DM2502CN National Semiconductor, DM2502CN Datasheet

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DM2502CN

Manufacturer Part Number
DM2502CN
Description
Successive Approximation Registers
Manufacturer
National Semiconductor
Datasheet
C 1995 National Semiconductor Corporation
DM2502 DM2503 DM2504 Successive Approximation
Registers
General Description
The DM2502 DM2503 and DM2504 are 8-bit and 12-bit
TTL registers designed for use in successive approximation
A D converters These devices contain all the logic and
control circuits necessary in combination with a D A con-
verter to perform successive approximation analog-to-digital
conversions
The DM2502 has 8 bits with serial capability and is not ex-
pandable The DM2503 has 8 bits and is expandable with-
out serial capability The DM2504 has 12 bits with serial
capability and expandability
All three devices are available in ceramic DIP ceramic flat-
pak and molded Epoxy-B DIPs The DM2502 DM2503 and
Logic Diagram
Connection Diagrams
Order Number DM2502W DM2502CW DM2503W
Order Number DM2502J DM2502CJ DM2503J
Order Number DM2502CN or DM2503CN
See NS Package W16A
See NS Package N16A
See NS Package J16A
DM2502 DM2503
or DM2503CW
or DM2503CJ
TL F 5702
(Dual-In-Line and Flat Packages)
DM2504 operate over
DM2503C and DM2504C operate over 0 C to
Features
Y
Y
Y
Y
Y
Y
Y
Complete logic for successive approximation A D con-
verters
8-bit and 12-bit registers
Capable of short cycle or expanded operation
Continuous or start-stop operation
Compatible with D A converters using any logic code
Active low or active high logic outputs
Use as general purpose serial-to-parallel converter or
ring counter
Order Number DM2504F or DM2504CJ
Order Number DM2504J or DM2504CJ
Order Number DM2504CN
See NS Package N24A
See NS Package F24D
See NS Package J24A
DM2504
b
55 C to
a
125 C the DM2502C
RRD-B30M115 Printed in U S A
November 1995
a
70 C
TL F 5702 – 1

Related parts for DM2502CN

DM2502CN Summary of contents

Page 1

... Logic Diagram Connection Diagrams (Dual-In-Line and Flat Packages) DM2502 DM2503 Order Number DM2502J DM2502CJ DM2503J or DM2503CJ See NS Package J16A Order Number DM2502CN or DM2503CN See NS Package N16A Order Number DM2502W DM2502CW DM2503W or DM2503CW See NS Package W16A C 1995 National Semiconductor Corporation TL F 5702 ...

Page 2

Absolute Maximum Ratings Supply Voltage Input Voltage Output Voltage Storage Temperature Range Lead Temperature (Soldering 10 seconds) Electrical Characteristics (Notes 2 and 3) V Parameter Logical ‘‘1’’ Input Voltage ( Logical ‘‘1’’ Input ...

Page 3

Application Information OPERATION The registers consist of a set of master latches that act as the control elements in the device and change state on the input clock high-to-low transition and a set of slave latches that hold the register ...

Page 4

Application Information (Continued) SHORT CYCLE If all bits are not required the register may be truncated and conversion time saved by using a register output going low rather then the Q signal to indicate the end of conversion CC If ...

Page 5

Typical Applications (Continued) Fast Precision Analog-to-Digital Converter Switching Time Waveforms INPUT RANGES Unipolar Bipolar Equiv Connect DAC Z OUT Input ...

Page 6

Physical Dimensions inches (millimeters) Order Number DM2504F or DM2504CF Order Number DM2502J DM2502CJ DM2503J or DM2503CJ NS Package Number F24D NS Package Number J16A 6 ...

Page 7

Physical Dimensions inches (millimeters) (Continued) Order Number DM2504J or DM2504CJ Order Number DM2502CM or DM2503CN NS Package Number J24A NS Package Number N16A 7 ...

Page 8

... Hong Kong Ltd 49) 0-180-530 85 86 13th Floor Straight Block a Ocean Centre 5 Canton Rd 49) 0-180-530 85 85 Tsimshatsui Kowloon a Tel ( 49) 0-180-532 78 32 Hong Kong a 49) 0-180-532 93 58 Tel (852) 2737-1600 a Tel ( 49) 0-180-534 16 80 Fax (852) 2736-9960 a National Semiconductor Japan Ltd Tel 81-043-299-2309 Fax 81-043-299-2408 ...

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