EVAL-AD7949EDZ View Datasheet(PDF) - Analog Devices
Part Name
Description
MFG CO.
'EVAL-AD7949EDZ' PDF : 32 Pages View PDF
AD7949
–60
–70
–80
–90
–100
–110
–120
0
VDD = VREF = 5V, –0.5dB
VDD = VREF = 2.5V, –0.5dB
VDD = VREF = 2.5V, –10dB
VDD = VREF = 5V, –10dB
50
100
150
200
FREQUENCY (kHz)
Figure 17. THD vs. Frequency
90
89
fIN = 20kHz
88
87
86
VDD = VREF = 5V
85
84
VDD = VREF = 2.5V
83
82
81
80
79
78
–10
–8
–6
–4
–2
0
INPUT LEVEL (dB)
Figure 18. SNR vs. Input Level
2
1
0
–1
UNIPOLAR ZERO
UNIPOLAR GAIN
BIPOLAR ZERO
BIPOLAR GAIN
–2
–55 –35 –15
5 25 45 65
TEMPERATURE (°C)
85 105 125
Figure 19. Offset and Gain Errors vs. Temperature
Data Sheet
2750
2500
2250
2000
2.5V INTERNAL REF
4.096V INTERNAL REF
INTERNAL BUFFER, TEMP ON
INTERNAL BUFFER, TEMP OFF
EXTERNAL REF, TEMP ON
EXTERNAL REF, TEMP OFF
VIO
100
fS = 200kSPS
90
80
70
1750
60
1500
50
1250
40
1000
30
750
2.5
3.0
3.5
4.0
4.5
5.0
VDD SUPPLY (V)
Figure 20. Operating Currents vs. Supply
3000
2750
fS = 200kSPS
20
5.5
180
160
2500
140
VDD = 5V, INTERNAL 4.096V REF
2250
120
2000
100
VDD = 5V, EXTERNAL REF
1750
80
1500
VDD = 2.5, EXTERNAL REF
VIO
60
1250
40
1000
–55
–35 –15
5 25 45 65
TEMPERATURE (°C)
85 105
Figure 21. Operating Currents vs. Temperature
20
125
25
20
VDD = 2.5V, 85°C
15
VDD = 2.5V, 25°C
10
VDD = 5V, 85°C
5
VDD = 5V, 25°C
VDD = 3.3V, 85°C
VDD = 3.3V, 25°C
0
0
20
40
60
80
100
120
SDO CAPACITIVE LOAD (pF)
Figure 22. tDSDO Delay vs. SDO Capacitance Load and Supply
Rev. F | Page 12 of 32
Share Link: 
