Datasheet

TLC1549C, TLC1549I, TLC1549M
10-BIT ANALOG-TO-DIGITAL CONVERTERS
WITH SERIAL CONTROL
SLAS059C – DECEMBER 1992 – REVISED MARCH 1995
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
functional block diagram
Sample and
Hold
10-Bit
Analog-to-Digital
Converter
(switched capacitors)
Output
Data
Register
10-to-1 Data
Selector and
Driver
System Clock,
Control Logic,
and I/O
Counters
10
10
4
REF+ REF–
DATA OUT
ANALOG IN
31
6
7
5
I/O CLOCK
CS
2
Terminal numbers shown are for the D, JG, and P packages only.
typical equivalent inputs
INPUT CIRCUIT IMPEDANCE DURING SAMPLING MODE INPUT CIRCUIT IMPEDANCE DURING HOLD MODE
1 kΩ TYP
C
i
= 60 pF TYP
(equivalent input
capacitance)
5 MΩ TYP
ANALOG IN
ANALOG IN