Overview
The AD822TRZ-EP-R7 is a dual precision, low power FET input operational amplifier (op amp) produced by Analog Devices Inc. This device is designed to provide precise amplification with minimal noise interference, making it suitable for a variety of precision instrumentation and low-power applications. The AD822TRZ-EP-R7 operates from a single supply of 5 V to 30 V or from dual supplies of ±2.5 V to ±15 V, offering flexibility in circuit design. It 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.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | ±2.5 V (dual), 5 V (single) | - | ±15 V (dual), 30 V (single) | V |
| Quiescent Current | - | 800 µA | - | µA |
| Unity-Gain Bandwidth | - | 1.8 MHz | - | MHz |
| Slew Rate | - | 3 V/µs | - | V/µs |
| Input Offset Voltage | - | 100 µV | 800 µV | µV |
| Input Bias Current | - | 12 pA | 25 pA | pA |
| Common-Mode Rejection Ratio (CMRR) | 66 dB | 80 dB | - | dB |
| Input Voltage Noise Density | - | 13 nV/√Hz at 10 kHz | - | nV/√Hz |
| Output Voltage Swing | - | Within 10 mV of each rail | - | V |
| Operating Temperature Range | -55 °C | - | 125 °C | °C |
| Package Type | - | SOIC-8 | - | - |
Key Features
- Low Power Consumption: The AD822TRZ-EP-R7 has a quiescent current of 800 µA per amplifier, making it suitable for battery-powered applications.
- High Precision: It features a low input offset voltage of up to 800 µV and an offset voltage drift of 2 µV/°C, ensuring high dc precision.
- Wide Supply Voltage Range: Operates from a single supply of 5 V to 30 V or from dual supplies of ±2.5 V to ±15 V.
- True Single-Supply Capability: The input voltage range extends below the negative rail, allowing it to accommodate input signals below ground in single-supply mode.
- Low Noise: Input voltage noise density of 13 nV/√Hz at 10 kHz and a high common-mode rejection ratio (CMRR) of up to 80 dB.
- High Bandwidth and Slew Rate: Unity-gain bandwidth of 1.8 MHz and a slew rate of 3 V/µs.
- Rail-to-Rail Output: Output voltage swing extends to within 10 mV of each rail, providing maximum output dynamic range.
Applications
- Battery-Powered Precision Instrumentation: Ideal for portable and battery-powered precision instrumentation due to its low power consumption.
- Photodiode Preamps: Suitable for photodiode preamplifier circuits requiring low noise and high precision.
- Active Filters: Used in active filter designs where high bandwidth and low distortion are required.
- Medical Instrumentation: Applicable in medical devices that demand high precision and low noise.
- Low Power References and Regulators: Can be used in low power reference and regulator circuits.
- 12-bit to 14-bit Data Acquisition Systems: Suitable for data acquisition systems requiring high precision and low noise.
Q & A
- What is the typical supply voltage range for the AD822TRZ-EP-R7?
The AD822TRZ-EP-R7 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 quiescent current per amplifier for the AD822TRZ-EP-R7?
The quiescent current per amplifier is 800 µA.
- What is the unity-gain bandwidth of the AD822TRZ-EP-R7?
The unity-gain bandwidth is 1.8 MHz.
- What is the slew rate of the AD822TRZ-EP-R7?
The slew rate is 3 V/µs.
- What is the input offset voltage of the AD822TRZ-EP-R7?
The input offset voltage is up to 800 µV.
- What is the common-mode rejection ratio (CMRR) of the AD822TRZ-EP-R7?
The CMRR is up to 80 dB.
- What is the operating temperature range for the AD822TRZ-EP-R7?
The operating temperature range is -55 °C to 125 °C.
- What package type is the AD822TRZ-EP-R7 available in?
The AD822TRZ-EP-R7 is available in an SOIC-8 package.
- What are some typical applications for the AD822TRZ-EP-R7?
Typical applications include battery-powered precision instrumentation, photodiode preamps, active filters, medical instrumentation, and low power references and regulators.
- Does the AD822TRZ-EP-R7 have rail-to-rail output capability?
Yes, the AD822TRZ-EP-R7 has rail-to-rail output capability, with the output voltage swing extending to within 10 mV of each rail.
