TLC1549C, TLC1549I, TLC1549M
10-BIT ANALOG-TO-DIGITAL CONVERTERS
WITH SERIAL CONTROL
SLAS059C – DECEMBER 1992 – REVISED MARCH 1995
functional block diagram
REF +
1
REF –
3
10-Bit
Analog-to-Digital
Converter
(switched capacitors)
10
2
ANALOG IN
Sample and
Hold
Output
Data
Register
10
10-to-1 Data
Selector and
Driver
6
DATA OUT
4
System Clock,
Control Logic,
and I/O
Counters
7
I/O CLOCK
CS
5
Terminal numbers shown are for the D, JG, and P packages only.
typical equivalent inputs
INPUT CIRCUIT IMPEDANCE DURING SAMPLING MODE
1 kΩ TYP
ANALOG IN
Ci = 60 pF TYP
(equivalent input
capacitance)
ANALOG IN
5 MΩ TYP
INPUT CIRCUIT IMPEDANCE DURING HOLD MODE
2
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
TI [ TEXAS INSTRUMENTS ]
