MURATA-PS SHM

SHM-950
Miniture, High-Speed
±0.001% Sample-Hold Amplifiers
ADVANCED PRODUCT DATA
FEATURES
18 bit accuracy
Small 8-pin DIP package
800ns max. acquisition time to ±0.001%
200ns max. sample-to-hold settling time to ±0.001%
16MHz small signal bandwidth
90dB feedthrough attenuation
±25 picoseconds aperture uncertainty
415mW maximum power dissipation
GENERAL DESCRIPTION
Murata Power Solution’s SHM-950 is a high-speed, highly accurate
sample/hold designed for precision, high-speed analog signal processing applications. The SHM-950 features excellent dynamic specifications
including a maximum acquisition time of only 800 nanoseconds for a
10V step to ±0.001%.
Sample-to-hold settling time, to ±0.001% accuracy, is 200 nanoseconds maximum with an aperture uncertainty of ±25 picoseconds.
The SHM-950 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.
–15V
SUPPLY
5
INPUT/OUTPUT CONNECTIONS
Pin
1
2
3
4
5
6
7
8
Function
+5v Digital Supply
S/H Control
Analog Input
Analog Return
–15v Supply
Analog Output
+15v Analog Supply
Power Ground
+5V
SUPPLY
1
+15V
SUPPLY
7
2k7
100pF
2k7
ANALOG INPUT 3
6 ANALOG OUTPUT
SWITCH
DRIVER
S/H CONTROL 2
8
POWER
GROUND
4
ANALOG
RETURN
Figure 1. Functional Block Diagram
www.murata-ps.com
Technical enquiries email: [email protected], tel: +1 508 339 3000
MDC_SHM-950.B01 Page 1 of 3
SHM-950
Miniture, High-Speed
±0.001% Sample-Hold Amplifiers
Absolute Maximum Ratings
±15V Supply Voltages
+5V Supply Voltages
Analog Input
Digital Input
Output Current
±18V
–0.5V to +7V
±18V
–0.5V to +5.5V
±65 mA
Functional Specifications
(Apply over the operating temperature range with ±15V and +5V supplies
unless otherwise specified.)
ANALOG INPUT/OUTPUT
MIN.
TYP.
MAX.
UNITS
Input/Output Voltage Range
±15V Nominal Supply
±12V Nominal Supply
Input Impedance
Output Current
Output Impedance
Capacitive Load
DIGITAL INPUT
±10
±7
1.75
—
—
100
±11.5
±8.5
2
—
0.1
250
—
—
—
±40
—
—
Volts
Volts
k7
mA
7
pF
—
—
+5.0
+0.8
Volts
Volts
—
—
+5
–5
μA
μA
–1
±0.05
±0.001
±2
—
±0.5
±0.005
±7
V/V
%
%FS
mV
Input Logic Levels
Logic 1
+2.0
Logic 0
0
Loading
Logic 1
—
Logic 0
—
TRANSFER CHARACTERISTICS
—
—
—
—
MIN.
TYP.
MAX.
UNITS
+11.5
–11.5
+4.75
—
+15.0
–15.0
+5.0
±0.5
+15.5
–15.5
+5.25
±1
Volts
Volts
Volts
mV/V
—
—
—
—
+8
–8
+1
365
+13.5
–13.5
–1.5
415
mA
mA
Volts
mW
Operating Temp. Range, Case
SHM-950MC
SHM-950MM
Storage Temperature Range
Thermal Impedance
Qjc
Qca
Package Type
0 to +70°C
–55 to +125°C
–65 to +150°C
15°C/W
35°C/W
8-pin ceramic DIP
Footnotes:
~ Full Scale (FS) = 10V. Full Scale Range (FSR) = 20V.
 Sample-to-hold offset error (pedestal) is constant regardless of input/output level.
Ordering Information
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 ~
—
—
—
±2.5
±0.5
±3
±25
±15
±15
mV
ppm/°C
ppm of
FSR/°C
Sample-to-Hold Off.
