HI-7152
HI-7152
+5V
V+ 28
OVR 27
D9 26
D8 25
D7 24
D6 23
D5 22
D4 21
1 GND
2 V-
-5V
+2.56V
0V
3
V
REF
4 AG
5 V
IN
ANALOG INPUT
V+
6 SET
7 BUSY
8 CLK
9 HOLD
10 WR
600kHz CLOCK
20
D3
D2 19
D1 18
11 CS
V+
12 RD
D0 17
13 SMODE
14 DG
HBE 16
BUS 15
TRACK N
HOLD N
TRACK N+1
HOLD N+1
TRACK N+2
N DATA
HOLD N+2
HOLD
INTERNAL
DATA
D0-D9, OVR
N-1 DATA
N+1 DATA
5µs
FIGURE 7. DMA MODE APPLICATION
ADDRESS BUS
DG
ADDRESS
DECODER
ADDRESS
DECODER
BUS
HBE
ANALOG
INPUTS
WR
V
IN
CS
RD
S1
S2
S3
S4
S5
S6
S7
S8
V+
V-
DG
V
REF
AG
V+
+2.56V
WR
HI-7152
ADC
(SLOW MEMORY MODE)
MICROPROCESSOR
DG528
MUX
SIGNAL
GROUND
SMOD
HOLD
BUSY
CLK
V+
+5V
-5V
RS
SYSTEM
RESET
V-
DG
600kHz
CLOCK
A0-A2, EN
SET
GND
V+
D0-D7
D8-D9, OVR
8-BIT DATA BUS
FIGURE 8. MULTI-CHANNEL DATA ACQUISITION SYSTEM
6-15
INTERSIL [ Intersil ]
