Overview
The AD8617ARZ is a dual, micro-power, rail-to-rail input and output operational amplifier produced by Analog Devices Inc. This device is part of the AD8613/AD8617/AD8619 series, known for its low supply current, low input voltage and current noise, and high performance in low-power applications. The AD8617ARZ is particularly suited for use in portable and loop-powered instrumentation due to its low power consumption and high accuracy.
Key Specifications
| Parameter | Symbol | Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | −0.3 V < VCM < +5.3 V | 0.4 | 2.2 | mV | |
| Input Bias Current | IB | 0.2 | 1 | pA | ||
| Input Offset Current | IOS | 0.1 | 0.5 | pA | ||
| Input Voltage Range | IVR | 0 | 5 | V | ||
| Common-Mode Rejection Ratio | CMRR | 0 V < VCM < 5 V | 95 | dB | ||
| Large Signal Voltage Gain | AVO | RL = 10 kΩ, 0.5 V < VO < 4.5 V | 235 | 500 | ||
| Supply Voltage Range | Vs | 1.8 | 5.5 | V | ||
| Operating Temperature Range | −40 | 125 | °C | |||
| Quiescent Current per Amplifier | Iq/Amp | 38 | 50 | μA | ||
| Slew Rate | 100 | mV/μs | ||||
| Voltage Noise Density | VNoise Density | 22 | nV/√Hz |
Key Features
- Rail-to-Rail Input and Output: The AD8617ARZ can operate with rail-to-rail input and output, enabling it to buffer CMOS ADCs, DACs, ASICs, and other wide output swing devices in low-power, single-supply systems.
- Low Noise and Low Input Bias Current: With a voltage noise density of 22 nV/√Hz and an input bias current of 1 pA maximum, this amplifier is ideal for high-accuracy applications.
- Micropower Consumption: The device has a quiescent current of 38 μA per amplifier, making it suitable for battery-powered and low-power instrumentation.
- High Common-Mode Rejection Ratio (CMRR): The CMRR is 95 dB, ensuring good rejection of common-mode signals.
- Automotive Qualification: The AD8617W version is qualified for automotive applications, available in 8-lead MSOP and 8-lead SOIC packages.
Applications
- Battery-Powered Instrumentation: Ideal for portable and battery-powered devices due to its low power consumption.
- Multipole Filters: Suitable for use in filter circuits requiring low noise and high accuracy.
- Current Shunt Sense: Can be used in current sensing applications where low power and high precision are required.
- Sensors and ADC/DAC Drivers: Useful as predrivers for ADCs and DACs, and as level shifters in various sensor applications.
- Low Power ASIC Input or Output Amplifiers: Suitable for use in low-power ASIC designs where rail-to-rail operation and low noise are essential.
Q & A
- What is the typical quiescent current per amplifier for the AD8617ARZ?
The typical quiescent current per amplifier is 38 μA. - What is the input bias current of the AD8617ARZ?
The input bias current is 1 pA maximum. - What is the voltage noise density of the AD8617ARZ?
The voltage noise density is 22 nV/√Hz. - What is the common-mode rejection ratio (CMRR) of the AD8617ARZ?
The CMRR is 95 dB. - What are the available package options for the AD8617ARZ?
The AD8617ARZ is available in 8-lead MSOP, 8-lead SOIC, and 8-lead LFCSP packages. - Is the AD8617ARZ qualified for automotive applications?
The AD8617W version is qualified for automotive applications. - What is the operating temperature range of the AD8617ARZ?
The operating temperature range is from −40°C to 125°C. - Can the AD8617ARZ operate on a single supply?
Yes, it can operate on a single supply from 1.8 V to 5.5 V. - What is the slew rate of the AD8617ARZ?
The slew rate is 100 mV/μs. - What are some typical applications of the AD8617ARZ?
Typical applications include battery-powered instrumentation, multipole filters, current shunt sense, sensors, and ADC/DAC drivers.
