ADA4099-2BRMZ-RL7

Overview

The ADA4099-2BRMZ-RL7 is a dual-channel, precision operational amplifier manufactured by Analog Devices Inc. It features an Over-The-Top input stage allowing operation from −VS to +VS and beyond, with a common-mode range of −VS − 0.1 V to −VS + 70 V. The device operates on supply voltages between +3.15 V and +50 V, consuming 1.5 mA per channel. Key electrical specifications include a gain-bandwidth product of 8 MHz, a slew rate of 5.5 V/µs, and a maximum input offset voltage of ±40 µV. It offers low noise (7 nV/√Hz at 100 Hz), high CMRR (118 dB minimum), and PSRR (123 dB minimum). The B-grade variant supports a wide operating temperature range of −55°C to +150°C.

Feature Summary

• Over-The-Top input architecture enabling robust signal detection even when biased above the positive supply rail
• Low power shutdown capability reducing quiescent current to 20 µA maximum for system energy management
• High precision DC performance with low input offset voltage and drift ensuring accurate signal conditioning
• Robust input protection tolerating differential overdrive up to 80 V without damage or phase reversal

Applications

• Industrial sensor signal conditioning in harsh environments
• Supply current sensing applications
• Battery and power supply monitoring systems
• Front-end amplifiers in abusive electrical conditions
• 4 mA to 20 mA transmitter circuits

Procurement Notes

Verify the specific ordering suffix BRMZ-RL7 against the manufacturer's official documentation to confirm package type, grade, and reel configuration. Ensure compatibility with required thermal and electrical specifications before integration. Cross-reference the component identifier with authorized distributor catalogs to validate authenticity and traceability. Confirm availability status directly with the supplier as inventory levels fluctuate.

Selection Notes

Select this component for designs requiring high voltage tolerance and precision in single-supply or split-supply configurations. The Over-The-Top feature is critical for ground-sensing or high-side current measurement where inputs exceed the positive rail. Consider the 1.5 mA per channel supply current relative to total system power budgets. Verify that the 8 MHz bandwidth and 5.5 V/µs slew rate meet the dynamic signal requirements of the application.

Part Context

This part belongs to the ADA4099 family of robust, precision operational amplifiers designed for demanding industrial applications. The dual-channel version provides two independent amplifiers in a compact footprint. The series is characterized by its ability to withstand extreme input conditions while maintaining low noise and high accuracy, making it suitable for analog front-ends in challenging electromagnetic and electrical environments.

Replacement Considerations

Consult the official datasheet related products section for verified substitutes. No direct public substitute part numbers are confirmed in the provided source material.