dac1210 National Semiconductor Corporation, dac1210 Datasheet
dac1210
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dac1210 Summary of contents
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... MICRO-DAC TM DAC1208 DAC1209 DAC1210 DAC1230 DAC1231 DAC1232 12-Bit mP Compatible Double-Buffered Converters General Description The DAC1208 and the DAC1230 series are 12-bit multiply- ing converters designed to interface directly with a wide variety of microprocessors (8080 8048 8085 Z-80 etc ) Double buffering input registers and associated con- trol lines allow these DACs to appear as a two-byte ‘ ...
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... Digital Inputs Digital Inputs Operating Conditions Lead Temperature (Soldering 10 sec ) Temperature Range DAC1208LCJ DAC1209LCJ DAC1210LCJ DAC1230LCJ 17 V DAC1231LCJ DAC1232LCJ DC DAC1231LIN DAC1232LIN V to GND CC DAC1208LCJ-1 DAC1210LCJ-1 25V g DAC1230LCJ-1 DAC1231LCJ 150 C DAC1232LCJ-1 DAC1231LCN 500 mW DAC1232LCN DAC1231LCWM DAC1232LCWM Range 100 ...
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Electrical Characteristics 000 REF Note 13) all other limits Symbol Parameter AC CHARACTERISTICS t Current Setting ...
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Switching Waveforms Typical Performance Characteristics Digital Input Threshold Gain and Linearity Error Variation vs Supply Voltage Write Pulse Width t Digital Input Threshold vs Temperature Control Set-Up Time t CS Data Set-Up Time ...
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... DC DC optimum for GND Pins 3 and 12 of the DAC1208 DAC1209 and DAC1210 must be connected to ground Pins 3 and End Point Test After Zero and FS Adjust the DAC1230 DAC1231 and DAC1232 must be connected to ground It is important that I potential for current switching applications Any difference ...
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... The DAC1208 series provides all 12 digital input lines which can be externally configured to be controlled from an 8-bit bus or can be driven directly from a 16-bit data bus FIGURE 1 DAC1208 DAC1209 DAC1210 Functional Diagram FIGURE 2 DAC1230 DAC1231 DAC1232 Functional Diagram All of the digital inputs to these DACs contain a unique ...
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Application Hints (Continued Automatic Transfer The 12-bit DAC word is automatically transferred to the DAC register and the R-2R ladder when the second write (the 4 LSBs of the data) occurs 1 2 Independent Processor Transfer Control In ...
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Application Hints (Continued Left-Justified Data Format It is important to realize that the input registers of these DACs are arranged to accept a left-justified data word from the microprocessor with the most significant 8 bits coming first (Byte ...
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... ROM is continuously providing DAC data Only the DAC1208 DAC1209 DAC1210 devices can have all 12 inputs flow-through Simply grounding CS WR1 WR2 and XFER and tying Byte 1 Byte 2 high allows both internal ...
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Application Hints (Continued) width If this does not provide a sufficient data hold time at the end of the write cycle a negative edge triggered one- shot can be included between the system write strobe and the WR pin of ...
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Application Hints (Continued) FIGURE 8 TRI-STATE Buffers Isolate the Data and Control Lines from the DACs A Transfer Word Provides a Flexible Update 5690-14 ...
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Application Hints (Continued ANALOG APPLICATIONS The analog output signal for these DACs is derived from a conventional R-2R current switching ladder network A de- tailed description of this network can be found on the DAC1000 series data sheet ...
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Application Hints (Continued) Transient response and settling time of the op amp are im- portant in fast data throughput applications The largest sta- bility problem is the feedback pole created by the feedback resistance R and the output capacitance of ...
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Application Hints (Continued Zero and Full-Scale Adjustments To calibrate the bipolar output circuit three adjustments are required The first step is to set all of the digital inputs LOW (to force then null the ...
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Application Hints (Continued) 1 Amp( 4096 High Current Controller 8-Bit Course 4-Bit Vernier DAC 5690 – 5690 – 20 ...
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... Ordering Information Part Number Non-Linearity DAC1208LCJ 0 018% DAC1208LCJ-1 0 018% DAC1209LCJ 0 024% DAC1210LCJ 0 050% DAC1210LCJ-1 0 050% DAC1230LCJ 0 018% DAC1230LCJ-1 0 018% DAC1231LCJ 0 024% DAC1231LCJ-1 0 024% DAC1231LCN 0 024% DAC1231LCWM 0 024% DAC1231LIN 0 024% DAC1232LCJ 0 050% DAC1232LCJ-1 0 050% DAC1232LCN 0 050% DAC1232LCWM 0 050% DAC1232LIN 0 050% Temperature Package ...
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... Physical Dimensions inches (millimeters) 20-Lead Ceramic Dual-In-Line Package (J) Order Number DAC1230LCJ DAC1230LCJ-1 DAC1231LCJ DAC1231LCJ-1 DAC1232LCJ or DAC1232LCJ-1 24-Lead Ceramic Dual-In-Line Package (J) Order Number DAC1208LCJ DAC1208LCJ-1 DAC1209LCJ DAC1210LCJ or DAC1210LCJ-1 NS Package Number J20A NS Package Number J24A 17 ...
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Physical Dimensions inches (millimeters) (Continued) 20-Lead Molded Small Outline Package (M) Order Number DAC1231LCWM or DAC1232LCWM 20-Lead Molded Dual-In-Line Package (N) Order Number DAC1231LCN DAC1231LIN DAC1232LCN or DAC1232LIN LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL ...