Dual Per-Pin Parametric

Measurement Units

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9

Pin Description

PIN

MAX9951 MAX9952

NAME

FUNCTION

148

SENSEA

PMU-A Sense Input. A Kelvin connection to the DUT. Provides the feedback signal in FVMI

mode and the measured signal in FIMV mode for PMU-A.

247

FORCEA

PMU-A Driver Output. Forces a current or voltage to the DUT for PMU-A.

3

46

CCA

PMU-A Compensation Capacitor Connection. Provides compensation for the PMU-A main

amplifier. Connect a 120pF capacitor from CCA to CCOMA.

5, 15,

34, 44

5, 15,

34, 44

Negative Analog-Supply Input

4, 14,

35, 45

4, 14,

35, 45

Positive Analog-Supply Input

643

CCOMA

Common Connection of CMA and CXA for PMU-A

7

42

RAAS

PMU-A Range Setting Resistor-Sense Connection

8

41

RAA

PMU-A Range A Setting Resistor Connection

9

40

RAB

PMU-A Range B Setting Resistor Connection

10

39

RAC

PMU-A Range C Setting Resistor Connection

11

38

RAD

PMU-A Range D Setting Resistor Connection

12

37

RAE

PMU-A Range E Setting Resistor Connection

13

36

RAX

PMU-A Current-Range Sense-Resistor Connection. Connects to the external current range

sense resistor for PMU-A.

16

33

EXTSELA

PMU-A External Current-Range Selector. Selects the external current range for PMU-A.

17

32

DUTLA

PMU-A Window Comparator Lower Comparator Output. A high output indicates that the sensed

18

31

DUTHA

PMU-A Window Comparator Higher Comparator Output. A high output indicates that the

19

30

HI-ZA

MSRA Tri-State Control Input. A logic-low places MSRA in a high-impedance state.

20

29

INSELA

Input Select PMU-A. INSELA is a logic input that selects between IN0A and IN1A. Force

INSELA low to select IN0A. INSELA is OR’ed with control register bit INMODEA.

21

28

TEMP

22

27

DGND

Digital Ground

23

26

24

25

DOUT

Serial-Data Output. A standard SPI™-compatible output. Data appears at DOUT MSB first.

25

24

DIN

Serial-Data Input. Load data into DIN MSB first.

26

23

LOAD

Serial-Port Load Input. A logic-low asynchronously loads data from the input registers into the

PMU registers.

SPI is a trademark of Motorola, Inc.