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Part Number: MAX549A
Description: The MAX548A/MAX549A/MAX550A serial, 8-bit voltage-output digital-to-analog converters (DACs) operate froma single +2.5V...
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MAX549A
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DataSheet
General Description
MAX549A General Description
The MAX548A/MAX549A/MAX550A serial, 8-bit voltage-output digital-to-analog converters (DACs) operate froma 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/MAX549A allow each DAC to be shut down in-dependently.
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 MAX549A 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 makethese devices ideal for portable and battery-powered applications.
MAX549A Maximum Ratings
VDD, SCLK, DIN, CS, LDAC, OUT_ to GND ....................-0.3V to 6V
REF to GND...................................................-0.3V to (VDD + 0.3V)
Maximum Current (any pin) ..............................................±50mA
Continuous Power Dissipation (TA = +70°C)
Plastic DIP (derate 9.09mW/°C above +70°C) ...............727mW
µMAX (derate 4.10mW/°C above +70°C) .......................330mW
Operating Temperature Ranges
MAX5_ _AC_ A.......................................................0°C to +70°C
MAX5_ _AE_ A....................................................-40°C to +85°C
Storage Temperature Range ...........................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
REF to GND...................................................-0.3V to (VDD + 0.3V)
Maximum Current (any pin) ..............................................±50mA
Continuous Power Dissipation (TA = +70°C)
Plastic DIP (derate 9.09mW/°C above +70°C) ...............727mW
µMAX (derate 4.10mW/°C above +70°C) .......................330mW
Operating Temperature Ranges
MAX5_ _AC_ A.......................................................0°C to +70°C
MAX5_ _AE_ A....................................................-40°C to +85°C
Storage Temperature Range ...........................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
MAX549A Features
© +2.5V to +5.5V Single-Supply Operation
© ±1LSB (max) TUE
© Power-On Reset Clears All Registers to Zero
© Low Operating Current:
150µA (MAX548A/MAX549A, VREF = +2.5V)
75µA (MAX550A, VREF = +2.5V)
© 1µA Shutdown Mode
© 10MHz, 3-Wire Serial Interface Compatible wi SPI/QSPI and Microwire
© µMAX Package-50% Smaller than 8-Pin SO
© Independent Shutdown of DACs (MAX548A/MAX549A)
MAX549A Typical Application
Battery-Powered Systems
VCXO Control
Comparator-Level Settings
GaAs Amp Bias Control
Digital Gain and Offset Control
VCXO Control
Comparator-Level Settings
GaAs Amp Bias Control
Digital Gain and Offset Control
MAX549A Connection Diagram
MAX549A
PDF/DataSheet Download
- Datasheet: MAX549A
- File Size: 176915 KB
- Manufacturer: Maixm
- Click here to Download
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