LMP7721MAX 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	IN+	input	Non-inverting analog input to the precision amplifier. Input common-mode range −0.3 V to 1.5 V (at V+ = 2.5 V). Ultra-low input bias current (typ 3 fA).
2	N/C	unconnected	No internal connection. Recommended to connect to the system guard trace surrounding the input pins to minimize PCB leakage currents.
3	V-	power_in	Negative power supply pin. Typically ground in single-supply operation; may be a negative rail in split-supply operation. Supply voltage V+ − V− = 1.8 V to 5.5 V.
4	VOUT	output	Amplifier output. Rail-to-rail output swing (within ~25 mV of V+ and ~30 mV of V− with 2 kΩ load). Short-circuit sourcing ~46 mA, sinking ~15 mA.
5	N/C	unconnected	No internal connection. Isolates the amplifier input pins from the output/supply pins to reduce PCB leakage.
6	V+	power_in	Positive power supply pin. Supply voltage V+ − V− = 1.8 V to 5.5 V (2.0 V to 5.5 V over full −40°C to 125°C). Typical supply current 1.3 mA.
7	N/C	unconnected	No internal connection. Recommended to connect to the system guard trace surrounding the input pins to minimize PCB leakage currents.
8	IN-	input	Inverting analog input to the precision amplifier. Input common-mode range −0.3 V to 1.5 V (at V+ = 2.5 V). Ultra-low input bias current (typ 3 fA).

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.

LMP7721MAX

CAD (KiCad official)

Symbol: LMP7721MAX
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 (34 pp, sha256 9bd4a764063b66e8, 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