SMP18FRU Analog Devices Inc, SMP18FRU Datasheet

SMP18FRU

Manufacturer Part Number
SMP18FRU
Description
Manufacturer
Analog Devices Inc
Datasheet

Specifications of SMP18FRU

Power Supply Requirement
Single/Dual
Lead Free Status / RoHS Status
Not Compliant
a
GENERAL DESCRIPTION
The SMP18 is a monolithic octal sample-and-hold; it has eight
internal buffer amplifiers, input multiplexer, and internal hold
capacitors. It is manufactured in an advanced oxide isolated
CMOS technology to obtain high accuracy, low droop rate, and
fast acquisition time. The SMP18 has a typical linearity error of
only 0.01% and can accurately acquire a 10-bit input signal to
swing includes the negative supply in both single and dual sup-
ply operation.
The SMP18 was specifically designed for systems that use a
calibration cycle to adjust a multiple of system parameters. The
low cost and high level of integration make the SMP18 ideal for
calibration requirements that have previously required an ASIC,
or high cost multiple D/A converters.
The SMP18 is also ideally suited for a wide variety of sample-
and-hold applications including amplifier offset or VCA gain ad-
justments. One or more SMP18s can be used with single or
multiple DACs to provide multiple set points within a system.
REV. C
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
1/2 LSB in less than 2.5 microseconds. The SMP18’s output
FEATURES
High Speed Version of SMP08
Internal Hold Capacitors
Low Droop Rate
TTL/CMOS Compatible Logic Inputs
Single or Dual Supply Operation
Break-Before-Make Channel Addressing
Compatible With CD4051 Pinout
Low Cost
APPLICATIONS
Multiple Path Timing Deskew for A.T.E.
Memory Programmers
Mass Flow/Process Control Systems
Multichannel Data Acquisition Systems
Robotics and Control Systems
Medical and Analytical Instrumentation
Event Analysis
Stage Lighting Control
The SMP18 offers significant cost and size reduction over
discrete designs. It is available in a 16-pin plastic DIP, a
narrow body SO-16 surface-mount SOIC package or the thin
TSSOP-16 package. The SMP18 is a higher speed direct
replacement for the SMP08.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
HOLD CAPS
(INTERNAL)
SMP18
INPUT
3
FUNCTIONAL BLOCK DIAGRAM
SW
(LSB)
11
Octal Sample-and-Hold
A
SW
with Multiplexed Input
1 OF 8 DECODER
SW
10
B
SW
World Wide Web Site: http://www.analog.com
(MSB)
SW
C
9
SW
SW
INH
6
SW
© Analog Devices, Inc., 1996
SMP18
16
13
14
15
12
8
1
5
2
4
7
DGND
V
CH
CH
CH
CH
CH
CH
CH
CH
V
DD
SS
0
1
2
3
4
5
6
7
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT

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SMP18FRU Summary of contents

Page 1

FEATURES High Speed Version of SMP08 Internal Hold Capacitors Low Droop Rate TTL/CMOS Compatible Logic Inputs Single or Dual Supply Operation Break-Before-Make Channel Addressing Compatible With CD4051 Pinout Low Cost APPLICATIONS Multiple Path Timing Deskew for A.T.E. Memory Programmers ...

Page 2

SMP18–SPECIFICATIONS ELECTRICAL CHARACTERISTICS P arameter Symbol Linearity Error Buffer Offset Voltage V OS Hold Step V HS Droop Rate V Output Source Current I SOURCE Output Sink Current I SINK Output Voltage Range LOGIC CHARACTERISTICS Logic Input High Voltage V ...

Page 3

... Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. REV Units JC 33 C/W 27 C/W Temperature 35 C/W Model Range is specified for device SMP18FP JA SMP18FRU SMP18FS –3– SMP18 PIN CONNECTIONS CH OUT OUT OUT 6 2 INPUT 3 CH OUT 14 ...

Page 4

SMP18 –Typical Performance Characteristics 100 V = +12V + 10k L 0 0.1 0.01 –40 – 100 TEMPERATURE – C Droop Rate vs. ...

Page 5

V = +12V DD – + – 10k L –3 –4 –5 –6 –7 –8 –55 –35 – 105 125 TEMPERATURE – C Offset ...

Page 6

SMP18 R2 10k 10k APPLICATIONS INFORMATION The SMP18, a multiplexed octal S/H, minimizes board space in systems requiring cycled calibration or an array of control voltages. When used in conjunction with a low cost 16-bit D/A, the SMP18 can easily ...

Page 7

APPLICATION TIPS All unused digital inputs should be connected to logic LOW. For analog inputs that may become temporarily disconnected, a resistor analog ground should be used with value ranging from 200 ...

Page 8

SMP18 0.210 (5.33) 0.160 (4.06) 0.115 (2.93) 0.006 (0.15) 0.002 (0.05) SEATING OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 16-Pin Plastic DIP (N-16) 0.840 (21.33) 0.745 (18.93 0.280 (7.11) 0.240 (6.10 0.060 (1.52) PIN 1 ...

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