Overview
The AD8021ARM-REEL7, produced by Analog Devices Inc., is an exceptionally high-performance, high-speed voltage feedback amplifier. It is designed for use in 16-bit resolution systems and is fabricated on Analog Devices' proprietary High Voltage eXtra-Fast Complementary Bipolar (XFCB) process. This amplifier is notable for its low noise and high speed, making it ideal for a wide range of applications requiring precise signal processing.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Supply Voltage Range | ±2.25 V to ±12 V, 5 V single supply | |
| Quiescent Supply Current | 7 mA @ ±5 V, 1.3 mA with output disable | |
| Input Noise Voltage | 2.1 nV/√Hz typical | |
| Input Noise Current | 2.1 pA/√Hz typical | |
| Gain Bandwidth Product | Adjustable with compensation capacitor | |
| Slew Rate | 120 V/μs | |
| Input Offset Voltage (Vos) | 400 μV | |
| Power Supply Rejection Ratio (PSRR) | 74 dB | |
| Common Mode Rejection Ratio (CMRR) | 98 dB | |
| Operating Temperature Range | -40°C to +85°C | |
| Package | 8-lead SOIC, 8-lead MSOP |
Key Features
- Low noise and high speed, making it suitable for 16-bit resolution systems.
- Adjustable gain bandwidth product with a single capacitor.
- Fast settling time of 23 ns to 0.01% for a 1 V step and fast overload recovery of 50 ns.
- Low input offset voltage drift and input bias current drift.
- Capable of driving a 75 Ω line with ±3 V video signals.
- Output disable pin to reduce quiescent supply current.
- Stable over temperature with low noise and high stability.
- Suitable as a buffer/driver for high-resolution ADCs and differential drivers.
Applications
- High-speed, low-power instruments.
- Signal processing chains and control loops.
- Buffer/driver for high-resolution ADCs.
- Differential drivers for balanced lines and other applications requiring differential drive.
- Video and audio signal processing.
Q & A
- What is the typical input noise voltage of the AD8021ARM-REEL7?
The typical input noise voltage is 2.1 nV/√Hz.
- What is the quiescent supply current of the AD8021ARM-REEL7?
The quiescent supply current is 7 mA at ±5 V, and it can be reduced to 1.3 mA with the output disable pin.
- What is the gain bandwidth product of the AD8021ARM-REEL7?
The gain bandwidth product is adjustable with a compensation capacitor.
- What is the slew rate of the AD8021ARM-REEL7?
The slew rate is 120 V/μs.
- What is the input offset voltage (Vos) of the AD8021ARM-REEL7?
The input offset voltage (Vos) is 400 μV.
- What is the power supply rejection ratio (PSRR) of the AD8021ARM-REEL7?
The power supply rejection ratio (PSRR) is 74 dB.
- What is the common mode rejection ratio (CMRR) of the AD8021ARM-REEL7?
The common mode rejection ratio (CMRR) is 98 dB.
- What are the typical operating temperature ranges for the AD8021ARM-REEL7?
The operating temperature range is -40°C to +85°C.
- In what packages is the AD8021ARM-REEL7 available?
The AD8021ARM-REEL7 is available in 8-lead SOIC and 8-lead MSOP packages.
- What are some common applications of the AD8021ARM-REEL7?
Common applications include high-speed, low-power instruments, signal processing chains, control loops, and as a buffer/driver for high-resolution ADCs and differential drivers.
