AD7801 Analog Devices, AD7801 Datasheet - Page 6

• Manufacturer Part Number: AD7801
• Description: +2.7 V to +5.5 V, Parallel Input, Voltage Output 8-Bit DAC
• Manufacturer: Analog Devices

Specifications of AD7801

• Resolution (bits): 8bit
• Dac Update Rate: 833kSPS
• Dac Settling Time: 1.2µs
• Max Pos Supply (v): +5.5V
• Single-supply: Yes
• Dac Type: Voltage Out
• Dac Input Format: Par

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