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MAX5500：Low-Power, Quad, 12-Bit Voltage-Output DACs with Serial Interface

Low-Cost, +5V and +3V DAC with Shutdown and Configurable Output Amplifiers

The MAX5500/MAX5501 integrate four low-power, 12-bit digital-to analog converters (DACs) and four precision output amplifiers in a small, 20-pin package. Each negative input of the four precision amplifiers is externally accessible providing flexibility in gain configurations, remote sensing, and high output drive capacity, making the MAX5500/MAX5501 ideal for industrial-process-control applications. Other features include software shutdown, hardware shutdown lockout, an active-low reset which clears all registers and DACs to zero, a user-programmable logic output, and a serial-data output. Each DAC provides a double-buffered input organized as an input register followed by a DAC register. A 16-bit serial word loads data into each input register. The serial interface is compatible with SPI™/QSPI™/MICROWIRE™. The serial interface allows the input and DAC registers to be updated independently or simultaneously with a single software command. The 3-wire interface simultaneously updates the DAC registers. All logic inputs are TTL/CMOS-logic compatible. The MAX5500 operates from a single +5V power supply, and the MAX5501 operates from a single +3V power supply. The MAX5500/MAX5501 are specified over the extended -40°C to +105°C temperature range.

Key Features Four 12-Bit DACs with Configurable Output Amplifiers +5V or +3V Single-Supply Operation Low Supply Current: 0.85mA Normal Operation 10µA Shutdown Mode (MAX5500) Force-Sense Outputs Power-On Reset Clears All Registers and DACs to Zero Capable of Recalling Last State Prior to Shutdown SPI/QSPI/MICROWIRE Compatible Simultaneous or Independent Control of DACs through 3-Wire Serial Interface User-Programmable Digital Output Guaranteed Over Extended Temperature Range (-40°C to +105°C)

MAX5500, MAX5501: Functional Diagram Applications/Uses Automatic Test Equipment Digital Offset and Gain Adjustment Industrial Process Controls Microprocessor (µP)-Controlled Systems Motion Control Remote Industrial Controls

DataSheet

Parametrics

Quality and Environmental Data

• MAX5500.pdf

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