main
History Download
Ray Publish 0.1.0 8c8b2a4 2d ago

GX122

GXCAS · Temperature Sensors · SOT-23-6

GX122 from GXCAS, in a SOT-23-6. 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 ALERT output Open-drain alarm output that is active low by default (POL=0) and can be set active high via the POL bit; it requires an external pull-up resistor, with VOL of 0.4 V max at 4 mA sink and leakage of ±1 µA for 0 V ≤ VIN ≤ 6 V.
2 GND power_in Ground reference for the device.
3 VDD power_in Supply pin with an operating range of 2.7 V to 5.5 V, where a 0.1 µF bypass capacitor is recommended.
4 SO/I bidirectional Serial data output/input for the SPI interface, with VOL of 0.4 V max at 3 mA sink and VOH of (V+)-0.4 V min at 2 mA source, and it goes high impedance when CS is released.
5 /CS input Active-low SPI chip select; pulling it low starts a data transfer, and input logic levels are VIH of 0.7(V+) min and VIL of 0.3(V+) max.
6 SCK input SPI serial clock input with a minimum SCK period of 100 ns, and input logic levels of VIH 0.7(V+) min and VIL 0.3(V+) max.

Key specifications

Parameter Value
Manufacturer GXCAS
Package SOT-23-6
Category Sensors
Pins 6

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 temperature range -55 150 ℃ 3
Temperature accuracy (温度误差) -0.5 0.3 0.5 ℃ -25℃ to +85℃ 3
Temperature accuracy (温度误差) -1 0.5 1 ℃ -40℃ to +125℃ 3
Temperature accuracy (温度误差) -1 1 ℃ -55℃ to +150℃ 3
Supply sensitivity (随电源变化) -0.3 0.1 0.3 ℃/V 3
Selectable resolution (分辨率(1) 可选择) -0.0625 0.0625 ℃ 3
Input current SO/I, SCK, CS (输入电流) -1 1 µA 0V ≤ VIN ≤ V+ 3
Output logic low SO/I (输出逻辑 VOL) VOL 0.4 V ISINK = 3mA 3
Output logic low ALERT (输出逻辑 VOL) VOL 0.4 V ISINK = 4mA 3
ALERT leakage current (漏电流) -1 1 µA 0V ≤ VIN ≤ 6V 3
Input capacitance SO/I, SCK, CS, ALERT (输入电容) 2.5 pF 3
Conversion time 9-Bit + Sign (转换时间) 30 40 ms 9-Bit + Sign 3
Conversion time 10-Bit + Sign (转换时间) 60 80 ms 10-Bit + Sign 3
Conversion time 11-Bit + Sign (转换时间) 120 160 ms 11-Bit + Sign 3
Conversion time 12-Bit + Sign (转换时间) 240 320 ms 12-Bit + Sign 3
Operating voltage (操作范围) 2.7 5.5 V 3
Static current (静态电流) 50 75 µA 不通信 3
Shutdown current (关断电流) 0.1 1 µA 不通信 3
Specified temperature range (指定范围) -40 125 ℃ 3
Operating temperature range (操作范围) -55 150 ℃ 3
Storage temperature range (存储范围) -60 150 ℃ 3
Thermal resistance, SOT23-6 surface-mount (热电阻) 200 ℃/W SOT23-6 Surface-Mount 3
SCK period (SCK 周期) 100 ns 12
Data input setup to SCK rising edge (数据输入上升沿 SCK 建立时间) 20 ns 12
SCK falling edge to output data delay (SCK 下降沿到输出数据延迟) 30 ns 12
SCK rising edge to input data hold (SCK 上升沿到输入数据保持时间) 20 ns 12
CS falling edge to rising SCK setup (CS 到上升沿 SCK 建立时间) 40 ns 12
CS to output data delay (CS 到输出数据延迟) 30 ns 12
CS rising edge to output high impedance (CS 上升沿输出高阻抗) 30 ns 12

CAD (KiCad official)

  • Symbol: GX122
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: gx122-etched.step / gx122-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); gx122.step / gx122.glb are the bare package body.

Provenance

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

  • Datasheet: GXCAS datasheet (13 pp, sha256 e95f59480b2b72c9, retrieved 2026-10-19, 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