AD5522JSVD AD [Analog Devices], AD5522JSVD Datasheet - Page 14

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

AD5522
32
35
36
37
38
66, 65, 64,
63
68
70
71
72
75
76
77
78
3, 18, 43, 58
2, 19, 42, 59
80, 21, 40,
61
6, 15, 46, 55
4, 17, 44, 57
5, 16, 45, 56
9, 12, 49, 52
73
7, 14 , 47, 54
8, 13, 48, 53
49
46
45
44
43
15, 16, 17,
18
13
11
10
9
6
5
4
3
78, 63, 38,
23
79, 62, 39,
22
1, 60, 41,
20
75, 66, 35,
26
77, 64, 37,
24
76, 65, 36,
25
72, 69, 32,
29
8
74, 67, 34,
27
73, 68, 33,
28
SDO
CPOL2/CPO0
CPOH2/CPO1
CPOL3/CPO2
CPOH3/CPO3
MEASOUT(0-3)
SYS_FORCE
SYS_SENSE
REFGND
VREF
SPI/LVDS
CGALM
TMPALM
RESET
C
C
EXTFOH(0-3)
FOH(0-3)
EXTMEASIH(0-3)
EXTMEASIL(0-3)
MEASVH(0-3)
DUTGND
GUARD (0-3)
GUARDIN(0-3)
/DUTGND(0-3)
COMP
FF
(0-3)
(0-3)
Serial data out, for readback and diagnostic purposes
Comparator output Low, comparator window in LVDS interface mode
Comparator output Low, comparator window in LVDS interface mode
Comparator output Low, comparator window in LVDS interface mode
Comparator output Low, comparator window in LVDS interface mode
Multiplexed DUT voltage/Current sense output/temperature sensor voltage per channel,
referenced to AGND.
External FORCE signal input, enables connection of system PMU.
External SENSE signal output, enables connection of system PMU.
Accurate analog reference input ground.
Reference Input for DAC channels, 5V for specified performance.
Interface select pin. Logic low selects SPI interface compatible mode, logic high selects
LVDS interface mode. In LVDS mode the CPOH(0-3) pins default to differential interface
pins.
CGALM is an open drain pin providing shared Alarm information for Guard amplifier and
Clamp circuitry.
By default, this output pin is disabled. The System Control Register allows user to enable
this function and to set the open drain output as a latched output, or to configure either
the Guard or Clamp function or both flagging the alarm pin.
When this pin flags an alarm, the origins of the alarm may be determined by reading back
the Alarm Status Register. Two flags per channel in this word (one latched, one unlatched)
indicate which function caused the alarm and if the alarm is still present.
The function of this pin is to flag a Temperature Alarm. It is a latched active low open drain
output indicating the junction temperature has exceeded either the programmed or
default (130degC) temperature setting.
Two flags in the Alarm Status Register (one latched, one unlatched) indicate if the
temperature has dropped below 130degC or still above. User action is required to clear this
latched alarm flag, by writing to the “CLEAR” bit in any of the PMU registers.
Active low, level sensitive input used to reset all internal nodes on the device to their
power-on reset value.
Compensation capacitor Input per channel. See section on compensation capacitors..
External capacitor optimizing the stability performance of the force amplifier (per
channel).. See section on Compensation Capacitors
Per channel, Force output for high current range. Use external resistor here for current
range up to 64mA.
Per channel force output for all other ranges.
Per channel sense input (high sense) for high current range.
Per channel sense input (Low sense) for high current range.
Per channel DUT voltage sense input (high sense)
DUT voltage sense input (low sense). By default, DUTGND is shared between all four PMU
channels. If user requires a DUTGND input per channel, the GUARDIN (0-3)/DUTGND(0-3)
pin may be configured to be a DUTGND input per each PMU channel.
Guard output drive.
This pin has dual functionality; it may be either a Guard input per channel or DUTGND per
channel.
Its function is determined via the serial interface. The power on default is GUARDIN, where
it functions as the input to the Guard Amplifier.
Alternatively, it may be configured to be used as a DUTGND input per channel.
In this case, the input to the Guard amplifier is internally connected to MEASVH and the
GUARDIN
Amplifier
/DUTGND pin is used as a DUTGND input per channel. See section on Guard
Rev. PrM | Page 14 of 48
Preliminary Technical Data