(Pedestal) Drift
—
±5
±20
ppm of
FSR/°C
DYNAMIC CHARACTERISTICS
Acquisition Time
10V to ±0.001%FS (±1 mV)
+25°C
–55 to +125°C
10V to ±0.1%FS (±10 mV)
+25°C
–55 to +125°C
10V to ±1%FS (±100 mV)
1V to ±1%FS (±10 mV)
Sample-to-Hold Settling Time
10V to ±0.01%FS (±1 mV)
1V to ±1%FS (±10 mV)
Sample-to-Hold Transient
Aperture Delay Time
Aperture Uncertainty (Jitter)
Output Slew Rate
Output Droop
+25°C
0 to +70°C
–55 to +125°C
Feedthrough Rejection
POWER REQUIREMENTS
Voltage Range
+15V Supply
–15V Supply
+5V Supply
Power Supply Rejection Ratio
Quiescent Current Drain
+15V Analog Supply
–15V Supply
+5V Supply
Power Consumption
PHYSICAL/ENVIRONMENTAL
—
—
160
—
200
265
ns
ns
—
—
—
—
100
—
200
205
150
215
—
—
ns
ns
ns
ns
—
—
—
—
—
±40
100
100
100
10
±25
60
100
80
—
15
±50
—
ns
ns
mVp-p
ns
ps
V/μs
—
—
—
—
±0.5
±15
±1.2
–84
±15
±30
±2.4
–78
μV/μs
μV/μs
mV/μs
dB
www.murata-ps.com
MODEL
OPERATING TEMP. RANGE
SHM-950MC
0 to +70°C
SHM-950MM
–55 to +125°C
For availability of high-reliability versions of the SHM-950,
contact Murata Power Solutions.
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.
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. The maximum capacitive load to avoid oscillation is typically 250pF.
Recommended resistive load is 500Ω, although values as low as 250Ω
may be used. Acquisition and sample-to-hold settling times are relatively
unaffected by resistive loads down to 250Ω and capacitive loads up
to 50pF. Greater load capacitances will affect both acquisition and
settling time.
5. 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.
Technical enquiries email: [email protected], tel: +1 508 339 3000
MDC_SHM-950.B01 Page 2 of 3
SHM-950
Miniture, High-Speed
±0.001% Sample-Hold Amplifiers
NOTE: With a precision source, adjust R1 and R2 so that
the output of the SHM-950 in the hold mode matches the
source output.
Figure 2. Offset and Gain Adjustments
MECHANICAL DIMENSIONS Inches (mm)
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)
PIN 1
INDENTIFIER
SHM-950
0.300 MAX.
(7.62)
0.140 MAX.
(3.556)
0.09
(2.23)
0.035 ±0.010
(0.89)
0.200 MAX.
(5.08)
0.054
(1.372)
0.010 ±0.002
(0.254)
0.018 ±0.002
(0.457)
0.300 ±0.015
(7.620)
0.100 TYP.
(2.540)
0.300 ±0.005
(7.620)
ISO 9001
R E G I S T E R E D
USA:
Tucson (AZ), Tel: (800) 547 2537, email: [email protected]
Canada:
Toronto, Tel: (866) 740 1232, email: [email protected]
UK:
Milton Keynes, Tel: +44 (0)1908 615232, email: [email protected]
France:
Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: [email protected]
Germany: München, Tel: +49 (0)89-544334-0, email: [email protected]
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
ISO 9001 REGISTERED
email: [email protected]
3/13/08
Japan:
Tokyo, Tel: 3-3779-1031, email: [email protected]
Osaka, Tel: 6-6354-2025, email: [email protected]
Website: www.murata-ps.jp
China:
Shanghai, Tel: +86 215 027 3678, email: [email protected]
Guangzhou, Tel: +86 208 221 8066, email: [email protected]
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.
www.murata-ps.com
Technical enquiries email: [email protected], tel: +1 508 339 3000
MDC_SHM-950.B01 Page 3 of 3