ADC0805 NSC [National Semiconductor], ADC0805 Datasheet - Page 11

• Manufacturer Part Number: ADC0805
• Description: 8-Bit uP Compatible A/D Converters
• Manufacturer: NSC [National Semiconductor]

Typical Applications
*After power-up, a momentary grounding of the WR input is needed to
guarantee operation.
*V
15% of V
*See Figure 5 to select R value
DB7 = “1” for V
Omit circuitry within the dotted area if
hysteresis is not needed
Operating with “Automotive” Ratiometric Transducers
IN
(−) = 0.15 V
CC
Self-Clocking in Free-Running Mode
V
IN
XDR
CC
(+)
µP Compatible Differential-Input Comparator with Pre-Set V
>
85% of V
V
IN
(−)+(V
CC
REF
/2)
(Continued)
DS005671-65
DS005671-67
11
µP Interface for Free-Running A/D
Ratiometric with V
OS
(with or without Hysteresis)
REF
/2 Forced
DS005671-69
DS005671-68
DS005671-66
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