AD7801–Typical Performance Characteristics
10
T
9
ZERO CODE ERROR – LSB
V
DD
8
7
6
5
4
3
2
1
VDD = 2.7 TO 5.5V
DAC LOADED WITH ALL ZEROES
INTERNAL REFERENCE
1
1
←
WR
2
T
V
DD
= 5V
INTERNAL VOLTAGE
REFERENCE
10 LSB STEP CHANGE
T
A
= +25 C
V
OUT
V
OUT
2
←
CH1
5.00V CH2
5.00V M20.0ms CH1
0
–50
–25
0
25
50
75
100
125
CH1 5.00V, CH2 50.0mV, M 250ns
TEMPERATURE – C
Figure 11. Power-On—Reset
Figure 12. Zero Code Error vs.
Temperature
Figure 13. Small-Scale Settling Time
0.5
0.4
0.3
V
DD
= 5V
INTERNAL REFERENCE
5kΩ 100pF LOAD
LIMITED CODE RANGE (15–245)
T
A
= +25°C
0.5
0.4
0.3
0.5
0.4
0.3
INL ERROR – LSB
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
0
32
64 96 128 160 192 224 256
INPUT CODE (15 to 245)
INL ERROR – LSB
0.2
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
DNL ERROR – LSB
V
DD
= 5V
INTERNAL REFERENCE
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
V
DD
= 5V
INTERNAL REFERENCE
–0.5
–60 –40 –20
0 20 40 60 80 100 120 140
TEMPERATURE – C
–0.5
–60 –40 –20
0 20 40 60 80 100 120 140
TEMPERATURE – C
Figure 14. Integral Linearity Plot
Figure 15. Typical INL vs. Temperature
Figure 16. Typical DNL vs. Temperature
1.0
%
1000
V
DD
= 5V
POWER DOWN CURRENT – nA
900
800
700
600
500
400
300
200
100
V
DD
= 5V
LOGIC INPUTS = V
DD
OR GND
0.8
INT REFERENCE ERROR –
0.6
0.4
0.2
0
–60 –40 –20
0
–50
–25
0 20 40 60 80 100 120 140
TEMPERATURE – C
0
25
50
75
TEMPERATURE – C
100
150
Figure 17. Typical Internal Reference
Error vs. Temperature
Figure 18. Power-Down Current vs.
Temperature
–6–
REV. 0
AD [ ANALOG DEVICES ]
