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AD5522JSVD Datasheet(PDF) 26 Page - Analog Devices

No. de pieza AD5522JSVD
Descripción Electrónicos  Quad Parametric Measurement Unit With Integrated 16-Bit Level Setting DACs
PDF  48 Pages
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Fabricante Electrónico  AD [Analog Devices]
Página de inicio  http://www.analog.com
Logo AD - Analog Devices

AD5522JSVD Datasheet(HTML) 26 Page - Analog Devices

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AD5522
Preliminary Technical Data
Rev. PrM | Page 26 of 48
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.
Forced Voltage at DUT = VFIN
Where:
VFIN = Voltage of the FIN DAC, See VOUT for DAC levels.
DUTGND
MEASVH
DUT
Rsense
up to
(64mA)
EXTMEASIH
EXTMEASIL
FOH
EXTFOH
CFF
FIN
+
-
INTERNAL RANGE SELECT
(5uA, 20uA, 200uA, 2mA)
Rsense
DAC
-
-
-
-
-
-
+
+
+
+
+
+
x5 or x10
x1
AGND
MEASOUT
x1/x0.2
10k
Ω
OFFSET DAC
BIAS TO
CENTER
IRANGE
Figure 24. Forcing voltage, measuring current



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