Rainbow-electronics MAX1338 Bedienungsanleitung PDF herunterladen (Seite 8)

MAX1338

14-Bit, 4-Channel, Software-Programmable,

Multiranging, Simultaneous-Sampling ADC

8 _______________________________________________________________________________________

-125

-100

-50

-75

-25

03015 45 60 75

FFT AT f

SAMPLE

= 150ksps, f

= 10kHz

MAX1338 toc10

FREQUENCY (kHz)

AMPLITUDE (dB)

1 3452 678910

SIGNAL-TO-NOISE RATIO

vs. CLOCK FREQUENCY

MAX1338 toc11

CLK

(MHz)

SNR (dB)

1 3452 678910

SIGNAL-TO-NOISE PLUS DISTORTION

vs. CLOCK FREQUENCY

MAX1338 toc12

CLK

(MHz)

SNR (dB)

-110

-106

-108

-102

-104

-98

-100

-96

-92

-94

-90

1 3452 678910

TOTAL HARMONIC DISTORTION

vs. CLOCK FREQUENCY

MAX1338 toc13

CLK

(MHz)

THD (dB)

100

105

110

13245678910

SPURIOUS-FREE DYNAMIC RANGE

vs. CLOCK FREQUENCY

MAX1338 toc14

CLK

(MHz)

SFDR (dB)

2.0 2.42.2 2.6 2.8 3.0

SIGNAL-TO-NOISE RATIO

vs. REFERENCE VOLTAGE

MAX1338 toc15

REFADC

(V)

SNR (dB)

2.0 2.42.2 2.6 2.8 3.0

SIGNAL-TO-NOISE PLUS DISTORTION

vs. REFERENCE VOLTAGE

MAX1338 toc16

REFADC

(V)

SINAD (dB)

-105

-99

-101

-103

-97

-95

-93

-91

-89

-87

-85

2.0 2.42.2 2.6 2.8 3.0

TOTAL HARMONIC DISTORTION

vs. REFERENCE VOLTAGE

MAX1338 toc17

REFADC

(V)

THD (dB)

100

105

110

2.0 2.42.2 2.6 2.8 3.0

SPURIOUS-FREE DYNAMIC RANGE

vs. REFERENCE VOLTAGE

MAX1338 toc18

REFADC

(V)

SFDR (dB)

Typical Operating Characteristics (continued)

(AV

= DV

= +5.0V, DRV

= +3.0V, AGND = DGND = DRGND = 0, INTCLK/EXTCLK = AGND, f

CLK

= 5MHz, input range =

±10V, REFP2 = REFP1, REFN2 = REFN1, COM1 = COM2, 1.0nF from REFADC to AGND, 1.0µF and 0.1µF from COM1 to AGND,

0.1µF from REFP1 to AGND, 0.1µF from REFN1 to AGND, 1.0µF from REFP1 to REFN1.)

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 23 24

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