Datasheet

ADT7316/ADT7317/ADT7318
Rev. B | Page 17 of 44
0
FULL-SCALE ERROR (mV)
–12
–10
–8
–6
–4
–2
123
V
REF
(V)
45
V
DD
= 5V
T
A
= 25°C
0
2661-027
Figure 28. Full-Scale Error vs. V
REF
2.329
01 2 3 4
TIME (µs)
DAC OUTPUT (V)
2.322
2.323
2.324
2.325
2.326
2.327
2.328
5
V
DD
= 5V
V
REF
= 5V
DAC OUTPUT LOADED
TO MIDSCALE
0
2661-028
Figure 29. DAC-to-
DAC Crosstalk
–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
02661-029
Figure 30. PSRR vs. Supply Ripple Frequency
1.5
TEMPERATURE ERROR (°C)
–1.0
–0.5
0
0.5
1.0
–30 0
40
TEMPERATURE (°C)
85 120
INTERNAL TEMPERATURE @ 3.3V
INTERNAL TEMPERATURE @ 5V
EXTERNAL TEMPERATURE @ 5V
EXTERNAL TEMPERATURE @ 3.3V
02661-030
Figure 31. Temperature Error @ 3.3 V and 5 V
15
TEMPERATURE ERROR (°C)
–10
–5
0
5
10
–15
–20
–25
01020
PCB TRACK RESISTANCE (MΩ)
30 40 50 60 70 80 90 100
D+ TO V
CC
D+ TO GND
V
DD
= 3.3V
TEMPERATURE = 25°C
02661-031
Figure 32. External Temperature Error vs. PCB Track Resistance
0 5 10 15 20 25
CAPACITANCE (nF)
TEMPERATURE ERROR (°C)
–60
–50
–40
–30
–20
–10
0
30 35 40 45 50
V
DD
= 3.3V
0
2661-032
Figure 33. External Temperature Error vs. Capacitance Between D+ and D−