AD5522_08 Datasheet, PDF (1/60 Pages) Analog Devices – Quad Parametric Measurement Unit with Integrated 16-Bit Level Setting DACs

Quad Parametric Measurement Unit with
Integrated 16-Bit Level Setting DACs
AD5522
FEATURES
Quad parametric measurement unit (PMU)
FV, FI, FN (high-Z), MV, MI functions
4 programmable current ranges (internal RSENSE)
±5 μA, ±20 μA, ±200 μA, and ±2 mA
1 programmable current range up to ±80 mA (external RSENSE)
22.5 V FV range with asymmetrical operation
Integrated 16-bit DACs provide programmable levels
Gain and offset correction on chip
Low capacitance outputs suited to relayless systems
On-chip comparators per channel
FI voltage clamps and FV current clamps
Guard drive amplifier
System PMU connections
Programmable temperature shutdown
SPI- and LVDS-compatible interfaces
Compact 80-lead TQFP with exposed pad (top or bottom)
APPLICATIONS
Automated test equipment (ATE)
Per-pin parametric measurement unit
Continuity and leakage testing
Device power supply
Instrumentation
Source measure unit (SMU)
Precision measurement
FUNCTIONAL BLOCK DIAGRAM
AGND
AVSS AVDD
DVCC DGND
CCOMP[0:3]
SYS_FORCE SYS_SENSE
VREF
REFGND
MEASOUT[0:3]
AGND
16
16
X1 REG
M REG
16
C REG _×2
X2 REG
16
16-BIT
CLH DAC
×2
OFFSET DAC
×4
CLH
EN
SW3
16
16
16
X1 REG
M REG
×6
16-BIT
16 _{FIN DAC}
X2 REG
–
FIN
+
AGND
SW1
+
FORCE
INTERNAL RANGE SELECT
(±5µA, ±20µA, ±200µA, ±2mA) ^{60Ω 1kΩ}
C REG
×6
16
16
X1 REG
16
M REG
C REG _×2
X2 REG
×2
16 ^16-BIT
CLL DAC
SW10
MEASVH
(Hi-Z)
AMPLIFIER
–
SW2
SW5 _RSENSE
SW4
SW6
4kΩ
CLL
VMID TO
CENTER
+
I RANGE
–
SW8
+
2kΩ _SW7
×5 or ×10
SW12
MEASOUT
MUX AND GAIN
×1/×0.2
TEMP
SENSOR
16
16
×6
×6
SW11
16
X1 REG
M REG
C REG
16 ^16-BIT
X2 REG ^{CPH DAC}
AGND
–
+
–
MEASURE
CURRENT
IN-AMP
+
–
+
16
16
×6
16
X1 REG
M REG
C REG
×6
16
16-BIT
CPL DAC
CPL
X2 REG
–+
CPH
–+
×1
–
MEASURE
VOLTAGE
DUTGND
+
–
SW9
4kΩ
SW13
SW14
SW16
GUARD AMP
SW15
COMPARATOR
IN-AMP
10kΩ
AGND
16-BIT
16 OFFSET
DAC
16
POWER-ON
RESET
TO ALL DAC
OUTPUT
AMPLIFIERS
SERIAL
INTERFACE
TO
MEASOUT
MUX
TEMP
SENSOR
CLAMP AND
GUARD
ALARM
EXTFOH[0:3]
CFF[0:3]
FOH[0:3]
EXTMEASIH[0:3]
EXTMEASIL[0:3]
EXTERNA L
R_SENSE
(CURRENTS
UP TO ±80mA)
MEASVH[0:3]
GUARD[0:3]
GUARDIN[0:3]/
DUTGND[0:3]
DUTGND
DUT
TMPALM
CGALM
RESET SDO SCLK SDI SYNC BUSY LOAD SPI/ CPOL0/ CPOH0/
LVDS SCLK SDI
CPOL1/ CPOH1/
SYNC SDO
Figure 1.
CPOL2/ CPOH2/ CPOL3/
CPO0 CPO1 CPO2
CPOH3/
CPO3
Rev. A
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