元器件交易网

8-/4-/2-Channel,12-Bit,Simultaneous-Sampling ADCswith ±10V, ±5V, and 0 to +5V Analog Input RangesMAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314

(AVDD= +5V, DVDD= +3V, AGND = DGND = 0, VREF= VREFMS= +2.5V (external reference), CREF= CREFMS= 0.1µF, CREF+=CREF-= 0.1µF, CREF+-to-REF-= 2.2µF || 0.1µF, CCOM= 2.2µF || 0.1µF, CMSV= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipolardevices), fCLK= 16.67MHz 50% duty cycle, INTCLK/EXTCLK= AGND (external clock), fIN= 500kHz, AIN= -0.4dBFS. TA= +25°C,unless otherwise noted.) (Figures 3 and 4)

SIGNAL-TO-NOISE RATIOvs. REFERENCE VOLTAGE

MAX1304 toc15

SIGNAL-TO-NOISE PLUS DISTORTION

vs. REFERENCE VOLTAGE

747372SINAD (dB)

71706968676665

MAX1304 toc16

75747372SNR (dB)

717069686766652.0

2.2

2.4

2.6

2.8

75

3.0

2.02.22.42.62.83.0

VREF (V)

VREF (V)

TOTAL HARMONIC DISTORTIONvs. REFERENCE VOLTAGE

MAX1304 toc17

SPURIOUS-FREE DYNAMIC RANGE

vs. REFERENCE VOLTAGE

MAX1304 toc18

-70-72-74-76

1009590SFDR (dBc)

858075702.0

2.2

2.4

2.6

2.8

THD (dBc)

-78-80-82-84-86-88-90

2.0

2.2

2.4

2.6

2.8

3.0

VREF (V)

3.0

VREF (V)

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