MCP3425
Every spec below is cited to the manufacturer datasheet. Pick your exact ordering code, compare the closest alternatives, then ask the assistant what it means for your design.
What the MCP3425 family does
The MCP3425 is a 16-bit delta-sigma analog-to-digital converter featuring an internal 2.048V reference and I2C interface. It operates on a single 2.7V to 5.5V supply with a differential input range of ±2.048V. Key specifications include 10ppm integral nonlinearity, programmable gain of 1x to 8x, and selectable data rates of 15, 60, or 240 samples per second. The device supports continuous or single conversion modes with automatic offset and gain calibration. It is designed for portable instruments, electronic scales, and temperature detection using RTDs, thermistors, or thermocouples. Available in a small SOT-23-6 package, it offers low power consumption with typical currents as low as 0.6µA in 12-bit mode.
MCP3425 datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| supply voltage range | 2.7 V | — | 5.5 V | Microchip datasheet, p. 7 | |
| operating temperature | -40 °C | — | 85 °C | Microchip datasheet, p. 4 — 温度规范 | |
| adc resolution | — | 16 bit | — | Microchip datasheet, p. 9 | |
| rise time | — | — | 40 ns | 从VIL至VIH, C_b = 100 pF,; fSCL = 3.4 \text{MHz}; (注 1); 高速模式（3.4 MHz） | Microchip datasheet, p. 22 |
| fall time | — | — | 40 ns | 从VIH至VIL, C_b = 100 pF,; fSCL = 3.4 \text{MHz}; (注 1); 高速模式（3.4 MHz） | Microchip datasheet, p. 22 |
| sample rate | — | 15 Hz | — | Microchip datasheet, p. 3 — 电气特性 | |
| settling time | — | 300 µs | — | Microchip datasheet, p. 9 | |
| channel count | — | 1 | — | Microchip datasheet, p. 7 — 表 3-1: 引脚功能表 |