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AD8668ARZ-REEL
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Product Detailed Parameters
- Description：IC OPAMP GP 4 CIRCUIT 14SOIC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- Amplifier Type：General Purpose
- Number of Circuits：4
- 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 (x4 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：14-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：14-SOIC
- -3db Bandwidth：-
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Overview
The AD8668ARZ-REEL is a quad, low-cost, low-noise operational amplifier from Analog Devices. It features rail-to-rail output and operates on single supplies of 5 V to 16 V or dual supplies of ±2.5 V to ±8 V. Key electrical parameters include a gain bandwidth product of 4 MHz, a slew rate of 3.5 V/µs, and an input bias current of 1 pA maximum. The device offers a voltage noise density of 8 nV/√Hz at 10 kHz and maintains unity-gain stability.
Feature Summary
- Rail-to-rail output capability for extended dynamic range
- Low input bias current suitable for high impedance sensors
- Unity-gain stable with wide signal bandwidth
- Extended industrial operating temperature range
Applications
- Sensor amplification
- Photodiode amplification
- ADC driver circuits
- Medical equipment signal conditioning
Procurement Notes
Verify the package type matches the specific suffix; ARZ indicates SOIC packaging while ARUZ indicates TSSOP. Confirm RoHS compliance status as indicated by the Z suffix. Ensure the reel quantity aligns with manufacturing requirements. Validate that the automotive qualification (WARZ/WARUZ) is not required if standard commercial specifications are sufficient for the design.
Selection Notes
Select this component when cost-sensitive applications require JFET-like performance without popcorn noise. It is appropriate for systems utilizing high impedance sensors like photodiodes due to low bias current. Consider the quad configuration for space-constrained designs requiring multiple channels. Verify supply voltage compatibility within the 5 V to 16 V single-supply range.
Part Context
This part belongs to the AD866x family of precision amplifiers designed for low noise and low offset applications. It serves as a quad-channel variant within the series, complementing single (AD8665) and dual (AD8666) channel models. The family targets applications needing wide bandwidth and low power consumption in compact surface-mount packages.
Replacement Considerations
Direct functional substitutes within the same family include the AD8666 for dual-channel requirements. Automotive qualified versions are available as AD8668WARZ or AD8668WARUZ. Single-channel equivalents include the AD8665.
