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SHM-50
Miniature, High-Speed, Complete 0.05% Sample Hold Amplifiers
FEATURES
Small 8-pin DIP or SMT package 30ns typical acquisition time to 0.01%, 40ns typical acquisition time to 0.005% 15ns typical sample-to-hold settling time to 0.01% 100MHz small signal bandwidth -78dB feedthrough attenuation 2 picoseconds aperture uncertainty 85mW typical, 135mW maximum power dissipation GENERAL DESCRIPTION Murata Power Solution's SHM-50 is a high-speed, highly accurate sample/hold designed for precision, high-speed analog signal processing applications. The SHM-50 features excellent dynamic specifications including a maximum acquisition time of only 40 nanoseconds for a 2V step to 0.01%. Sample-to-hold settling time, to 0.01% accuracy, is 20 nanoseconds maximum with an aperture uncertainty of 2 picoseconds. The SHM-50 is a complete sample/hold circuit, containing a precision MOS hold capacitor and a MOSFET switching configuration which results in faster switching and better feedthrough attenuation. Additionally, a FET input amplifier design allows faster acquisition and settling times while maintaining a considerably lower droop rate.
+5V ANALOG SUPPLY 7 1k
INPUT/OUTPUT CONNECTIONS Pin 1 2 3 4 5 6 7 8 Function +5v Digital Supply S/H Control Analog Input Analog Return -5v Supply Analog Output +5v Analog Supply Power Ground
-5V SUPPLY 5
+5V DIGITAL SUPPLY 1
1k ANALOG INPUT 3 6 ANALOG OUTPUT
S/H CONTROL 2
SWITCH DRIVER
For full details go to www.murata-ps.com/rohs
8 POWER GROUND
4 ANALOG RETURN
Figure 1. Functional Block Diagram
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MDC_SHM-50.B03 Page 1 of 3
SHM-50
Miniature, High-Speed, Complete 0.05% Sample Hold Amplifiers
Absolute Maximum Ratings
5V Supply Voltages Analog Input Digital Input Output Current 6.6V 4V -0.5V to +5.5V 65 mA POWER REQUIREMENTS MIN. Voltage Range +5V Supply +4.75 -5V Supply -4.75 Power Supply Rejection Ratio -- Quiescent Current Drain +5V Analog Supply -- -5V Supply -- Power Consumption -- PHYSICAL/ENVIRONMENTAL Operating Temp. Range, Case SHM-50MC SHM-50MM Storage Temperature Range Thermal Impedance jc ca Package Type TYP. +5.0 -5.0 0.5 +7 -10 85 MAX. +5.25 -5.25 1 +12 -15 135 UNITS Volts Volts mV/V mA mA mW
Functional Specifications Apply over the operating temperature range with 5Vdc unless otherwise specified.
ANALOG INPUT/OUTPUT Input/Output Voltage Range Input Impedance Output Current Output Impedance Capacitive Load DIGITAL INPUT MIN. -3.5 -- -- -- 100 TYP. -- 1000 -- 0.1 250 MAX. +3.5 -- 65 -- -- UNITS Volts mA pF
0 to +70C -55 to +125C -65 to +150C 15C/W 35C/W 8-pin ceramic DIP or SMT
Input Logic Levels Logic 1 +2.0 Logic 0 0 Loading Logic 1 -- Logic 0 -- TRANSFER CHARACTERISTICS Gain Gain Error, +25C Linearity Error Sample Mode Offset , +25C Sample-to-Hold Offset (Pedestal), +25C Gain Drift Sample Mode Offset Drift Sample-to-Hold Off. (Pedestal) Drift DYNAMIC CHARACTERISTICS Acquisition Time 2V to 0.005%FS (100V) +25C -55 to +125C 2V to 0.01%FS (200V) +25C -55 to +125C 2V to 0.1%FS (2mV) Sample-to-Hold Settling Time 2V to 0.005%FS (100V) 2V to 0.01%FS (200V) Sample-to-Hold Transient Aperture Delay Time Aperture Uncertainty (Jitter) Output Slew Rate Small Signal BW (-3dB) Output Droop +25C 0 to +70C -55 to +125C Feedthrough Rejection -- -- -- -- -- -- --
-- -- -- -- -1 0.05 0.0035 2 30 1 3
+5.0 +0.8 +5 -5 -- 0.25 0.005 7 60 15 15
Volts Volts A A V/V % %FS mV mV ppm/C ppm of FSR/C ppm of FSR/C
Footnotes: Full Scale (FS) = 2V. Full Scale Range (FSR) = 4V. Sample-to-hold offset error (pedestal) is constant regardless of input/output level.
