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Product Detailed Parameters
- Description：IC ADC DRIVER 8SOIC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Type：ADC Driver
- Applications：Data Acquisition
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The AD8138ARZ is a low distortion differential amplifier manufactured by Analog Devices Inc. in an 8-lead SOIC package. It features a -3 dB bandwidth of 320 MHz at G = +1 and a slew rate of 1150 V/µs. The device settles to 0.01% in 16 ns with an overdrive recovery time of 4 ns. Input voltage noise is 5 nV/√Hz, and typical offset voltage is 1 mV. Operating supply range spans from +3 V to ±5 V, consuming 90 mW at 5 V.
Feature Summary
- Internal feedback architecture provides balanced output gain and phase matching while suppressing even-order harmonics.
- Adjustable output common-mode voltage via the VOCM pin enables easy level-shifting for single-supply ADC applications.
- External resistors allow for flexible closed-loop gain configuration without compromising signal balance.
Applications
- ADC drivers
- Single-ended-to-differential converters
- IF and baseband gain blocks
- Differential buffers
- Line drivers
Procurement Notes
Verify the component marking against the official datasheet to confirm authenticity. Ensure the package matches the specified 8-lead SOIC form factor. Check for physical damage or bent pins prior to installation. Confirm that the operating temperature range meets the system requirements of -40°C to +85°C.
Selection Notes
Select this component when driving high-performance ADCs requiring low harmonic distortion and wide bandwidth. It is suitable for applications needing single-ended to differential conversion without transformers. Consider the power dissipation limits and thermal resistance values if operating near maximum ratings.
Part Context
This part belongs to the AD8138 family of differential amplifiers designed for signal processing. It utilizes Analog Devices' proprietary XFCB bipolar process to achieve high performance. The series includes variants such as the AD8138AARMZ in MSOP packages, offering flexibility in board space and thermal management.
Replacement Considerations
AD8138AARMZ
FAQ
How does the internal feedback mechanism affect harmonic distortion?
The unique internal feedback feature ensures balanced output gain and phase matching, which effectively suppresses even-order harmonics.
What is the function of the VOCM pin?
The VOCM pin allows the user to adjust the common-mode level of the differential output, facilitating level-shifting for single-supply operation.
