LM348DR 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 of op-amp 1. Class-AB output stage, short-circuit protected, typical peak output swing +/-13 V into >=10 kOhm at +/-15 V supplies.
2	1IN-	input	Inverting input of op-amp 1. High-impedance differential input (typ 2.5 MOhm), input bias current 30 nA typ, input offset current 4 nA typ.
3	1IN+	input	Non-inverting input of op-amp 1. Common-mode input range typ +/-12 V at +/-15 V supplies.
4	VCC+	power_in	Positive supply voltage. LM348 absolute max +18 V; recommended operating +4 V to +18 V. Shared by all four amplifiers.
5	2IN+	input	Non-inverting input of op-amp 2. Common-mode input range typ +/-12 V at +/-15 V supplies.
6	2IN-	input	Inverting input of op-amp 2. High-impedance differential input, typ 2.5 MOhm.
7	2OUT	output	Output of op-amp 2. Class-AB output stage, short-circuit protected.
8	3OUT	output	Output of op-amp 3. Class-AB output stage, short-circuit protected.
9	3IN-	input	Inverting input of op-amp 3. High-impedance differential input, typ 2.5 MOhm.
10	3IN+	input	Non-inverting input of op-amp 3. Common-mode input range typ +/-12 V.
11	VCC-	power_in	Negative supply voltage. LM348 absolute max -18 V; recommended operating -4 V to -18 V. Shared by all four amplifiers.
12	4IN+	input	Non-inverting input of op-amp 4. Common-mode input range typ +/-12 V.
13	4IN-	input	Inverting input of op-amp 4. High-impedance differential input, typ 2.5 MOhm.
14	4OUT	output	Output of op-amp 4. Class-AB output stage, short-circuit protected.

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.

LM348DR
LM348DR.A
LM348DRE4
LM348DRG4
LM348N
LM348N.A
LM348NSR
LM348NSR.A
LM348DRLM148J
LM348DRLM148J.A
LM348DRLM148JB
LM348DRLM148JB.A
LM348DRLM148FK
LM348DRLM148FKB

CAD (KiCad official)

Symbol: LM348DR
Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
3D model: SOIC-14 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Texas Instruments datasheet (19 pp, sha256 8d1c3bca373a7c98, 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