LM1458MX 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	OUTPUT A	output	Amplifier A output. Short-circuit protected. Typical output voltage swing ±14 V into R_L = 10 kΩ at V_S = ±15 V.
2	INVERTING INPUT A	input	Amplifier A inverting input (−). Input bias current typ 200 nA, input resistance typ 1 MΩ. Differential input voltage limit ±30 V.
3	NON-INVERTING INPUT A	input	Amplifier A non-inverting input (+). Input voltage range typ ±12 V at V_S = ±15 V. Common-mode rejection ratio typ 90 dB.
4	V-	power_in	Negative supply rail. Absolute maximum supply ±18 V for LM1458. Shared bias network with both amplifiers. Typical total supply current 3 mA at V_S = ±15 V.
5	NON-INVERTING INPUT B	input	Amplifier B non-inverting input (+). Input voltage range typ ±12 V at V_S = ±15 V.
6	INVERTING INPUT B	input	Amplifier B inverting input (−). Input bias current typ 200 nA, input resistance typ 1 MΩ.
7	OUTPUT B	output	Amplifier B output. Short-circuit protected. Typical output voltage swing ±14 V into R_L = 10 kΩ at V_S = ±15 V.
8	V+	power_in	Positive supply rail. Absolute maximum supply ±18 V for LM1458. Shared bias network with both amplifiers. Typical total supply current 3 mA at V_S = ±15 V.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOIC-8
Category	Op-amp/Cmp
Pins	8

Ordering variants

Same part, different packaging or reel option.

LM1458MXM
LM1458MX
LM1458MXM/NOPB
LM1458MX/NOPB
LM1458MXN
LM1458MXN/NOPB
LM1458MXH
LM1458MXH/NOPB

CAD (KiCad official)

Symbol: LM1458MX
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`lm1458mx.step`	122 KB	You want the bare part, or you mark your own boards.
`lm1458mx-etched.step`	1.5 MB	You want the part with `LM1458MX` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 404 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: Texas Instruments datasheet (12 pp, sha256 70a1ab361895298f, 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