8-Bit, Microprocessor-Compatible, A/D Converters! W( x) Q7 U' R" N4 P2 O( ]7 @5 x
The ADC0802 family are CMOS 8-Bit, successive-approximation # p6 a, |: C* h5 [! ]A/D converters which use a modified potentiometric - q* Y G/ f7 ]2 R! V5 K8 sladder and are designed to operate with the 8080A control2 T' B5 w% P) e6 p
bus via three-state outputs. These converters appear to the H R* P8 H/ D6 J8 J Zprocessor as memory locations or I/O ports, and hence no$ ~" x2 @$ I* B( s- u
interfacing logic is required. 7 R0 {7 r% O* eThe differential analog voltage input has good commonmode-8 l/ `. V9 a! [- x& N; q) G
rejection and permits offsetting the analog zero-inputvoltage 0 H3 L0 T0 ]# D& Qvalue. In addition, the voltage reference input can be. n% @% O' F l
adjusted to allow encoding any smaller analog voltage span# d( l$ u4 K, M0 I
to the full 8 bits of resolution. 8 |& R2 o% X# A3 J( \4 ?