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MCP3428T-E

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Microchip Tech Analog To Digital Converters (ADCs), SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MCP3428T-E

Microchip Tech · Analog To Digital Converters (ADCs) · SOIC-14

MCP3428T-E from Microchip Tech, in a SOIC-14. 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 CH1+ input Positive differential analog input pin of channel 1; the voltage range on each input pin is VSS-0.3V to VDD+0.3V.
2 CH1- input Negative differential analog input pin of channel 1; it can be tied to VSS for single-ended operation, and its voltage range is VSS-0.3V to VDD+0.3V.
3 CH2+ input Positive differential analog input pin of channel 2; the voltage range on each input pin is VSS-0.3V to VDD+0.3V.
4 CH2- input Negative differential analog input pin of channel 2; it can be tied to VSS for single-ended operation, and its voltage range is VSS-0.3V to VDD+0.3V.
5 VSS power_in Ground pin and current return path of the device, to be connected through a low impedance path to the ground plane.
6 VDD power_in Positive supply voltage pin that must be maintained in the 2.7V to 5.5V range for specified operation, with a 0.1 µF ceramic bypass capacitor recommended.
7 SDA bidirectional Bidirectional serial data pin of the I2C interface, an open-drain N-channel driver that needs a pull-up resistor of 5 kΩ to 10 kΩ for standard and fast modes.
8 SCL input Serial clock pin of the I2C interface that accepts only external clocks, an open-drain N-channel driver that needs a pull-up resistor from VDD.
9 Adr0 input I2C address selection pin that sets the device address (see Section 5.3.2).
10 Adr1 input I2C address selection pin that sets the device address (see Section 5.3.2).
11 CH3+ input Positive differential analog input pin of channel 3; the voltage range on each input pin is VSS-0.3V to VDD+0.3V.
12 CH3- input Negative differential analog input pin of channel 3; it can be tied to VSS for single-ended operation, and its voltage range is VSS-0.3V to VDD+0.3V.
13 CH4+ input Positive differential analog input pin of channel 4; the voltage range on each input pin is VSS-0.3V to VDD+0.3V.
14 CH4- input Negative differential analog input pin of channel 4; it can be tied to VSS for single-ended operation, and its voltage range is VSS-0.3V to VDD+0.3V.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOIC-14
Category ADC/DAC/Data Conversion
Pins 14

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage range VDD 2.7 5.5 V 6
Specified temperature range TA -40 85 °C 7
Operating temperature range TA -40 125 °C 7
Supply voltage absolute maximum VDD 7 V 5
Ambient temperature with power applied TA -55 125 °C 5
Storage temperature range TSTG -65 150 °C 5
Maximum junction temperature TJ 150 °C 5
Current at input pins -2 2 mA 5
Current at output and supply pins -10 10 mA 5
Resolution (effective number of bits) 12 bits 12 Bits DR = 240 SPS 5
Resolution (effective number of bits) 14 bits 14 Bits DR = 60 SPS 5
Resolution (effective number of bits) 16 bits 16 Bits DR = 15 SPS 5
Data rate DR 176 240 328 SPS 12 bits mode 5
Data rate DR 44 60 82 SPS 14 bits mode 5
Data rate DR 11 15 20.5 SPS 16 bits mode 5
Supply current during conversion IDDA 145 180 µA VDD = 5.0V 6
Supply current during conversion IDDA 135 µA VDD = 3.0V 6
Supply current during standby mode IDDS 0.3 1 µA VDD = 5.0V 6
Supply current when I2C bus line is active IDDB 10 µA Device is in standby mode while I2C bus is active 6
Input leakage current high IILH 1 µA VIH = 5.5V 6
Input leakage current low IILL -1 µA VIL = GND 6
Low level output voltage VOL 0.4 V IOL = 3 mA 6
Pin capacitance CPIN 4 10 pF 6
I2C bus capacitance Cb 400 pF 6
Thermal resistance 14L-SOIC θJA 120 °C/W 7
Internal reference voltage VREF 2.048 V 5
Integral non-linearity INL 10 ppm of FSR DR = 15 SPS 5
Gain error 0.1 % PGA = 1, DR = 15 SPS 5
PGA gain error match 0.1 % Between any 2 PGA settings 5
Gain error drift 15 ppm/°C PGA=1, DR=15 SPS 5
Output noise 2.5 µVRMS TA = +25°C, DR =15 SPS, PGA = 1, VIN+ = VIN- = GND 5
Common input impedance ZINC(f) 25 MΩ PGA = 1, 2, 4, 8 5
Offset error VOS 30 µV PGA = 1, DR = 15 SPS 6
Offset drift vs. temperature 50 nV/°C 6
Common-mode rejection 105 dB at DC and PGA = 1 6
Common-mode rejection 110 dB at DC and PGA = 8, TA = +25°C 6
Gain vs. VDD 5 ppm/V TA = +25°C, VDD = 2.7V to 5.5V, PGA = 1 6
Power supply rejection at DC input 100 dB TA = +25°C, VDD = 2.7V to 5.5V, PGA = 1 6

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin MS = Plastic Micro Small Outline (MSOP), 8-lead SN = Plastic Small Outline SOIC, 8-lead 53

CAD (KiCad official)

  • Symbol: MCP3428T-E
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: mcp3428t-e-etched.step / mcp3428t-e-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mcp3428t-e.step / mcp3428t-e.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (56 pp, sha256 3d9cc322b8fd7415, retrieved 2026-10-28, tier: manufacturer)
  • 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