12-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO Ports

The MAX1220/MAX1257/MAX1258 is a highly integrated system monitoring and control solution which includes a 16-channel (MAX1257/MAX1258) or 8-ch (MAX1220) 12-bit Analog to Digital Converter (ADC), twelve 12-bit Digital to Analog Converters (DACs), an internal reference, an internal temp sensor, a 4-bit (MAX1220) or 12-bit (MAX1257/MAX1258) GPIO port, and a 25MHz SPI-/QSPI™-/MICROWIRE®- compatible serial interface.

The MAX1220 is available in a 36-pin TQFN package. The MAX1257/MAX1258 are available in 48-pin TQFN package. All devices are specified over the -40°C to +85°C temperature range. Applications

* Base-Station Control Loops * Controls for Optical Components * Data Acquisition Systems * System Supervision and Control

* Reduce Parts Count and Board Space with Fully Integrated System Monitor and Controller

* Monitors 8 (MAX1220) or 16 Voltages (MAX1257/MAX1258) Using 12-Bit, 225ksps ADC

* Controls 8 Output Voltage Level with 12-Bit, Octal, 2µs Settling DAC with Ultra-Low Glitch Energy (4n x VS)

* Measures Temperature with Internal ±1°C Accurate Temperature Sensor

* Options for Using Either Internal 2.5V (MAX1257) Reference, 4.096V (MAX1220/MAX1258) Reference or External Reference

* Includes 4 (MAX1220) or 12 (MAX1257/1258) GPIOs

* Lower Processor Requirements and Minimize Power Consumption and Heat Dissipation

* On-Chip FIFO, Channel-Scan Mode and Data Averaging

* Autoshutdown Between Conversions

* Low-Power ADC

* 2.5mA at 225ksps

* 22µA at 1ksps

* Low-Power DAC: 1.5mA

* TQFN Package with Exposed Pad

* Enable Maximum Dynamic Range with Availability of 2 Analog Power Supply Options: +2.7V to +3.6V (MAX1257) or +4.75V to +5.25V (MAX1220/MAX1258)