Analog Devices Inc. AD708JNZ

Overview

AD708JNZ from Analog Devices is a dual ultralow offset voltage bipolar operational amplifier optimized for precision DC signal conditioning. It delivers 50 μV maximum input offset voltage, 0.3 μV/°C max drift, and 5 V/μV minimum open-loop gain in an 8-lead PDIP package, enabling high-gain instrumentation amplifier designs in commercial-temperature industrial sensors and bridge measurement systems.

For engineers reviewing the AD708JNZ datasheet, AD708JNZ pinout, AD708JNZ application, or AD708JNZ equivalent, this page provides verified specifications, validated pin functions, real-world use cases in precision analog front-ends, and confirmed alternative options with documented parameter trade-offs.

Technical Context

The AD708JNZ integrates two matched bipolar op amps on a single die, with individual and pair-level matching guaranteed across the 0°C to +70°C range. Its architecture achieves <0.35 μV_p-p (0.1–10 Hz) voltage noise and 130 dB minimum CMRR through laser-trimmed input stages and balanced differential pairs.

It operates from ±3 V to ±18 V supplies with 4.5 mA quiescent current per amplifier and supports closed-loop bandwidth up to 0.9 MHz. Input common-mode range extends to ±13 V at ±15 V supply, and output swing reaches ±13.5 V into 10 kΩ load - critical for rail-to-rail insensitive precision gain stages.

Key Specifications

Pinout & Package

AD708JNZ is housed in an 8-lead narrow-body plastic dual in-line package (PDIP, N-8), compliant with RoHS and rated for 0°C to +70°C operation. Thermal resistance is θ_JA = 100°C/W.

Key Features

Applications

Equivalent & Alternatives

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

Compared with OP27GPZ and LT1013DN8#PBF, the AD708JNZ uniquely combines guaranteed 30 μV offset match, 0.3 μV/°C drift match, and 130 dB CMRR match - making it irreplaceable in dual-channel precision instrumentation topologies where channel-to-channel tracking defines system accuracy.

Availability

AD708JNZ is available at Aetrix Electronics and suitable for bridge signal conditioners, precision instrumentation amplifiers, absolute value circuits, and programmable gain amplifiers requiring stable component supply across commercial-temperature industrial deployments.

Supply support for AD708JNZ 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 Wilmington, MA.

The AD708 series belongs to Analog Devices' precision op amp product line, engineered specifically for DC-critical applications demanding ultralow offset, exceptional matching, and long-term stability in sensor signal conditioning and instrumentation front-ends.

FAQ

What is the maximum input offset voltage specification for AD708JNZ?

The AD708JNZ has a guaranteed maximum input offset voltage of 50 μV at 25°C, and 150 μV over its full operating temperature range of 0°C to +70°C. This specification is tested and guaranteed per Analog Devices' Rev. E datasheet, Table 1. The AD708JNZ's low offset enables high-accuracy measurements in applications such as bridge-based sensors and precision absolute value circuits without requiring frequent calibration.

Does AD708JNZ support dual-supply operation, and what are the voltage limits?

Yes, AD708JNZ supports dual-supply operation from ±3 V to ±18 V, with absolute maximum supply ratings of ±22 V. Operation at ±15 V is standard for characterization, delivering ±13.5 V output swing into 10 kΩ loads. The device maintains specified performance across this full range, and its 120 dB minimum PSRR ensures minimal sensitivity to supply ripple - a key requirement in noisy industrial environments where AD708JNZ is commonly deployed.

How does the matching performance of AD708JNZ benefit instrumentation amplifier designs?

The AD708JNZ guarantees 30 μV maximum offset voltage match and 0.3 μV/°C maximum offset voltage drift match between its two amplifiers. In a 3-op-amp instrumentation amplifier, this matching directly determines gain error and temperature-induced drift - enabling 0.1% gain accuracy with ±1% resistors and eliminating the need for manual trimming. This capability is explicitly validated in the AD708 datasheet's "High Precision Programmable Gain Amplifier" section (Figure 29), confirming AD708JNZ's role in reducing bill-of-materials and assembly cost in precision analog systems.

What package type and lead count does AD708JNZ use?

AD708JNZ uses an 8-lead narrow-body plastic dual in-line package (PDIP), designated as N-8 in Analog Devices' ordering guide. It is RoHS-compliant (indicated by the 'Z' suffix) and rated for the commercial temperature range (0°C to +70°C). The package has standard 0.3-inch body width and 0.1-inch lead pitch, with thermal resistance θ_JA = 100°C/W - suitable for through-hole prototyping and legacy industrial PCB assemblies requiring proven reliability.

Can AD708JNZ be used in single-supply configurations?

No, AD708JNZ is not designed for true single-supply operation. Its input common-mode range is specified from ±13 V at ±15 V supplies and does not extend to the negative rail - meaning it cannot accept inputs near ground when operated with only a positive supply. While some limited operation may occur with biased inputs, the datasheet specifies performance exclusively under dual-supply conditions (±3 V to ±18 V), and all key parameters - including offset, CMRR, and output swing - are characterized and guaranteed only in dual-supply mode for AD708JNZ.