DG444, DG445
Vishay Siliconix
APPLICATIONS
V
IN
+5V
V
L
+
-
+ 15 V
V+
V
OUT
Gain error is determined only by the resistor
tolerance. Op amp offset and CMRR will limit
accuracy of circuit.
GAIN
1
A
V
= 1
R
1
90 k
With SW
4
Closed:
V
OUT
V
IN
=
R
1
+ R
2
+ R
3
+ R
4
R
4
= 100
GAIN
2
A
V
= 10
R
2
5 k
GAIN
3
A
V
= 20
GAIN
4
A
V
= 100
R
3
4 k
R
4
1 k
DG444 or DG445
V-
GND
- 15 V
Figure 8. Precision-Weighted Resistor Programmable-Gain Amplifier
+5V
V
1
+ 15 V
Logic Input
Low = Sample
High = Hold
DG444
+ 15 V
- 15 V
-
V
IN
+
5M
5.1 M
30 pF
- 15 V
C
1
50 pF
V
2
J202
R
1
200 k
J500
+ 15 V
2N4400
V
OUT
J507
GND
C
2
1000 pF
Figure 9. Precision Sample-and-Hold
Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon
Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and
reliability data, see
www.vishay.com/ppg?70054.
www.vishay.com
8
Document Number: 70054
S11-0984-Rev. G, 23-May-11
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
VISHAY [ VISHAY TELEFUNKEN ]
