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AD8666WARZ-RL
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Product Detailed Parameters
- Description：IC OPAMP GP 2 CIRCUIT 8SOIC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Amplifier Type：General Purpose
- Number of Circuits：2
- Output Type：Rail-to-Rail
- Slew Rate：3.5V/µs
- Gain Bandwidth Product：4 MHz
- Current - Input Bias：0.2 pA
- Voltage - Input Offset：600 µV
- Current - Supply：1.15mA (x2 Channels)
- Current - Output / Channel：140 mA
- Voltage - Supply Span (Min)：5 V
- Voltage - Supply Span (Max)：16 V
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- -3db Bandwidth：-
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Overview
The AD8666WARZ-RL is a dual-channel, precision CMOS operational amplifier from the Analog Devices AD866x family. It features rail-to-rail output capability and operates on supply voltages ranging from 5 V to 16 V (single-supply) or ±2.5 V to ±8 V (dual-supply). The device offers a gain bandwidth product of 4 MHz and a slew rate of 3.5 V/µs. Key electrical specifications include a maximum input offset voltage of 2.5 mV, low input bias current of 1 pA, and low noise density of 8 nV/√Hz at 10 kHz. It is qualified for automotive applications and functions within an extended industrial temperature range of −40°C to +125°C.
Feature Summary
- Rail-to-rail output stage with unity-gain stability
- Low input bias current and low voltage noise characteristics
- Qualified for automotive applications with controlled manufacturing
- Extended operating temperature range suitable for industrial environments
Applications
- Sensor amplification
- Medical equipment and physiological measurements
- Photodiode amplification
- ADC driver circuits
- Signal filters and conditioning
Procurement Notes
Verify that the specific part number suffix matches the required package type and reel configuration. Confirm automotive qualification requirements against the datasheet specifications, as automotive models may differ from commercial variants. Ensure compatibility with the intended supply voltage range and load conditions before finalizing procurement.
Selection Notes
Select this component when high impedance sensing requires minimal input bias current alongside low noise performance. The wide supply voltage range accommodates various system architectures. Consider the AD8661/AD8662/AD8664 families if lower offset voltage is critical, as the AD8666 prioritizes low bias current and noise over ultra-low offset.
Part Context
This component belongs to the AD866x family of single-supply, rail-to-rail output amplifiers designed for cost-sensitive applications typically associated with JFET amplifiers. The 'W' suffix indicates automotive qualification, while 'RZ' denotes RoHS compliance and SOIC_N packaging. The '-RL' suffix specifies the tape and reel packaging format.
Replacement Considerations
For direct functional replacements within the same family, consider the AD8666ARZ or AD8666ARMZ for commercial grade applications. For automotive-grade equivalents in different packages, check the AD8666WARZ-R7 variant.
