MCP3302/04 13-bit A/D converters feature full differential inputs and low power consumption in a small package that is ideal for battery powered systems and remote data acquisition applications. The MCP3302 is programmable to provide two differential input pairs or four single ended inputs. The MCP3304 is programmable and provides four differential input pairs or eight single ended inputs. Incorporating a successive approximation architecture with on-board sample and hold circuitry, these 13-bit A/D converters are specified to have ±1 LSB Differential Nonlinearity (DNL); ±1 LSB Integral Nonlinearity (INL) for B-grade and ±2 LSB for C-grade devices. The industry-standard SPI™ serial interface enables 13-bit A/D converter capability at up to 100 ksps sampling rate.
The Microchip Technology Inc. MCP3302/04 are 13-bit analog-to-digital (A/D) converters featuring full differential inputs and a low-power design ideal for battery-operated systems and remote data acquisition applications. The devices utilize a successive approximation architecture with on-board sample and hold circuitry, specified to have +1 LSB Differential Nonlinearity (DNL) and Integral Nonlinearity (INL) depending on the grade.
These converters feature an industry-standard SPI serial interface compatible with PICmicro microcontrollers. They operate over a broad voltage range of 2.7V to 5.5V, supporting sampling rates up to 100 ksps at 5V and 50 ksps at 2.7V. The MCP3302 offers two differential or four single-ended inputs, while the MCP3304 provides four differential or eight single-ended inputs.
| Resolution | 13-bit (12 data bits + sign bits) |
|---|---|
| Sampling Frequency | Up to 100 ksps at 5V supply |
| Supply Voltage Range | 2.7V to 5.5V |
| Integral Nonlinearity (INL) | +1 LSB for B-grade, +2 LSB for C-grade |
| Differential Nonlinearity (DNL) | +1 LSB max |
| Standby Current | 50 nA typical, 1 uA max |
The maximum sampling frequency is 100 ksps when the supply voltage is 5V.
The typical standby current is 50 nA.
The device operates with a single supply voltage ranging from 2.7V to 5.5V.