Overview
The AD8666ARMZ-R2 is a high-performance operational amplifier (op-amp) produced by Analog Devices Inc. This device is part of the AD8665/AD8666/AD8668 family, known for its low noise, high bandwidth, and rail-to-rail output. It is designed to operate over a wide range of supply voltages, making it versatile for various applications. The AD8666 is particularly suited for systems requiring low offset voltage, low input bias current, and high dynamic performance.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Offset Voltage (VOS) | VCM = 8 V | 0.6 | 2.5 | 3.0 | mV |
| Offset Voltage Drift (ΔVOS/ΔT) | −40°C < TA < +125°C | 3.0 | 10 | - | μV/°C |
| Input Bias Current (IB) | - | 0.2 | 1 | - | pA |
| Supply Current per Amplifier (ISY) | - | 1.15 | 1.55 | 2.0 | mA |
| Slew Rate (SR) | RL = 2 kΩ | - | 3.5 | - | V/μs |
| Gain Bandwidth Product (GBP) | - | - | 4 | - | MHz |
| Phase Margin (ΦM) | - | - | 73 | - | Degrees |
| Voltage Noise Density (en) | f = 10 kHz | - | 8 | - | nV/√Hz |
| Supply Voltage | - | - | 18 | - | V |
| Operating Temperature Range | - | −40 | - | +125 | °C |
Key Features
- Low Offset Voltage: Maximum offset voltage of 2.5 mV, ensuring high precision in signal processing.
- Low Input Bias Current: Input bias current as low as 1 pA, ideal for high-impedance sources.
- Single-Supply and Dual-Supply Operation: Can operate from 5 V to 16 V single supply or ±2.5 V to ±8 V dual supply.
- Low Noise: Voltage noise density of 8 nV/√Hz at 10 kHz, suitable for noise-sensitive applications.
- High Bandwidth: Gain bandwidth product of 4 MHz, providing wide bandwidth for high-frequency signals.
- Rail-to-Rail Output: Output voltage range extends to the supply rails, maximizing signal swing.
- Automotive Grade: The AD8666W model is qualified for automotive applications, ensuring reliability and quality in harsh environments.
Applications
- Automotive Systems: Suitable for various automotive applications due to its automotive-grade qualification and robust performance.
- Industrial Control Systems: Used in industrial control systems where precision and reliability are crucial.
- Medical Devices: Ideal for medical devices requiring low noise and high precision.
- Aerospace and Defense: Can be used in aerospace and defense applications where high reliability and performance are necessary.
- Audio and Video Equipment: Suitable for audio and video equipment requiring high signal fidelity and low noise.
Q & A
- What is the maximum offset voltage of the AD8666?
The maximum offset voltage of the AD8666 is 2.5 mV.
- What is the input bias current of the AD8666?
The input bias current of the AD8666 is as low as 1 pA.
- What is the supply voltage range for the AD8666?
The AD8666 can operate from 5 V to 16 V single supply or ±2.5 V to ±8 V dual supply.
- What is the gain bandwidth product of the AD8666?
The gain bandwidth product of the AD8666 is 4 MHz.
- Is the AD8666 suitable for automotive applications?
Yes, the AD8666W model is qualified for automotive applications.
- What is the voltage noise density of the AD8666 at 10 kHz?
The voltage noise density of the AD8666 at 10 kHz is 8 nV/√Hz.
- What is the operating temperature range of the AD8666?
The operating temperature range of the AD8666 is −40°C to +125°C.
- Does the AD8666 have rail-to-rail output capability?
Yes, the AD8666 has rail-to-rail output capability.
- What is the slew rate of the AD8666?
The slew rate of the AD8666 is 3.5 V/μs.
- What is the phase margin of the AD8666?
The phase margin of the AD8666 is 73 degrees.
