Rainbow-electronics MAX1618 Bedienungsanleitung PDF herunterladen (Seite 4)

-40

1 100

TEMPERATURE ERROR

vs. LEAKAGE RESISTANCE

-20

-30

-10

MAX1618 toc01

LEAKAGE RESISTANCE (MΩ)

TEMPERATURE ERROR (°C)

PATH = DXP TO GND AND CONFIG = H00

PATH = DXP TO GND AND CONFIG = H08

PATH = DXP TO V

(5.0V)

AND CONFIG = H08

PATH = DXP TO V

(5.0V)

AND CONFIG = H00

-8

-5

-6

-7

-4

-3

-2

-1

0.005 0.05 0.5 5 50

TEMPERATURE ERROR vs.

POWER-SUPPLY NOISE FREQUENCY

MAX1618 toc03

POWER-SUPPLY NOISE FREQUENCY (MHz)

TEMPERATURE ERROR (°C)

= SQUARE WAVE APPLIED TO

WITH NO 0.1µF V

CAPACITOR

= 100mVp

= 250mVp

Typical Operating Characteristics

= +25°C, unless otherwise noted.)

-1.00

0.00

-0.50

1.00

0.50

2.00

1.50

2.50

-55 -15 5-35 25 45 65 85 105 125

TEMPERATURE ERROR

vs. REMOTE-DIODE TEMPERATURE

MAX1618 toc02

TEMPERATURE (°C)

TEMPERATURE ERROR (°C)

CENTRAL CMPT3904

RANDOM SAMPLE

MAX1618

Remote Temperature Sensor

with SMBus Serial Interface

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

= +3.3V, configuration byte register = X8h, T

= -55°C to +125°C, unless otherwise noted.) (Note 5)

Note 1: Guaranteed, but not 100% tested.

Note 2: A remote diode is any diode-connected transistor from Table 7. T

is the junction temperature of the remote diode. See

Remote Diode Selection for remote-diode forward voltage requirements. Temperature specification guaranteed for a diode

with ideality factor (M

= 1.013). Additional error = (1.013/M - 1)

273 + Temp where M = Ideality of remote diode used.

Note 3: The SMBus logic block is a static design that works with clock frequencies down to DC. While slow operation is possible, it

violates the 10kHz minimum clock frequency and SMBus specifications and may monopolize the bus.

Note 4: Note that a transition must internally provide at least a hold time to bridge the undefined region (300ns max) of SMBCLK’s

falling edge.

Note 5: Specifications from -55°C to +125°C are guaranteed by design, not production tested.

CONDITIONS UNITSMIN TYP MAXPARAMETER

= 3.0V 2.2

STBY, SMBCLK, SMBDATA

Input High Voltage

2.4

ALERT forced to 0.4V

mA1

ALERT Output Low Sink Current

= 5.5V

= 3.0V to 5.5V 0.8

STBY, SMBCLK, SMBDATA

Input Low Voltage

Logic inputs forced to V

or GND -2 2

STBY, SMBCLK, SMBDATA

Input Current

µA

SMBCLK, SMBDATA forced to 0.6V 6

SMBCLK, SMBDATA Output

Low Sink Current

ALERT forced to 5.5V

µA1

ALERT Output High Leakage

Current

SMBus INTERFACE

1 2 3 4 5 6 7 8 9 ... 17 18

Remote Temperature Sensor 1

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