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MCP3425A1T-E
Public Made by Adomby adom
Microchip Tech Analog To Digital Converters (ADC), SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MCP3425A1T-E
Microchip Tech · Analog To Digital Converters (ADC) · SOT-23-6
MCP3425A1T-E from Microchip Tech, 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 | VIN+ | power_in | Positive differential analog input; the differential input (VIN+ - VIN-) should not exceed VREF/PGA (2.048 V/PGA) for accurate measurement, and the absolute voltage on this pin must stay between VSS-0.3 V and VDD+0.3 V. |
| 2 | VSS | power_in | Ground pin and current return path of the device, to be connected to a ground plane through a low-impedance connection. |
| 3 | SCL | input | I2C serial clock input accepting only external clocks from the master (device is slave only); it is an open-drain N-channel driver and needs a pull-up resistor from VDD. |
| 4 | SDA | bidirectional | I2C serial data pin used for conversion result read-out and configuration bit writes; it is an open-drain N-channel driver and needs a pull-up resistor from VDD, and must be stable while SCL is high. |
| 5 | VDD | power_in | Positive supply pin; the supply must be maintained in the 2.7 V to 5.5 V range for specified operation, with a ~0.1 µF ceramic bypass capacitor (plus 10 µF tantalum recommended) to ground. |
| 6 | VIN- | power_in | Negative differential analog input; the absolute voltage on this pin must stay between VSS-0.3 V and VDD+0.3 V, and the common mode must keep both pins within the specified operating range. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOT-23-6 |
| Category | Data Acquisition |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply voltage range | VDD | 2.7 | 5.5 | V | 4 | ||
| Supply voltage absolute maximum | VDD | 7 | V | 3 | |||
| Operating temperature range | TA | -40 | 125 | °C | 4 | ||
| Specified temperature range | TA | -40 | 85 | °C | 4 | ||
| Current at input pins | -2 | 2 | mA | 3 | |||
| Current at output and supply pins | -10 | 10 | mA | 3 | |||
| Storage temperature | -65 | 150 | °C | 3 | |||
| Ambient temperature with power applied | -55 | 125 | °C | 3 | |||
| Maximum junction temperature | TJ | 150 | °C | 3 | |||
| All inputs and outputs w.r.t VSS (lower bound) | -0.3 | V | 3 | ||||
| ESD protection on all pins | 6 | kV | HBM | 3 | |||
| ESD protection on all pins | 400 | V | MM | 3 | |||
| Resolution and no missing codes | 12 | bits | DR = 240 SPS | 3 | |||
| Resolution and no missing codes | 14 | bits | DR = 60 SPS | 3 | |||
| Resolution and no missing codes | 16 | bits | DR = 15 SPS | 3 | |||
| Data rate | DR | 176 | 240 | 328 | SPS | S1,S0 = '00', (12 bits mode) | 3 |
| Data rate | DR | 44 | 60 | 82 | SPS | S1,S0 = '01', (14 bits mode) | 3 |
| Data rate | DR | 11 | 15 | 20.5 | SPS | S1,S0 = '10', (16 bits mode) | 3 |
| Supply current during conversion | IDDA | 155 | 190 | µA | VDD = 5.0V | 4 | |
| Supply current during standby mode | IDDS | 0.1 | 0.5 | µA | 4 | ||
| Low level output voltage | VOL | 0.4 | V | IOL = 3 mA, VDD = +5.0V | 4 | ||
| Supply current when I2C bus line is active | IDDB | 10 | µA | 4 | |||
| Input leakage current (high) | IILH | 1 | µA | VIH = 5.5V | 4 | ||
| Input leakage current (low) | IILL | -1 | µA | VIL = GND | 4 | ||
| Pin capacitance | CPIN | 10 | pF | 4 | |||
| I2C bus capacitance | Cb | 400 | pF | 4 | |||
| Thermal resistance, 6L SOT-23 | θJA | 190.5 | °C/W | 6L SOT-23 package | 4 |
CAD (KiCad official)
- Symbol:
MCP3425A1T-E - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
mcp3425a1t-e-etched.step/mcp3425a1t-e-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mcp3425a1t-e.step/mcp3425a1t-e.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Microchip Tech datasheet (38 pp, sha256
9391df2557efb462, retrieved 2026-10-21, tier: lcsc) - 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).
