Overview
The AD823AN, produced by Analog Devices Inc., is a dual precision, 16 MHz JFET input operational amplifier. This device is designed for high-performance applications requiring low noise, low distortion, and high bandwidth. It operates from a single supply of 3.0 V to 36 V or from dual supplies of 1.5 V to 18 V, making it versatile for various system configurations. The AD823AN features rail-to-rail output swing and an input voltage range that extends below ground, enhancing its usability in a wide range of analog circuits.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage Range | 3 | - | 36 | V |
| Quiescent Current per Amplifier | - | 2.6 | - | mA |
| -3 dB Bandwidth (G = +1) | 12 | 15 | - | MHz |
| Slew Rate (G = -1, VO = 2 V Step) | 13 | 20 | - | V/µs |
| Input Bias Current | - | - | 25 | pA |
| Offset Voltage | - | - | 800 | µV |
| Offset Voltage Drift | - | - | 2 | µV/°C |
| Output Current | - | - | 15 | mA |
| Capacitive Load Drive (G = +1) | - | - | 500 | pF |
| Power Supply Rejection Ratio (VS = 3.3 V to 15 V) | 70 | 80 | - | dB |
Key Features
- Dual precision, 16 MHz JFET input operational amplifier
- True single supply operation from 3.0 V to 36 V or dual supplies from 1.5 V to 18 V
- Rail-to-rail output swing
- Input voltage range extends below ground
- Low distortion and low noise
- High slew rate of 22 V/µs
- Low input bias currents below 25 pA
- High impedance FET input suitable for minimal loading of high output impedance devices
Applications
- A/D driver in single-supply systems, capable of driving both the analog input and reference input of an ADC
- High-speed signal processing and amplification in various analog circuits
- Audio and video signal amplification requiring low noise and distortion
- Medical and industrial instrumentation where precision and high bandwidth are critical
- General-purpose amplification in systems requiring high accuracy and stability
Q & A
- What is the supply voltage range for the AD823AN?
The AD823AN operates from a single supply of 3.0 V to 36 V or from dual supplies of 1.5 V to 18 V.
- What is the typical quiescent current per amplifier for the AD823AN?
The typical quiescent current per amplifier is 2.6 mA.
- What is the -3 dB bandwidth of the AD823AN?
The -3 dB bandwidth is typically 15 MHz for a gain of +1.
- What is the slew rate of the AD823AN?
The slew rate is typically 22 V/µs for a gain of -1 and an output step of 2 V.
- What is the input bias current of the AD823AN?
The input bias current is below 25 pA.
- Can the AD823AN drive capacitive loads?
Yes, the AD823AN can drive up to 500 pF of direct capacitive load.
- What is the power supply rejection ratio (PSRR) of the AD823AN?
The PSRR is typically between 70 dB to 80 dB for supply voltages from 3.3 V to 15 V.
- Is the AD823AN suitable for A/D driver applications?
Yes, the AD823AN is well-suited for driving both the analog input and reference input of an ADC in single-supply systems.
- What are the key advantages of the AD823AN's FET input?
The FET input provides high impedance, making it suitable for minimal loading of high output impedance devices).
- What are some common applications of the AD823AN?
Common applications include A/D drivers, high-speed signal processing, audio and video signal amplification, medical and industrial instrumentation, and general-purpose amplification).
