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 process-
ing 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 preci-
sion MOS hold capacitor and a MOSFET switching configuration which
results in faster switching and better feedthrough attenuation. Addition-
ally, 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
www.murata-ps.com
Technical enquiries
email: sales@murata-ps.com, tel:
+1 508 339 3000
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 +70°C
–55 to +125°C
–65 to +150°C
15°C/W
35°C/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,
+25°C
Linearity Error
Sample Mode Offset ,
+25°C
Sample-to-Hold Offset
(Pedestal),
+25°C
Gain Drift
Sample Mode Offset Drift
Sample-to-Hold Off.
(Pedestal) Drift
DYNAMIC CHARACTERISTICS
Acquisition Time
2V to ±0.005%FS (±100μV)
+25°C
–55 to +125°C
2V to ±0.01%FS (±200μV)
+25°C
–55 to +125°C
2V to ±0.1%FS (±2mV)
Sample-to-Hold Settling Time
2V to ±0.005%FS (±100μV)
2V to ±0.01%FS (±200μV)
Sample-to-Hold Transient
Aperture Delay Time
Aperture Uncertainty (Jitter)
Output Slew Rate
Small Signal BW (–3dB)
Output Droop
+25°C
0 to +70°C
–55 to +125°C
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
μA
μA
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 +70°C
–55 to +125°C
0 to +70°C
–55 to +125°C
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/μs
MHz
μV/nS
μV/nS
μV/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 0.1μF to 4.7μF 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 cir-
cuitry 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.
www.murata-ps.com
Technical enquiries
email: sales@murata-ps.com, tel:
+1 508 339 3000
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
R E G I S T E R E D
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.
© 2008 Murata Power Solutions, Inc.
France:
Japan:
China:
Germany:
München, 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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