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AD8668ARZ
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Product Detailed Parameters
- Description：IC OPAMP GP 4 CIRCUIT 14SOIC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- 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 is a quad, low-cost, rail-to-rail output operational amplifier from Analog Devices. It operates on single supplies from 5 V to 16 V or dual supplies of ±2.5 V to ±8 V. The device features a 4 MHz gain bandwidth product and a 3.5 V/µs slew rate. Input characteristics include a maximum offset voltage of 2.5 mV and an input bias current of 1 pA. Noise performance specifies 8 nV/√Hz at 10 kHz. It is housed in a 14-lead SOIC package and functions within an extended temperature range of −40°C to +125°C.
Feature Summary
- Rail-to-rail output capability for maximizing dynamic range
- Low input bias current suitable for high impedance sensors
- Unity-gain stable design without phase reversal
- Extended industrial operating temperature range
Applications
- Sensor amplification
- Photodiode amplification
- ADC driver circuits
- Medical equipment signal conditioning
Procurement Notes
Verify the specific part number suffix against the manufacturer's ordering guide to confirm package type and RoHS compliance status. Ensure the selected variant matches the required automotive qualification if applicable. Confirm lead-free packaging specifications prior to procurement to meet environmental standards.
Selection Notes
Select this component when cost-sensitive applications require JFET-like input bias currents with CMOS power consumption. The wide supply voltage range accommodates various ADC and DAC interfaces. Consider the quad configuration to minimize board space compared to single-channel alternatives.
Part Context
This device belongs to the AD866x family of precision amplifiers designed for general-purpose use. It shares core electrical characteristics with the AD8665 and AD8666 models but provides four independent channels in a single package. The architecture utilizes patented trimming techniques to achieve precision without laser trimming.
Replacement Considerations
The AD8668ARUZ serves as a direct pin-compatible replacement offering the same electrical specifications in a TSSOP-14 package instead of the SOIC-14 form factor.
