MAXIM MAX5480BEEE+T

The MAX5480 is an 8-bit multiplying digital-to-analog converter (DAC) that consists of a thin-film R-2R resistor array with CMOS current steering switches. The inverted R-2R ladder divides the voltage or current reference in a binary manner among the eight steering switches. The magnitude of the current appearing at either OUT terminal depends on the number of switches selected; therefore, the output is an analog representation of the digital input. The two OUT terminals must be held at the same potential so a constant current is maintained in each ladder leg. This makes the REF input current independent of switch state and also ensures that the MAX5480 maintains its excellent linearity performance.

• The MAX5480 is a CMOS, 8-bit digital-to-analog converter (DAC) that interfaces directly with most microprocessors.
• On-chip input latches make the DAC load cycle interface similar to a RAM write cycle, where CS and WR are the only control inputs required.
• Linearity of ±1/2 LSB is guaranteed, and power consumption is less than 500 μW.
• Monotonicity is guaranteed over the full operating temperature range.
• The MAX5480 can be operated in either voltage-output or current-output mode.
• It is available in a small 16-pin QSOP package.
• QSOP-16 Package (same footprint as SO-8)
• Single +5V Supply Operation
• VOUT or IOUT Operation
• 8-Bit Parallel Interface
• Guaranteed Monotonic Over Temperature
• Low Power Consumption — 100 μW max
• ±1/2 LSB Linearity Over Temperature

• Digitally Adjusted Power Supplies
• Programmable Gain
• Automatic Test Equipment
• Portable, Battery-Powered Instruments
• VCO Frequency Control
• RF Transmit Control in Portable Radios