HT8722ARZ from HTCSEMI, in a SOP-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 amplifier channel A. Rail-to-rail output; can source/sink about ±30 mA (Vs=3 V) or ±50 mA (Vs=5 V) with closed-loop output impedance ~10-12 Ω at 1 MHz (Av=1).
2	-IN A	input	Inverting input of amplifier channel A. Rail-to-rail CMOS input; input bias current 0.2 pA typ, offset current 0.1 pA typ at 25 °C.
3	+IN A	input	Non-inverting input of amplifier channel A. Rail-to-rail input range (0 V to Vs); differential input voltage rating ±6 V.
4	V-	power_in	Negative supply / ground pin. For single-supply operation tie to GND; total supply voltage V+ to V- must be between 2.7 V and 5.5 V (absolute max 6 V).
5	+IN B	input	Non-inverting input of amplifier channel B. Rail-to-rail input range (0 V to Vs).
6	-IN B	input	Inverting input of amplifier channel B. Rail-to-rail CMOS input with pA-level bias current.
7	OUT B	output	Output of amplifier channel B. Rail-to-rail output capable of driving ±30 mA (3 V) / ±50 mA (5 V) loads.
8	V+	power_in	Positive supply pin. Single-supply operating range 2.7 V to 5.5 V (absolute maximum 6 V). Supply current is ~500 µA per amplifier at Vs=3 V, ~750 µA per amplifier at Vs=5 V.

Key specifications

Parameter	Value
Manufacturer	HTCSEMI
Package	SOP-8
Category	Op-amp/Cmp
Pins	8

Ordering variants

Same part, different packaging or reel option.

HT8722ARZ
HT8722ARZBRZ
HT8722ARZARMZ
HT8722ARZBRMZ
HT8722ARZARDZ
HT8722ARZBRDZ

CAD (KiCad official)

Symbol: HT8722ARZ
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOP-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ht8722arz.step`	122 KB	You want the bare part, or you mark your own boards.
`ht8722arz-etched.step`	1.8 MB	You want the part with `HT8722ARZ` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 452 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: HTCSEMI datasheet (13 pp, sha256 f3e26f623cb62249, 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