Analog Devices Inc. AD706ARZ-REEL

Overview

AD706ARZ-REEL from Analog Devices is a dual, low-power, precision bipolar operational amplifier optimized for low-frequency signal conditioning in high-accuracy systems. It delivers 100 µV max input offset voltage, <200 pA max input bias current at +25°C, 1.5 µV/°C max offset drift, 0.5 µV p-p 0.1 Hz–10 Hz voltage noise, and 750 µA total quiescent supply current - enabling use in 12-bit/14-bit data acquisition, precision integrators, and low-frequency active filters.

For engineers reviewing the AD706ARZ-REEL datasheet, AD706ARZ-REEL pinout, AD706ARZ-REEL application, or AD706ARZ-REEL equivalent, key selection criteria include its picoampere-level input bias current stability over temperature, JFET-like input impedance without JFET's exponential IB drift, absence of balancing resistor requirement, and internal unity-gain compensation in an industry-standard SOIC-8 package.

Technical Context

The AD706ARZ-REEL uses superbeta bipolar input transistors to achieve room-temperature input bias currents comparable to JFET amplifiers (≤200 pA), while limiting IB increase to only ~5× at +125°C - unlike JFETs, which double every 10°C. Its dual-channel architecture features fully independent amplifiers with matched offset voltage (≤250 µV TMIN–TMAX) and input bias current (≤500 pA TMIN–TMAX).

Internally compensated for stable unity-gain operation, it provides 0.8 MHz gain-bandwidth, 0.15 V/µs slew rate, ±13 V output swing into 10 kΩ, and 10,000 pF capacitive load drive capability - supporting robust performance in high-impedance sensor interfaces and multi-stage filter topologies without external compensation.

Key Specifications

Pinout & Package

AD706ARZ-REEL is housed in an 8-lead SOIC_N (R-8) package per JEDEC MS-012-AA, with 1.27 mm lead pitch, 5.00 mm × 4.00 mm body, and gull-wing leads. The package is RoHS-compliant, tape-and-reel formatted per EIA-481A (13-inch reel), and rated for –40°C to +85°C operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with OP2177ARZ and LT1013DN8#PBF, AD706ARZ-REEL uniquely balances picoampere input bias current stability, low 0.1–10 Hz noise, and industrial temperature rating - making it optimal for high-impedance, low-frequency precision circuits where IB drift and 1/f noise dominate error budgets.

Availability

AD706ARZ-REEL is available at Aetrix Electronics and suitable for precision instrumentation, low-frequency active filters, and 12-/14-bit data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for AD706ARZ-REEL 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 design centers worldwide.

The AD706ARZ-REEL belongs to Analog Devices' precision op amp product line, engineered specifically for applications demanding ultra-low input bias current, low 1/f noise, and stable DC performance across industrial temperature ranges - targeting sensor signal chains, analytical instrumentation, and metrology systems.

FAQ

What is the maximum operating temperature range for the AD706ARZ-REEL?

The AD706ARZ-REEL is rated for continuous operation from –40°C to +85°C, meeting industrial temperature requirements. This range is confirmed in the Ordering Guide and Absolute Maximum Ratings table of the Rev. G datasheet, and applies to the SOIC_N (R-8) package variant supplied in tape-and-reel format.

Does the AD706ARZ-REEL require an input balancing resistor?

No, the AD706ARZ-REEL does not require an input balancing resistor due to its ≤200 pA input bias current at +25°C and low drift. The datasheet explicitly states this advantage in the General Description and Figure 8 analysis, confirming stable offset performance even without balancing networks in high-impedance applications.

What is the unity-gain bandwidth and slew rate of the AD706ARZ-REEL?

The AD706ARZ-REEL has a unity-gain crossover frequency of 0.8 MHz and a slew rate of 0.15 V/µs (typical, G = –1). These values are specified in the Rev. G datasheet under FREQUENCY RESPONSE and are guaranteed over the full –40°C to +85°C temperature range.

Can the AD706ARZ-REEL drive large capacitive loads?

Yes, the AD706ARZ-REEL can drive up to 10,000 pF capacitive loads while maintaining stability, as verified in the Output Characteristics section of the Rev. G datasheet. This capability supports direct interfacing with long cables, anti-aliasing filters, or sample-hold capacitors without external isolation resistors.

Is the AD706ARZ-REEL pin-compatible with other dual op amps like the OP27 or LM358?

No, the AD706ARZ-REEL is not pin-compatible with OP27 or LM358. Its SOIC-8 pinout (OUT A, –IN A, +IN A, V–, +IN B, –IN B, OUT B, V+) differs from both the OP27 (8-pin DIP/SOIC with different pin mapping) and LM358 (SOIC-8 with V+, –IN A, +IN A, OUT A, V–, OUT B, –IN B, +IN B). Direct replacement requires PCB layout revision.