# MCP3425A1T-E
**Microchip Tech** · Analog To Digital Converters (ADC) · SOT-23-6
MCP3425A1T-E from Microchip Tech, 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 | VIN+ | power_in | Positive differential analog input; the differential input (VIN+ - VIN-) should not exceed VREF/PGA (2.048 V/PGA) for accurate measurement, and the absolute voltage on this pin must stay between VSS-0.3 V and VDD+0.3 V. |
| 2 | VSS | power_in | Ground pin and current return path of the device, to be connected to a ground plane through a low-impedance connection. |
| 3 | SCL | input | I2C serial clock input accepting only external clocks from the master (device is slave only); it is an open-drain N-channel driver and needs a pull-up resistor from VDD. |
| 4 | SDA | bidirectional | I2C serial data pin used for conversion result read-out and configuration bit writes; it is an open-drain N-channel driver and needs a pull-up resistor from VDD, and must be stable while SCL is high. |
| 5 | VDD | power_in | Positive supply pin; the supply must be maintained in the 2.7 V to 5.5 V range for specified operation, with a ~0.1 µF ceramic bypass capacitor (plus 10 µF tantalum recommended) to ground. |
| 6 | VIN- | power_in | Negative differential analog input; the absolute voltage on this pin must stay between VSS-0.3 V and VDD+0.3 V, and the common mode must keep both pins within the specified operating range. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | SOT-23-6 |
| Category | Data Acquisition |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply voltage range | VDD | 2.7 | | 5.5 | V | | 4 |
| Supply voltage absolute maximum | VDD | | | 7 | V | | 3 |
| Operating temperature range | TA | -40 | | 125 | °C | | 4 |
| Specified temperature range | TA | -40 | | 85 | °C | | 4 |
| Current at input pins | | -2 | | 2 | mA | | 3 |
| Current at output and supply pins | | -10 | | 10 | mA | | 3 |
| Storage temperature | | -65 | | 150 | °C | | 3 |
| Ambient temperature with power applied | | -55 | | 125 | °C | | 3 |
| Maximum junction temperature | TJ | | | 150 | °C | | 3 |
| All inputs and outputs w.r.t VSS (lower bound) | | -0.3 | | | V | | 3 |
| ESD protection on all pins | | 6 | | | kV | HBM | 3 |
| ESD protection on all pins | | 400 | | | V | MM | 3 |
| Resolution and no missing codes | | 12 | | | bits | DR = 240 SPS | 3 |
| Resolution and no missing codes | | 14 | | | bits | DR = 60 SPS | 3 |
| Resolution and no missing codes | | 16 | | | bits | DR = 15 SPS | 3 |
| Data rate | DR | 176 | 240 | 328 | SPS | S1,S0 = '00', (12 bits mode) | 3 |
| Data rate | DR | 44 | 60 | 82 | SPS | S1,S0 = '01', (14 bits mode) | 3 |
| Data rate | DR | 11 | 15 | 20.5 | SPS | S1,S0 = '10', (16 bits mode) | 3 |
| Supply current during conversion | IDDA | | 155 | 190 | µA | VDD = 5.0V | 4 |
| Supply current during standby mode | IDDS | | 0.1 | 0.5 | µA | | 4 |
| Low level output voltage | VOL | | | 0.4 | V | IOL = 3 mA, VDD = +5.0V | 4 |
| Supply current when I2C bus line is active | IDDB | | | 10 | µA | | 4 |
| Input leakage current (high) | IILH | | | 1 | µA | VIH = 5.5V | 4 |
| Input leakage current (low) | IILL | -1 | | | µA | VIL = GND | 4 |
| Pin capacitance | CPIN | | | 10 | pF | | 4 |
| I2C bus capacitance | Cb | | | 400 | pF | | 4 |
| Thermal resistance, 6L SOT-23 | θJA | | 190.5 | | °C/W | 6L SOT-23 package | 4 |
## CAD (KiCad official)
- Symbol: `MCP3425A1T-E`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `mcp3425a1t-e-etched.step` / `mcp3425a1t-e-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mcp3425a1t-e.step` / `mcp3425a1t-e.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Microchip Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589796304458592256) (38 pp, sha256 `9391df2557efb462`, retrieved 2026-10-21, tier: lcsc)
- **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](docs/mcp3425a1t-e-datasheet.pdf)