MAX9951/MAX9952
Dual Per-Pin Parametric
Measurement Units
10 ______________________________________________________________________________________
Pin Description (continued)
MAX9952
FUNCTION
27 22 SCLK Serial-Clock Input. SCLK accepts external clock frequencies up to 20MHz.
28 21 CS Chip-Select Input. Force CS low to enable the serial interface.
29 20
INSELB
Input Select PMU-B. INSELB is a logic input that selects between IN0B and IN1B. Force
INSELB low to select IN0B. INSELB is OR’ed with control register bit INMODEB.
30 19 HI-ZB MSRB Tri-State Control Input. A logic-low places MSRB in a high-impedance state.
31 18
DUTHB
PMU-B Window Comparator Higher Comparator Output. A high output indicates that the
sensed voltage at the window comparator is below V
THMAXB
. DUTHB is an open-drain output.
32 17
DUTLB
PMU-B Window Comparator Lower Comparator Output. A high output indicates that the sensed
voltage at the window comparator is above V
THMINB
. DUTLB is an open-drain output.
33 16
EXTSELB
PMU-B External Current-Range Selector. Selects the external current range for PMU-B.
36 13 RBX
PMU-B Current-Range Sense-Resistor Connection. Connects to the external current-range
sense resistor for PMU-B.
37 12 RBE PMU-B Range E Setting Resistor Connection
38 11 RBD PMU-B Range D Setting Resistor Connection
39 10 RBC PMU-B Range C Setting Resistor Connection
40 9 RBB PMU-B Range B Setting Resistor Connection
41 8 RBA PMU-B Range A Setting Resistor Connection
42 7 RBAS PMU-B Range A Setting Resistor-Sense Connection
43 6
CCOMB
Common Connection of CMB and CXB for PMU-B
46 3 CCB
PMU-B Compensation Capacitor Connection. Provides compensation for the PMU-B main
amplifier. Connect a 120pF capacitor from CCB to CCOMB.
47 2
FORCEB
PMU-B Driver Output. Forces a current or voltage to the DUT for PMU-B.
48 1
SENSEB
PMU-B Sense Input. A Kelvin connection to the DUT. Provides the feedback signal in FVMI
mode and the measured signal in FIMV mode for PMU-B.
49 64
THMAXB
PMU-B Window Comparator Upper Threshold Voltage Input. Sets the upper voltage threshold
for the PMU-B window comparator.
50 63
THMINB
PMU-B Window Comparator Lower Threshold Voltage Input. Sets the lower voltage threshold for
the PMU-B window comparator.
51 62
CLHIB
PMU-B Upper-Clamp Voltage Input. Sets the upper-clamp voltage level.
52 61
CLLOB
PMU-B Lower-Clamp Voltage Input. Sets the lower-clamp voltage level.
53 60 IN0B
Force-Threshold Current Input for PMU-B. Sets the forced voltage in FV mode or the forced
current in FI mode.
54 59 IN1B
Force-Threshold Voltage Input for PMU-B. Sets the forced voltage in FV mode or the forced
current in FI mode
