Rainbow-electronics MAX1420 Manual do Utilizador descarregar pdf (Página 8)

MAX1420

12-Bit, 60Msps, +3.3V, Low-Power ADC

with Internal Reference

8 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

AVDD

= V

DVDD

= +3.3V, AGND = DGND = 0, V

= ±1.024V, differential input voltage at -0.5dB FS, f

CLK

= 60.006MHz (50% duty

cycle), digital output load C

= 10pF, T

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at T

= +25°C.)

-40 10-15 356085

MAX1420 toc22

TEMPERATURE (°C)

AVDD

(mA)

ANALOG SUPPLY CURRENT

vs. TEMPERATURE

0.03

0.09

0.06

0.12

0.15

2.7 3.02.9 3.2 3.3 3.5 3.6

MAX1420 toc26

(V)

DVDD

(µA)

DIGITAL POWER-DOWN CURRENT

vs. DIGITAL SUPPLY VOLTAGE

-80

-60

-40

-20

20 4030 50 60 70 80

MAX1420 toc27

CLOCK FREQUENCY (MHz)

SFDR, SNR, THD, SINAD (dB)

SNR, SINAD, THD, SFDR

vs. CLOCK FREQUENCY

SFDR

SINAD

SNR

THD

= 15MHz

2.00

2.02

2.06

2.04

2.08

2.10

-40 10-15 35 60 85

MAX1420 toc29

TEMPERATURE (°C)

REF

(dB)

INTERNAL REFERENCE VOLTAGE

vs. TEMPERATURE

N-6 N-4 N-3N-5 N-2 N-1 N N+1 N+2 N+3 N+4 N+5 N+6

MAX1420 toc30

DIGITAL OUTPUT NOISE

COUNTS

300,000

200,000

100,000

400,000

500,000

600,000

OUTPUT NOISE HISTOGRAM

(DC INPUT)

0342

14538

6113

242 0

115171

153704

53499

339785

387312

502186

0.04

0.12

0.08

0.16

0.20

3.10 3.50

MAX1420 toc25

(V)

AVDD

(µA)

ANALOG POWER-DOWN CURRENT

vs. ANALOG SUPPLY VOLTAGE

3.303.20 3.40

2.075

2.063

2.050

2.038

2.025

3.1 3.33.2 3.4 3.5

MAX1420 toc28

(V)

REF

(V)

INTERNAL REFERENCE VOLTAGE

vs. ANALOG SUPPLY VOLTAGE

2.7 3.22.9 3.0 3.3 3.5 3.6

MAX1420 toc23

(V)

DVDD

(mA)

DIGITAL SUPPLY CURRENT

vs. DIGITAL SUPPLY VOLTAGE

-40 10-15 35 60 85

MAX1420 toc24

TEMPERATURE (°C)

DVDD

(mA)

DIGITAL SUPPLY CURRENT

vs. TEMPERATURE

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 16 17

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