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docs gs8552-mr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
gs8552-mr-etched.fit.json gs8552-mr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
gs8552-mr-etched.glb gs8552-mr: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body w… · Ray
gs8552-mr-etched.step gs8552-mr: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body w… · Ray
gs8552-mr.glb Publish 0.1.0 · Ray
gs8552-mr.kicad_mod Publish 0.1.0 · Ray
gs8552-mr.kicad_sym Publish 0.1.0 · Ray
gs8552-mr.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
gs8552-mr.step Publish 0.1.0 · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json gs8552-mr: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body w… · Ray
README.md gs8552-mr: specified limits as data (metadata.characteristics, 28 rows from the datasheet) · Ray

GS8552-MR

Gainsil · Precision OpAmps · MSOP-8

GS8552-MR from Gainsil, in a MSOP-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 OUTA output Output of amplifier A. Rail-to-rail output, capable of swinging within ~5mV of the supply rails with light loads (>100kΩ) and 60mV with 10kΩ. Short-circuit current typically 60mA.
2 INA- input Inverting input of amplifier A. Rail-to-rail input, allowed common-mode range VSS-0.1V to VDD+0.1V. Input bias current typ 20pA.
3 INA+ input Non-inverting input of amplifier A. Rail-to-rail input, allowed common-mode range VSS-0.1V to VDD+0.1V. Input bias current typ 20pA.
4 VSS power_in Negative supply / ground. Single-supply operation ties this to GND; dual-supply operation accepts ±0.9V to ±2.75V. Absolute max VDD-VSS = 7.5V. Bypass to ground with a 0.1µF ceramic capacitor.
5 INB+ input Non-inverting input of amplifier B. Rail-to-rail input, allowed common-mode range VSS-0.1V to VDD+0.1V. Input bias current typ 20pA.
6 INB- input Inverting input of amplifier B. Rail-to-rail input, allowed common-mode range VSS-0.1V to VDD+0.1V. Input bias current typ 20pA.
7 OUTB output Output of amplifier B. Rail-to-rail output, capable of swinging within ~5mV of the supply rails with light loads (>100kΩ) and 60mV with 10kΩ. Short-circuit current typically 60mA.
8 VDD power_in Positive supply. Single-supply operation from +1.8V to +5.5V (absolute max VDD-VSS = 7.5V). Quiescent current typ 180µA per amplifier (360µA total). Bypass to VSS with a 0.1µF ceramic capacitor placed close to the pin.

Key specifications

Parameter Value
Manufacturer Gainsil
Package MSOP-8
Category Op-amp/Cmp
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • GS8552-MR
  • GS8552-MRSR
  • GS8552-SR

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 VOS 1 30 µV 3
Input Offset Voltage Drift ∆VOS/∆T 10 50 nV/℃ 3
Power Supply Voltage (VDD to Vss) -0.5 7.5 V 2
PDB Input Voltage 7 V 2
Operating Temperature Range -45 125 °C 2
Junction Temperature 160 °C 2
Storage Temperature Range -55 150 °C 2
Lead Temperature (soldering) 260 °C 10 sec 2
Single Supply Operating Voltage 1.8 5.5 V single-supply operation 6
Dual Supply Operating Voltage 0.9 2.75 V dual supplies ±0.9V to ±2.75V 6
Package Thermal Resistance, junction-to-ambient (MSOP-8) θJA 216 °C/W TA=+25℃ 2
Input Bias Current IB 20 pA 3
Input Offset Current IOS 10 pA 3
Common-Mode Rejection Ratio CMRR 110 dB VCM = 0V to 5V 3
Large Signal Voltage Gain AVO 145 dB RL = 10kΩ, VO = 0.3V to 4.7V 3
Output Voltage High VOH 4.998 V RL = 100kΩ to - VS 3
Output Voltage High VOH 4.994 V RL = 10kΩ to - VS 3
Output Voltage Low VOL 2 mV RL = 100kΩ to + VS 3
Output Voltage Low VOL 5 mV RL = 10kΩ to + VS 3
Short Circuit Limit ISC 60 mA RL =10Ω to - VS 3
Output Current IO 65 mA 3
Power Supply Rejection Ratio PSRR 115 dB VS = 2.5V to 5.5V 3
Quiescent Current IQ 180 µA VO = 0V, RL = 0Ω 3
Gain-Bandwidth Product GBP 1.8 MHz G = +100 3
Slew Rate SR 0.95 V/µs RL = 10kΩ 3
Overload Recovery Time 0.1 ms 3
Voltage Noise (peak-to-peak) en p-p 0.3 µVP-P 0Hz to 10Hz 3
Voltage Noise Density en 38 nV / Hz f = 1kHz 3

CAD (KiCad official)

  • Symbol: GS8552-MR
  • Footprint: Package_SO:MSOP-8_3x3mm_P0.65mm
  • 3D model: MSOP-8 (KiCad packages3D, STEP)
  • 3D model files: gs8552-mr-etched.step / gs8552-mr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); gs8552-mr.step / gs8552-mr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
gs8552-mr.step 123 KB You want the bare part, or you mark your own boards.
gs8552-mr-etched.step 2.2 MB You want the part with GS8552-MR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 535 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: Gainsil datasheet (14 pp, sha256 dc9b0f2b6cedff03, 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