TLV1549C, TLV1549I, TLV1549M
10-BIT ANALOG-TO-DIGITAL CONVERTERS
WITH SERIAL CONTROL
SLAS071C – JANUARY 1993 – REVISED MARCH 1995
D, JG, OR P PACKAGE
(TOP VIEW)
3.3-V Supply Operation
10-Bit-Resolution Analog-to-Digital
Converter (ADC)
REF+
ANALOG IN
REF–
V
CC
1
2
3
4
8
7
6
5
Inherent Sample and Hold Function
Total Unadjusted Error . . . ±1 LSB Max
On-Chip System Clock
I/O CLOCK
DATA OUT
CS
GND
Terminal Compatible With TLC1549 and
TLC1549x
FK PACKAGE
(TOP VIEW)
†
Application Report Available
CMOS Technology
description
3
2 1 20 19
NC
NC
4
18
17
16
15
14
The TLV1549C, TLV1549I, and TLV1549M are
10-bit, switched-capacitor, successive-
I/O CLOCK
NC
ANALOG IN
5
6
7
8
NC
REF–
NC
approximation, analog-to-digital converters. The
devices have two digital inputs and a 3-state
output [chip select (CS), input-output clock (I/O
CLOCK), and data output (DATA OUT)] that
provide a three-wire interface to the serial port of
a host processor.
DATA OUT
NC
9 10 11 12 13
The sample-and-hold function is automatic. The
converter incorporated in the device 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 TLV1549C is characterized for operation from 0°C to 70°C. The TLV1549I is characterized for operation
from –40°C to 85°C. The TLV1549M 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
TLV1549CD
TLV1549ID
—
—
—
—
—
TLV1549CP
TLV1549IP
—
TLV1549MFK
TLV1549MJG
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.
†
Interfacing the TLV1549 10-Bit Serial-Out ADC to Popular 3.3-V Microcontrollers (SLAA005)
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
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