Описание
The MCP3302 13-bit A/D converter features 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 user-programmable to provide two differential input pairs or four single-ended inputs. The MCP3304 is also user-programmable to configure into 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 to be added to any PIC microcontroller. The MCP3302 devices feature low current design that permits operation with typical standby and active currents of only 50 nA and 300 µA, respectively. The device is capable of conversion rates of up to 100 ksps with tested specifications over a 4.5V to 5.5V supply range. The reference voltage can be varied from 400 mV to 5V, yielding input-referred resolution between 98 µV and 1.22 mV. The MCP3302 is available in 14-pin PDIP, 150 mil SOIC and TSSOP packages. The MCP3304 is available in 16-pin PDIP and 150 mil SOIC packages. The full differential inputs of these devices enable a wide variety of signals to be used in applications such as remote data acquisition, portable instrumentation, and battery-operated applications.
- Full Differential Inputs
- 2 Differential or 4 Single-ended inputs (MCP3302)
- 4 Differential or 8 Single-ended Inputs (MCP3304)
- ±1 LSB maximum DNL
- ±1 LSB maximum INL (MCP3302/04-B)
- ±2 LSB maximum INL (MCP3302/04-C)
- Single supply operation: 4.5V to 5.5V
- 100 ksps sampling rate with 5V supply voltage
- 50 nA typical standby current, 1 µA maximum
- 450 µA maximum active current at 5V
- Industrial Temperature Range: -40°C to +85°C
- 14 and 16-pin PDIP, SOIC, and TSSOP packages
- Mixed Signal PICtail™ Demo Board (P/N: MXSIGDM) compatible
