Overview
The AD8021ARZ is a high-performance, low-noise, high-speed operational amplifier produced by Analog Devices Inc. It is designed for use in high-resolution systems, such as 16-bit resolution applications, and is fabricated using Analog Devices' proprietary High Voltage eXtra-Fast Complementary Bipolar (XFCB) process. This amplifier is notable for its low voltage and current noise, making it ideal for high-speed, low-power instruments.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | AD8021ARZ |
| Package | 8-SOIC (0.154, 3.90mm Width) |
| Mounting Type | Surface Mount |
| Number of Channels | 1 |
| Operating Supply Voltage | ±2.25V to ±12V, 5V (single supply) |
| Operating Supply Current | 7.7 mA |
| Output Current | 60 mA |
| Slew Rate | 460 V/μs |
| Amplifier Type | Voltage Feedback |
| Common Mode Rejection Ratio | 98 dB |
| Input Bias Current | 7.5 μA |
| -3dB Bandwidth | 200 MHz |
Key Features
- Low noise: 2.1 nV/√Hz typical voltage noise and 2.1 pA/√Hz typical current noise.
- High speed: 200 MHz bandwidth and 460 V/μs slew rate.
- Low quiescent supply current: 7 mA at ±5 V, with an output disable feature to reduce current to 1.3 mA.
- Wide supply voltage range: ±2.25 V to ±12 V, and single 5 V supply.
- Adjustable compensation: Allows the user to choose the gain bandwidth product with minimal trade-off in bandwidth.
- Fast overload recovery: 50 ns recovery time.
- Stable over temperature: Low input offset voltage drift and input bias current drift.
- Capable of driving a 75 Ω line with ±3 V video signals).
Applications
- High-resolution ADC drivers: Ideal for 16-bit high-resolution ADCs with high sampling rates.
- Differential drivers: Suitable for balanced lines and other applications requiring differential drive).
- High-speed instruments: General-purpose amplifier for various gain configurations and control loops).
- Video and audio processing: Capable of handling high-frequency signals with low distortion).
Q & A
- What is the typical voltage noise of the AD8021ARZ?
2.1 nV/√Hz).
- What is the slew rate of the AD8021ARZ?
460 V/μs).
- What is the quiescent supply current of the AD8021ARZ at ±5 V?
7 mA, with an option to reduce to 1.3 mA using the output disable feature).
- What is the operating supply voltage range of the AD8021ARZ?
±2.25 V to ±12 V, and single 5 V supply).
- Can the AD8021ARZ drive a 75 Ω line?
- What is the typical input bias current of the AD8021ARZ?
7.5 μA).
- What is the -3dB bandwidth of the AD8021ARZ?
200 MHz).
- Is the AD8021ARZ stable over temperature?
- Can the AD8021ARZ be used in differential driver configurations?
- What package types are available for the AD8021ARZ?
8-lead SOIC and MSOP packages).
