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Generated by kicad-footprint-generator · KiCad file format 20260206

Name	Last commit message	Last updated
docs	lf347dr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	3d ago
viewers	lf347dr: viewers · Ray	28d ago
lf347dr-etched.fit.json	lf347dr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	3d ago
lf347dr-etched.glb	lf347dr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	3d ago
lf347dr-etched.step	lf347dr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	3d ago
lf347dr.glb	Publish 0.1.0 · Ray	28d ago
lf347dr.kicad_mod	Publish 0.1.0 · Ray	28d ago
lf347dr.kicad_sym	Publish 0.1.0 · Ray	28d ago
lf347dr.lbr	Publish 0.1.0 · Ray	28d ago
lf347dr.step	Publish 0.1.0 · Ray	28d ago
package.json	Publish 0.1.0 · Ray	28d ago
page.json	Brief states the pinout check that actually ran (was an unconditional "Datasheet-verified pinout") · Ray	12d ago
README.md	lf347dr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray	18d ago

LF347DR

Texas Instruments · FET InputAmplifiers · SOIC-14

LF347DR from Texas Instruments, in a SOIC-14. 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	1OUT	output	Output pin of amplifier 1. Maximum peak output voltage swing ±13.5 V typical into RL = 10 kΩ.
2	1IN-	input	Inverting input pin of amplifier 1. JFET input with typical input bias current of 50 pA and input resistance of 10^12 Ω.
3	1IN+	input	Noninverting input pin of amplifier 1. JFET input with typical input bias current of 50 pA and input resistance of 10^12 Ω.
4	VCC+	power_in	Positive supply voltage. Recommended operating range 3.5 V to 18 V; absolute maximum 18 V. Typical supply current 8 mA.
5	2IN+	input	Noninverting input pin of amplifier 2. JFET input with typical input bias current of 50 pA.
6	2IN-	input	Inverting input pin of amplifier 2. JFET input with typical input bias current of 50 pA.
7	2OUT	output	Output pin of amplifier 2. Maximum peak output voltage swing ±13.5 V typical into RL = 10 kΩ.
8	3OUT	output	Output pin of amplifier 3. Maximum peak output voltage swing ±13.5 V typical into RL = 10 kΩ.
9	3IN-	input	Inverting input pin of amplifier 3. JFET input with typical input bias current of 50 pA.
10	3IN+	input	Noninverting input pin of amplifier 3. JFET input with typical input bias current of 50 pA.
11	VCC-	power_in	Negative supply voltage. Recommended operating range -3.5 V to -18 V; absolute maximum -18 V.
12	4IN+	input	Noninverting input pin of amplifier 4. JFET input with typical input bias current of 50 pA.
13	4IN-	input	Inverting input pin of amplifier 4. JFET input with typical input bias current of 50 pA.
14	4OUT	output	Output pin of amplifier 4. Maximum peak output voltage swing ±13.5 V typical into RL = 10 kΩ.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOIC-14
Category	Op-amp/Cmp
Pins	14

Ordering variants

Same part, different packaging or reel option.

LF347DRD
LF347DRBD
LF347DRN
LF347DRBN

CAD (KiCad official)

Symbol: LF347DR
Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
3D model: SOIC-14 (KiCad packages3D, STEP)
3D model files: lf347dr-etched.step / lf347dr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lf347dr.step / lf347dr.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (22 pp, sha256 2ae820672c857470, 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