Overview
The AD8666ARZ from Analog Devices Inc. is a high-performance operational amplifier designed for a wide range of applications. It is a single-supply, rail-to-rail output amplifier that features low noise performance, low input bias currents, and a wide signal bandwidth. This amplifier operates over an extended supply voltage range of 5V to 16V for single-supply and ±2.5V to ±8V for dual-supply configurations. The AD8666ARZ is particularly suited for systems using high impedance sensors, such as photo diodes, due to its low input bias current, low noise, and low offset voltage.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Offset Voltage (VOS) | 2.5 mV (max) | mV |
| Input Bias Current (IB) | 1 pA (max) | pA |
| Supply Voltage (Single-Supply) | 5 V to 16 V | V |
| Supply Voltage (Dual-Supply) | ±2.5 V to ±8 V | V |
| Noise Voltage Density | 8 nV/√Hz @ 10 kHz | nV/√Hz |
| Bandwidth | 4 MHz | MHz |
| Slew Rate (SR) | 3.5 V/μs | V/μs |
| Operating Temperature | −40°C to +125°C | °C |
| Package Style | 8-lead SOIC-N |
Key Features
- Low noise performance with 8 nV/√Hz at 10 kHz.
- Low input bias current of 1 pA (max).
- Rail-to-rail output and unity-gain stability.
- Wide operating voltage range: 5 V to 16 V for single-supply and ±2.5 V to ±8 V for dual-supply.
- High slew rate of 3.5 V/μs.
- No popcorn noise, making it suitable for audio and medical applications.
- Lead-free packaging and RoHS compliant.
Applications
- Sensor amplification, particularly for high impedance sensors like photo diodes.
- Reference buffers.
- Medical equipment and physiological measurements.
- Signal filters and conditioning.
- Consumer audio applications.
- Photodiode amplification.
- ADC driver and level shifting circuits.
Q & A
- What is the maximum offset voltage of the AD8666ARZ?
The maximum offset voltage is 2.5 mV.
- What is the input bias current of the AD8666ARZ?
The input bias current is 1 pA (max).
- What is the operating voltage range for the AD8666ARZ?
The operating voltage range is 5 V to 16 V for single-supply and ±2.5 V to ±8 V for dual-supply.
- What is the bandwidth of the AD8666ARZ?
The bandwidth is 4 MHz.
- What is the slew rate of the AD8666ARZ?
The slew rate is 3.5 V/μs.
- What is the operating temperature range of the AD8666ARZ?
The operating temperature range is −40°C to +125°C.
- What type of package does the AD8666ARZ come in?
The AD8666ARZ comes in an 8-lead SOIC-N package.
- Is the AD8666ARZ RoHS compliant?
- What are some common applications of the AD8666ARZ?
- Does the AD8666ARZ have popcorn noise?
