Rainbow-electronics MAX1329 Manual do Utilizador descarregar pdf (Página 13)

MAX1329/MAX1330

12-/16-Bit DASs with ADC, DACs, DPIOs, APIOs,

Reference, Voltage Monitors, and Temp Sensor

______________________________________________________________________________________ 13

Typical Operating Characteristics (continued)

(AV

= 5.0V, V

REFADC

= V

REFDAC

= 2.5V for DV

= 3.0V; T

= +25°C, unless otherwise noted.)

ADC DIFFERENTIAL NONLINEARITY

vs. DIGITAL INPUT CODE (AV

= 3.0V)

MAX1329 toc10

DIGITAL INPUT CODE

DNL (LSB)

307220481024

-0.8

-0.6

-0.4

-0.2

0.2

0.4

0.6

0.8

1.0

-1.0

0 4096

SAMPLE

= 234ksps

ADC INTEGRAL NONLINEARITY

vs. DIGITAL INPUT CODE (AV

= 3.0V)

MAX1329 toc11

DIGITAL INPUT CODE

INL (LSB)

307220481024

-0.8

-0.6

-0.4

-0.2

0.2

0.4

0.6

0.8

1.0

-1.0

0 4096

SAMPLE

= 234ksps

100

110

105

115

120

ADC SUPPLY CURRENT

vs. ANALOG SUPPLY VOLTAGE

MAX1329 toc12

(V)

AVDD

(µA)

2.5 3.5 4.03.0 4.5 5.0 5.5

ADC SUPPLY CURRENT

vs. CONVERSION RATE

MAX1329 toc13

150

100

300

350

250

200

400

AVDD

(µA)

0 100 15050

200

250

300

CONVERSION RATE (ksps)

B = NORMAL MODE

= 5V, V

REFDAC

= 2.5V

E = NORMAL MODE

= 3V, V

REFADC

= 1.25V

C = BURST MODE

= 5V, V

REFDAC

= 2.5V

F = BURST MODE

= 3V, V

REFADC

= 1.25V

D = FAST POWER-DOWN

= 3V, V

REFADC

= 1.25V

A = FAST POWER-DOWN

= 5V, V

REFDAC

= 2.5V

0.1

0.3

0.2

0.4

0.5

-40 10-15 35 60 85

ADC OFFSET VOLTAGE

vs. TEMPERATURE

MAX1329 toc14

TEMPERATURE (°C)

OFFSET (mV)

= 2.7V

= 5.5V

0.40

0.42

0.46

0.44

0.48

0.50

ADC OFFSET ERROR

vs. SUPPLY VOLTAGE

MAX1329 toc15

(V)

OFFSET (mV)

2.7 3.7 4.7

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 77 78

MAX1329/MAX1330 1

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