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零件编号 | DAC0808 | ||
描述 | 8-Bit D/A Converter | ||
制造商 | National Semiconductor | ||
LOGO | |||
1 Page
May 1999
DAC0808
8-Bit D/A Converter
General Description
The DAC0808 is an 8-bit monolithic digital-to-analog con-
verter (DAC) featuring a full scale output current settling time
of 150 ns while dissipating only 33 mW with ±5V supplies.
No reference current (IREF) trimming is required for most
applications since the full scale output current is typically ±1
LSB of 255 IREF/256. Relative accuracies of better than
±0.19% assure 8-bit monotonicity and linearity while zero
level output current of less than 4 µA provides 8-bit zero
accuracy for IREF≥2 mA. The power supply currents of the
DAC0808 is independent of bit codes, and exhibits essen-
tially 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
n Relative accuracy: ±0.19% error maximum
n Full scale current match: ±1 LSB typ
n Fast settling time: 150 ns typ
n Noninverting digital inputs are TTL and CMOS
compatible
n High speed multiplying input slew rate: 8 mA/µs
n Power supply voltage range: ±4.5V to ±18V
n Low power consumption: 33 mW @ ±5V
Block and Connection Diagrams
DS005687-1
Dual-In-Line Package
DS005687-2
Top View
Order Number DAC0808
See NS Package M16A or N16A
© 2001 National Semiconductor Corporation DS005687
www.national.com
Test Circuits (Continued)
FIGURE 5. Transient Response and Settling Time (Note 8)
DS005687-8
DS005687-9
FIGURE 6. Reference Current Slew Rate Measurement (Note 8)
www.national.com
DS005687-10
FIGURE 7. Positive VREF (Note 8)
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页数 | 12 页 | ||
下载 | [ DAC0808.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
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