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STMicroelectronics MC33174DT — DC-DC Power Modules
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STMicroelectronics / DC-DC Power Modules

MC33174DT STMicro Quad Op-Amp, 2.1 MHz, 2 V/µs, 14-SOIC

MPN MC33174DT
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STMicroelectronics MC33174DT, General Purpose Amplifier, 4 Circuit, 2.1 MHz Gain Bandwidth, 2 V/µs Slew Rate, 4 V to 44 V Supply, 14-SOIC Package, -40°C to 105°C.

In Stock: 1,145 pcs
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[SPEC] Essential Parameters Snapshot Full Specifications (13)
Package / Case 14-SOIC (0.154", 3.90mm Width)
Supply Voltage 44 V
Output / Current 27 mA

Full Technical Specifications

13 Parameters
MC33174DT specifications
Parameter / AttributeSpecification / Value
MountingSurface Mount
Amplifier typeGeneral Purpose
Voltage - input offset1 mV
Voltage - supply span44 V
Current - supply220µA
Current - input bias100 nA
Current - output (Channel)27 mA
Operating temperature-40°C ~ 105°C
Gain bandwidth product2.1 MHz
PackageTape & Reel (TR); Cut Tape (CT)
Slew rate2V/µs
Case14-SOIC (0.154\", 3.90mm Width)
Number of circuits4
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Technical Details & Description

Quad general-purpose op-amp for industrial signal chains

The STMicroelectronics MC33174DT is a quad-channel general-purpose operational amplifier in a 14-SOIC surface-mount package. The supply range spans 4 V to 44 V, making it equally at home on a 5 V logic rail, a 12 V industrial bus, or a ±15 V analog supply.

The 2 V/µs slew rate supports full-swing output up to roughly 150 kHz, which covers audio-band filtering, actuator drive, and low-speed data acquisition. Above that frequency, expect distortion on large-signal steps — the part is not a high-speed video or RF amplifier.

Frequently asked questions

Is MC33174DT a direct replacement for LM324?

The MC33174DT is a quad general-purpose op-amp with a similar pinout to the industry-standard LM324, but it is not a guaranteed drop-in. Key differences: the MC33174DT operates from 4 V to 44 V (LM324 is typically 3 V to 32 V), has a 2 V/µs slew rate versus the LM324's 0.5 V/µs typical, and draws 220 µA total supply versus roughly 500 µA for the LM324. Verify the pinout against your PCB layout and check the supply voltage and compensation before substituting.

What is the difference between MC33174DT and MC3303DT?

The MC3303DT is a slower sibling: its gain-bandwidth product is 1 MHz and slew rate is 0.5 V/µs, versus 2.1 MHz and 2 V/µs for the MC33174DT. The MC3303DT also draws higher supply current (2.8 mA typical) compared to 220 µA for the MC33174DT. Both are quad general-purpose amplifiers in 14-SOIC with the same -40°C to 105°C range, but the MC33174DT is the lower-power, higher-speed choice for the same footprint.

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