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Typical operating characteristics – Rainbow Electronics MAX6692 User Manual

Page 4

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MAX6648/MAX6692

Precision SMBus-Compatible Remote/Local
Temperature Sensors with Overtemperature Alarms

4

_______________________________________________________________________________________

Typical Operating Characteristics

(V

CC

= 3.3V, T

A

= +25°C, unless otherwise noted.)

STANDBY SUPPLY CURRENT

vs. SUPPLY VOLTAGE

MAX6648/92 toc01

SUPPLY VOLTAGE (V)

STANDBY SUPPLY CURRENT (

µ

A)

5.0

4.5

4.0

3.5

2.8

3.2

3.6

4.0

2.4

3.0

5.5

OPERATING SUPPLY CURRENT

vs. CONVERSION RATE

MAX6648/92 toc02

CONVERSION RATE (Hz)

OPERATING SUPPLY CURRENT (

µ

A)

4.00

2.00

1.00

0.50

0.25

0.13

100

200

300

400

500

600

0

0.63

REMOTE TEMPERATURE ERROR

vs. REMOTE-DIODE TEMPERATURE

MAX6648/92 toc03

TEMPERATURE (

°C)

TEMPERATURE ERROR (

°C)

100

75

50

25

-1.5

-0.5

0.5

1.5

2.5

-2.5

0

125

T

A

= +85

°C

FAIRCHILD 2N3906

LOCAL TEMPERATURE ERROR

vs. DIE TEMPERATURE

-0.8

-0.6

-0.4

-0.2

0

0.2

0.4

0.6

0.8

1.0

-1.0

MAX6648/92 toc04

TEMPERATURE (

°C)

TEMPERATURE ERROR (

°C)

100

75

50

25

0

125

TEMPERATURE ERROR

vs. POWER-SUPPLY NOISE FREQUENCY

MAX6648/92 toc05

FREQUENCY (Hz)

TEMPERATURE ERROR (

°C)

10k

1k

1

10

100

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

0

0.1

100k

LOCAL ERROR

REMOTE ERROR

V

IN

= SQUARE WAVE APPLIED TO V

CC

WITH NO 0.1

µF V

CC

CAPACITOR

-1

0

1

2

3

4

5

6

7

8

9

-2

TEMPERATURE ERROR

vs. COMMON-MODE NOISE FREQUENCY

MAX6648/92 toc06

FREQUENCY (Hz)

TEMPERATURE ERROR (

°C)

100k

10k

10

100

1k

1

REMOTE ERROR

LOCAL ERROR

V

IN

= AC-COUPLED TO DXN

V

IN

= 100mV

P-P

-1.5

-1.0

-0.5

0

0.5

1.0

1.5

2.0

-2.0

TEMPERATURE ERROR

vs. DIFFERENTIAL-MODE NOISE FREQUENCY

MAX6648/92 toc07

FREQUENCY (Hz)

TEMPERATURE ERROR (

°C)

100k

10k

10

100

1k

1

V

IN

= 20mV

P-P

SQUARE WAVE

APPLIED TO DXP-DXN

TEMPERATURE ERROR

vs. DXP-DXN CAPACITANCE

MAX6648/92 toc08

DXP-DXN CAPACITANCE (nF)

TEMPERATURE ERROR (

°C)

10.000

1.000

-5

-4

-3

-2

-1

0

1

-6

0.100

100.000