Datasheet

Temperature( C)°
OffsetVoltage(mV)
-15
0.50
0.25
0
-0.25
-0.50
-40 8510 35 60
5V
3V
f (MHz)
SCLK
INL(LSB)
0.50
0.25
0
-0.25
-0.50
0.1 1001 10
+VA=3V
INL+
INL-
Temperature( C)°
GainError(%FSR)
-15
0.050
0.025
0
-0.025
-0.050
-40
3V
5V
85
10 35 60
+VASupplyVoltage(V)
OffsetVoltage(mV)
0.5
0.4
0.3
0.2
0.1
0
-0.1
2.5 5.53.0
3.5 4.0 4.5 5.0
+VASupplyVoltage(V)
GainError(%FSR)
0.10
0.05
0
-0.05
-0.10
2.5 5.53.0 3.5 4.0 4.5 5.0
Frequency(kHz)
PSRR(dB)
-70
-72
-74
-76
-78
-80
0 10010
20 30 40 50 60 70 80 90
5V
3V
ADS7229
ADS7230
SBAS437A – MAY 2008 – REVISED JUNE 2009 ............................................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS (continued)
At – 40 ° C to +85 ° C, V
REF
[(REF+) – (REF – )] = 5V when +VA = +VBD = 5V or V
REF
[(REF+) – (REF – )] = 2.5V when +VA =
+VBD = 3V, f
SCLK
= 42MHz, or V
REF
= 2.5 when +VA = +VBD = 2.7V, f
SCLK
= 37.8MHz, and f
I
= dc for dc curves, f
I
= 100kHz
for ac curves with 5V supply, and f
I
= 10kHz for ac curves with 3V supply, unless otherwise noted.
INTEGRAL NONLINEARITY OFFSET VOLTAGE
vs EXTERNAL CLOCK FREQUENCY vs FREE-AIR TEMPERATURE
Figure 12. Figure 13.
OFFSET VOLTAGE GAIN ERROR
vs SUPPLY VOLTAGE vs FREE-AIR TEMPERATURE
Figure 14. Figure 15.
GAIN ERROR POWER-SUPPLY REJECTION RATIO
vs SUPPLY VOLTAGE vs SUPPLY RIPPLE FREQUENCY
Figure 16. Figure 17.
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