AD8209WHRMZ-RL

Instrumentation, Op Amps, Buffer Amps Overview

The AD8209WHRMZ-RL is a single-supply high-voltage precision difference amplifier designed for automotive applications. It features an operating supply voltage range of 4.5 V to 5.5 V and a quiescent current of 1.6 mA. The device provides a system gain of 14 V/V with a minimum common-mode rejection ratio (CMRR) of 80 dB from DC to 10 kHz. It supports an input common-mode voltage range from −2 V to +45 V, with a survival range up to +80 V. The component operates within a temperature range of −40°C to +150°C and utilizes an 8-lead MSOP package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Includes integrated EMI filters for enhanced signal integrity in noisy environments
• Features externally accessible preamplifier output pin for configurable low-pass filtering
• Provides buffered output voltage with high common-mode voltage tolerance
• Qualified per AEC-Q100 specifications for automotive reliability

Instrumentation, Op Amps, Buffer Amps Applications

• High-side current sensing
• Motor controls
• Solenoid controls
• Power management
• Low-side current sensing

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix '-RL' indicates reel packaging when sourcing. Confirm the 'WH' grade designation matches the required +150°C maximum operating temperature for your application environment. Ensure the order quantity aligns with standard reel sizes provided by distributors. Cross-reference the RoHS compliance status if environmental regulations apply to your manufacturing process.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this part when a fixed gain of 14 V/V is sufficient for the differential signal amplification requirements. Consider external resistor networks if gain adjustment or specific filter corner frequencies are needed beyond the default configuration. Evaluate the ±1 mV initial offset voltage against the precision requirements of the target measurement circuit. Verify that the 80 kHz bandwidth meets the dynamic response needs of the application.

Instrumentation, Op Amps, Buffer Amps Part Context

This component belongs to the AD8209 series of high-voltage precision difference amplifiers manufactured by Analog Devices Inc. The series includes variants with different temperature grades and packaging options. The WH grade specifically denotes the extended temperature capability suitable for harsh automotive environments compared to lower-grade commercial versions.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

AD8209WBRMZ

Instrumentation, Op Amps, Buffer Amps FAQ

How can the gain be adjusted?

The gain can be lowered by connecting an external resistor from the A1 output (Pin 3) to ground, or raised by adding a feedback resistor from the buffer output to its noninverting input.

What is the purpose of Pin 3 (A1)?

Pin 3 provides access to the output of the internal preamplifier, allowing users to implement external low-pass filtering or adjust the overall system gain.