LM833MX 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	OUT A	output	Output of op-amp channel A. Low-impedance audio output capable of driving typical audio loads.
2	IN A-	input	Inverting input of op-amp channel A. High-impedance differential input.
3	IN A+	input	Non-inverting input of op-amp channel A. High-impedance differential input.
4	V-	power_in	Negative supply rail. Typically -5 V to -18 V for dual-supply operation, or GND for single-supply operation.
5	IN B+	input	Non-inverting input of op-amp channel B. High-impedance differential input.
6	IN B-	input	Inverting input of op-amp channel B. High-impedance differential input.
7	OUT B	output	Output of op-amp channel B. Low-impedance audio output capable of driving typical audio loads.
8	V+	power_in	Positive supply rail. Typically +5 V to +18 V for dual-supply operation, or up to +36 V for single-supply operation.

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.

LM833MX
LM833MXM
LM833MXN

CAD (KiCad official)

Symbol: LM833MX
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Texas Instruments datasheet (27 pp, sha256 761f589c3a22a683, 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