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TLV1543C, TLV1543I, TLV1543M
3.3V 10BIT ANALOGTODIGITAL CONVERTERS
WITH SERIAL CONTROL AND 11 ANALOG INPUTS
SLAS072E DECEMBER 1992 REVISED JANUARY 2004
2
WWW.TI.COM
functional block diagram
14-Channel
Analog
Multiplexer
Sample and
Hold
10-Bit
Analog-to-Digital
Converter
(switched capacitors)
Self-Test
Reference
Output
Data
Register
10-to-1 Data
Selector and
Driver
System Clock,
Control Logic,
and I/O
Counters
Input Address
Register
4
10
4
REF +
REF
DATA
OUT
ADDRESS
I/O CLOCK
CS
3
EOC
1
2
3
4
5
6
7
8
9
11
12
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
14
13
16
19
17
18
15
typical equivalent inputs
INPUT CIRCUIT IMPEDANCE DURING SAMPLING MODE
INPUT CIRCUIT IMPEDANCE DURING HOLD MODE
1 k
TYP
Ci = 60 pF MAX
(equivalent input
capacitance)
5 M
TYP
A0 A10