MAX9949DCCB(2009) データシートの表示（PDF） - Maxim Integrated
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MAX9949DCCB Datasheet PDF : 23 Pages
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Dual Per-Pin Parametric Measurement Units
Pin Description
PIN
NAME
MAX9950 MAX9949
FUNCTION
1, 16,
33, 48
1, 16,
33, 48
VEE Negative Analog Supply Input
2, 15,
34, 47
3
4
5
6
7
8
9
2, 15,
34, 47
14
13
12
11
10
9
8
VCC Positive Analog Supply Input
PMU-B Range-Setting-Resistor Common Connection. Connect to one end of all the range-
RBCOM setting resistors (RB_) for PMU-B. Also serves as the input to an external current-range buffer
for PMU-B.
RBE PMU-B Range E Resistor Connection
RBD PMU-B Range D Resistor Connection
RBC PMU-B Range C Resistor Connection
RBB PMU-B Range B Resistor Connection
RBA PMU-B Range A Resistor Connection
FORCEB PMU-B Driver Output. Forces a current or voltage to the DUT for PMU-B.
10
7
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.
11
6
CC1B PMU-B Compensation Capacitor Connection 1. Provides compensation for the PMU-B main
amplifier.
12
5
CC2B
PMU-B Compensation Capacitor Connection 2. Provides compensation for the PMU-B main
amplifier.
13
4
RXDB
PMU-B Current-Range Sense-Resistor Connection. Connects to the external current-range
sense resistor on the DUT side for PMU-B. See Figure 5.
14
3
RXAB
PMU-B Current-Range Sense-Resistor Connection. Connects to the external current-range
sense resistor on the amplifier side for PMU-B. See Figure 5.
17
64
CS Chip-Select Input. Force CS low to enable communication with the serial port.
18
63
LOAD Serial Port Load Input. A logic low asynchronously loads data from the input registers into the
PMU registers.
19
62
SCLK Serial Clock Input
20
61
DIN Serial Data Input. Data loads into DIN MSB first.
21
60
DUTHB
PMU-B Window-Comparator High-Comparator Output. A sense-B voltage above the VTHMAXB
level forces the DUTHB output low. DUTHB is an open-drain output.
22
59
DUTLB
PMU-B Window-Comparator Low-Comparator Output. A sense-B voltage below the VTHMINB
level forces the DUTLB output low. DUTLB is an open-drain output.
23
24, 27
58
54, 57
EXTBSEL PMU-B External Current-Range Selector. Selects the external current range for PMU-B.
DGND Digital Ground
25
56
DOUT Serial Data Output. Provides data out from the shift register. Facilitates daisy-chaining to DIN
of a downstream PMU. DOUT clocks out data MSB first.
26
55
VL Logic Supply Voltage Input. The voltage applied at VL sets the upper logic-voltage level.
28
53
EXTASEL PMU-A External Current-Range Selector. Selects the external current range for PMU-A.
29
52
DUTLA
PMU-A Window-Comparator Low-Comparator Output. A sense-A voltage below the VTHMINA
level forces the DUTLA output low. DUTLA is an open-drain output.
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