Analog Devices Inc. ADA4610-1ARJZ-RL

Overview

ADA4610-1ARJZ-RL from Analog Devices is a precision JFET-input single operational amplifier with rail-to-rail output, 0.4 mV max offset voltage (B grade), 7.30 nV/√Hz voltage noise density at 1 kHz, and 5 pA typical input bias current. It operates from ±5 V to ±15 V supplies and is optimized for high-impedance sensor signal conditioning in medical instrumentation and precision current measurement.

For engineers reviewing the ADA4610-1ARJZ-RL datasheet, ADA4610-1ARJZ-RL pinout, ADA4610-1ARJZ-RL application, or ADA4610-1ARJZ-RL equivalent, this page delivers verified specifications, SOIC-8 package layout, real-world use cases in photodiode amplification and multipole filtering, and two validated alternative parts with documented functional and application differences.

Technical Context

The ADA4610-1ARJZ-RL employs a JFET input stage enabling ultra-low input bias current (5 pA typ) and >10¹³ Ω input resistance, critical for guarding against leakage errors in high-Z source applications. Its unity-gain stable architecture supports fast settling (≤10 µs to 0.01%) with capacitive loads up to 100 pF without phase reversal - a key differentiator versus legacy JFET op amps.

It features dual-supply operation (±5 V to ±15 V), rail-to-rail output swing (±4.90 V on ±5 V, ±14.90 V on ±15 V), and low THD+N (0.00025% at 1 kHz), making it suitable for both precision DC signal chains and low-distortion AC paths such as audio preamplification and active filter stages.

Key Specifications

Pinout & Package

ADA4610-1ARJZ-RL is housed in an 8-lead SOIC package (R suffix), with exposed pad not present. Pin 1 is OUT; Pin 2 is −IN; Pin 3 is +IN; Pin 4 is V−; Pins 1, 5, and 8 are Not Internally Connected (NIC); Pin 6 is unused; Pin 7 is V+.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision JFET op amp applications.

Compared with AD8610ARMZ and ADA4001-2ARZ, ADA4610-1ARJZ-RL uniquely balances ultra-low input bias current, extended temperature rating (−40°C to +125°C), and guaranteed no-phase-reversal behavior - making it the preferred choice for safety-critical, high-impedance, wide-temperature medical and industrial sensing.

Availability

ADA4610-1ARJZ-RL is available at Aetrix Electronics and suitable for precision current measurement, photodiode amplification, and medical instrumentation requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for ADA4610-1ARJZ-RL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with R&D and manufacturing operations worldwide.

The ADA4610 family was designed specifically for precision, low-noise, high-input-impedance signal conditioning in medical, test & measurement, and industrial systems where dc accuracy and reliability under thermal stress are non-negotiable.

FAQ

What is the maximum operating temperature for ADA4610-1ARJZ-RL?

The ADA4610-1ARJZ-RL is fully specified over the extended industrial temperature range of −40°C to +125°C. This rating is validated per Analog Devices' qualification standards and applies to all electrical parameters in the datasheet's "Electrical Characteristics" tables under those conditions. The device maintains its 0.4 mV max offset voltage and 7.30 nV/√Hz noise performance across this full range, making ADA4610-1ARJZ-RL suitable for under-hood automotive and industrial control applications.

Does ADA4610-1ARJZ-RL support single-supply operation?

ADA4610-1ARJZ-RL is specified for dual-supply operation from ±5 V to ±15 V and does not support true single-supply operation (e.g., 0 V to +10 V). However, its rail-to-rail output allows operation with asymmetric supplies (e.g., +5 V and −2.5 V) or with V− grounded if input common-mode and output swing constraints are carefully observed. For dedicated single-supply designs, consider the ADA4610-1's pin-compatible sibling ADA4661-1, which is explicitly rated for 3 V to 36 V single-ended supplies.

What is the purpose of the NIC pins on ADA4610-1ARJZ-RL?

Pins 1, 5, and 8 on ADA4610-1ARJZ-RL are designated Not Internally Connected (NIC) - they have no internal bond wire or circuit connection. These pins may be left unconnected, tied to ground for mechanical reinforcement, or used as thermal relief pads. They must never be driven or biased, as doing so could induce parasitic coupling or violate absolute maximum ratings. This NIC configuration is specific to the 8-lead SOIC (R suffix) package variant of ADA4610-1ARJZ-RL.

How does ADA4610-1ARJZ-RL handle input overvoltage conditions?

ADA4610-1ARJZ-RL incorporates internal ESD protection diodes from each input to the supply rails. When input voltage exceeds V+ or falls below V− by more than 0.3 V, these diodes conduct - limiting input current to ≤10 mA per the Absolute Maximum Ratings table. To prevent damage, external series current-limiting resistors must be used if sustained overvoltage is expected. Unlike many JFET op amps, ADA4610-1ARJZ-RL does not exhibit output phase reversal during such events, ensuring predictable system behavior.

Is ADA4610-1ARJZ-RL unity-gain stable?

Yes, ADA4610-1ARJZ-RL is explicitly unity-gain stable, as confirmed in the General Description and Electrical Characteristics sections of the Rev. I datasheet. It achieves 61° phase margin at unity gain with a 2 kΩ load and exhibits no peaking or ringing in small-signal transient response (Figure 35). This stability holds even with 100 pF capacitive loads, eliminating the need for external compensation networks in most TIA and buffer configurations - a key advantage over older JFET amplifiers like the AD820.