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Contents

README

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LM2907MX-8

Texas Instruments · V/F And F/V Converters · SOIC-8

LM2907MX-8 from Texas Instruments, in a SOIC-8. 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 TACH+ input Positive terminal for the input signal that leads to the noninverting terminal of the internal Schmitt-Trigger comparator.
2 CP1 output Capacitor charged up to VCC/2 by a constant current source of 180 µA typical at the start of every positive half cycle and discharged at the same rate at the beginning of negative half cycles.
3 CP2/IN+ bidirectional Charge pump capacitor node and noninverting input to the high gain op amp; these functions share this pin and are internally connected on 8-pin devices.
4 EMIT output Emitter of the bipolar junction transistor.
5 COL output Collector of the bipolar junction transistor.
6 V+ power_in Supply voltage.
7 IN- input Inverting input to the high gain op amp.
8 TACH-/GND power_in Negative terminal for the input signal to the Schmitt-Trigger comparator; internally connected to ground on 8-pin devices and must be tied to ground externally.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-8
Category Data Acquisition
Pins 8

CAD (KiCad official)

  • Symbol: LM2907MX-8
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: lm2907mx-8-etched.step / lm2907mx-8-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm2907mx-8.step / lm2907mx-8.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (44 pp, sha256 7eb159d92fb097b9, retrieved 2026-09-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF