General Information; Product Description; Block Diagram - ZiLOG Z80-AIO Hardware User Manual

SECTION 1;

1.1 Product Description

The Z80-AIO is a 12-bit analog input/output card,
compatible with the Z80 Microcoinputer Board Series.
The analog to digital portion can accept 16 differential
or 32 single-ended channels with input voltages ranging
The digital to analog portion provides two, 12-bit D/A
Converters with double buffering to minimize output
switching transients.
for bipolar or unipolar Operation with Output voltages
ranging
scale.
CPU and may operate in a polling or interrupt mode.
addressing may be changed by on-board jumper selections.

Block Diagram

K
Y
4
CONTROL r
\ INFS

GENERAL INFORMATION

The Output voltage is selectable
from (+/-) 2.5V füll scale to (+/-) 10V füll
This analog systera is interfaced äs I/O to the
ADDR CNTL &
DECODE
TIMING
3)
D
Z
r r 1 1
/
12 BIT
A/D
CONV
N
DATA
BUS
INT
CHAN STB
STROBE
1 i
SAMPLE & HOLD
AMPLIFIED
STB (A)^
— •
STB (B)
I/O
ANALOG
MUX
INSTRU
AMPLIF
ER
12 BIT
D/A
CONV
ANALOG
OUTPUTS
12 BIT
D/A
CONV
Y