ADA4610-1BRZ-RL

Overview

The ADA4610-1BRZ-RL is a single-channel precision JFET operational amplifier manufactured by Analog Devices Inc. It features rail-to-rail output, low offset voltage (B grade: max 0.4 mV), and low input bias current (5 pA typical). The device operates on dual supplies from ±5 V to ±15 V with a supply current of 1.6 mA per amplifier. Key electrical parameters include a gain bandwidth product of 16.3 MHz, a slew rate of 25 V/µs rising and 61 V/µs falling, and a voltage noise density of 7.3 nV/√Hz at 1 kHz. It is housed in an 8-lead SOIC package.

Feature Summary

• Precision JFET architecture providing low input noise and very low input bias current for high impedance sensor applications.
• Rail-to-rail output capability ensures maximum dynamic range without phase reversal when input voltages exceed the common-mode range.
• Excellent DC precision characterized by low offset voltage and drift, suitable for high accuracy measurements.
• Fast settling time and stability under substantial capacitive loads make it ideal for high-performance filtering.

Applications

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

Procurement Notes

Verify the specific B-grade offset voltage specifications against the latest datasheet revision I documentation. Confirm that the 8-lead SOIC package matches the design requirements for thermal resistance and pinout compatibility. Ensure the operating temperature range of -40°C to +125°C aligns with the system environment. Check for any specific handling precautions related to the JFET input structure.

Selection Notes

Select this component for applications requiring high precision and low noise in a single-channel configuration. The B-grade offset voltage specification offers tighter tolerances compared to standard grades. Consider the rail-to-rail output feature if maximizing signal swing is critical. Evaluate the 16.3 MHz gain bandwidth product against the required signal frequency response.

Part Context

The ADA4610-1 is part of the ADA4610 family, which includes dual (ADA4610-2) and quad (ADA4610-4) variants. All members share similar low-noise, precision JFET characteristics and rail-to-rail output capabilities. This family is designed for applications demanding superior accuracy in medical instruments, electronic measurement, and automated test equipment.

Replacement Considerations

Direct substitutes within the same family include the ADA4610-2 and ADA4610-4 for multi-channel needs. Other Analog Devices precision JFET op-amps like the AD8510 or AD8610 series may be considered if pinouts and performance metrics are compatible.

FAQ

Does the ADA4610-1 suffer from output phase reversal?

No, unlike many older JFET amplifiers, the ADA4610-1 does not suffer from output phase reversal when input voltages exceed the maximum common-mode voltage range.

What is the maximum supply voltage for the ADA4610-1?

The absolute maximum supply voltage rating is ±18 V.