Description: 12-Bit, Multichannel ADCs/DACs With FIFO, Temperature Sensing, And GPIO Ports
The MAX1220/MAX1257/MAX1258 integrate a 12-bit, multichannel, analog-to-digital converter (ADC), and a 12-bit, octal, digital-to-analog converter (DAC) in a single IC. These devices also include a temperature sensor and configurable general-purpose I/O ports (GPIOs) with a 25MHz SPI??-/QSPI??-/MICROWIRE??-compatible serial interface. The ADC is available in 8 and 16 input-channel versions. The octal DAC outputs settle within 2.0??s and the ADC has a 225ksps conversion rate.
All devices include an internal reference (2.5V or 4.096V) for both the ADC and DAC. Programmable reference modes allow the use of an internal reference, an external reference, or a combination of both. Features such as an internal ±1°C accurate temperature sensor, FIFO, scan modes, programmable internal or external clock modes, data averaging, and AutoShutdown?? allow users to minimize power consumption and processor requirements. The low glitch energy (4nV × s) and low digital feedthr |
