DAC1006LCWM NSC [National Semiconductor], DAC1006LCWM Datasheet
DAC1006LCWM
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DAC1006LCWM Summary of contents
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DAC1006 DAC1007 DAC1008 P Compatible Double-Buffered Converters General Description The DAC1006 7 8 are advanced CMOS Si-Cr 10- 9- and 8-bit accurate multiplying DACs which are designed to inter- face directly with the 8080 8048 8085 Z-80 ...
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Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage ( Voltage at Any Digital Input Voltage at V Input REF Storage Temperature Range ...
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Electrical Characteristics Tested and Parameter Conditions Output Leakage MIN MAX Current I All data inputs OUT1 latched low I All data inputs ...
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Switching Waveforms Typical Performance Characteristics Errors vs Supply Voltage Control Setup Time t CS Digital Threshold vs Supply Voltage TL H 5688 – 2 Errors vs Temperature Write Width t Data Setup Time t Data Hold Time t DS Digital ...
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Block and Connection Diagrams DAC1006 1007 1008 (20-Pin Parts) DAC1006 1007 1008 Simple Hookup for a ‘‘Quick Look’’ A TOTAL OF 10 INPUT SWITCHES 1K RESISTORS Notes 1 For V 10 240 V the output voltage steps are approximately 10 ...
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DEFINITION OF PACKAGE PINOUTS 1 1 Control Signals (All control signals are level actuated ) CS Chip Select active low it will enable WR WR Write The active low WR is used to load the digital data bits ...
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Settling Time Settling time is the time required from a code transition until the DAC output reaches within the final output value Full-scale settling time requires a zero to full-scale or full-scale to zero output change Full-Scale Error Full scale ...
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Op Amp Bias Current Input Leads The op amp bias current (I ) CAN CAUSE DC ERRORS BI- B FET TM op amps have very low bias current and therefore the error introduced is negligible BI-FET op amps ...
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Figure 4 where the sign of the reference voltage has been changed to provide a positive output voltage Note that the output current I now flows through the R OUT1 pin Providing a Bipolar Output ...
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Analog Operation in the Voltage Switching Mode Some useful application circuits result if the R-2R ladder is operated in the voltage switching mode There are two very important things to remember when using the DAC in the voltage ...
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FIGURE 10 Providing a Bipolar Output Voltage with a Single Op Amp FIGURE 11 Increasing the Output Voltage Swing The output voltage swing can be expanded by adding 2 resistors to Figure 10 as shown in Figure 11 These added ...
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Current Switching with Bipolar Output Voltage The circuit of Figure 12 shows the 3 adjustments needed The first step is to set all of the digital inputs LOW (to force and then trim ‘‘zero ...
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FIGURE 14 Voltage Switching with a Bipolar Output Voltage 6 0 DIGITAL CONTROL DESCRIPTION The DAC1006 series of products can be used in a wide variety of operating modes Most of the options are shown in Table 1 Also shown ...
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These data possibilities are shown in Figure 15 Note that the justification of data depends on how the 10-bit data word is located within the 16-bit data source (CPU) register In either case there is a surplus of 6 bits ...
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Automatic Transfer This makes use of a double byte (double precision) write The first byte (8 bits) is strobed into the input latch and the second byte causes a simultaneous strobe of the two re- maining bits ...
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FIGURE 17 Input Connections and Logic for DAC1006 1007 1008 with 16-Bit Data Bus Three operating modes are possible flow through single buffered or double buffered The timing diagrams for these are shown below Single Buffered DAC1006 ...
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MICROPROCESSOR INTERFACE The logic functions of the DAC1006 family have been ori- ented towards an ease of interface with all popular Ps The following sections discuss in detail a few useful interface schemes 7 1 DAC1001 1 2 ...
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DAC (with regard to left justified data) and the implementation of the PUSH instruction which will output the higher order byte of the register pair (i e register B of the BC pair) first The DAC ...
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FIGURE 20 Isolating Data Bus from DAC Circuitry to Eliminate Digital Noise Coupling FIGURE 21 Digitally Controlled Amplifier Attenuator 7 4 Digitally Controlled Amplifier Attenuator An unusual application of the DAC Figure 21 applies the input voltage via the on-chip ...
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... FIGURE 22 Digital to Synchro Converter Ordering Information For Left Justified Data Accuracy 0 05% (10-bit) 0 10% (9-bit) 0 20% (8-bit) Package Outline 20-pin package Temperature Range DAC1006LCN DAC1006LCWM DAC1007LCN DAC1008LCN N20A M20B 5688– 27 ...
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... Physical Dimensions inches (millimeters) Order Number DAC1006LCWM NS Package Number M20B 21 ...
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Physical Dimensions inches (millimeters) (Continued) Order Number DAC1006LCN DAC1007LCN or DAC1008LCN LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL ...