Rainbow-electronics MAX6681 Bedienungsanleitung PDF herunterladen (Seite 4)

MAX6680/MAX6681

±1°C Fail-Safe Remote/Local Temperature

Sensors with SMBus Interface

4 _______________________________________________________________________________________

Typical Operating Characteristics

= +25°C, unless otherwise noted.)

MAX6680/81 toc01

SUPPLY VOLTAGE (V)

STANDBY SUPPLY CURRENT (µA)

5.04.54.03.5

3.0 5.5

STANDBY SUPPLY CURRENT

vs. SUPPLY VOLTAGE

MAX6680/81 toc02

CONVERSION RATE (Hz)

OPERATING SUPPLY CURRENT (µA)

8.0000

4.0000

2.0000

1.0000

0.5000

0.2500

0.1250

100

200

300

400

500

600

0.0625

AVERAGE OPERATING SUPPLY CURRENT

vs. CONVERSION RATE

8Hz IS 1

RESOLUTION

MAX6680/81 toc03

TEMPERATURE (

TEMPERATURE ERROR (°C)

1251007550250-25

-2

-1

-3

-50 150

TEMPERATURE ERROR

vs. REMOTE-DIODE TEMPERATURE

MAX6680/81 toc04

TEMPERATURE (

TEMPERATURE ERROR (°C)

100500

-2

-1

-3

-50 150

LOCAL TEMPERATURE ERROR

vs. DIE TEMPERATURE

MAX6680/81 toc05

FREQUENCY (Hz)

TEMPERATURE ERROR (°C)

1M10k100

0.2

0.4

0.6

0.8

1.0

1.2

-0.2

110M100k1k10 100M

TEMPERATURE ERROR

vs. POWER-SUPPLY NOISE FREQUENCY

= 100mV SQUARE WAVE

APPLIED TO V

WITH NO

0.1

F V

CAPACITOR

LOCAL

DIODE

REMOTE

DIODE

MAX6680/81 toc06

FREQUENCY (Hz)

TEMPERATURE ERROR (°C)

10M1M100k10k1k10010

-1

-2

1 100M

TEMPERATURE ERROR

vs. COMMON-MODE NOISE FREQUENCY

= 100mV

P-P

SQUARE WAVE

AC-COUPLED TO DXN

MAX6680/81 toc07

FREQUENCY (Hz)

TEMPERATURE ERROR (°C)

10M1M100k10k1k

-1

100 100M

TEMPERATURE ERROR

vs. DIFFERENTIAL NOISE FREQUENCY

= 10mV

P-P

SQUARE WAVE

APPLIED TO DXP-DXN

MAX6680/81 toc08

DXP-DXN CAPACITANCE (nF)

TEMPERATURE ERROR (°C)

908070605040302010

-4

-3

-2

-1

-5

0100

TEMPERATURE ERROR

vs. DXP-DXN CAPACITANCE

1 2 3 4 5 6 7 8 9 ... 16 17

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