AD7391 Datasheet, PDF (6/12 Pages) Analog Devices – +3 Volt Serial-Input Micropower 10-Bit & 12-Bit DACs

AD7390/AD7391–Typical Performance Characteristics
25
AD7390
SS = 100 units
20 ^{TA = 25 C}
V_DD = 2.7V
V_REF = 2.5V
15
10
5
0
5.0 5.8 6.6 7.3 8.1 8.9 9.7 10.5 11.2 12.0
TOTAL UNADJUSTED ERROR – LSB
Figure 5. AD7390 Total Unadjusted
Error Histogram
100
AD7391
90
SS = 300 units
80
T_A = 25؇C
V_DD = 2.7V
70
V_REF = 2.5V
60
50
40
30
20
10
0
–10 –3.3 3.3 10 16 23 30 36 43 50
TOTAL UNADJUSTED ERROR – LSB
Figure 6. AD7391 Total Unadjusted
Error Histogram
30
AD7391
SS = 100 units
24
T_A = ؊40؇ to 85؇C
V_DD = 2.7V
V_REF = 2.5V
18
12
6
0
–33 –30 –26 –23 –20 –16 –13 –10 –6 –3 0
FULL SCALE TEMPCO – ppm/°C
Figure 7. AD7391 Full-Scale Output
Tempco Histogram
16
AD7390
14
V_DD = 5V
V_REF = 2.5V
12
T_A = 25 C
10
8
6
4
2
0
1
10
100
1K
10K 100K
FREQUENCY – Hz
Figure 8. Voltage Noise Density vs.
Frequency
100
95 ^{VLOGIC FROM}
3.0V TO 0V
90
85
AD7390
80
75
70
V_LOGIC FROM
0V TO 3.0V
T_A = 25 C
V_DD = 3.0V
65
60
55
50
0.0 0.5 1.0 1.5 2.0 2.5 3.0
V_IN – Volts
Figure 9. Supply Current vs. Logic
Input Voltage
5.0
AD7390
4.5 _{CODE = FFFH}
4.0 ^{VREF = 2V}
LOGIC VOLTAGE
3.5 _VARIED
3.0
2.5
V_LOGIC FROM
HIGH TO LOW
2.0
1.5
V_LOGIC FROM
1.0
LOW TO HIGH
0.5
0.0
1
2
3
4
5
6
7
SUPPLY VOLTAGE – V
Figure 10. Logic Threshold vs. Supply
Voltage
100
AD7390
90 ^{SAMPLE SIZE = 300 UNITS}
V_DD = 5.0V, V_LOGIC = 0V
80
V_DD = 3.6V, V_LOGIC = 2.4V
70
60
50
40
V_DD = 3.0V, V_LOGIC = 0V
30
20
55 35 15 5 25 45 65 85 105 125
TEMPERATURE – C
Figure 11. Supply Current vs.
Temperature
1000
800
AD7391
V_LOGIC = 0V TO V_DD TO 0V
V_REF = 2.5V
T_A = 25 C
600
a. V_DD = 5.5V, CODE = 155_H
b. V_DD = 5.5V, CODE = 3FF_H
400 ^{c. VDD = 2.7V, CODE = 155H}
d. V_DD = 2.7V, CODE = 355_H
ab
200
dc
0
1K
10K
100K
1M
10M
CLOCK FREQUENCY – Hz
Figure 12. Supply Current vs. Clock
Frequency
60
50
V_DD = 5V 5%
40
V_DD = 3V 5%
30
T_A = 25 C
20
10
0
10
100
1K
10K
FREQUENCY – Hz
Figure 13. Power Supply Rejection vs.
Frequency
–6–
REV. 0