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STMicroelectronics TS332IDT — Analog & Data Acquisition

STMicroelectronics TS332IDT General Purpose Comparator

MPNTS332IDT
End of Life

STMicroelectronics TS332IDT, General Purpose comparator, dual elements, open-drain output, 8-SOIC package, 1.6 V to 5 V supply, 720 ns propagation delay, -40°C to 125°C operating temperature.

$1.48Ref. price · indicative, final on quote
STMicroelectronics TS332IDT datasheet (PDF)
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

TS332IDT specifications
ParameterValue
TypeGeneral Purpose
Output typeOpen Drain
MountingSurface Mount
Voltage - input offset5mV @ 5V
Voltage - supply, single (Dual (±))1.6V ~ 5V
Output current93mA @ 5V
Current - quiescent26µA
Current - input bias0.04µA @ 5V
Operating temperature-40°C ~ 125°C
PackageTape & Reel (TR); Cut Tape (CT)
Case8-SOIC (0.154\", 3.90mm Width)
CMRR, PSRR79dB CMRR
Number of elements2
Propagation delay720ns

Product details

The STMicroelectronics TS332IDT is a dual, general-purpose comparator with rail-to-rail inputs and open-drain outputs.

Propagation delay is 720 ns maximum — fast enough for most power-supply sequencing and fault-detection loops, but not for high-speed switching regulators or GHz-class signal recovery. The 79 dB CMRR gives reasonable rejection of common-mode noise on a long sensor cable, though a precision comparator with higher CMRR would be chosen for millivolt-level thresholds. Quiescent current sits at 26 µA maximum, so the part suits always-on sensing in battery-powered nodes without draining the rail. Input offset voltage is 5 mV max at 5 V — acceptable for threshold detection where the trip point has several millivolts of hysteresis margin.

The 8-SOIC footprint is a common industry layout; no board respin needed if you are replacing a generic dual comparator in the same land pattern.

Frequently asked questions

Does TS332IDT have open drain outputs?

Yes, the TS332IDT uses open-drain outputs, allowing wired-OR connections and level shifting to a higher pull-up voltage.

Is TS332IDT a rail-to-rail comparator?

Yes, the TS332IDT features rail-to-rail input capability, allowing the input common-mode range to extend to both supply rails.

TS332IDT vs LM393: which is better?

The TS332IDT operates down to 1.6 V and has rail-to-rail inputs, while the LM393 typically requires a minimum 2 V supply and does not offer rail-to-rail input. The TS332IDT also has a wider -40°C to 125°C temperature range compared to the LM393's commercial 0°C to 70°C range. For low-voltage, extended-temperature designs, the TS332IDT is the better fit.