MDC_SHM-49.B02 Page 1 of 3

www.murata-ps.com

SHM-49

Miniature, High-Speed

, Complete

±0.05% Sample Hold Amplifiers

GENERAL DESCRIPTION

Murata Power Solution’s SHM-49 is a high-speed, highly accurate

sample/hold designed for precision, high-speed analog signal process-

ing applications. The SHM-49 features excellent dynamic specifications

including a maximum acquisition time of only 200 nanoseconds for a

10V step to ±0.01%.

Sample-to-hold settling time, to ±0.01% accuracy, is 100 nanoseconds

maximum with an aperture uncertainty of ±2 picoseconds.

The SHM-49 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.

INPUT/OUTPUT CONNECTIONS

Pin

Function

1

+5v Digital Supply

2

S/H Control

3

Analog Input

4

Analog Return

5

–15v Supply

6

Analog Output

7

+15v Analog Supply

8

Power Ground

–15V

SUPPLY

+15V

SUPPLY

3

2

POWER

GROUND

SWITCH

DRIVER

6 ANALOG OUTPUT

2k

ANALOG INPUT

S/H CONTROL

4

8

+5V

SUPPLY

ANALOG

RETURN

51

7

2k

100pF

Figure 1. Functional Block Diagram

FEATURES

Small 8-pin DIP or SMT package

200ns max. acquisition time to ±0.01%

100ns max. sample-to-hold settling time to ±0.01%

16MHz small signal bandwidth

74dB feedthrough attenuation

±25 picoseconds aperture uncertainty

415mW maximum power dissipation