Datasheet

AD5680
Rev. A | Page 7 of 20
TYPICAL PERFORMANCE CHARACTERISTICS
CODE
INL ERROR (LSB)
40
16
24
32
0
8
–24
–40
–32
–8
–16
0 40k 80k 120k 160k 200k 240k
05854-028
V
DD
= V
REF
= 5V
T
A
= 25°C
Figure 4. Typical INL Plot
CODE
DNL ERROR (LSB)
1.0
0.6
0.4
0.2
0.8
0
–0.4
–0.2
–0.6
–1.0
–0.8
0 25k 50k 100k75k 125k 150k 225k200k175k 250k
05854-029
V
DD
= V
REF
= 5V
T
A
= 25°C
Figure 5. Typical DNL Plot in 50 Hz System Bandwidth
SYSTEM BANDWIDTH (Hz)
0
0
D
N
L
(
L
S
B
)
50
300 >300
±4
±1
±2
V
DD
= 4.5V TO 5.5V
T = –40°C TO +105°C
05854-042
Figure 6. DNL Performance vs. System Bandwidth
TEMPERATURE (°C)
ERROR (% FSR)
0
–0.04
–0.02
–0.06
–0.08
–0.10
–0.18
–0.16
–0.14
–0.12
–0.20
–40 –20 40200 1008060
05854-044
V
DD
= 5V
GAIN ERROR
FULL-SCALE ERROR
Figure 7. Gain Error and Full-Scale Error vs. Temperature
TEMPERATURE (°C)
ERROR (mV)
1.5
1.0
0.5
0
–2.0
–1.5
–1.0
–0.5
–2.5
–40 –20 40200860 100
05854-043
0
OFFSET ERROR
ZERO-SCALE ERROR
Figure 8. Zero-Scale Error and Offset Error vs. Temperature
I (mA)
ERROR VOLTAGE (V)
0.20
–0.25
–0.20
–0.15
–0.10
–0.05
0
0.05
0.10
0.15
–5 –4 –3 –2 –1 0 1 2 435
05854-014
V
DD
= V
REF
= 5V, 3V
T
A
= 25°C
DAC LOADED WITH
ZERO SCALE –
SINKING CURRENT
DAC LOADED WITH
FULL SCALE –
SOURCING CURRENT
Figure 9. Headroom at Rails vs. Source and Sink Current