TLV3492AIDR

Texas Instruments

Texas Instruments TLV3492AIDR, dual general-purpose comparator, 1.8V-5.5V supply, 13.5µs propagation delay, 1.2µA quiescent, push-pull rail-to-rail output, 8-SOIC package, -40°C to 125°C.

TLV3492AIDR
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MOQ 1 · Tape & Reel (TR); Cut Tape (CT) · RoHS · EIA-481 · DAP/DDP · T/T

Technical specifications

TLV3492AIDR specifications
Parameter / AttributeSpecification / Value
TypeGeneral Purpose
Output typeCMOS, Push-Pull, Rail-to-Rail
MountingSurface Mount
Voltage - input offset15mV @ 5.5V
Voltage - supply, single (Dual (±))1.8V ~ 5.5V
Current - quiescent1.2µA
Current - input bias10pA @ 5.5V
Operating temperature-40°C ~ 125°C
PackageTape & Reel (TR); Cut Tape (CT)
Case8-SOIC (0.154\", 3.90mm Width)
CMRR, PSRR74dB CMRR, 69.12dB PSRR
Number of elements2
Propagation delay13.5µs

Technical details

Two nanopower comparators in an 8-SOIC — what the 1.2 µA quiescent buys you

The Texas Instruments TLV3492AIDR packs two general-purpose comparators into an 8-SOIC package, each drawing a maximum 1.2 µA quiescent current. The push-pull rail-to-rail output stage eliminates the external pull-up resistor needed on open-drain comparators, saving a component and a PCB trace.

13.5 µs propagation delay — budgeting the signal chain

The 13.5 µs maximum propagation delay sets the comparator's response time from overdrive to output transition. For a window comparator monitoring a 10 kHz signal, that delay eats about 13.5° of phase — acceptable for most threshold alarms but something to model if you're closing a control loop. The 10 pA typical input bias current at 5.5 V means negligible loading on high-impedance sensor outputs, so the divider network or thermistor bridge doesn't need a buffer.

15 mV input offset — the trip-point guard band

Maximum input offset voltage is 15 mV at 5.5 V. When setting a precision threshold — say a 100 mV reference on the non-inverting input — budget at least 15 mV of hysteresis or guard band to avoid chatter at the trip point. The 74 dB CMRR and 69.12 dB PSRR are adequate for supply-rail sensing and general-purpose level detection but don't target the microvolt-resolution comparator class.

TLV3492AIDR
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