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Contents

README

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MS5194T

Hangzhou Ruimeng Tech · Analog To Digital Converters (ADCs) · TSSOP-24

MS5194T from Hangzhou Ruimeng Tech, in a TSSOP-24. 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 SCLK input Serial clock input.
2 CLK bidirectional Clock input/output; provides the internal clock or allows it to be disabled.
3 CS input Chip select input pin.
4 NC unconnected No connection.
5 AIN6+/P1 bidirectional Analog channel 6 positive input / digital output pin P1.
6 AIN6-/P2 bidirectional Analog channel 6 negative input / digital output pin P2.
7 AIN1+ input Analog channel 1 positive input.
8 AIN1- input Analog channel 1 negative input.
9 AIN2+ input Analog channel 2 positive input.
10 AIN2- input Analog channel 2 negative input.
11 AIN3+ input Analog channel 3 positive input.
12 AIN3- input Analog channel 3 negative input.
13 REFIN1+ input Positive reference voltage 1 input.
14 REFIN1- input Negative reference voltage 1 input.
15 AIN5+/IOUT2 bidirectional Output of the internal excitation current source; can also serve as analog channel 5 positive input.
16 AIN5-/IOUT1 bidirectional Output of the internal excitation current source; can also serve as analog channel 5 negative input.
17 AIN4+/REFIN2+ input Positive reference voltage 2 input; can also serve as analog channel 4 positive input.
18 AIN4-/REFIN2- input Negative reference voltage 2 input; can also serve as analog channel 4 negative input.
19 PSW input Low-side power switch to ground.
20 GND power_in Ground.
21 AVDD power_in Analog supply voltage, 2.7V to 5.25V.
22 DVDD power_in Digital interface supply pin, between 2.7V and 5.25V.
23 DOUT/RDY output Serial data output / data-ready output pin.
24 DIN input Serial data input.

Key specifications

Parameter Value
Manufacturer Hangzhou Ruimeng Tech
Package TSSOP-24
Category Data Converters
Pins 24

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Analog supply voltage AVDD 2.7 5.25 V 9
Digital supply voltage DVDD 2.7 5.25 V 9
Analog supply voltage range AVDD -0.3 7 V 5
Digital supply voltage range DVDD -0.3 7 V 5
Analog input voltage range AIN -0.3 V max AVDD+0.3 V 5
Reference input voltage range VREFIN -0.3 V max AVDD+0.3 V 5
Digital input voltage range -0.3 V max DVDD+0.3 V 5
Digital output voltage range V(LE) -0.3 V max DVDD+0.3 V 5
Input port current 10 mA 5
Operating temperature range -40 105 °C 5
Storage temperature range Tstg -60 150 °C 5
Soldering temperature 260 °C 10 sec 5
ESD voltage (HBM) 4000 V HBM 5
Integral nonlinearity INL -15 15 ppm of FSR chopping enabled 6
Offset error -1 1 uV chopping enabled 6
Offset error drift -10 10 nV/°C chopping enabled 6
Full-scale error -10 10 uV chopping enabled 6
Gain drift 1 ppm/°C chopping enabled 6
Power supply rejection 100 dB AIN=1V/gain, gain > 4 6
Analog input current -1 1 nA Gain = 1 or 2, update rate < 100 Hz 6
Analog input current -250 250 pA Gain = 4 to 128, update rate < 100 Hz 6
Analog input current drift -2 2 pA/°C buffered mode or in-amp on 7
Analog input current vs voltage -400 400 nA/V input buffer off 7
Analog input current drift -50 50 pA/V/°C input buffer off 7
Common-mode rejection (dc) 100 dB AIN = 1 V/gain, gain >= 4 7
Internal reference drift 4 15 ppm/°C 7
External reference voltage VREF 0.1 2.5 V max AVDD 7
Excitation current initial tolerance -5 5 % 7
Excitation current drift 200 ppm/°C 7
Excitation current matching -0.5 0.5 % 7
Low-side switch on resistance 7 9 Ω 8
Low-side switch allowed current 30 mA 8
CS input low voltage 0.8 V DVDD=5V 8
CS input low voltage 0.4 V DVDD=3V 8
CS input high voltage 2 V 8
Input current -10 10 uA 9
Output high voltage 4 V AVDD=5 V, ISOURCE=200 μA 9
Output low voltage 0.4 V AVDD=3 V, ISINK=100 μA 9
Floating-state leakage current -10 10 uA 9
Supply current, buffer off, external reference 110 140 uA AVDD=3V, input buffer off, external reference 9
Supply current, buffer off, external reference 125 140 uA AVDD=5V, input buffer off, external reference 9
Supply current, gain 4 to 128, external reference 300 400 uA AVDD=3V, gain 4 to 128, external reference 9
Supply current, gain 4 to 128, external reference 350 400 uA AVDD=5V, gain 4 to 128, external reference 9
Supply current, gain 4 to 128, internal reference 380 500 uA AVDD=3V, gain 4 to 128, internal reference 9
Supply current, gain 4 to 128, internal reference 440 500 uA AVDD=5V, gain 4 to 128, internal reference 9
Power-down current 1 uA 9

CAD (KiCad official)

  • Symbol: MS5194T
  • Footprint: Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm
  • 3D model: TSSOP-24 (KiCad packages3D, STEP)
  • 3D model files: ms5194t-etched.step / ms5194t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ms5194t.step / ms5194t.glb are the bare package body.

Provenance

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

  • Datasheet: Hangzhou Ruimeng Tech datasheet (17 pp, sha256 5b682b2d793cf770, retrieved 2026-10-22, 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-sonnet-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