Analog Devices Inc. OP492GSZ

Overview

OP492GSZ from Analog Devices is a quad operational amplifier optimized for single-supply operation (4.5 V to 33 V), featuring rail-to-ground output swing, input common-mode range including ground, 4 MHz gain bandwidth, and 3 V/µs slew rate. It serves as a precision signal conditioning IC in battery-powered instrumentation and telecom interface circuits.

For engineers reviewing the OP492GSZ datasheet, OP492GSZ pinout, OP492GSZ application, or OP492GSZ equivalent, key selection criteria include guaranteed −40°C to +125°C operation, low input offset voltage (≤1 mV typ at 25°C), high channel separation (100 dB at 1 kHz), and BiCMOS output stage enabling true ground-swing capability in 5 V systems.

Technical Context

The OP492GSZ employs a PNP input stage enabling input voltage range down to ground, and a BiCMOS output stage allowing output swing to within 20 mV of ground under light load (100 kΩ). Its unity-gain stable architecture delivers 4 MHz bandwidth with 75° phase margin and no phase reversal - even with inputs exceeding V+ by up to 0.6 V.

Specified for both single-supply (4.5 V to 33 V) and dual-supply (±2.25 V to ±15 V) operation, it maintains 100 dB CMRR and PSRR over frequency, supports 100 kΩ minimum load, and achieves 25 V/mV open-loop gain at 25°C with RL = 10 kΩ.

Key Specifications

Pinout & Package

OP492GSZ is housed in a 14-lead narrow-body SOIC (S-suffix) package with standard quad op amp pinout and exposed pad not present. Thermal resistance θJA = 120°C/W confirms suitability for moderate-power analog signal chains without forced airflow.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad operational amplifier applications.

Compared with LM324DR and TLV2464IDR, OP492GSZ uniquely balances 3 V/µs slew rate, guaranteed ground-swing output, 125°C operation, and 4 MHz bandwidth - making it optimal for industrial-grade single-supply signal chains where accuracy, speed, and ruggedness intersect.

Availability

OP492GSZ is available at Aetrix Electronics and suitable for battery-operated instrumentation, telecom line interface modules, and industrial sensor signal conditioning requiring stable component supply across extended temperature ranges.

Supply support for OP492GSZ 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.

The OP492GSZ belongs to Analog Devices' general-purpose precision op amp product line, designed specifically for robust single-supply operation in cost-sensitive yet performance-demanding industrial and communications applications.

FAQ

What is the maximum supply voltage for OP492GSZ?

The absolute maximum supply voltage for OP492GSZ is 33 V, as specified in the Absolute Maximum Ratings table. Operation at 30 V is supported across the full −40°C to +125°C temperature range, with electrical characteristics guaranteed from 4.5 V to 30 V. Exceeding 33 V risks permanent damage per Analog Devices' datasheet Rev. D.

Does OP492GSZ support true rail-to-rail input and output?

OP492GSZ supports rail-to-ground input (common-mode range includes 0 V) and rail-to-ground output (swings to 20 mV above ground with 100 kΩ load), but does not support rail-to-rail output at the positive rail - typical high-level output is 4.3 V at VS = 5 V. Its PNP input stage and BiCMOS output stage enable ground-referenced operation without external level shifters, distinguishing it from generic RRIO op amps.

Can OP492GSZ be used in dual-supply configurations?

Yes, OP492GSZ is fully specified for dual-supply operation from ±2.25 V to ±15 V. The datasheet provides complete electrical characteristics at ±15 V, including ±12.2 V output swing (RL = 2 kΩ), 2.5 mV max input offset, and 100 dB CMRR. Critical design note: V− must be applied before or simultaneously with V+ to prevent input stage damage during power-up sequencing.

What is the thermal resistance (θJA) of OP492GSZ in its SOIC package?

The junction-to-ambient thermal resistance (θJA) of OP492GSZ in the 14-lead narrow-body SOIC package is 120°C/W, as measured under worst-case PCB mounting conditions per Table 4 of the datasheet. This value assumes standard JEDEC 2-layer board layout; actual thermal performance improves with copper pour and thermal vias beneath the package body.

Is OP492GSZ pin-compatible with other quad op amps like LM324?

No, OP492GSZ uses a non-standard 14-pin SOIC pinout distinct from the industry-standard 14-pin DIP/SOIC layout of LM324. Its pin assignments (e.g., +V on Pin 4, −V on Pin 11, OUTD on Pin 14) differ fundamentally - direct replacement requires PCB redesign. Engineers must consult Figure 2 ("14-Lead Narrow-Body SOIC") in the OP292/OP492 Rev. D datasheet for accurate layout verification.