Datasheet

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0
-10
-20
-30
-40
-50
-60
-70
-80
-90
PSR(dB)
1k 10k 100k 1M 10M
RippleFrequency(Hz)
V =2.7V
CC
Ripple=500mV
PP
V =1.25VDC
IN
V =2.5V
REF
PSR(dB)=20log(500mV/DV )
O
where DV =changeindigitalresult
O
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
PSR(dB)
1k10 10k1 100k 1M 10M
RippleFrequency(Hz)
V =5V
CC
Ripple=500mV
PP
V =2.5VDC
IN
V =5V
REF
PSR(dB)=20log(500mV/DV )
O
where DV =changeindigitalresult
O
0.20
0.15
0.10
0.05
0.00
-0.05
-0.10
Deltafrom+2.5VReference(LSB)
1 2 3 4 5
ReferenceVoltage(V)
V =5V
CC
ChangeinIntegral
Linearity(LSB)
ChangeinDifferential
Linearity(LSB)
ADS7822
SBAS062C – JANUARY 1996 – REVISED AUGUST 2007
TYPICAL CHARACTERISTICS (continued)
At T
A
= +25 ° C, V
CC
= +2.7V, V
REF
= +2.5V, f
SAMPLE
= 75kHz, f
CLK
= 16 × f
SAMPLE
, unless otherwise specified.
POWER-SUPPLY REJECTION POWER-SUPPLY REJECTION
vs RIPPLE FREQUENCY vs RIPPLE FREQUENCY
Figure 19. Figure 20.
CHANGE IN INTEGRAL LINEARITY
AND DIFFERENTIAL LINEARITY
vs REFERENCE VOLTAGE
Figure 21.
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