Quad Parametric Measurement Unit with Integrated 16-Bit Level Setting DACs Data Sheet AD5522 FEATURES APPLICATIONS Quad parametric measurement unit (PMU) Automated test equipment (ATE) FV, FI, FN (high-Z), MV, MI functions Per-pin parametric measurement unit 4 programmable current ranges (internal R ) Continuity and leakage testing SENSE 5 A, 20 A, 200 A, and 2 mA Device power supply 1 programmable current range up to 80 mA (external R ) Instrumentation SENSE 22.5 V FV range with asymmetrical operation Source measure unit (SMU) Integrated 16-bit DACs provide programmable levels Precision measurement 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) FUNCTIONAL BLOCK DIAGRAM DVCC DGND CCOMP 0:3 SYS FORCE AGND AVSS AVDD SYS SENSE EN EXTFOH 0:3 VREF 16-BIT 4 16 16 CLH DAC X1 REG CLH CFF 0:3 X2 REG SW3 16 M REG REFGND 2 16 C REG 2 OFFSET DAC INTERNAL RANGE SELECT 16 60 FIN 1k (5A, 20A, 200A, 2mA) 16 6 SW1 16-BIT 16 + X1 REG 16 FIN DAC + AGND FOH 0:3 M REG X2 REG FORCE C REG MEASVH AMPLIFIER 6 SW5 (Hi-Z) R SENSE SW2 4k SW6 SW4 16-BIT 16 16 X1 REG CLL DAC CLL EXTMEASIH 0:3 X2 REG 16 VMID TO M REG 2 + 16 CENTER EXTERNAL SW8 SW10 C REG 2 I RANGE R SENSE 2k SW7 (CURRENTS + 5 or 10 UP TO 80mA) EXTMEASIL 0:3 MEASOUT + MUX AND GAIN MEASOUT 0:3 SW9 1/0.2 4k SW12 TEMP MEASURE SENSOR CURRENT AGND 16 SW11 IN-AMP MEASVH 0:3 6 16 6 + 16 X1 REG 16-BIT 16 GUARD 0:3 M REG CPH DAC X2 REG SW13 AGND DUT C REG + GUARDIN 0:3 / SW16 1 GUARD AMP DUTGND 0:3 16 DUTGND CPH 6 + 16 6 SW14 CPL 16-BIT DUTGND X1 REG 16 16 CPL DAC M REG X2 REG MEASURE + + SW15 C REG VOLTAGE IN-AMP COMPARATOR 10k AGND 16-BIT TO ALL DAC TO 16 OFFSET OUTPUT TEMP MEASOUT DAC AMPLIFIERS SENSOR TMPALM MUX 16 SERIAL CLAMP AND POWER-ON INTERFACE GUARD CGALM RESET ALARM RESET SDO SCLK SDI SYNC BUSY LOAD SPI/ CPOL0/ CPOH0/ CPOL1/ CPOH1/ CPOL2/ CPOH2/ CPOL3/ CPOH3/ LVDS SCLK SDI SYNC SDO CPO0 CPO1 CPO2 CPO3 Figure 1. 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Technical Support www.analog.com 06197-001AD5522 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Calibration................................................................................... 38 Applications ....................................................................................... 1 Additional Calibration ............................................................... 39 Functional Block Diagram .............................................................. 1 System Level Calibration ........................................................... 39 Revision History ............................................................................... 3 Circuit Operation ........................................................................... 40 General Description ......................................................................... 4 Force Voltage (FV) Mode .......................................................... 40 Specifications ..................................................................................... 6 Force Current (FI) Mode ........................................................... 41 Timing Characteristics .............................................................. 11 Serial Interface ................................................................................ 42 Absolute Maximum Ratings .......................................................... 15 SPI Interface ................................................................................ 42 Thermal Resistance .................................................................... 15 LVDS Interface............................................................................ 42 ESD Caution ................................................................................ 15 Serial Interface Write Mode ...................................................... 42 Pin Configurations and Function Descriptions ......................... 16 RESET Function ......................................................................... 42 Typical Performance Characteristics ........................................... 22 BUSY LOAD and Functions ..................................................... 42 Terminology .................................................................................... 29 Register Update Rates ................................................................ 44 Theory of Operation ...................................................................... 30 Register Selection ....................................................................... 44 Force Amplifier ........................................................................... 30 Write System Control Register ................................................. 46 Comparators ................................................................................ 30 Write PMU Register ................................................................... 48 Clamps ......................................................................................... 30 Write DAC Register ................................................................... 50 Current Range Selection ............................................................ 31 Read Registers ............................................................................. 53 High Current Ranges ................................................................. 31 Readback of System Control Register...................................... 54 Measure Current Gains.............................................................. 32 Readback of PMU Register ....................................................... 55 VMID Voltage ............................................................................. 32 Readback of Comparator Status Register ................................ 56 Choosing Power Supply Rails ................................................... 33 Readback of Alarm Status Register .......................................... 56 Measure Output (MEASOUTx Pins)....................................... 33 Readback of DAC Register ........................................................ 57 Device Under Test Ground (DUTGND)................................. 33 Applications Information .............................................................. 58 Guard Amplifier ......................................................................... 34 Power-On Default ...................................................................... 58 Compensation Capacitors ......................................................... 34 Setting Up the Device on Power-On ....................................... 58 System Force and Sense Switches ............................................. 35 Changing Modes ........................................................................ 59 Temperature Sensor ................................................................... 35 Required External Components ............................................... 59 DAC Levels ...................................................................................... 36 Power Supply Decoupling ......................................................... 60 Offset DAC .................................................................................. 36 Power Supply Sequencing ......................................................... 60 Gain and Offset Registers .......................................................... 36 Typical Application for the AD5522 ........................................ 60 Cached X2 Registers ................................................................... 37 Outline Dimensions ....................................................................... 62 Reference Voltage (VREF) ......................................................... 37 Ordering Guide .......................................................................... 63 Reference Selection .................................................................... 37 Rev. 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