# DAC1220LCN National Semiconductor, DAC1220LCN Datasheet

#### DAC1220LCN

#### Specifications of DAC1220LCN

#### DAC1220LCN Summary of contents

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... DAC1020LCN Non- 0 10% DAC1021LCN Linearity 0 20% DAC1022LCN Package Outline Temperature Range 0 05% DAC1220LCN Non- Linearity 0 20% DAC1222LCN Package Outline Note Devices may be ordered by either part number C 1996 National Semiconductor Corporation TL H 5689 (note 1 of electrical characteristics) DAC1021 and DAC1022 are direct replacements for the 10- ...

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... All Digital Inputs Low OUT 2 All Digital Inputs High http www national com Operating Ratings (Note 5) Temperature (T DAC1020LIV DAC1220LCJ 17V DAC1222LCJ DAC1020LCN DAC1020LCV 25V g DAC1021LCN Gnd DAC1022LCN DAC1220LCN 100 DAC1222LCN 150 260 C 300 C 800V (V a 15V V 10 000V unless otherwise specified) e ...

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Electrical Characteristics Parameter Conditions Digital Input (Figure 1) Low Threshold MIN MAX High Threshold MIN MAX Digital Input Current MIN MAX Digital ...

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Typical Applications The following applications are also valid for 12-bit systems using the DAC1220 and 2 additional digital inputs Operational Amplifier Bias Current ( Figure 3 ) The op amp bias current I flows through the 15k internal b feedback ...

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Typical Applications (Continued) FIGURE 5 Alternate Full-Scale Adjust (Allows Increasing or Decreasing the Gain OUT 1 REF OUT2 REF 2 where V can signal REF FIGURE 6 Precision Analog-to-Digital ...

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Typical Applications (Continued A10 OUT REF 2 4 1024 1024 where input is high input is low e ...

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Typical Applications (Continued OUT where V REF By connecting the DAC in the feedback loop of an opera- tional amplifier a linear digitally control gain block can be realized Note that with all digital inputs ...

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Typical Applications (Continued) Output frequency Output voltage range THD Excellent amplitude and frequency stability with temperature Low pass filter shown has a 1 kHz corner (for output frequencies below 10 Hz filter corner should be reduced) Any ...

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Typical Applications (Continued) MM74C00 NAND gates MM74C32 OR gates MM74C74 D flip-flop MM74C193 Binary up down counters Binary up down counter digitally ‘‘ramps’’ the DAC output Can stop counting at any desired 10-bit input code Senses up or down count ...

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Definition of Terms Resolution Resolution is defined as the reciprocal of the number of discrete steps in the D A output It is directly related to the number of switches or bits within the D A For 10 example the ...

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11 http www national com ...

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Physical Dimensions inches (millimeters) unless otherwise noted Order Number DAC1220LCJ or DAC1222LCJ Order Number DAC1020LCN DAC1021LCN or DAC1022LCN http www national com Cavity Dual-In-Line Package (J) NS Package Number J18A Molded Dual-In-Line Package (N) NS Package Number N16A 12 ...

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... Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Order Number DAC1220LCN DAC1221LCN or DAC1222LCN Molded Dual-In-Line Package (N) NS Package Number N18A 13 http www national com ...

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... Floor Straight Block a Ocean Centre 5 Canton Rd 49 (0) 180-530 85 85 Tsimshatsui Kowloon a Tel 49 (0) 180-532 78 32 Hong Kong a 49 (0) 180-532 93 58 Tel (852) 2737-1600 a Tel 49 (0) 180-534 16 80 Fax (852) 2736-9960 a National Semiconductor Japan Ltd Tel 81-043-299-2308 Fax 81-043-299-2408 ...