SHM-950 Datasheet, PDF (1/3 Pages) List of Unclassifed Manufacturers – Miniature, High-Speed ±0.001% Sample-Hold Amplifiers

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IN N O VAT IO N a n d E X C E L L E N C E
SHM-950
Miniature, High-Speed
±0.001% Sample-Hold Amplifiers
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
DATEL’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.
INPUT/OUTPUT CONNECTIONS
PIN FUNCTION
1 +5V SUPPLY
2 S/H CONTROL
3 ANALOG INPUT
4 ANALOG RETURN
5 –15V SUPPLY
6 ANALOG OUTPUT
7 +15V SUPPLY
8 POWER GROUND
ANALOG INPUT 3
–15V
SUPPLY
5
2kΩ
+15V
SUPPLY
7
+5V
SUPPLY
1
2kΩ
100pF
6 ANALOG OUTPUT
S/H CONTROL 2
SWITCH
DRIVER
8
POWER
GROUND
4
ANALOG
RETURN
Figure 1. SHM-950 Functional Block Diagram