AD7568 Analog Devices, AD7568 Datasheet - Page 6

• Manufacturer Part Number: AD7568
• Description: Octal 12-Bit CMOS DAC
• Manufacturer: Analog Devices

Specifications of AD7568

• Resolution (bits): 12bit
• Dac Update Rate: 2MSPS
• Dac Settling Time: 500ns
• Max Pos Supply (v): +5.25V
• Single-supply: Yes
• Dac Type: Current Out
• Dac Input Format: Ser

AD7568
Figure 6. Integral Nonlinearity Error
vs. V
Figure 3. Supply Current vs. Logic
Input Voltage
100
Figure 9. Digital-to-Analog Glitch
Impulse
0%
90
10
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
2.0
0.0
REF
50mV
DIGITAL INPUTS
5V
AD713 OUTPUT
–Typical Performance Curves
1.0
4.0
DIGITAL INPUT – Volts
V
2.0
REF
6.0
– Volts
3.0
V
T = +25 C
V
OP AMP = AD713
V
T = +25 C
DD
A
REF
A
DD
200ns
200ns
V
T = +25 C
= +5V
= +10V
8.0
A
DD
= +5V
4.0
= +5V
10.0
5.0
–100
1.0
0.8
0.6
0.4
–10
–20
–30
–40
–50
–60
–70
–80
–90
0.2
0.0
–40
Figure 10. Channel-to-Channel
Isolation (1 DAC to 1 DAC)
2
1
0
Figure 7. Typical DAC to DAC
Linearity Matching
0
Figure 4. Supply Current vs.
Temperature
10
0
3
V
ALL OTHER REFERENCE INPUTS GROUNDED
DAC C LOADED WITH ALL 1s
ALL OTHER DACs LOADED WITH ALL 0s
REF
–15
C = 20V pk-pk SINE WAVE
TEMPERATURE – C
FREQUENCY – Hz
10
DIGITAL CODE
10
4
–6–
2048
V
V
IH
IH
= +2.4V
= +4V
35
V
V
T = +25 C
A
REF
DD
10
V
DD
5
= +5V
= +10V
60
= +5V
4095
85
10
6
Figure 8. Total Harmonic Distortion
vs. Frequency
Figure 11. Channel-to-Channel
Isolation (1 DAC to All Other DACs)
Figure 5. Differential Nonlinearity
Error vs. V
–100
–100
–50
–55
–60
–65
–70
–75
–80
–85
–90
–95
–10
–20
–30
–40
–50
–60
–70
–80
–90
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
2.0
10
10
2
3
V
ALL OTHER REFERENCE INPUTS =
20V pk-pk SINE WAVE
DAC B LOADED WITH ALL 0s
ALL OTHER DACs LOADED WITH ALL 1s
REF
REF
B GROUNDED
4.0
FREQUENCY – Hz
10
FREQUENCY – Hz
10
V
3
4
REF
6.0
V
T = +25 C
V
OP AMP = AD713
– Volts
A
DD
IN
= 6V rms
= +5V
V
T = +25 C
10
10
A
DD
4
5
8.0
= +5V
REV. C
10.0
10
10
5
6