器件资料：ADC0802，ADC0803，ADC0804

电力新兵

8-Bit, Microprocessor-Compatible, A/D Converters
The ADC0802 family are CMOS 8-Bit, successive-approximation
! t8 _* W2 z, b1 z9 I8 Y! U' fA/D converters which use a modified potentiometric
* {# h4 u9 `' K) g' F* Aladder and are designed to operate with the 8080A control
% @8 z3 B, x( L( q0 N+ zbus via three-state outputs. These converters appear to the
% E& J, E8 r! ~( @processor as memory locations or I/O ports, and hence no
interfacing logic is required.
The differential analog voltage input has good commonmode-
9 D7 S2 g3 I) r+ h# u6 \rejection and permits offsetting the analog zero-inputvoltage
4 ]( v' [& O* z7 b7 |' W2 \value. In addition, the voltage reference input can be
& @  T8 V* O! a* N" _6 d& ]adjusted to allow encoding any smaller analog voltage span
to the full 8 bits of resolution.