ADA4610-1BRZ-R7

Overview

The ADA4610-1BRZ-R7 is a single-channel, low noise, precision JFET operational amplifier with rail-to-rail output. It features B-grade offset voltage of 0.4 mV maximum and drift of 2 µV/°C maximum. Key electrical parameters include a gain bandwidth product of 16.3 MHz, slew rate of 61 V/µs, input bias current of 5 pA typical, and voltage noise density of 7.3 nV/√Hz at 1 kHz. It operates on dual supplies from ±5 V to ±15 V, draws 1.6 mA supply current per amplifier, and functions within an extended industrial temperature range of -40°C to +125°C.

Feature Summary

• B-grade precision specifications including ultra-low offset voltage and drift for high accuracy applications
• Rail-to-rail output capability combined with fast settling time under substantial capacitive loads
• JFET input architecture providing very low input bias current and low voltage noise
• No phase reversal when input voltages exceed the common-mode voltage range

Applications

• Medical instruments
• Precision current measurement
• Photodiode amplifiers
• Multipole filters

Procurement Notes

Verify the specific B-grade performance characteristics against standard A-grade variants. Confirm the R7 suffix indicates tape and reel packaging suitable for automated assembly. Ensure the SOIC package thermal resistance meets system requirements for the intended operating environment.

Selection Notes

Select this component for applications requiring high DC precision and low noise in a single-channel configuration. The B-grade offset specifications are critical for instrumentation where minimal calibration is desired. Consider the rail-to-rail output swing if interfacing with single-supply ADCs or downstream stages.

Part Context

This device belongs to the ADA4610 family of precision JFET amplifiers, which also includes dual (ADA4610-2) and quad (ADA4610-4) channel versions. The family shares core architectural benefits such as low noise, low bias current, and stability with capacitive loads, offering scalable channel counts for multi-channel signal processing systems.

Replacement Considerations

Public confirmed substitute part numbers: AD820, AD8610.