Rainbow-electronics MAX1444 Uživatelský manuál stáhnout pdf (Strana 8)

MAX1444

10-Bit, 40Msps, +3.0V, Low-Power

ADC with Internal Reference

8 _______________________________________________________________________________________

-40 10-15 356085

MAX1444-28

TEMPERATURE (°C)

OVDD

(mA)

DIGITAL SUPPLY CURRENT

vs. TEMPERATURE

= 7.51MHz

3.0

2.5

2.0

4.0

3.5

4.5

5.0

2.70 3.002.85 3.15 3.30 3.45 3.60

ANALOG POWER-DOWN CURRENT

vs. ANALOG POWER SUPPLY

MAX1444-29

(V)

VDD

(µA)

OE = OV

PD = V

1.2 1.8 2.4 3.0 3.6

DIGITAL POWER-DOWN CURRENT

vs. DIGITAL POWER SUPPLY

MAX1444-30

(V)

OVDD

(µA)

PD = V

OE = OV

30 3834 42 46 50

MAX1444-31

CLOCK FREQUENCY (MHz)

SFDR, SNR, THD, SINAD (dB)

SFDR, SNR, THD, SINAD vs.

CLOCK FREQUENCY (OVER-CLOCKING)

= 13.24MHz

THD

SFDR

SNR

SINAD

2.02

2.00

2.06

2.04

2.08

2.10

2.70 2.85 3.00 3.15 3.30 3.45 3.60

INTERNAL REFERENCE VOLTAGE

vs. ANALOG SUPPLY VOLTAGE

MAX1444-32

(V)

REFOUT

(V)

2.02

2.00

2.06

2.04

2.08

2.10

-40 10-15 356085

MAX1444-33

TEMPERATURE (°C)

REFOUT

(V)

INTERNAL REFERENCE VOLTAGE

vs. TEMPERATURE

7000

21000

14000

28000

35000

42000

56000

49000

63000

70000

N-2 N-1 N N+1 N+2

0869

64515

152 0

OUTPUT NOISE HISTOGRAM (DC INPUT)

MAX1444-34

DIGITAL OUTPUT CODE

COUNTS

Typical Operating Characteristics (continued)

= +3.0V, OV

= +2.7V, internal reference, differential input at -0.5dB FS, f

CLK

= 40MHz, C

≈ 10pF, T

= +25°C, unless other-

wise noted.)

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 17 18

ADC with Internal Reference 1

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