ADS7828-Q1
SBAS456A –DECEMBER 2008–REVISED OCTOBER 2009.......................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS
FREQUENCY SPECTRUM
INTEGRAL LINEARITY ERROR vs CODE
(2.5V Internal Reference)
(4096 Point FFT: fIN = 1 kHz, 0 dB)
2.00
1.50
0.00
–40.00
–80.00
–120.0
1.00
0.50
0.00
–0.50
–1.00
–1.50
–2.00
0
10
20
25
4095
4095
0
1024
2048
3072
4095
Output Code
Frequency (kHz)
DIFFERENTIAL LINEARITY ERROR vs CODE
(2.5-V Internal Reference)
INTEGRAL LINEARITY ERROR vs CODE
(2.5-V External Reference)
2.00
1.50
2.00
1.50
1.00
1.00
0.50
0.50
0.00
0.00
–0.50
–1.00
–1.50
–2.00
–0.50
–1.00
–1.50
–2.00
0
1024
2048
3072
0
1024
2048
3072
4095
Output Code
Output Code
DIFFERENTIAL LINEARITY ERROR vs CODE
(2.5-V External Reference)
CHANGE IN OFFSET vs TEMPERATURE
1.5
1.0
2.00
1.50
1.00
0.5
0.50
0.0
0.00
–0.5
–1.0
–1.5
–0.50
–1.00
–1.50
–2.00
–50
–25
0
25
50
75
100
0
1024
2048
3072
Temperature (°C)
Output Code
10
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