Overview
The AD8668ARZ-REEL is a quad operational amplifier produced by Analog Devices Inc. It is part of the AD866x family, known for its single-supply, rail-to-rail output, and low noise performance. This amplifier is designed to operate over a wide supply voltage range and is suitable for various applications requiring high precision and reliability.
Key Specifications
| Parameter | Symbol | 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 |
| Operating Temperature Range | TA | - | -40 | - | 125 | °C |
| Supply Voltage | VDD | - | - | - | 18 | V |
Key Features
- Single-supply operation: 5 V to 16 V and dual-supply operation: ±2.5 V to ±8 V
- Low input bias current: 1 pA max
- Low noise performance: 8 nV/√Hz @ 10 kHz
- Wide bandwidth: 4 MHz and slew rate of 3.5 V/μs
- Rail-to-rail output
- Operating temperature range: −40°C to +125°C
- Quad amplifier configuration
Applications
- Instrumentation and measurement equipment
- Process control systems
- Data acquisition systems
- Industrial and medical electronics
- Automotive applications (for the W-grade models)
Q & A
- What is the maximum offset voltage of the AD8668ARZ-REEL? The maximum offset voltage is 2.5 mV at VCM = 8 V and up to 5.0 mV over the temperature range −40°C to +125°C.
- What is the input bias current of the AD8668ARZ-REEL? The input bias current is 1 pA max.
- What is the supply voltage range for the AD8668ARZ-REEL? The supply voltage range is 5 V to 16 V for single-supply operation and ±2.5 V to ±8 V for dual-supply operation.
- What is the gain bandwidth product of the AD8668ARZ-REEL? The gain bandwidth product is 4 MHz.
- What is the operating temperature range of the AD8668ARZ-REEL? The operating temperature range is −40°C to +125°C.
- Is the AD8668ARZ-REEL suitable for automotive applications? Yes, the W-grade models (e.g., AD8668WARUZ) are qualified for automotive applications.
- What is the package type of the AD8668ARZ-REEL? The package type is SOIC-14.
- What is the noise performance of the AD8668ARZ-REEL? The voltage noise density is 8 nV/√Hz at 10 kHz.
- Does the AD8668ARZ-REEL have rail-to-rail output? Yes, it has rail-to-rail output.
- How many amplifiers are in the AD8668ARZ-REEL? The AD8668ARZ-REEL is a quad operational amplifier.
