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AD7303BR Datasheet(PDF) 6 Page - Analog Devices

Part # AD7303BR
Description  2.7 V to 5.5 V, Serial Input, Dual Voltage Output 8-Bit DAC
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7303BR Datasheet(HTML) 6 Page - Analog Devices

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AD7303–Typical Performance Characteristics
–6–
REV. 0
VDD = +5V AND +3V
INTERNAL REFERENCE
TA = 25 C
DAC LOADED WITH 00HEX
SINK CURRENT – mA
800
0
08
24
6
720
400
249
160
80
640
560
320
480
Figure 3. Output Sink Current Capa-
bility with VDD = 3 V and VDD = 5 V
REFERENCE VOLTAGE – Volts
0.5
0
1
1.2
2.8
1.4
1.6
1.8
2.2
2.4
2.6
2
0.45
0.25
0.15
0.1
0.05
0.4
0.35
0.2
0.3
VDD = +5V
TA = 25 C
INL ERROR
DNL ERROR
Figure 6. Relative Accuracy vs.
External Reference
FREQUENCY – kHz
1
10
10000
100
1000
10
5
–40
0
–5
–10
–15
–20
–25
–30
–35
VDD = +5V
TA = 25°C
EXTERNAL SINE WAVE REFERENCE
DAC REGISTER LOADED WITH FFHEX
Figure 9. Large Scale Signal
Frequency Response
SOURCE CURRENT – mA
02
8
46
5
4.92
4.2
4.84
4.76
4.68
4.6
4.52
4.44
4.36
4.28
VDD = +5V
TA = 25°C
INTERNAL REFERENCE
DAC REGISTER LOADED WITH FFHEX
Figure 4. Output Source Current
Capability with VDD = 5 V
–60 –40 –20
0
20 40
60
80 100 120 140
TEMPERATURE – C
5
3.5
2
4.5
4
3
2.5
LOGIC INPUTS = VDD OR GND
INTERNAL REFERENCE
VDD = +5V
LOGIC INPUTS = VIH OR VIL
Figure 7. Supply Current vs.
Temperature
T
SYNC
VOUT
VDD = +3V
INTERNAL VOLTAGE REFERENCE
FULL SCALE CODE CHANGE 00H-FFH
TA = 25°C
1
3
2
VOUT
CH1 5V, CH2 1V, CH3 20mV
TIME BASE = 200ns/div
Figure 10. Full-Scale Settling Time
SOURCE CURRENT – mA
3.5
1
01
8
23
4567
3.25
2.5
2.25
1.75
1.25
3
2.75
2
1.5
VDD = +3V
TA = 25°C
INTERNAL REFERENCE
DAC REGISTER LOADED WITH FFHEX
Figure 5. Output Source Current
Capability with VDD = 3 V
VDD – Volts
5.5
1.5
5
3.5
3
2.5
2
4.5
4
2.5
3
5.5
3.5
4
4.5
5
LOGIC INPUTS = VDD OR GND
LOGIC INPUTS = VIH OR VIL
TA = 25°C
INTERNAL REFERENCE
Figure 8. Supply Current vs.
Supply Voltage
SYNC
VOUT
POWER UP TIME
VDD = +5V
INTERNAL REFERENCE
BOTH DACS IN POWER DOWN INITIALLY
1
2
CH1 = 2V/div, CH2 = 5V/div,
TIME BASE = 2µs/div
Figure 11. Exiting Power-Down (Full
Power-Down)


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