Datasheet

ADT7411
Rev. B | Page 10 of 36
TYPICAL PERFORMANCE CHARACTERISTICS
2.00
2.73.13.53.94.34.75.12.9 3.3 3.7 4.1 4.5 4.9 5.3 5.5
V
CC
(V)
I
CC
(mA)
1.75
1.80
1.85
1.90
1.95
ADC OFF
0
2882-006
Figure 7. Supply Current vs. Supply Voltage at 25°C
–10
AC PSRR (dB)
–60
–50
–40
–30
–20
0
1 10 100
FREQUENCY (kHz)
±100mV RIPPLE ON V
CC
V
REF
= 2.25V
V
DD
= 3.3V
TEMPERATURE = 25°C
02882-007
Figure 8. PSRR vs. Supply Ripple Frequency
7
2.72.93.13.33.53.73.94.14.34.54.74.95.15.35.5
V
CC
(V)
I
CC
(µA)
0
1
2
3
4
5
6
02882-008
Figure 9. Power-Down Current vs. Supply Voltage at 25°C
1.0
0 200 400 600 800 1000
ADC CODE
INL ERROR (LSB)
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
02882-009
Figure 10. ADC INL with Ref = V
DD
(3.3 V)
TEMPERATURE (°C)
–30 0 40 85 120
1.5
TEMPERATURE ERROR (°C)
–1.0
–0.5
0
0.5
1.0
EXTERNAL TEMPERATURE @ 3.3V
INTERNAL TEMPERATURE @ 5V
INTERNAL TEMPERATURE @ 3.3V
EXTERNAL TEMPERATURE @ 5V
02882-010
Figure 11. Temperature Error at 3.3 V and 5 V
ERROR (LSB)
–1
0
1
2
3
–2
–3
–4
V
DD
= 3.3V
–40 –20 0
TEMPERATURE (°C)
20 40 60 80 100 120
GAIN ERROR
OFFSET ERROR
02882-011
Figure 12. ADC Offset Error and Gain Error vs. Temperature