LTC2991IMS#PBF Linear Technology, LTC2991IMS#PBF Datasheet - Page 8

• Manufacturer Part Number: LTC2991IMS#PBF
• Manufacturer: Linear Technology

Specifications of LTC2991IMS#PBF

• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Pin Count: 16
• Mounting: Surface Mount
• Package Type: MSOP
• Case Height: 0.86mm
• Screening Level: Industrial
• Lead Free Status / Rohs Status: Compliant

PIN FUNCTIONS
LTC2991
V1 (Pin 1): First Monitor Input. This pin can be configured
as a single-ended input (0V to 4.9V) or the positive input
for a differential or remote diode temperature measurement
(in combination with V2). Differential common mode range
is 0V to V
remote diode temperature, this pin will source a current.
V2 (Pin 2): Second Monitor Input. This pin can be config-
ured as a single-ended input (0V to 4.9V) or the negative
input for a differential or remote diode temperature mea-
surement (in combination with V1). Differential common
mode range is 0V to V
configured for remote diode temperature, this pin will have
an internal termination, while the measurement is active.
V3 (Pin 3): Third Monitor Input. This pin can be configured
as a single-ended input (0V to 4.9V) or the positive input
for a differential or remote diode temperature measurement
(in combination with V4). Differential common mode range
is 0V to V
remote diode temperature, this pin will source a current.
V4 (Pin 4): Fourth Monitor Input. This pin can be configured
as a single-ended input (0V to 4.9V) or the negative input
for a differential or remote diode temperature measurement
(in combination with V3). Differential common mode range
is 0V to V
remote diode temperature, this pin will have an internal
termination, while the measurement is active.
V5 (Pin 5): Fifth Monitor Input. This pin can be configured
as a single-ended input (0V to 4.9V) or the positive input
for a differential or remote diode temperature measurement
(in combination with V6). Differential common mode range
is 0V to V
remote diode temperature, this pin will source a current.
V6 (Pin 6): Sixth Monitor Input. This pin can be configured
as a single-ended input (0V to 4.9V) or the negative input
for a differential or remote diode temperature measurement
(in combination with V5). Differential common mode range
is 0V to V
remote diode temperature, this pin will have an internal
termination, while the measurement is active.
8
CC
CC
CC
CC
CC
, ±300mV differential. When configured for
, ±300mV differential. When configured for
, ±300mV differential. When configured for
, ±300mV differential. When configured for
, ±300mV differential. When configured for
CC
, ±300mV differential. When
V7 (Pin 7): Seventh Monitor Input. This pin can be
configured as a single-ended input (0V to 4.9V) or the
positive input for a differential or remote diode tempera-
ture measurement (in combination with V8). Differential
common mode range is 0V to V
When configured for remote diode temperature, this pin
will source a current.
V8 (Pin 8): Eighth Monitor Input. This pin can be configured
as a single-ended input (0V to 4.9V) or the negative input
for a differential or remote diode temperature measurement
(in combination with V7). Differential common mode range
is 0V to V
remote diode temperature, this pin will have an internal
termination, while the measurement is active.
GND (Pin 9): Device Ground. Connect this pin through a
low impedance connection to system ground.
SDA (Pin 10): Serial Bus Data Input and Output. In the
transmitter mode (read), the conversion result is output
through the SDA pin, while in the receiver mode (write),
the device configuration bits are input through the SDA
pin. At data input mode, the pin is high impedance; while
at data output mode, it is an open-drain N-channel driver
and, therefore, an external pull-up resistor or current
source to V
SCL (Pin 11): Serial Bus Clock Input of the I
The LTC2991 can only act as a slave and the SCL pin
only accepts external serial clock. The LTC2991 does not
implement clock stretching.
PWM (Pin 12): PWM Output. The PWM pin provides a
CMOS output level with a duty cycle proportional to the
remote diode temperature of the sensor connected to
pins V7 and V8.
ADR0, ADR1, ADR2 (Pins 13, 14, 15): Serial Bus Address
Control Input. The ADR pins are address control bits for
the device I
V
noise supply. A 0.1μF decoupling capacitor to GND is
required for this pin.
CC
(Pin 16): Chip Power. Connect to 2.9V to 5.5V low
CC
CC
2
, ±300mV differential. When configured for
C address. See Table 1.
is needed.
CC
, ±300mV differential.
2
C Interface.
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