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HT3490EARZ

Public Made by Adom

by adom

HTCSEMI Operational Amplifier, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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HT3490EARZ

HTCSEMI · Operational Amplifier · SOP-8

HT3490EARZ 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 VCC power_in Positive supply, +3.00V < Vcc < +3.60V.
2 R output Receiver output.
3 D input Driver input.
4 GND power_in Ground connection.
5 Y output Non-inverting driver output.
6 Z output Inverting driver output.
7 B input Inverting receiver input.
8 A input Non-inverting receiver input.

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
Differential Output Voltage With Load R=50 (RS-422) 2 Volts With Load; R = 50Ω (RS-422); Figure 1 2
Differential Output Voltage With Load R=27 (RS-485) 1.5 Volts With Load; R = 27Ω (RS-485); Figure 1 2
Change in Magnitude of Driver Differential Output Voltage for Complimentary states 0.2 Volts R = 27Ω or R = 50Ω; Figure 1 2
Driver Common Mode Output Voltage 3 Volts R = 27Ω or R = 50Ω; Figure 1 2
Input High Voltage 2 Volts 2
Input Low Voltage 0.8 Volts 2
Input Current -10 10 µA 2
Driver Short Circuit Current, VOUT = HIGH -250 250 mA -7V ≤ VO ≤ +12V; Figure 8 2
Driver Short Circuit Current, VOUT = LOW -250 250 mA -7V ≤ VO ≤ +12V; Figure 8 2
Driver Input to Output, tPLH 20 40 60 ns R = 27Ω, Figures 2 & 9 2
Driver Input to Output, tPHL 20 40 60 ns R = 27Ω, Figures 2 & 9 2
Driver Rise or Fall Time 5 20 ns From 10%-90%; Figures 3 and 10 2
Differential Input Threshold -0.2 0.2 Volts -7V ≤ VCM ≤ +12V 3
Output Voltage LOW 0.4 Volts IO = +2.5mA, VID = -200mV 3
Input Resistance 12 15 kΩ -7V ≤ VCM ≤ +12V 3
Input Current (A, B) at VIN = 12V 1 mA VIN = 12V 3
Input Current (A, B) at VIN = -7V -0.8 mA VIN = -7V 3
Receiver Input to Output, tPLH 40 70 120 ns Figures 6 and 12 3
Receiver Input to Output, tPHL 40 70 120 ns Figures 6 and 12 3
Supply Voltage VCC 3 3.3 3.6 V 3
Supply Current 1000 2000 µA D = 0V or VCC 3
ESD Protection for D, R, A, B, Y and Z pins -2 2 kV Human Body Model 3
Ambient Operating Temperature TA -40 85 °C TA = -40 to 85C for all packages 1

CAD (KiCad official)

  • Symbol: HT3490EARZ
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: ht3490earz-etched.step / ht3490earz-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ht3490earz.step / ht3490earz.glb are the bare package body.

Provenance

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

  • Datasheet: HTCSEMI datasheet (11 pp, sha256 66afe90a4df032d3, retrieved 2026-10-28, tier: lcsc)
  • 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