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LM2901Q4T

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by Ray

STMicroelectronics Comparators, QFN-16-EP(3x3). Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentop-amp-cmplm2901q4t
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Contents

README

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LM2901Q4T

STMicroelectronics · Comparators · QFN-16-EP(3x3)

LM2901Q4T from STMicroelectronics, in a QFN-16-EP(3x3). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VCC+ power_in Positive supply rail. Single-supply operation +2 V to +36 V, or dual-supply ±1 V to ±18 V. Typical supply current ~1.1 mA at VCC = +5 V, no load.
2 IN-1 input Inverting input of comparator 1. Differential input range up to VCC+; common-mode range 0 V to (VCC+ - 1.5 V). Typical input bias current 25 nA.
3 NC unconnected No internal connection. Leave floating or tie to a static potential.
4 IN+1 input Non-inverting input of comparator 1. Common-mode input range includes negative rail (0 V to VCC+ - 1.5 V). Typical input offset current ±5 nA.
5 IN-2 input Inverting input of comparator 2. Same electrical characteristics as IN-1.
6 IN+2 input Non-inverting input of comparator 2. Common-mode input range includes negative rail.
7 IN-3 input Inverting input of comparator 3. Same electrical characteristics as IN-1.
8 IN+3 input Non-inverting input of comparator 3. Common-mode input range includes negative rail.
9 IN-4 input Inverting input of comparator 4. Same electrical characteristics as IN-1.
10 NC unconnected No internal connection. Leave floating or tie to a static potential.
11 IN+4 input Non-inverting input of comparator 4. Common-mode input range includes negative rail.
12 VCC- power_in Negative supply rail / ground. Ground in single-supply operation, or negative rail (-1 V to -18 V) in dual-supply operation.
13 OUT4 output Open-collector output of comparator 4. Low-level output voltage typ. 250 mV at Isink = 4 mA (max 400 mV at 25°C). Requires external pull-up resistor to any positive supply up to VCC+.
14 OUT3 output Open-collector output of comparator 3. Same electrical characteristics as OUT4.
15 OUT2 output Open-collector output of comparator 2. Same electrical characteristics as OUT4.
16 OUT1 output Open-collector output of comparator 1. Same electrical characteristics as OUT4.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package QFN-16-EP(3x3)
Category Op-amp/Cmp
Pins 16

Ordering variants

Same part, different packaging or reel option.

  • LM2901Q4T
  • LM2901Q4TN
  • LM2901Q4TD
  • LM2901Q4TDT
  • LM2901Q4TP
  • LM2901Q4TPT

CAD (KiCad official)

  • Symbol: LM2901Q4T
  • Footprint: Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.7x1.7mm
  • 3D model: QFN-16-EP(3x3) (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: STMicroelectronics datasheet (17 pp, sha256 43565e6eb9a8b5be, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF