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AD8641AKSZ-REEL7
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Product Detailed Parameters
- Description：IC OPAMP JFET 1 CIRCUIT SC70-5
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Amplifier Type：J-FET
- Number of Circuits：1
- Output Type：Rail-to-Rail
- Slew Rate：3V/µs
- Gain Bandwidth Product：3.5 MHz
- Current - Input Bias：0.25 pA
- Voltage - Input Offset：70 µV
- Current - Supply：200µA
- Current - Output / Channel：12 mA
- Voltage - Supply Span (Min)：5 V
- Voltage - Supply Span (Max)：26 V
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：5-TSSOP, SC-70-5, SOT-353
- Supplier Device Package：SC-70-5
- -3db Bandwidth：-
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Overview
The AD8641AKSZ-REEL7 is a low power, precision JFET input operational amplifier featuring rail-to-rail output. It operates from single supplies of 5 V to 26 V or dual supplies of ±2.5 V to ±13 V. Key electrical characteristics include a maximum supply current of 250 μA, an extremely low input bias current of 1 pA (max), and a maximum offset voltage of 750 μV. The device offers a gain bandwidth product of 3 MHz and a slew rate of 2 V/μs at 5 V. It is unity-gain stable with no phase reversal and remains stable with capacitive loads exceeding 500 pF.
Feature Summary
- Extremely low input bias current for high impedance signal buffering
- Rail-to-rail output capability in single-supply systems
- Low quiescent current consumption suitable for battery-powered designs
- Stable operation with large capacitive loads
Applications
- Photodiode amplifiers
- Precision current sensing
- Line- or battery-powered instruments
- Medical instrumentation
- Portable audio equipment
Procurement Notes
Verify the package type matches the design requirements, as this specific part number corresponds to the 5-lead SC70 package. Confirm RoHS compliance status if required by manufacturing standards. Ensure the operating temperature range aligns with the specified industrial limits. Check for any specific handling precautions related to the JFET input stage during assembly.
Selection Notes
Select this component when low power consumption and high input impedance are critical. The rail-to-rail output allows for maximum dynamic range in single-supply applications. Consider the 5-lead SC70 package for space-constrained designs. Evaluate the noise performance and offset voltage specifications against the application's precision requirements.
Part Context
This device belongs to the AD8641/AD8642/AD8643 family of low power, precision JFET amplifiers manufactured by Analog Devices. The AD8641 variant provides a single amplifier channel. Other members of the family offer dual or quad configurations in different packages such as SOIC, MSOP, and LFCSP. The family is designed for applications requiring minimal power usage while maintaining high accuracy.
Replacement Considerations
The AD8641AKSZ-R2 is a tape-and-reel alternative within the same package family. For different packaging options, consider the AD8641ARZ (SOIC) or AD8641ARMZ (MSOP). Verify pin compatibility and thermal characteristics when substituting.
