AD7243 PDF Datasheet
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Description
This is LC2MOS 12-Bit Serial DACPORT. a
FEATURES 12-Bit CMOS DAC with On-Chip Voltage Reference Output Amplifier Three Selectable Output Ranges 5 V to +5 V, 0 V to +5 V, 0 V to +10 V Serial Interface 300 kH- DAC Update Rate Small Size: 16-Lead DIP or SOIC Nonlinearity: 1, 2 LSB T MIN to T MAX Low Power Dissipation: 100 mW Typical APPLICATIONS Process Control Industrial Automation Digital Signal Processing Systems Input, Output Ports
REFOUT
LC2MOS 12-Bit Serial DACPORT AD7243
FUNCTIONAL BLOCK DIAGRAM
VDD
2R
R OFS
2R
VOUT 12 - BIT DAC REFIN 12 AGND
AD7243
DAC LATCH 12 DGND
INPUT SHIFT REGISTER VSS
SDIN CLR BIN, SCLK SYNC LDAC DCEN SDO COMP
GENERAL DESCRIPTION
The AD7243 is a complete 12-bit, voltage output, digital-toanalog converter with output amplifier and Zener voltage reference on a monolithic CMOS chip. No external trims are required to achieve full specified performance. The output amplifier is capable of developing +10 V across a 2 kΩ load. The output voltage ranges with single supply operation are 0 V t.