Overview
The AD823AR is a 16 MHz, rail-to-rail FET input dual amplifier produced by Analog Devices Inc. This device is designed to offer excellent ac and dc characteristics, making it highly suitable for various applications in the medical field. It features low power consumption, high input impedance, and a shutdown feature, which allows for efficient energy use. The AD823AR operates from a single supply and is available in an 8-pin SOIC N-8 package.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number Of Channels | 2 | - |
| GBP - Gain Bandwidth Product | 10 MHz | - |
| SR - Slew Rate | 25 V/µs | - |
| CMRR - Common Mode Rejection Ratio | 82 dB | - |
| Input Voltage Range - Max | 13.8 V | - |
| Operating Supply Voltage | 3 V to 36 V | - |
| Output Type | Rail-to-Rail | - |
| Power Dissipation | 900 mW | - |
| Input Bias Current | 5 pA | - |
| Input Offset Voltage | 700 µV | - |
| Supply Current | 7 mA | - |
| Output Current per Channel | 17 mA | - |
| Package/Case | SOIC-8 | - |
Key Features
- Single-supply operation from 3 V to 36 V
- Low input bias current
- Wide bandwidth of 16 MHz
- Low input offset voltage of 700 µV
- High common-mode rejection ratio (CMRR) of 82 dB
- Excellent ac and dc characteristics
- High input impedance
- Low power consumption
- Shutdown feature for energy efficiency
Applications
The AD823AR is suitable for various medical devices, including:
- ECG monitoring systems
- Portable ECG measurement devices
- Wearable health and fitness trackers
- Physical rehabilitation equipment
- Biomedical research equipment
- Remote health monitoring systems
- Telemedicine devices
- Cardiac event recorders
- Fetal monitoring devices
Q & A
- What is the operating supply voltage range of the AD823AR?
The AD823AR operates from a single supply of 3 V to 36 V or from dual supplies of ±1.5 V to ±18 V.
- What is the bandwidth of the AD823AR?
The AD823AR has a bandwidth of 16 MHz.
- What is the slew rate of the AD823AR?
The slew rate of the AD823AR is 25 V/µs.
- What is the common-mode rejection ratio (CMRR) of the AD823AR?
The CMRR of the AD823AR is 82 dB.
- What is the input bias current of the AD823AR?
The input bias current of the AD823AR is 5 pA.
- What is the input offset voltage of the AD823AR?
The input offset voltage of the AD823AR is 700 µV.
- What is the package type of the AD823AR?
The AD823AR is available in an 8-pin SOIC N-8 package.
- What are some typical applications of the AD823AR?
The AD823AR is typically used in ECG monitoring systems, portable ECG measurement devices, wearable health and fitness trackers, and other biomedical applications.
- Does the AD823AR have a shutdown feature?
Yes, the AD823AR has a shutdown feature to enable efficient energy use.
- What is the maximum output current per channel of the AD823AR?
The maximum output current per channel of the AD823AR is 17 mA.
- Can the AD823AR drive capacitive loads?
Yes, the AD823AR can drive up to 500 pF of direct capacitive load as a follower.
