Datasheet

AD7568
–6–
5.5
0.0
5.0
1.5
0.5
1.0
1.0
0.0
3.0
2.0
2.5
3.5
4.0
4.5
5.0
4.03.02.0
DIGITAL INPUT – Volts
I – mA
DD
V = +5V
T = +25°C
DD
A
Figure 3. Supply Current vs. Logic
Input Voltage
1.0
0.0
10.0
0.3
0.1
4.0
0.2
2.0
0.6
0.4
0.5
0.7
0.8
0.9
8.06.0
V = +5V
T = +25°C
DD
A
V – Volts
REF
INL – LSBs
Figure 6. Integral Nonlinearity Error
vs. V
REF
10
90
100
0%
 50mV
 5V
 200ns
 200ns
DIGITAL INPUTS
AD713 OUTPUT
V = +5V
T = +25°C
V = +10V
OP AMP = AD713
DD
A
REF
Figure 9. Digital-to-Analog Glitch
Impulse
–Typical Performance Curves
2
0
85–15–40
1
6010
35
TEMPERATURE – °C
I – mA
DD
V = +5V
DD
V = +2.4V
IH
V = +4V
IH
Figure 4. Supply Current vs.
Temperature
1.0
0.0
4095
0.6
0.2
2048
0.4
0
0.8
DIGITAL CODE
INL SPREAD – LSBs
V = +10V
V = +5V
T = +25°C
REF
DD
A
Figure 7. Typical DAC to DAC
Linearity Matching
0
–100
–70
–90
–80
–40
–60
–50
–30
–20
–10
10
3
10
4
10
5
10
6
FREQUENCY – Hz
V B/V C – dBs
OUT
OUT
V C = 20V pk-pk SINE WAVE
ALL OTHER REFERENCE INPUTS GROUNDED
DAC C LOADED WITH ALL 1s
ALL OTHER DACs LOADED WITH ALL 0s
REF
Figure 10. Channel-to-Channel
Isolation (1 DAC to 1 DAC)
1.0
0.0
10.0
0.3
0.1
4.0
0.2
2.0
0.6
0.4
0.5
0.7
0.8
0.9
8.0
6.0
V = +5V
T = +25°C
DD
A
V – Volts
REF
DNL – LSBs
Figure 5. Differential Nonlinearity
Error vs. V
REF
–50
–100
–85
–95
–90
–70
–80
–75
–65
–60
–55
10
2
10
3
10
4
10
5
FREQUENCY – Hz
THD – dBs
V = +5V
T = +25°C
V = 6V rms
OP AMP = AD713
DD
A
IN
Figure 8. Total Harmonic Distortion
vs. Frequency
0
–100
–70
–90
–80
–40
–60
–50
–30
–20
–10
10
3
10
4
10
5
10
6
FREQUENCY – Hz
V B/V C – dBs
OUT
OUT
V B GROUNDED
ALL OTHER REFERENCE INPUTS =
20V pk-pk SINE WAVE
DAC B LOADED WITH ALL 0s
ALL OTHER DACs LOADED WITH ALL 1s
REF
Figure 11. Channel-to-Channel
Isolation (1 DAC to All Other DACs)
REV. C