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Contents

README

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HT2172ARZ

HTCSEMI · Operational Amplifier · SOP-8

HT2172ARZ from HTCSEMI, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 OUTA output Output of amplifier A, which swings rail-to-rail on a single 2.7 V to 5.5 V supply.
2 INPA input Non-inverting input of amplifier A; the input voltage range is GND to VS per the absolute maximum ratings (absolute maximum input voltage is GND to VS).
3 INNA input Inverting input of amplifier A; the input voltage range is GND to VS per the absolute maximum ratings.
4 GND power_in Ground (negative supply) reference pin for the single-supply operation of the amplifiers.
5 INPB input Non-inverting input of amplifier B; the input voltage range is GND to VS per the absolute maximum ratings.
6 INNB input Inverting input of amplifier B; the input voltage range is GND to VS per the absolute maximum ratings.
7 OUTB output Output of amplifier B, which swings rail-to-rail on a single 2.7 V to 5.5 V supply.
8 VDD power_in Positive supply pin; the datasheet specifies single-supply operation from 2.7 V to 5.5 V, with an absolute maximum supply voltage of 6 V.

Key specifications

Parameter Value
Manufacturer HTCSEMI
Package SOP-8
Category Operational Amplifier/Comparator
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Offset voltage VOS 80 200 µV VS=3 V; 0 V ≤ VCM ≤ 1.3 V; TA=25°C 2
Offset voltage VOS 300 µV VS=3 V; 0 V ≤ VCM ≤ 1.3 V; −40°C ≤ TA ≤ +85°C 2
Offset voltage VOS 500 µV VS=3 V; 0 V ≤ VCM ≤ 1.3 V; −40°C ≤ TA ≤ +125°C 2
Offset voltage VOS 350 750 µV VS=3 V; 0 V ≤ VCM ≤ 3 V; TA=25°C 2
Offset voltage VOS 1800 µV VS=3 V; 0 V ≤ VCM ≤ 3 V; −40°C ≤ TA ≤ +85°C 2
Offset voltage VOS 2100 µV VS=3 V; 0 V ≤ VCM ≤ 3 V; −40°C ≤ TA ≤ +125°C 2
Input bias current IB 0.2 6 pA VS=3 V; TA=25°C 2
Input bias current IB 25 pA VS=3 V; −40°C ≤ TA ≤ +85°C 2
Input bias current IB 150 pA VS=3 V; −40°C ≤ TA ≤ +125°C 2
Input offset current IOS 0.1 3 pA VS=3 V; TA=25°C 2
Input offset current IOS 5 pA VS=3 V; −40°C ≤ TA ≤ +85°C 2
Input offset current IOS 50 pA VS=3 V; −40°C ≤ TA ≤ +125°C 2
Input voltage range 0 3 V VS=3 V 2
Common-mode rejection ratio CMRR 85 100 dB VS=3 V; VCM = 0 V to 3 V 2
Large-signal voltage gain AVO 30 100 V/mV VS=3 V; VO = 0.5 V to 2.5 V, RL = 2 kΩ, VCM = 0 V 2
High output voltage VOH 2.92 2.95 V VS=3 V; IL = 1.0 mA 2
High output voltage VOH 2.88 V VS=3 V; −40°C ≤ TA ≤ +125°C 2
Low output voltage VOL 20 35 mV VS=3 V; IL = 1.0 mA 2
Low output voltage VOL 50 mV VS=3 V; −40°C ≤ TA ≤ +125°C 2
Output current IOUT -30 30 mA 2
Power supply rejection ratio PSRR 67 80 dB VS = 2.7 V to 5.5 V 2
Supply current per amplifier ISY 500 600 µA VS=3 V; VO = 0 V 2
Supply current per amplifier ISY 800 µA VS=3 V; VO = 0 V; −40°C ≤ TA ≤ +125°C 2
Settling time tS 0.5 µs VS=3 V; to 0.01% 2
Offset voltage VOS 80 200 µV VS=5 V; 0 V ≤ VCM ≤ 5 V 3
Offset voltage VOS 300 µV VS=5 V; 0 V ≤ VCM ≤ 5 V; −40°C ≤ TA ≤ +125°C 3
Input bias current IB 0.2 6 pA VS=5 V; TA=25°C 3
Input bias current IB 10 pA VS=5 V; −40°C ≤ TA ≤ +85°C 3
Input bias current IB 100 pA VS=5 V; −40°C ≤ TA ≤ +125°C 3
Input offset current IOS 0.1 3 pA VS=5 V; TA=25°C 3
Input offset current IOS 6 pA VS=5 V; −40°C ≤ TA ≤ +85°C 3
Input offset current IOS 25 pA VS=5 V; −40°C ≤ TA ≤ +125°C 3
Input voltage range 0 5 V VS=5 V 3
Common-mode rejection ratio CMRR 85 100 dB VS=5 V; VCM = 0 V to 5 V 3
Large-signal voltage gain AVO 30 80 V/mV VS=5 V; VO = 0.5 V to 4.5 V, RL = 2 kΩ, VCM = 0 V 3
High output voltage VOH 4.925 4.975 V VS=5 V; IL = 1.0 mA 3
High output voltage VOH 4.7 4.77 V VS=5 V; IL = 10 mA 3
High output voltage VOH 4.6 V VS=5 V; −40°C ≤ TA ≤ +125°C 3
Low output voltage VOL 15 30 mV VS=5 V; IL = 1.0 mA 3
Low output voltage VOL 125 175 mV VS=5 V; IL = 10 mA 3
Low output voltage VOL 250 mV VS=5 V; −40°C ≤ TA ≤ +125°C 3
Output current IOUT -50 50 mA VS=5 V 3
Power supply rejection ratio PSRR 67 80 dB VS = 2.7 V to 5.5 V 3
Supply current per amplifier ISY 500 1200 µA VS=5 V; VO = 0 V 3
Supply current per amplifier ISY 1500 µA VS=5 V; VO = 0 V; −40°C ≤ TA ≤ +125°C 3
Settling time tS 1 µs VS=5 V; to 0.01% 3
Supply voltage 6 V 4
Differential input voltage -6 6 V 4
Storage temperature range -65 150 °C 4
Operating temperature range -40 125 °C 4
Junction temperature range -65 150 °C 4
Lead temperature (soldering) 300 °C 60 s 4
ESD rating 2 kV HBM 4

CAD (KiCad official)

  • Symbol: HT2172ARZ
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: ht2172arz-etched.step / ht2172arz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ht2172arz.step / ht2172arz.glb are the bare package body.

Provenance

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

  • Datasheet: HTCSEMI datasheet (16 pp, sha256 8b476e0b0ea5d6ce, retrieved 2026-10-29, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF