ISL28617VY25EV1Z Datasheet, PDF (12/19 Pages) Intersil Corporation – 40V Precision Instrumentation Amplifier with Differential ADC Driver

ISL28617
INPUT
STAGE
FEEDBACK
STAGE
OUTPUT
STAGE
V_CC
0.1µF
IN-
500Ω
I1
I2
I3
I4
A5
I1, I3 +
I2, I4
A6
-
IN+
500Ω
+
-A1
Q1 Q2
+
A2-
100µA
+
-A3
Q3 Q4
+
A4
-
100µA
V_EE
0.1µF
+R_IN
+R_INSENSE
I_S1 I_S2
I_S3 I_S4
R_IN
-R_IN
+R_FB
R_FB
-R_FB
GND
-R_INSENSE -R_FBSENSE
GAIN RESISTORS AND
+R_FBSENSE
KELVIN CONNECTIONS
V_CO
0.1µF
+V_OUT
-V_OUT
V_FB-
V_FB+
V_CMO
V_EO
0.1µF
FIGURE 31. ISL28617 FUNCTIONAL BLOCK DIAGRAM
12
FN6562.1
October 17, 2013