Datasheet

TLC1541
10-BIT ANALOG-TO-DIGITAL CONVERTER
WITH SERIAL CONTROL AND 11 INPUTS
SLAS073C – DECEMBER 1995 – REVISED AUGUST 1996
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
10-Bit Resolution A/D Converter
Microprocessor Peripheral or Standalone
Operation
On-Chip 12-Channel Analog Multiplexer
Built-In Self-Test Mode
Software-Controllable Sample-and-Hold
Function
Total Unadjusted Error...±1 LSB Max
Pinout and Control Signals Compatible
With TLC540 and TLC549 Families of 8-Bit
A/D Converters
CMOS Technology
PARAMETER VALUE
Channel Acquisition Sample Time
Conversion Time (Max)
Samples Per Second (Max)
Power Dissipation (Max)
5.5 µs
21 µs
32 × 10
3
6 mW
description
The TLC1541 is a CMOS A/D converter built
around a 10-bit switched-capacitor successive-
approximation A/D converter. The device is
designed for serial interface to a microprocessor
or peripheral using a 3-state output with up to four
control inputs (including independent SYSTEM
CLOCK, I/O CLOCK, chip select [CS
], and
ADDRESS INPUT). A 2.1-MHz system clock for
the TLC1541, with a design that includes
simultaneous read/write operation, allows high-
speed data transfers and sample rates up to
32 258 samples per second. In addition to the
high-speed converter and versatile control logic,
there is an on-chip, 12-channel analog multiplexer
that can be used to sample any one of 11 inputs
or an internal self-test voltage and a sample-and-
hold function that operates automatically.
AVAILABLE OPTIONS
PACKAGE
T
A
SMALL
OUTLINE
(DW)
PLASTIC CHIP
CARRIER
(FN)
PLASTIC
DIP
(N)
0°C to 70°C TLC1541CDW TLC1541CFN TLC1541CN
–40°C to 85°C TLC1541IDW TLC1541IFN TLC1541IN
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.
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INPUT A0
INPUT A1
INPUT A2
INPUT A3
INPUT A4
INPUT A5
INPUT A6
INPUT A7
INPUT A8
GND
V
CC
SYSTEM CLOCK
I/O CLOCK
ADDRESS INPUT
DATA OUT
CS
REF+
REF–
INPUT A10
INPUT A9
DW OR N PACKAGE
(TOP VIEW)
3 2 1 20 19
910111213
4
5
6
7
8
18
17
16
15
14
I/O CLOCK
ADDRESS INPUT
DATA OUT
CS
REF+
INPUT A3
INPUT A4
INPUT A5
INPUT A6
INPUT A7
FN PACKAGE
(TOP VIEW)
INPUT A2 INPUT A1 INPUT A0
INPUT A10
REF–
V SYSTEM CLOCK
INPUT A8
GND
INPUT A9
CC
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.
Copyright  1996, Texas Instruments Incorporated