# MCP3553T-E

**Microchip Tech** · Analog To Digital Converters (ADCs) · MSOP-8

MCP3553T-E from Microchip Tech, in a MSOP-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 | VREF | power_in | Reference voltage analog input accepting single-ended references from 0.1V to VDD. |
| 2 | VIN+ | power_in | Non-inverting analog input; absolute voltage range extends from VSS - 0.3V to VDD + 0.3V. |
| 3 | VIN- | power_in | Inverting analog input; absolute voltage range extends from VSS - 0.3V to VDD + 0.3V. |
| 4 | VSS | power_in | Ground pin and current return path for analog and digital circuitry. |
| 5 | SCK | input | Serial clock digital input that synchronizes data communication in SPI mode 0,0 or 1,1, with data shifted out on the falling edge. |
| 6 | SDO/RDY | output | Data/ready digital output that goes active-low when a conversion completes and then clocks out the 24-bit data word, high-impedance when CS is high. |
| 7 | CS | input | Chip select digital input that gates communication and controls conversions, which begin on the falling edge of CS. |
| 8 | VDD | power_in | Positive supply for analog and digital circuitry, 2.7V to 5.5V, requiring a 0.1 µF bypass capacitor. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Microchip Tech |
| Package | MSOP-8 |
| Category | ADC/DAC/Data Conversion |
| 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 |
|---|---|---|---|---|---|---|---|
| No Missing Codes | NMC | 20 |  |  | bits | At DC (Note 5) | 3 |
| Conversion Time tolerance (MCP3553) | tCONV | -2 |  | 2 | % |  | 3 |
| Integral Non-Linearity | INL |  | 2 | 6 | ppm | TA = +25°C only (Note 2) | 3 |
| Offset Error | VOS | -12 | 3 | 12 | µV | TA = +25°C | 3 |
| Positive Full-Scale Error | VFS,P | -10 | 2 | 10 | ppm | TA = +25°C only | 3 |
| Negative Full-Scale Error | VFS,N | -10 | 2 | 10 | ppm | TA = +25°C only | 3 |
| Power Supply Voltage Range | VDD | 2.7 |  | 5.5 | V |  | 4 |
| Supply Current | IDD |  | 140 | 185 | µA | VDD = 5V | 4 |
| Supply Current | IDD |  | 120 |  | µA | VDD = 2.7V | 4 |
| Supply Current, Shutdown Mode | IDDS |  |  | 1 | µA | CS = SCK = VDD | 4 |
| Voltage Input Low (CS, SCK) | VIL |  |  | 0.4 | V |  | 4 |
| Reference Voltage Range |  | 0.1 |  |  | V |  | 4 |
| Voltage Output Low (SDO/RDY) | VOL |  |  | 0.4 | V | VOH = -1 mA, VDD = 5.0V | 5 |
| Input leakage Current (CS, SCK) | ILI | -1 |  | 1 | µA |  | 5 |
| CLK Frequency | fSCK |  |  | 5 | MHz | VDD = 3.3V or 5.0V, SDO load = 50 pF | 5 |
| CLK High | tHI | 90 |  |  | ns | VDD = 3.3V or 5.0V, SDO load = 50 pF | 5 |
| CLK Low | tLO | 90 |  |  | ns | VDD = 3.3V or 5.0V, SDO load = 50 pF | 5 |
| CLK fall to output data valid | tDO | 0 |  | 90 | ns | VDD = 3.3V or 5.0V, SDO load = 50 pF | 5 |
| CS low to indicate RDY state | tRDY | 0 |  | 50 | ns | VDD = 3.3V or 5.0V, SDO load = 50 pF | 5 |
| CS minimum low time | tCSL | 8 |  |  | µs | Note | 5 |
| RDY flag setup time | tSU | 20 |  |  | ns | VDD = 3.3V or 5.0V, SDO load = 50 pF | 5 |
| CS rise to output disable | tDIS | 20 |  |  | ns | VDD = 3.3V or 5.0V, SDO load = 50 pF | 5 |
| CS disable time | tCSD | 90 |  |  | ns | VDD = 3.3V or 5.0V, SDO load = 50 pF | 5 |
| Specified Temperature Range | TA | -40 |  | 85 | °C |  | 5 |
| Operating Temperature Range | TA | -40 |  | 125 | °C |  | 5 |
| Storage Temperature |  | -65 |  | 150 | °C |  | 3 |
| Ambient temp. with power applied |  | -55 |  | 125 | °C |  | 3 |
| Maximum Junction Temperature | TJ |  |  | 150 | °C |  | 3 |
| Current at Input Pins |  | -2 |  | 2 | mA | ±2 mA | 3 |
| Current at Output and Supply Pins |  | -10 |  | 10 | mA | ±10 mA | 3 |
| Thermal Resistance, 8L-MSOP | θJA |  | 211 |  | °C/W |  | 5 |
| Output Noise (MCP3553) | eN |  | 6 |  | µVRMS |  | 3 |
| Effective Resolution (MCP3553) | ER |  | 20.6 |  | bits RMS | VREF = 5V | 3 |
| Conversion Time (MCP3553) | tCONV |  | 16.67 |  | ms |  | 3 |
| Offset Drift |  |  | 0.04 |  | ppm/°C |  | 3 |
| Positive/Negative Full-Scale Error Drift |  |  | 0.028 |  | ppm/°C |  | 3 |
| Common Mode DC Rejection |  |  | -135 |  | dB | VCM range from 0 to VDD | 4 |
| Power Supply DC Rejection |  |  | -115 |  | dB |  | 4 |
| Common Mode 50/60 Hz Rejection | CMRR |  | -135 |  | dB | VCM varies from 0V to VDD | 4 |
| Differential Input Impedance |  |  | 2.4 |  | MΩ |  | 4 |
| Analog Input Sampling Capacitor |  |  | 10 |  | pF | Note 5 | 4 |
| Reference Input Impedance |  |  | 2.4 |  | MΩ | Note 4 | 4 |
| Supply Current, Sleep Mode | IDDSL |  | 10 |  | µA |  | 4 |
| Power-up to CS LOW | tPUCSL |  | 10 |  | µs |  | 5 |
| CS High to Shutdown Mode | tCSHSD |  | 10 |  | µs |  | 5 |
| Internal Pin Capacitance (CS, SCK, SDO/RDY) | CINT |  | 5 |  | pF | Note 1 | 5 |

## 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 | Package: MS = Plastic MSOP, 8-lead SN = Plastic SOIC (150 mil Body), 8-lead | 37 |

## CAD (KiCad official)

- Symbol: `MCP3553T-E`
- Footprint: `Package_SO:MSOP-8_3x3mm_P0.65mm`
- 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files: `mcp3553t-e-etched.step` / `mcp3553t-e-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mcp3553t-e.step` / `mcp3553t-e.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Microchip Tech datasheet](docs/mcp3553t-e-datasheet.pdf) (40 pp, sha256 `87917c931a7d2bf4`, retrieved 2026-10-30, tier: manufacturer)
- **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](docs/mcp3553t-e-datasheet.pdf)