AD5522JSVD AD [Analog Devices], AD5522JSVD Datasheet - Page 26

• Manufacturer Part Number: AD5522JSVD
• Description: Quad Parametric Measurement Unit With Integrated 16-Bit Level Setting DACs
• Manufacturer: AD [Analog Devices]

AD5522
CIRCUIT OPERATION
FORCE VOLTAGE, FV
Most PMU measurements are performed while in force voltage
and measure current mode, for example, when the device is
used as a device power supply, or in continuity or leakage
testing. In the force voltage mode, the voltage forced is mapped
directly to the DUT. The voltage measure amplifier completes
the loop giving negative feedback to the forcing amplifier. See
Figure 24.
Where:
VFIN = Voltage of the FIN DAC, See V
MEASOUT
Forced Voltage at DUT = VFIN
x1/x0.2
OUT
OFFSET DAC
BIAS TO
CENTER
IRANGE
for DAC levels.
DAC
AGND
FIN
x5 or x10
Figure 24. Forcing voltage, measuring current
x1
+
-
+
-
+
-
Rev. PrM | Page 26 of 48
+
-
+
+
-
-
+
-
INTERNAL RANGE SELECT
(5uA, 20uA, 200uA, 2mA)
Rsense
10kΩ
Preliminary Technical Data
EXTMEASIH
DUTGND
MEASVH
EXTFOH
C FF
FOH
EXTMEASIL
DUT
Rsense
up to
(64mA)