GS8554-SR from Gainsil, in a SOP-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	OUTA	output	Amplifier A output. Rail-to-rail CMOS output stage capable of ~65 mA typical output current; short-circuit limit 60 mA.
2	INA-	input	Amplifier A inverting input. Analog input range Vss-0.5 V to VDD+0.5 V (abs max); rail-to-rail input; input bias current ~20 pA typ.
3	INA+	input	Amplifier A non-inverting input. Rail-to-rail input; input bias current ~20 pA typ.
4	VDD	power_in	Positive supply rail. Single-supply operating range +1.8 V to +5.5 V (abs max -0.5 V to +7.5 V with respect to VSS). Bypass locally with a low-ESR ceramic capacitor.
5	INB+	input	Amplifier B non-inverting input. Rail-to-rail input; input bias current ~20 pA typ.
6	INB-	input	Amplifier B inverting input. Rail-to-rail input; input bias current ~20 pA typ.
7	OUTB	output	Amplifier B output. Rail-to-rail CMOS output stage; typ output current 65 mA; short-circuit limit 60 mA.
8	OUTC	output	Amplifier C output. Rail-to-rail CMOS output stage; typ output current 65 mA; short-circuit limit 60 mA.
9	INC-	input	Amplifier C inverting input. Rail-to-rail input; input bias current ~20 pA typ.
10	INC+	input	Amplifier C non-inverting input. Rail-to-rail input; input bias current ~20 pA typ.
11	VSS	power_in	Negative supply / ground. Tied to system ground in single-supply operation, or to the negative rail in split-supply operation. Abs max VDD-VSS = 7.5 V.
12	IND+	input	Amplifier D non-inverting input. Rail-to-rail input; input bias current ~20 pA typ.
13	IND-	input	Amplifier D inverting input. Rail-to-rail input; input bias current ~20 pA typ.
14	OUTD	output	Amplifier D output. Rail-to-rail CMOS output stage; typ output current 65 mA; short-circuit limit 60 mA.

Key specifications

Parameter	Value
Manufacturer	Gainsil
Package	SOP-14
Category	Op-amp/Cmp
Pins	14

Ordering variants

Same part, different packaging or reel option.

GS8554-SR
GS8554-SRTR
GS8554-TR

CAD (KiCad official)

Symbol: GS8554-SR
Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
3D model: SOP-14 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Gainsil datasheet (14 pp, sha256 dc9b0f2b6cedff03, retrieved 2026-08-17, tier: lcsc)
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