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HT2771BRTZ

Public Made by Adom

by adom

HTCSEMI Precision Op Amps, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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HT2771BRTZ

HTCSEMI · Precision Op Amps · SOT-23-5

HT2771BRTZ from HTCSEMI, in a SOT-23-5. 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 INP input Non-inverting input of the op amp, rail-to-rail with input voltage range 0 V to VS and absolute maximum input voltage GND to VS.
2 GND power_in Ground (negative supply) pin of the single-supply amplifier.
3 INN input Inverting input of the op amp, rail-to-rail with input voltage range 0 V to VS and differential input voltage limited to ±6 V.
4 OUT output Rail-to-rail amplifier output, specified for ±30 mA output current at VS = 3 V and ±50 mA at VS = 5 V.
5 VDD power_in Positive supply pin, operating range 2.7 V to 5.5 V with 6 V absolute maximum.

Key specifications

Parameter Value
Manufacturer HTCSEMI
Package SOT-23-5
Category Amplifiers/Comparators
Pins 5

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Input offset voltage (HT2771) VOS 80 500 µV VS = 3 V; 0 V ≤ VCM ≤ 1.3 V 2
Input offset voltage (HT2771) VOS 700 µV VS = 3 V; 0 V ≤ VCM ≤ 1.3 V; −40°C ≤ TA ≤ +85°C 2
Input offset voltage (HT2771) VOS 1100 µV VS = 3 V; 0 V ≤ VCM ≤ 1.3 V; −40°C ≤ TA ≤ +125°C 2
Input offset voltage (HT2771) VOS 350 750 µV VS = 3 V; 0 V ≤ VCM ≤ 3 V 2
Input offset voltage (HT2771) VOS 1800 µV VS = 3 V; 0 V ≤ VCM ≤ 3 V; −40°C ≤ TA ≤ +85°C 2
Input offset voltage (HT2771) VOS 2100 µV VS = 3 V; 0 V ≤ VCM ≤ 3 V; −40°C ≤ TA ≤ +125°C 2
Input bias current IB 0.2 60 pA VS = 3 V 2
Input bias current IB 25 100 pA VS = 3 V; −40°C ≤ TA ≤ +85°C 2
Input bias current IB 150 1000 pA VS = 3 V; −40°C ≤ TA ≤ +125°C 2
Input offset current IOS 0.1 30 pA VS = 3 V 2
Input offset current IOS 50 pA VS = 3 V; −40°C ≤ TA ≤ +85°C 2
Input offset current IOS 500 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 68 83 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 VS = 3 V 2
Power supply rejection ratio PSRR 67 80 dB VS = 2.7 V to 5.5 V 2
Supply current per amplifier ISY 680 1000 µA VS = 3 V; VO = 0 V 2
Supply current per amplifier ISY 1300 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
Input offset voltage (HT2771) VOS 80 500 µV VS = 5 V; 0 V ≤ VCM ≤ 5 V 3
Input offset voltage (HT2771) VOS 1300 µV VS = 5 V; 0 V ≤ VCM ≤ 5 V; −40°C ≤ TA ≤ +125°C 3
Input bias current IB 0.2 60 pA VS = 5 V 3
Input bias current IB 100 pA VS = 5 V; −40°C ≤ TA ≤ +85°C 3
Input bias current IB 1000 pA VS = 5 V; −40°C ≤ TA ≤ +125°C 3
Input offset current IOS 0.1 30 pA VS = 5 V 3
Input offset current IOS 6 50 pA VS = 5 V; −40°C ≤ TA ≤ +85°C 3
Input offset current IOS 25 500 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 74 89 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 750 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 soldering, 60 s 4
Single-supply operating voltage 2.7 5.5 V single supply (product features) 1

CAD (KiCad official)

  • Symbol: HT2771BRTZ
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: ht2771brtz-etched.step / ht2771brtz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ht2771brtz.step / ht2771brtz.glb are the bare package body.

Provenance

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

  • Datasheet: HTCSEMI datasheet (14 pp, sha256 34159b83b9018736, retrieved 2026-10-18, 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-sonnet-5-5 (text+vision), consensus claude-opus-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