DG300B Datasheet, PDF (9/9 Pages) Vishay Siliconix – CMOS Analog Switches

DG300B/301B/302B/303B
Vishay Siliconix
+15 V
–15 V
+15 V
CMOS Logic
Input Select
High = Diff. IN B
Diff. IN A
Diff. IN B
+15 V
–15 V
+
–
R₂
75 kW
R₄
75 kW
R₆
75 kW
DG302B
CMOS Logic
Gain Select
High = A_V = 101
R₁
16 kW
Ri₁
1.5 kW
DG301B
GND
R₂
75 kW
Voltage gain of the instrumentation amplifier is:
A_V = 1 +
2R_{2 (In the circuit shown, AV1 = 10.4, AV2 = 101)}
R₁
V_OUT
R₅
75 kW
+15 V
R₇
67 kW
V_OSNULL
50 kW
–15 V
FIGURE 6. Low Power Instrumentation Amplifier with Digitally Selectable Inputs and Gain
Document Number: 71402
S-02968—Rev. A, 22-Jan-01
www.vishay.com
9