Maxim MAX549ACUA+

Напряжение - небуферизованноеSPI2,5 В ~ 5,5 В0°C ~ 70°C

Overview

The MAX548A/MAX549A/MAX550A serial, 8-bit voltage-output digital-to-analog converters (DACs) operate from a single +2.5V to +5.5V supply. Their ±1LSB TUE specification is guaranteed over temperature. Operating current (supply current plus reference current) is typically 75μA per DAC with VDD = 2.5V. In shutdown, the DAC is disconnected from the reference, reducing current drain to less than 1μA. The MAX548A/MAX549ACUA allow each DAC to be shut down independently. The 10MHz, 3-wire serial interface is compatible with SPI/QSPI and Microwire interface standards. Double-buffered inputs provide flexibility when updating the DACs; the input and DAC registers can be updated individually or simultaneously. The MAX548A is a dual DAC with an asynchronous load input; it uses VDD as the reference input. The MAX549ACUA is a dual DAC with an external reference input. The MAX550A is a single DAC with an external reference input and an asynchronous load input. The MAX548A/MAX549A/MAX550A's low power consumption and small μMAX and DIP packages make these devices ideal for portable and battery-powered applications.

Features

Applications

• Digital Potentiometer
• Software Radio
• Wireless infrastructure:
• WCDMA, CDMA2000, TD-SCDMA, WiMAX
• Wideband communications:
• LMDS/MMDS, point-to-point
• Instrumentation:
• RF signal generators, arbitrary waveform generators
• Mobile Communications
• Process Control and Industrial Automation