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TLC1551 Datasheet Preview

TLC1551 Datasheet

10-Bit Analog-to-Digital Converters

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TLC1550I, TLC1550M, TLC1551I
10ĆBIT ANALOGĆTOĆDIGITAL CONVERTERS
WITH PARALLEL OUTPUTS
SLAS043G − MAY 1991 − REVISED NOVEMBER 2003
D Power Dissipation . . . 40 mW Max
D Advanced LinEPICSingle-Poly Process
Provides Close Capacitor Matching for
Better Accuracy
D Fast Parallel Processing for DSP and µP
Interface
D Either External or Internal Clock Can Be
Used
D Conversion Time . . . 6 µs
D Total Unadjusted Error . . . ±1 LSB Max
D CMOS Technology
description
The TLC1550x and TLC1551 are data acquisition
analog-to-digital converters (ADCs) using a 10-bit,
switched-capacitor, successive-approximation net-
work. A high-speed, 3-state parallel port directly
interfaces to a digital signal processor (DSP) or
microprocessor (µP) system data bus. D0 through
D9 are the digital output terminals with D0 being
the least significant bit (LSB). Separate power
terminals for the analog and digital portions
minimize noise pickup in the supply leads.
Additionally, the digital power is divided into two
parts to separate the lower current logic from the
higher current bus drivers. An external clock can be
applied to CLKIN to override the internal system
clock if desired.
The TLC1550I and TLC1551I are characterized for
operation from − 40°C to 85°C. The TLC1550M is
characterized over the full military range of − 55°C
to 125°C.
J† OR DW PACKAGE
(TOP VIEW)
REF+ 1
REF − 2
ANLG GND 3
AIN 4
ANLG VDD 5
DGTL GND1 6
DGTL GND2 7
DGTL VDD1 8
DGTL VDD2 9
EOC 10
D0 11
D1 12
24 RD
23 WR
22 CLKIN
21 CS
20 D9
19 D8
18 D7
17 D6
16 D5
15 D4
14 D3
13 D2
Refer to the mechanical data for the JW
package.
FK OR FN PACKAGE
(TOP VIEW)
AIN
ANLG VDD
DGTL GND1
NC
DGTL GND2
DGTL VDD1
DGTL VDD2
4 3 2 1 28 27 26
5
25 CS
6
24 D9
7
23 D8
8
22 NC
9
21 D7
10
20 D6
11
19 D5
12 13 14 15 16 17 18
NC − No internal connection
TA
CERAMIC CHIP CARRIER
(FK)
−40°C to 85°C
−55°C to 125°C
TLC1550MFK
AVAILABLE OPTIONS
PACKAGE
PLASTIC CHIP CARRIER
(FN)
TLC1550IFN
TLC1551IFN
CERAMIC DIP
(J)
TLC1550MJ
SOIC
(DW)
TLC1550IDW
TLC1551IDW
This device contains circuits to protect its inputs and outputs against damage due to high static voltages or electrostatic fields. These
circuits have been qualified to protect this device against electrostatic discharges (ESD) of up to 2 kV according to MIL-STD-883C,
Method 3015; however, it is advised that precautions be taken to avoid application of any voltage higher than maximum-rated
voltages to these high-impedance circuits. During storage or handling, the device leads should be shorted together or the device
should be placed in conductive foam. In a circuit, unused inputs should always be connected to an appropriated logic voltage level,
preferably either VCC or ground.
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.
Advanced LinEPIC is a trademark of Texas Instruments.
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 2003, Texas Instruments Incorporated
On products compliant to MILĆPRFĆ38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
1




etcTI

TLC1551 Datasheet Preview

TLC1551 Datasheet

10-Bit Analog-to-Digital Converters

No Preview Available !

TLC1550I, TLC1550M, TLC1551I
10ĆBIT ANALOGĆTOĆDIGITAL CONVERTERS
WITH PARALLEL OUTPUTS
SLAS043G − MAY 1991 − REVISED NOVEMBER 2003
functional block diagram
CS
Control
WR
Logic
RD
DGTL
VDD1
100 k
NOM
Frequency
Divided by 2
Internal
Clock
CLKIN
REF +
REF −
AIN
Clock Detector
typical equivalent inputs
INPUT CIRCUIT IMPEDANCE DURING SAMPLING MODE
1 kTYP
AIN
Ci = 60 pF TYP
(equivalent input
capacitance)
Successive-
Approximation
Register
10
10-Bit
Capacitor
DAC and S/H
EOC
10
D0 −D9
Comp
INPUT CIRCUIT IMPEDANCE DURING HOLD MODE
AIN
5 MTYP
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265


Part Number TLC1551
Description 10-Bit Analog-to-Digital Converters
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