Datasheet Linear Technology LTC2990

Manufacturer	Linear Technology
Series	LTC2990

Quad I2C Voltage, Current and Temperature Monitor

Datasheets

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PDF, 304 Kb, Revision: E, File uploaded: Sep 25, 2017

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Prices

Packaging

	LTC2990CMS	LTC2990CMS#PBF	LTC2990CMS#TR	LTC2990CMS#TRPBF	LTC2990IMS	LTC2990IMS#PBF	LTC2990IMS#TR	LTC2990IMS#TRPBF
N	1	2	3	4	5	6	7	8
Package		MS-10 Package Outline Drawing		MS-10 Package Outline Drawing		MS-10 Package Outline Drawing		MS-10 Package Outline Drawing
Package Code		MS		MS		MS		MS
Package Index		05-08-1661		05-08-1661		05-08-1661		05-08-1661
Pin Count		10		10		10		10

Parametrics

Parameters / Models	LTC2990CMS#PBF	LTC2990CMS#TRPBF	LTC2990IMS#PBF	LTC2990IMS#TRPBF
ADC	14-Bit	14-Bit	14-Bit	14-Bit
Number of Channels	2	2	2	2
Demo Boards	DC1338B	DC1338B	DC1338B	DC1338B
Design Tools	Linduino File	Linduino File	Linduino File	Linduino File
Export Control	no	no	no	no
External Temp Sense Accuracy, В°C	1.5	1.5	1.5	1.5
I/O	Serial I2C	Serial I2C	Serial I2C	Serial I2C
Internal Temp Sense Accuracy, В°C	3	3	3	3
Isupply, mA	1.1	1.1	1.1	1.1
Monitors	External V, External I, External Temperature, Internal Vs, Internal Temperature	External V, External I, External Temperature, Internal Vs, Internal Temperature	External V, External I, External Temperature, Internal Vs, Internal Temperature	External V, External I, External Temperature, Internal Vs, Internal Temperature
Operating Temperature Range, °C	0 to 70	0 to 70	-40 to 85	-40 to 85
Output	Digital	Digital	Digital	Digital
Sensor Type	Diode, Internal	Diode, Internal	Diode, Internal	Diode, Internal
Supply Voltage Range	2.9V to 5.5V	2.9V to 5.5V	2.9V to 5.5V	2.9V to 5.5V

Eco Plan

	LTC2990CMS	LTC2990CMS#PBF	LTC2990CMS#TR	LTC2990CMS#TRPBF	LTC2990IMS	LTC2990IMS#PBF	LTC2990IMS#TR	LTC2990IMS#TRPBF
RoHS		Compliant		Compliant		Compliant		Compliant

Articles

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I2C System Monitor Combines Temperature, Voltage and Current Measurements for Single-IC System Monitoring &mdash LT Journal
PDF, 1.1 Mb, File published: Jan 18, 2011
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I2C System Monitor Combines Temperature, Voltage and
Current Measurements for Single-IC System Monitoring
David Schneider LTC2990 Features Measures Voltage, Current and Temperature Measures Two Remote Diode Temperatures В±1ВєC Accuracy, 0.06ВєC Resolution В±2ВєC Internal Temperature 15-Bit ADC Measures Voltage and Current 3V to 5.5V Supply Operating Voltage I2C Serial Interface with Four
Selectable Addresses Internal 10ppm Voltage Reference 10-Lead MSOP Package 22 | January 2011 : LT Journal of Analog Innovation 1.0 380
100ВµA
10ВµA 0.8 в€†VD
0.6 0.4
100 200 300 RSERIES = 0О©
RSERIES = 30О© 360
DIODE TEMPERATURE (K) DIODE VOLTAGE (V) The limit on the complexity
of large integrated circuits
is dominated by how much
power they can dissipate.
The trend in Вµprocessors
and FPGAs is toward
packing more features into
smaller ICs, run at ever-lower
voltages. The resulting rise
in power dissipation makes
it increasingly difficult to
monitor and control sources
of heat. Where it was once
suitable to have a single …
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Making Accurate Temperature Measurements with Devices with Different Ideality Factors &mdash LT Journal
PDF, 261 Kb, File published: Apr 19, 2017
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Making Accurate Temperature Measurements with Devices
with Different Ideality Factors
Hamza Salman Afzal and Shuilin Tian The ability to accurately measure temperature is critical
to the reliable operation of power systems. Accurate
temperature data can reveal the instantaneous health of a
system, and enable real-time protection functions such as
thermal shutdown. For instance, significant rates of change
in temperature can indicate increased power consumption.
If a proper temperature feedback loop is implemented, this
information can be used to reduce power consumption
before temperatures escalate to dangerous levels.
Perhaps the least expensive and most
ubiquitous temperature sensor is a diode.
A silicon p-n junction has a forward
drop of approximately 700mV and a
temperature coefficient of -2.2mV/C
at room temperature. This sensitivity
to temperature is exploited in many
systems as a means of measuring
temperature by simply biasing the diode
with a constant current and measuring
the resulting voltage (see Figure 1)
This method has achieved wide acceptance …

Model Line

Series: LTC2990 (8)

LTC2990CMS LTC2990CMS#PBF LTC2990CMS#TR LTC2990CMS#TRPBF LTC2990IMS LTC2990IMS#PBF LTC2990IMS#TR LTC2990IMS#TRPBF

Manufacturer's Classification

Signal Conditioning > Amplifiers > Current Sense Amplifiers
Monitor, Control and Protection > Power Monitors
Monitor, Control and Protection > Temperature Monitors > Digital Temperature Measurement Systems