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Analog Devices - CMOS Quad Sample-and-Hold Amplifier

Numéro de référence SMP04EQ
Description CMOS Quad Sample-and-Hold Amplifier
Fabricant Analog Devices 
Logo Analog Devices 





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FEATURES
Four Independent Sample-and-Holds
Internal Hold Capacitors
High Accuracy: 12 Bit
Very Low Droop Rate: 2 mV/s typ
Output Buffers Stable for CL 500 pF
TTL/CMOS Compatible Logic Inputs
Single or Dual Supply Applications
Monolithic Low Power CMOS Design
APPLICATIONS
Signal Processing Systems
Multichannel Data Acquisition Systems
Automatic Test Equipment
Medical and Analytical Instrumentation
Event Analysis
DAC Deglitching
CMOS Quad
Sample-and-Hold Amplifier
SMP04*
FUNCTIONAL BLOCK DIAGRAM
VDD
SMP04
VIN1
S/H1
VIN2
S/H2
VIN3
S/H3
VIN4
S/H4
VSS
VSS
VSS
VSS
VOUT1
VOUT2
VOUT3
VOUT4
DGND
VSS
GENERAL DESCRIPTION
The SMP04 is a monolithic quad sample-and-hold; it has four
internal precision buffer amplifiers and internal hold capacitors.
It is manufactured in ADI’s advanced oxide isolated CMOS
technology to obtain the high accuracy, low droop rate and fast
acquisition time required by data acquisition and signal process-
ing systems. The device can acquire an 8-bit input signal to
± 1/2 LSB in less than four microseconds. The SMP04 can
operate from single or dual power supplies with TTL/CMOS
logic compatibility. Its output swing includes the negative supply.
The SMP04 is ideally suited for a wide variety of sample-and-
hold applications, including amplifier offset or VCA gain adjust-
ments. One or more can be used with single or multiple DACs
to provide multiple setpoints within a system.
The SMP04 offers significant cost and size reduction over
equivalent module or discrete designs. It is available in a
16-lead hermetic or plastic DIP and surface mount SOIC
packages. It is specified over the extended industrial tem-
perature range of –40°C to +85°C.
*Protected by U.S. Patent No. 4,739,281.
REV. D
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 1998

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