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ADS7844NB Datasheet(PDF) 6 Page - Burr-Brown (TI)

[Old version datasheet] Texas Instruments acquired Burr-Brown Corporation. Click here to check the latest version.
Part # ADS7844NB
Description  12-Bit, 8-Channel Serial Output Sampling ANALOG-TO-DIGITAL CONVERTER
Download  14 Pages
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Manufacturer  BURR-BROWN [Burr-Brown (TI)]
Direct Link  http://www.burr-brown.com
Logo BURR-BROWN - Burr-Brown (TI)

ADS7844NB Datasheet(HTML) 6 Page - Burr-Brown (TI)

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®
6
ADS7844
0
–20
–40
–60
–80
–100
–120
FREQUENCY SPECTRUM
(4096 Point FFT; fIN = 1,129Hz, –0.2dB)
0
62.5
15.6
46.9
31.3
Frequency (kHz)
0
–20
–40
–60
–80
–100
–120
FREQUENCY SPECTRUM
(4096 Point FFT; fIN = 10.6kHz, –0.2dB)
0
62.5
15.6
46.9
31.3
Frequency (kHz)
SIGNAL-TO-NOISE RATIO AND SIGNAL-TO-
(NOISE+DISTORTION) vs INPUT FREQUENCY
10
1
100
Input Frequency (kHz)
78
74
70
66
62
58
54
SINAD
SNR
THD
SFDR
SPURIOUS FREE DYNAMIC RANGE AND TOTAL
HARMONIC DISTORTION vs INPUT FREQUENCY
10
1
100
Input Frequency (kHz)
90
85
80
75
70
65
60
55
50
–90
–85
–80
–75
–70
–65
–60
–55
–50
EFFECTIVE NUMBER OF BITS
vs INPUT FREQUENCY
10
1
100
Input Frequency (kHz)
12.0
11.5
11.0
10.5
10.0
9.5
9.0
TYPICAL PERFORMANCE CURVES:+2.7V
At TA = +25°C, +VCC = +2.7V, VREF = +2.5V, fSAMPLE = 125kHz, and fCLK = 16 • fSAMPLE = 2MHz, unless otherwise noted.
CHANGE IN SIGNAL-TO-(NOISE+DISTORTION)
vs TEMPERATURE
–20
–40
100
Temperature (˚C)
0.2
0.0
–0.2
–0.4
–0.6
–0.8
0.4
0
20
40
60
80
f
IN = 10kHz, –0.2dB


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