8-Bit, Microprocessor-Compatible, A/D Converters6 I8 v% W/ l3 R
The ADC0802 family are CMOS 8-Bit, successive-approximation& X) \* q0 [% N3 y( M
A/D converters which use a modified potentiometric 3 j9 `4 g3 C- A5 D. \ladder and are designed to operate with the 8080A control- {; a7 z- A9 K
bus via three-state outputs. These converters appear to the ' U+ z3 i0 w" K; Rprocessor as memory locations or I/O ports, and hence no% a% {# Y/ _+ L8 ]# u% [* |, g
interfacing logic is required. & F8 g5 Y2 X( B5 SThe differential analog voltage input has good commonmode- 8 N, {, [. g4 P2 f5 Arejection and permits offsetting the analog zero-inputvoltage5 a) f' [; g+ D) n
value. In addition, the voltage reference input can be9 U7 r8 S& S; W8 w
adjusted to allow encoding any smaller analog voltage span 8 D; v0 U0 W2 \% [2 V4 q+ {to the full 8 bits of resolution. ! A8 V [& S9 O2 o, Z& e4 T ^