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DAC0808/DAC0807/DAC0806 pdf da
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2009-04-11
凤毛麟角
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DAC0808/DAC0807/DAC0806 8-Bit D/A Converters
General Description
The DAC0808 series is an 8-bit monolithic digital-to-analog
converter (DAC) featuring a full scale output current settling
time of 150 ns while dissipating only 33 mW with g5V supplies.
No reference current (IREF) trimming is required for
most applications since the full scale output current is typically
g1 LSB of 255 IREF/ 256. Relative accuracies of better
than g0.19% assure 8-bit monotonicity and linearity
while zero level output current of less than 4 mA provides
8-bit zero accuracy for IREFt2 mA. The power supply currents
of the DAC0808 series are independent of bit codes,
and exhibits essentially constant device characteristics over
the entire supply voltage range.
The DAC0808 will interface directly with popular TTL, DTL
or CMOS logic levels, and is a direct replacement for the
MC1508/MC1408. For higher speed applications, see
DAC0800 data sheet.
Features
Y Relative accuracy: g0.19% error maximum (DAC0808)
Y Full scale current match: g1 LSB typ
Y 7 and 6-bit accuracy available (DAC0807, DAC0806)
Y Fast settling time: 150 ns typ
Y Noninverting digital inputs are TTL and CMOS compatible
Y High speed multiplying input slew rate: 8 mA/ms
Y Power supply voltage range: g4.5V to g18V
Y Low power consumption: 33 mW @g5V
General Description
The DAC0808 series is an 8-bit monolithic digital-to-analog
converter (DAC) featuring a full scale output current settling
time of 150 ns while dissipating only 33 mW with g5V supplies.
No reference current (IREF) trimming is required for
most applications since the full scale output current is typically
g1 LSB of 255 IREF/ 256. Relative accuracies of better
than g0.19% assure 8-bit monotonicity and linearity
while zero level output current of less than 4 mA provides
8-bit zero accuracy for IREFt2 mA. The power supply currents
of the DAC0808 series are independent of bit codes,
and exhibits essentially constant device characteristics over
the entire supply voltage range.
The DAC0808 will interface directly with popular TTL, DTL
or CMOS logic levels, and is a direct replacement for the
MC1508/MC1408. For higher speed applications, see
DAC0800 data sheet.
Features
Y Relative accuracy: g0.19% error maximum (DAC0808)
Y Full scale current match: g1 LSB typ
Y 7 and 6-bit accuracy available (DAC0807, DAC0806)
Y Fast settling time: 150 ns typ
Y Noninverting digital inputs are TTL and CMOS compatible
Y High speed multiplying input slew rate: 8 mA/ms
Y Power supply voltage range: g4.5V to g18V
Y Low power consumption: 33 mW @g5V
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