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Analog Devices MAX4490AUK — Logic ICs

MAX4490AUK General Purpose Op-Amp, 10 MHz

MPNMAX4490AUK
End of Life

Maxim Integrated MAX4490AUK, General Purpose Amplifier, 1 Circuit, Push-Pull, Rail-to-Rail, 10V/µs Slew Rate, 10 MHz Gain Bandwidth, 2.7 V to 5.5 V Supply, SOT-23-5, -40°C to 125°C.

$0.73Ref. price · indicative, final on quote
PackagingSC-74A, SOT-753
RoHSRoHS non-compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX4490AUK specifications
ParameterValue
Output typePush-Pull, Rail-to-Rail
MountingSurface Mount
Amplifier typeGeneral Purpose
Voltage - input offset1.5 mV
Voltage - supply span5.5 V
Current - supply800µA
Current - input bias50 pA
Current - output (Channel)50 mA
Operating temperature-40°C ~ 125°C
Gain bandwidth product10 MHz
PackageBulk
Slew rate10V/µs
CaseSC-74A, SOT-753
Number of circuits1

Product details

Single-supply general-purpose op-amp in a SOT-23-5

Supply current is 800 µA per amplifier.

10 MHz GBW and 10V/µs slew — signal fidelity for audio and sensor conditioning

With a 10 MHz gain-bandwidth and 10V/µs slew rate, this op-amp handles signals up to several hundred kilohertz without significant distortion. The 50 pA input bias current suits high-impedance sensor interfaces — photodiodes, piezoelectric transducers, or high-value resistor dividers — where bias current error would otherwise dominate. The 50 mA output drive is enough to directly feed a downstream ADC input or a low-power actuator.

The rail-to-rail output stage maximizes dynamic range at the lower end — critical when the headroom is only a few hundred millivolts. At 800 µA quiescent current, it is efficient enough for battery-powered equipment that is not in continuous deep sleep.

Frequently asked questions

Where can I buy MAX4490AUK and what is the price?

The MAX4490AUK is available to order through independent distribution. Submit a request for a firm quote on your required quantity.

Does MAX4490AUK support rail-to-rail output?

Yes, the output stage is push-pull rail-to-rail, allowing the output voltage to swing within millivolts of both supply rails. This maximizes dynamic range in low-voltage single-supply designs.

What is the difference between MAX4490AUK and MAX4491?

The MAX4491 is the dual-channel version of the same amplifier core. The MAX4490AUK is a single-channel device in a SOT-23-5 package, while the MAX4491 packs two amplifiers in a larger package. Electrical specs (GBW, slew rate, supply range, output drive) are identical per channel.