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AD7293 Datasheet(PDF) 18 Page - Analog Devices

Part # AD7293
Description  12-Bit Power Amplifier Current Controller with ADC, DACs, and Temperature and Current Sensors
PDF  79 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7293 Datasheet(HTML) 18 Page - Analog Devices

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AD7293
Data Sheet
Rev. D | Page 18 of 79
1.0
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
CODE
40
540
1040
1540
2040
2540
3040
3540
4040
BIPOLAR DNL, –5V TO 0V
BIPOLAR INL, –5V TO 0V
BIPOLAR DNL, –4V TO +1V
BIPOLAR INL, –4V TO +1V
BIPOLAR DNL, 0V TO +5V
BIPOLAR INL, 0V TO +5V
Figure 14. Bipolar DAC INL and DNL
3
–3
–2
–1
0
1
2
CODE
40
540
1040
1540
2040
2540
3040
3540
4040
DNL UNIPOLAR, 2.5V TO 7.5V
INL UNIPOLAR, 2.5V TO 7.5V
DNL UNIPOLAR, 5V TO 10V
INL UNIPOLAR, 5V TO 10V
DNL UNIPOLAR, 0V TO 5V
INL UNIPOLAR, 0V TO 5V
Figure 15. Unipolar DAC INL and DNL
40
–40
–30
–20
–10
0
10
20
30
0
5
10
15
20
25
30
35
40
TIME (Seconds)
Figure 16. 0.1 Hz to 10 Hz DAC Output Noise, Input Code 0x000
400
0
50
100
150
200
250
300
350
0
500
1000
1500
2000
2500
3000
3500
4500
4000
CODE
EXTERNAL REFERENCE, 0V TO +5V, UNIPOLAR DAC
EXTERNAL REFERENCE, +5V TO +10V, UNIPOLAR DAC
INTERNAL REFERENCE, +5V TO +10V, UNIPOLAR
INTERNAL REFERENCE, 0V TO +5V, BIPOLAR DAC
INTERNAL REFERENCE, –5V TO 0V, BIPOLAR DAC
INTERNAL REFERENCE, 0V TO +5V, UNIPOLAR DAC
INTERNAL REFERENCE, –4V TO +1V, BIPOLAR DAC
EXTERNAL REFERENCE, 0V TO +5V, BIPOLAR DAC
EXTERNAL REFERENCE, –4V TO +1V, BIPOLAR DAC
EXTERNAL REFERENCE, –5V TO 0V, BIPOLAR DAC
Figure 17. 0.1 Hz to 10 Hz DAC Output Noise vs. Code
4.00
3.75
3.50
0
2
4
6
8
10
12
14
16
28
20
TIME (µs)
BIPOLAR, 0nF
BIPOLAR, 1nF
BIPOLAR, 10nF
UNIPOLAR, 0nF
UNIPOLAR, 1nF
UNIPOLAR, 10nF
Figure 18. Zoomed In Settling Time for a ¼ to ¾ Output Voltage Step
5.05
4.65
4.70
4.75
4.80
4.85
4.90
4.95
5.00
0
2
4
6
8
10
12
14
16
LOAD CURRENT (mA)
0V TO 5V, CODE 4095 (FULL SCALE)
0V TO 5V, CODE 3850 (FULL SCALE – 300mV)
Figure 19. DAC4 Output (Full Scale) vs. Load Current



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