component
LM331MX-HXY
Public Made by Adomby adom
HXY MOSFET Analog To Digital Converters (ADC), SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM331MX-HXY
HXY MOSFET · Analog To Digital Converters (ADC) · SOP-8
LM331MX-HXY from HXY MOSFET, 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 | CURO | output | Current output of the V/F current source, with output current of 116-156 µA at Rg=14 kΩ and a voltage-variation figure of 0.2-1.0 µA over 0-10 V, per the electrical characteristics table. |
| 2 | REFCUR | passive | Reference current pin, where the external Rs resistor sets the reference current, with the datasheet giving a reference voltage of 1.70-2.08 V (typ. 1.89 V) on this node. |
| 3 | FOUT | output | Frequency output that delivers pulse trains proportional to the input voltage, compatible with all logic forms, with a logic output saturation voltage of 0.15 V typ. / 0.50 V max. |
| 4 | GND | power_in | Ground reference for the device. |
| 5 | R/C | passive | Timing RC comparator input, with the timer threshold voltage specified at 0.63-0.701 V (typ. 0.667 V). |
| 6 | THD | input | Inverting input of the comparator. |
| 7 | COM | input | Non-inverting input of the comparator, with a common-mode range of 0.2 V to Vcc-2.0 V. |
| 8 | VS | power_in | Power supply input, with the absolute maximum Vcc rated at 40 V and operation specified down to 4 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HXY MOSFET |
| Package | SOP-8 |
| Category | Data Acquisition |
| 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 |
|---|---|---|---|---|---|---|---|
| VFC nonlinearity | VFCNL | -0.01 | 0.003 | 0.01 | %Full-Scale | 4.5<Vcc<20V | 3 |
| Conversion accuracy scale factor | ACCUR | 0.9 | 1 | 1.1 | KHz/V | 3 | |
| Gain change vs supply voltage | △G/VCC | 0.01 | 0.1 | %/V | 4.5V<Vcc<10V | 3 | |
| Gain change vs supply voltage | △G/VCC | 0.006 | 0.06 | %/V | 10V<Vcc<40V | 3 | |
| Input comparator offset voltage | VIO | -10 | 3 | 10 | mV | 0°C<TA<+70°C | 3 |
| Input comparator bias current | BIAS | -300 | 80 | nA | 3 | ||
| Input comparator offset current | Io | -100 | 8 | 100 | nA | 3 | |
| Common-mode input range (max = Vcc-2.0 V) | VCM | 0.2 | V | 3 | |||
| Timer threshold voltage (pin 5) | VTH | 0.63 | 0.667 | 0.701 | V | 3 | |
| Timer (pin 5) input bias current | -100 | 10 | 100 | nA | VCC=15V; 0V<V5<9.9V | 3 | |
| Timer (pin 5) input bias current | 200 | 1000 | nA | VCC=15V; V5=10V | 3 | ||
| Timer (pin 5) saturation voltage | VSAT | 0.22 | 0.5 | V | I=5mA | 3 | |
| Current source (pin 1) output current | IO | 116 | 136 | 156 | uA | Rg=14KΩ | 3 |
| Current source (pin 1) output change with voltage | △IO/△V1 | 0.2 | 1 | uA | 0V<V1<10V | 3 | |
| Current source off leakage | LKG | 0.02 | 10 | nA | 3 | ||
| Reference voltage (pin 2) | VREF | 1.7 | 1.89 | 2.08 | VDC | 3 | |
| Reference voltage temperature stability | -60 | 60 | ppm/°c | 3 | |||
| Reference voltage long-term stability | -0.1 | 0.1 | % | 1000 hours | 3 | ||
| Logic output (pin 3) saturation voltage | VSAT | 0.15 | 0.5 | V | 3 | ||
| Logic output (pin 3) saturation voltage | VSAT | 0.1 | 0.4 | V | 3 | ||
| Logic output (pin 3) off leakage | Lkg | 0.05 | 1 | uA | 3 | ||
| Power supply current | Icc | 1.5 | 3 | mA | Vcc=5V | 3 | |
| Power supply current | Icc | 2 | 4 | mA | Vcc=40V | 3 | |
| Supply voltage (absolute maximum) | VCC | 40 | V | 1 | |||
| Input voltage range (absolute maximum) | Vl | -0.2 | V | 1 | |||
| Power dissipation (absolute maximum) | PD | 500 | mW | 1 | |||
| Operating temperature range | TOPR | 0 | 70 | °C | 1 |
CAD (KiCad official)
- Symbol:
LM331MX-HXY - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
lm331mx-hxy-etched.step/lm331mx-hxy-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm331mx-hxy.step/lm331mx-hxy.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HXY MOSFET datasheet (7 pp, sha256
c1383577f9963047, 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, primaryclaude-haiku-5-5(text), consensusclaude-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).