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MAX1258：12-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.

Key Features 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)

MAX1220, MAX1257, MAX1258: Functional Diagram Applications/Uses Base-Station Control Loops Controls for Optical Components Data Acquisition Systems System Supervision and Control

DataSheet

Parametrics

Design kits & evaluation modules

• MAX1258EVC16
• MAX1258EVKIT

Quality and Environmental Data

• MAX1258.pdf

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