Rainbow-electronics MAX1499 Manual do Utilizador descarregar pdf (Página 7)

MAX1497/MAX1499

3.5- and 4.5-Digit, Single-Chip ADCs with LED

Drivers and µC Interface

_______________________________________________________________________________________ 7

Typical Operating Characteristics

(AV

= DV

= V

= +2.7V to +5.25V, V

LED

= +2.7V to +5.25V, GND = 0, GLED = 0, external reference mode, REF+ = 2.048V,

REF- = GND, C

REF+

= C

REF-

= 0.1µF, RANGE bit = 1, internal clock mode, C

VNEG

= 0.1µF. T

= +25°C, unless otherwise noted.)

SUPPLY CURRENT

vs. SUPPLY VOLTAGE (MAX1499)

MAX1497/99 toc01

SUPPLY VOLTAGE (V)

SUPPLY CURRENT (µA)

4.754.253.753.25

100

200

300

400

500

600

700

2.75 5.25

ANALOG SUPPLY

DIGITAL SUPPLY

SUPPLY CURRENT

vs. SUPPLY VOLTAGE (MAX1497)

MAX1497/99 toc02

SUPPLY VOLTAGE (V)

SUPPLY CURRENT (µA)

4.744.233.723.21

450

500

550

600

650

700

400

2.70 5.25

SUPPLY CURRENT

vs. TEMPERATURE (MAX1499)

MAX1497/99 toc03

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

605040302010

100

200

300

400

500

600

700

070

ANALOG SUPPLY

DIGITAL SUPPLY

SUPPLY CURRENT

vs. TEMPERATURE (MAX1497)

MAX1497/99 toc04

TEMPERATURE (

SUPPLY CURRENT (µA)

6035-15 10

610

640

630

620

650

660

670

680

690

700

600

-40 85

SHUTDOWN CURRENT

vs. TEMPERATURE (MAX1499)

MAX1497/99 toc05

TEMPERATURE (°C)

SHUTDOWN CURRENT (µA)

605040302010

100

150

200

250

300

070

ANALOG SUPPLY

DIGITAL SUPPLY

SHUTDOWN CURRENT

vs. SUPPLY VOLTAGE (MAX1499)

MAX1497/99 toc07

SUPPLY VOLTAGE (V)

SHUTDOWN CURRENT (µA)

4.754.253.753.25

100

150

200

250

300

2.75 5.25

ANALOG SUPPLY

DIGITAL SUPPLY

SHUTDOWN CURRENT

vs. SUPPLY VOLTAGE (MAX1497)

MAX1497/99 toc08

SUPPLY VOLTAGE (V)

SHUTDOWN CURRENT (µA)

4.744.233.723.21

150

100

200

250

300

350

2.70 5.25

MAX1499

OFFSET ERROR vs. SUPPLY VOLTAGE

MAX1497/99 toc09

SUPPLY VOLTAGE (V)

OFFSET ERROR (LSB)

4.754.253.753.25

-0.11

-0.06

-0.01

0.04

0.09

0.14

0.19

-0.16

2.75 5.25

SHUTDOWN CURRENT

vs. TEMPERATURE (MAX1497)

MAX1497/99 toc06

TEMPERATURE (

SHUTDOWN CURRENT (µA)

6035-15 10

150

100

200

250

300

350

-40 85

1 2 3 4 5 6 7 8 9 10 11 12 ... 32 33

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