Overview
The AD8668ARUZ is a high-performance operational amplifier from Analog Devices Inc., part of the AD866x family. This single-supply, rail-to-rail output amplifier is designed for applications requiring low noise and wide bandwidth. It operates over a supply voltage range of 5 V to 16 V and is also compatible with dual-supply configurations from ±2.5 V to ±8 V. The AD8668ARUZ is particularly suited for automotive and industrial applications due to its robust specifications and reliability.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | VCM = 8 V | 0.6 | 2.5 | 3.0 | mV |
| 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 | ||
| Peak-to-Peak Noise | en p-p | 0.1 Hz to 10 Hz | 2.5 | μV p-p | ||
| Operating Temperature Range | TA | −40 | +125 | °C |
Key Features
- Low offset voltage: 2.5 mV max
- Low input bias current: 1 pA max
- Single-supply operation: 5 V to 16 V and dual-supply operation: ±2.5 V to ±8 V
- Low noise performance: 8 nV/√Hz at 10 kHz
- Wide bandwidth: 4 MHz
- Rail-to-rail output
- High phase margin: 73 degrees
- Automotive-grade options available
Applications
The AD8668ARUZ is suitable for a variety of applications, including:
- Automotive systems: Due to its automotive-grade options and robust specifications, it is ideal for use in vehicle electronics.
- Industrial control systems: Its low noise and wide bandwidth make it suitable for precision measurement and control applications.
- Medical devices: The low noise and high accuracy of the AD8668ARUZ make it a good choice for medical equipment.
- Audio and video equipment: The rail-to-rail output and low noise characteristics are beneficial in audio and video signal processing.
Q & A
- What is the maximum offset voltage of the AD8668ARUZ?
The maximum offset voltage is 2.5 mV. - What is the input bias current of the AD8668ARUZ?
The input bias current is 1 pA max. - What is the supply voltage range for the AD8668ARUZ?
The supply voltage range is 5 V to 16 V for single-supply and ±2.5 V to ±8 V for dual-supply configurations. - What is the gain bandwidth product of the AD8668ARUZ?
The gain bandwidth product is 4 MHz. - What is the phase margin of the AD8668ARUZ?
The phase margin is 73 degrees. - Is the AD8668ARUZ suitable for automotive applications?
Yes, it is available in automotive-grade options and meets the quality and reliability requirements for automotive use. - What is the operating temperature range of the AD8668ARUZ?
The operating temperature range is −40°C to +125°C. - What is the voltage noise density of the AD8668ARUZ at 10 kHz?
The voltage noise density is 8 nV/√Hz at 10 kHz. - Does the AD8668ARUZ have rail-to-rail output?
Yes, it features rail-to-rail output. - What is the peak-to-peak noise of the AD8668ARUZ from 0.1 Hz to 10 Hz?
The peak-to-peak noise is 2.5 μV p-p from 0.1 Hz to 10 Hz.
