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Analog Devices MAX4042ESA+ — Logic ICs

MAX4042ESA+ Dual Op-Amp, 90 kHz GBW, Rail-to-Rail Output

MPNMAX4042ESA+
End of Life

Maxim Integrated MAX4042ESA+, General Purpose Amplifier, 2 Circuit, Rail-to-Rail, 90 kHz Gain Bandwidth, 0.04V/µs Slew Rate, 2.4V to 5.5V Supply, 8-SOIC, -40°C to 85°C.

$3.29Ref. price · indicative, final on quote
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX4042ESA+ specifications
ParameterValue
Output typeRail-to-Rail
MountingSurface Mount
Amplifier typeGeneral Purpose
Voltage - input offset200 µV
Voltage - supply span5.5 V
Current - supply14µA (x2 Channels)
Current - input bias2 nA
Current - output (Channel)2.5 mA
Operating temperature-40°C ~ 85°C
Gain bandwidth product90 kHz
PackageTube
Slew rate0.04V/µs
Case8-SOIC (0.154\", 3.90mm Width)
Number of circuits2

Product details

Each channel draws just 14 µA supply current, making this a natural fit for battery-powered instrumentation, portable sensor interfaces, and always-on monitoring loops that cannot spare a milliwatt.

The gain-bandwidth product of 90 kHz and slew rate of 0.04 V/µs tell you this is a DC-to-slow-signal part. Do not try to push audio or fast sensor edges through it — the bandwidth simply is not there. What it does well is amplify thermocouple outputs, strain-gauge bridge signals, or any low-frequency transducer where the trade-off is supply current versus speed. The 200 µV input offset is decent for a micropower amplifier and will not require a trim pot in most production builds.

Runs on anything from 2.4 V to 5.5 V, so it works straight off a single lithium cell or a regulated 5 V rail. The 8-SOIC footprint is a standard layout; the tube shipment means pick-and-place lines will need to transfer to tape if they are set up for reel feed.

Frequently asked questions

What is the closest pin-compatible alternative to MAX4042ESA+?

Within the same Maxim family, the MAX4042ESA+ is the dual-channel micropower option.