ISO807 Datasheet, PDF (12/12 Pages) Burr-Brown (TI) – Isolated 16-Bit Sampling ANALOG-TO-DIGITAL CONVERTER

200Ω
V_IN
39.8kΩ
66.5kΩ
+5V
100Ω
9.9kΩ
+2.5V
200Ω
39.8kΩ
33.2kΩ
100Ω
V_IN
9.9kΩ
+2.5V
200Ω
V_IN
33.2kΩ
100Ω
39.8kΩ
9.9kΩ
+2.5V
20kΩ
40kΩ
CDAC (High Impedance)
(0.3125V to 2.8125V)
+2.5V
20kΩ
40kΩ
CDAC (High Impedance)
(0.3125V to 2.8125V)
+2.5V
20kΩ
40kΩ
CDAC (High Impedance)
(0.3125V to 2.8125V)
+2.5V
FIGURE 5. Circuit Diagrams Showing External and Internal Resistors.
CAP
(Pin 15)
Z_CAP
Buffer
REF
(Pin 16)
Z_REF
CDAC
Internal
Reference
Z_CAP (Ω)
Z_REF (Ω)
PWRD 0
REFD 0
1
6k
PWRD 0
REFD 1
1
100M
PWRD 1
REFD 0
200
6k
PWRD 1
REFD 1
200
100M
FIGURE 6. Characteristic Impedances of Internal Buffer.
®
ISO807
12