Linear Technology DC1338B - LTC2990 | I²C Temperature, Current & Voltage Monitor(requires DC590) DC1338B DC1338B Ficha De Dados
Códigos do produto
DC1338B
LTC2990
1
2990fc
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Quad I
2
C Voltage, Current
and Temperature Monitor
The LTC
®
2990 is used to monitor system temperatures,
voltages and currents. Through the I
2
C serial interface,
the device can be confi gured to measure many combi-
nations of internal temperature, remote temperature,
remote voltage, remote current and internal V
nations of internal temperature, remote temperature,
remote voltage, remote current and internal V
CC
. The
internal 10ppm/°C reference minimizes the number of
supporting components and area required. Selectable
address and confi gurable functionality give the LTC2990
fl exibility to be incorporated in various systems needing
temperature, voltage or current data. The LTC2990 fi ts
well in systems needing sub-millivolt voltage resolution,
1% current measurement and 1°C temperature accuracy
or any combination of the three.
supporting components and area required. Selectable
address and confi gurable functionality give the LTC2990
fl exibility to be incorporated in various systems needing
temperature, voltage or current data. The LTC2990 fi ts
well in systems needing sub-millivolt voltage resolution,
1% current measurement and 1°C temperature accuracy
or any combination of the three.
Temperature Total Unadjusted Error
n
Temperature Measurement
n
Supply Voltage Monitoring
n
Current Measurement
n
Remote Data Acquisition
n
Environmental Monitoring
n
Measures Voltage, Current and Temperature
n
Measures Two Remote Diode Temperatures
n
±0.5°C Accuracy, 0.06°C Resolution (Typ)
n
±1°C Internal Temperature Sensor (Typ)
n
14-Bit ADC Measures Voltage/Current
n
3V to 5.5V Supply Operating Voltage
n
Four Selectable Addresses
n
Internal 10ppm/°C Voltage Reference
n
10-Lead MSOP Package
V
CC
V1
LTC2990
T
INTERNAL
R
SENSE
2.5V
5V
GND
SDA
SCL
ADR0
ADR1
SCL
ADR0
ADR1
MEASURES: TWO SUPPLY VOLTAGES,
SUPPLY CURRENT, INTERNAL AND
REMOTE TEMPERATURES
SUPPLY CURRENT, INTERNAL AND
REMOTE TEMPERATURES
V3
V4
V2
I
LOAD
T
REMOTE
2990 TA01a
Voltage, Current, Temperature Monitor
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and Easy
Drive is a trademark of Linear Technology Corporation. All other trademarks are the property of
their respective owners.
Drive is a trademark of Linear Technology Corporation. All other trademarks are the property of
their respective owners.
T
AMB
(°C)
–50
TUE (°C)
25
2990 TA01b
1.0
0
–25
0
50
–0.5
–1.0
0.5
75
100
125
T
REMOTE