Ordering Information
MODEL SHM-50MC SHM-50MM SHM-50GC SHM-50GM OPERATING TEMP. RANGE 0 to +70C -55 to +125C 0 to +70C -55 to +125C PACKAGE DIP DIP SMT SMT
--
5
20
For availability of high-reliability versions of the SHM-50, contact Murata Power Solutions.
-- -- -- -- -- -- -- -- -- -- 600 90 -- -- -- --
40 70 30 40 25 15 10 100 2 2 650 100 0.2 0.3 5.0 -78
50 TBD 40 50 30 25 20 -- 4 4 -- -- 1.0 1.0 12.0 --
ns ns ns ns ns ns ns mVp-p ns ps V/s MHz V/nS V/nS V/nS dB
TECHNICAL NOTES 1. All ground pins should be tied together and connected to system analog ground as close to the package as possible. It is recommended to use a ground plane under the device and solder ground pins directly to it. Take care to ensure that no ground potentials can exist between ground pins. A single +5V supply can be used for both +5V Digital Supply (pin 1) and +5V Analog Supply (pin 7). 2. External 0.1F to 4.7F tantalum bypass capacitors are required in critical applications. 3. A logic 1 on S/H puts the unit in the sample mode. A logic 0 puts the unit in hold mode. 4. Gain and offset adjusting can be accomplished using the external circuitry shown in Figure 2. Adjust offset with a 0V input. Adjust gain with a FS input. Adjust so that the output in the hold mode matches the input.
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MDC_SHM-50.B03 Page 2 of 3
SHM-50
Miniature, High-Speed, Complete 0.05% Sample Hold Amplifiers
ANALOG INPUT (GAIN ADJUST) R1 1k , 0.1% 50 TO SHM-50 PIN 3 5.11k HIGH-SPEED FAST-SETTLING AMPLIFIER 1k , 0.1%
3M
-15V
+15V
R2 (OFFSET ADJUST)
Figure 2. Offset and Gain Adjustments
MECHANICAL DIMENSIONS Inches (mm) DIP Package
0.405 MAX. (10.287) Dimension Tolerances (unless otherwise indicated): 2 place decimal (.XX) 0.001 (0.25) 3 place decimal (.XXX) 0.005 (0.127) 0.300 MAX. (7.62) 0.140 MAX. (3.556) 0.09 (2.23) 0.035 0.010 (0.89)
0.400 (10.16) SHM-50
SMT Package
SHM-50 PIN 1
0.018 (0.097)
0.300 (7.62)
0.14 (3.55)
0.200 MAX. (5.08) 0.054 (1.372) 0.018 0.002 (0.457) 0.100 TYP. (2.540) 0.300 0.005 (7.620)
0.010 0.002 (0.254)
0.05 (1.27) 0.300 (7.62) 0.100 TYP. (2.54)
0.070 TYP. (1.78) 0.46 (11.68)
0.300 0.015 (7.620)
0.050 (1.27)
ISO 9001
REGISTERED
USA: Canada: UK:
Mansfield (MA), Tel: (508) 339 3000, email: sales@murata-ps.com Toronto, Tel: (866) 740 1232, email: toronto@murata-ps.com Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com
Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356
www.murata-ps.com email: sales@murata-ps.com ISO 9001 & ISO 14001 REGISTERED 10/14/08
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. (c) 2008 Murata Power Solutions, Inc.
France: Japan: China:
Germany: Munchen, Tel: +49 (0)89-544334-0, email: ped.munich@murata-ps.com
Singapore: Parkway Centre, Tel: +65 6348 9096, email: singapore@murata-ps.com
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_SHM-50.B03 Page 3 of 3

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