltage noise, making it suitable for noise-sensitive applications.
- High Output Dynamic Range: Output voltage swing extends to within 10 mV of each rail.
Applications
- Instrumentation Amplifiers: Ideal for use in precision instrumentation due to its high accuracy and low noise characteristics.
- Medical Devices: Suitable for medical equipment requiring high precision and reliability.
- Aerospace and Defense: Used in various aerospace and defense applications where high precision and reliability are critical.
- Industrial Automation: Employed in industrial automation systems for precise signal conditioning and amplification.
- Test and Measurement Equipment: Utilized in test and measurement instruments for accurate signal amplification and conditioning.
Q & A
- What is the operating voltage range of the AD822ARZ-REEL7?
The AD822ARZ-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 typical supply current per amplifier for the AD822ARZ-REEL7?
The typical supply current per amplifier is 800 µA.
- What is the unity-gain bandwidth of the AD822ARZ-REEL7?
The unity-gain bandwidth is 1.8 MHz.
- What is the slew rate of the AD822ARZ-REEL7?
The slew rate is 3 V/µs.
- What is the maximum offset voltage of the AD822ARZ-REEL7?
The maximum offset voltage is 2 mV for the A grade and 1.5 mV for the B grade.
- What is the input bias current of the AD822ARZ-REEL7?
The input bias current is below 25 pA.
- What is the common-mode rejection ratio (CMRR) of the AD822ARZ-REEL7?
The CMRR is 66 dB to 80 dB.
- In what package types is the AD822ARZ-REEL7 available?
The AD822ARZ-REEL7 is available in an 8-Lead SOIC package.
- What is the operating temperature range of the AD822ARZ-REEL7?
The operating temperature range is -40°C to +85°C.
- What are some common applications of the AD822ARZ-REEL7?
Common applications include instrumentation amplifiers, medical devices, aerospace and defense, industrial automation, and test and measurement equipment.
