TLC1549C, TLC1549I, TLC1549M
10-BIT ANALOG-TO-DIGITAL CONVERTERS
WITH SERIAL CONTROL
SLAS059C – DECEMBER 1992 – REVISED MARCH 1995
D, JG, OR P PACKAGE
(TOP VIEW)
10-Bit-Resolution A/D Converter
Inherent Sample and Hold
Total Unadjusted Error . . . ±1 LSB Max
On-Chip System Clock
REF+
ANALOG IN
REF–
V
CC
1
2
3
4
8
7
6
5
I/O CLOCK
DATA OUT
CS
Terminal Compatible With TLC549 and
TLV1549
GND
CMOS Technology
FK PACKAGE
(TOP VIEW)
description
The TLC1549C, TLC1549I, and TLC1549M
are 10-bit, switched-capacitor, successive-
3
2 1 20 19
NC
NC
approximation
analog-to-digital
converters.
18
17
16
15
14
4
I/O CLOCK
NC
ANALOG IN
NC
These devices have two digital inputs and a
3-state output [chip select(CS), input-outputclock
(I/O CLOCK), and data output (DATA OUT)] that
provide a three-wire interface to the serial port of
a host processor.
5
6
7
8
DATA OUT
NC
REF–
NC
9 10 11 12 13
The sample-and-hold function is automatic. The
converter incorporated in these devices features
differential high-impedance reference inputs that
facilitate ratiometric conversion, scaling, and
isolation of analog circuitry from logic and supply
noise. A switched-capacitor design allows low-
error conversion over the full operating free-air
temperature range.
NC – No internal connection
The TLC1549C is characterized for operation from 0°C to 70°C. The TLC1549I is characterized for operation
from –40°C to 85°C. The TLC1549M is characterized for operation over the full military temperature range of
–55°C to 125°C.
AVAILABLE OPTIONS
PACKAGE
T
A
SMALL OUTLINE
(D)
CHIP CARRIER
(FK)
CERAMIC DIP
(JG)
PLASTIC DIP
(P)
0°C to 70°C
–40°C to 85°C
–55°C to 125°C
TLC1549CD
TLC1549ID
—
—
—
—
—
TLC1549CP
TLC1549IP
—
TLC1549MFK
TLC1549MJG
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright 1995, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TI [ TEXAS INSTRUMENTS ]
