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Contents

README

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OPA177M

HGSEMI · Precision Op Amps · SOP-8

OPA177M from HGSEMI, 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 Offset Trim passive Offset voltage trim terminal; an optional external potentiometer (RP = 20k) between pins 1 and 8 gives about ±3 mV adjustment range.
2 -In input Inverting input, protected by 500Ω series resistor and diode clamps, withstanding ±30V differential input.
3 +In input Non-inverting input, protected by 500Ω series resistor and diode clamps, withstanding ±30V differential input.
4 V- power_in Negative supply; supply voltage absolute maximum is ±22V, and the part is specified at VS = ±15V.
5 NC unconnected No internal connection.
6 VO output Op amp output with continuous short-circuit protection and a swing of ±14V typical at RL≥10kΩ.
7 V+ power_in Positive supply; supply voltage absolute maximum is ±22V, and 0.1µF ceramic decoupling is suggested close to the pin.
8 Offset Trim passive Offset voltage trim terminal; an optional external potentiometer (RP = 20k) between pins 1 and 8 gives about ±3 mV adjustment range.

Key specifications

Parameter Value
Manufacturer HGSEMI
Package SOP-8
Category Amplifiers/Comparators
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
Input Offset Voltage 10 25 µV VS = ±15V, TA = +25°C 2
Offset Adjustment Range -3 3 mV RP = 20k 2
Power Supply Rejection Ratio 115 125 dB VS =±3V to±18V 2
Input Offset Current 0.3 1.5 nA VS = ±15V, TA = +25°C 2
Input Bias Current -2 0.5 2 nA VS = ±15V, TA = +25°C 2
Input Noise Voltage 85 150 nVrms 1Hz to 100Hz 2
Input Resistance Differential Mode 26 45 MΩ Differential Mode 2
Common-Mode Input Range -13 14 13 V 2
Common-Mode Rejection 130 140 dB VCM =±13V 2
Large Signal Voltage Gain 5110 12000 V/mV RL≥2KΩ, VO=±10V 2
Output Voltage Swing -13.5 14 13.5 V RL≥10kΩ 2
Output Voltage Swing -12.5 13 12.5 V RL≥2kΩ 2
Output Voltage Swing -12 12.5 12 V RL≥1kΩ 2
Slew Rate 0.1 0.3 V/µs RL≥2kΩ 3
Closed-Loop Bandwidth 0.4 0.6 MHz G=+1 3
Power Consumption 40 60 mW VS =±15V, No Load 3
Power Consumption 3.5 4.5 mW VS =±3V, No Load 3
Supply Current 1.3 2 mW VS =±15V, No Load 3
Input Offset Voltage 15 40 µV VS =±15V, -40°C ≤ TA ≤ +85°C 3
Average Input Offset Voltage Drift 0.1 0.3 µv/°C VS =±15V, -40°C ≤ TA ≤ +85°C 3
Power Supply Rejection Ratio 110 120 dB VS =±3 to ±18V, -40°C ≤ TA ≤ +85°C 3
Input Offset Current 0.5 2.2 nA VS =±15V, -40°C ≤ TA ≤ +85°C 3
Average Input Offset Current Drift 1.5 40 Pa/°C VS =±15V, -40°C ≤ TA ≤ +85°C 3
Input Bias Current -4 0.5 4 nA VS =±15V, -40°C ≤ TA ≤ +85°C 3
Average Input Bias Current Drift 8 40 Pa/°C VS =±15V, -40°C ≤ TA ≤ +85°C 3
Common-Mode Input Range -13 13.5 13 V VS =±15V, -40°C ≤ TA ≤ +85°C 3
Common-Mode Rejection 120 140 dB VCM =±13V, -40°C ≤ TA ≤ +85°C 3
Large Signal Voltage Gain 2000 6000 V/mV RL≥2KΩ, VO=±10V, -40°C ≤ TA ≤ +85°C 3
Output Voltage Swing -12 13 12 V RL≥2KΩ, -40°C ≤ TA ≤ +85°C 3
Power Consumption 60 75 mW VS =±15V, No Load, -40°C ≤ TA ≤ +85°C 3
Supply Current 2 25 mA VS =±15V, No Load, -40°C ≤ TA ≤ +85°C 3
Power Supply Voltage -22 22 V 4
Differential Input Voltage -30 30 V 4
Operating Temperature -40 85 °C Plastic DIP8, SOP8 4
Storage Temperature -65 125 °C Plastic DIP8, SOP8 4
Junction Temperature 150 °C 4
Thermal Resistance Junction-to-Ambient (SOP) θJA 160 °C/W SOP8 package 4
Lead Temperature (soldering, 3s) M package 260 °C soldering, 3s, M package 4

CAD (KiCad official)

  • Symbol: OPA177M
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: opa177m-etched.step / opa177m-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); opa177m.step / opa177m.glb are the bare package body.

Provenance

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

  • Datasheet: HGSEMI datasheet (12 pp, sha256 e45203799177efe2, retrieved 2026-10-19, tier: lcsc)
  • 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