Overview
The AD8666ARMZ is a high-performance operational amplifier produced by Analog Devices, Inc. It is a single-supply, rail-to-rail output amplifier known for its low noise performance and extended operating range. This amplifier is particularly useful in applications requiring low input bias currents, wide signal bandwidth, and low input voltage and current noise. It is suitable for a variety of applications, including sensor amplification, medical equipment, physiological measurements, and consumer audio.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Offset Voltage | 2.5 mV (max) | mV |
| Input Bias Current | 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 at 10 kHz | nV/√Hz |
| Bandwidth | 4 MHz | MHz |
| Slew Rate | 3.5 V/μs (RL = 2 kΩ) | V/μs |
| Operating Temperature | −40°C to +125°C | °C |
| Package Type | 8-lead MSOP | |
| Output Type | Rail-to-Rail Output |
Key Features
- Low input bias current of 1 pA (max), making it suitable for high impedance sensors.
- Low noise performance with a voltage noise density of 8 nV/√Hz at 10 kHz.
- Wide bandwidth of 4 MHz and a slew rate of 3.5 V/μs (RL = 2 kΩ).
- Rail-to-rail output and unity-gain stability.
- Extended operating range with supply voltages up to 16 V.
- No popcorn noise, which is beneficial for audio and medical applications.
- Lead-free packaging and qualified for automotive applications.
Applications
- Sensor amplification, particularly for high impedance sensors like photo diodes.
- Reference buffers and level shifting circuits.
- Medical equipment and physiological measurements.
- Signal filters and conditioning.
- Consumer audio applications.
- Photodiode amplification and ADC driver circuits.
Q & A
- What is the maximum offset voltage of the AD8666ARMZ?
The maximum offset voltage is 2.5 mV.
- What is the input bias current of the AD8666ARMZ?
The input bias current is 1 pA (max).
- What are the supply voltage ranges for the AD8666ARMZ?
The single-supply range is 5 V to 16 V, and the dual-supply range is ±2.5 V to ±8 V.
- What is the bandwidth of the AD8666ARMZ?
The bandwidth is 4 MHz.
- What is the slew rate of the AD8666ARMZ?
The slew rate is 3.5 V/μs (RL = 2 kΩ).
- What is the operating temperature range of the AD8666ARMZ?
The operating temperature range is −40°C to +125°C.
- What type of packaging does the AD8666ARMZ use?
The packaging type is 8-lead MSOP.
- Is the AD8666ARMZ suitable for high impedance sensors?
Yes, it is suitable due to its low input bias current and low noise performance.
- What are some common applications of the AD8666ARMZ?
Common applications include sensor amplification, medical equipment, physiological measurements, and consumer audio.
- Is the AD8666ARMZ qualified for automotive applications?
Yes, it is qualified for automotive applications.
