CED1Z AD [Analog Devices], CED1Z Datasheet - Page 19

• Manufacturer Part Number: CED1Z
• Description: 8-/6-/4-Channel DAS with 16-Bit,Bipolar Input,Simultaneous Sampling ADC
• Manufacturer: AD [Analog Devices]

Figure 24. THD vs. Input Frequency for Various Source Impedances,
Figure 25. THD vs. Input Frequency for Various Source Impedances,
Figure 23. Bipolar Zero Code Error Matching Between Channels
–100
–110
–120
–100
–110
–120
–40
–50
–60
–70
–80
–90
–40
–50
–60
–70
–80
–90
–1
–2
–3
–4
4
3
2
1
0
–40
1k
1k
±10V RANGE
AV
F
R
±5V RANGE
AV
F
R
SAMPLE
SAMPLE
SOURCE
SOURCE
CC
CC
–25
, V
, V
DRIVE
DRIVE
10V RANGE
= 200kSPS
= 200kSPS
5V RANGE
MATCHED ON Vx AND VxGND INPUTS
MATCHED ON Vx AND VxGND INPUTS
–10
= +5V
= +5V
INPUT FREQUENCY (Hz)
INPUT FREQUENCY (Hz)
TEMPERATURE (°C)
5
±10 V Range
±5 V Range
20
10k
10k
35
200kSPS
AV
EXTERNAL REFERENCE
CC
, V
50
DRIVE
= 5V
65
105kΩ
48.7kΩ
23.7kΩ
10kΩ
5kΩ
1.2kΩ
100Ω
51Ω
0Ω
105kΩ
48.7kΩ
23.7kΩ
10kΩ
5kΩ
1.2kΩ
100Ω
51Ω
0Ω
80
100k
100k
Rev. 0 | Page 19 of 36
Figure 27. SNR vs. Input Frequency for Different Oversampling Rates, ±10 V Range
Figure 26. SNR vs. Input Frequency for Different Oversampling Rates, ±5 V Range
–100
–110
–120
–130
–140
100
–50
–60
–70
–80
–90
98
96
94
92
90
88
86
84
82
80
98
96
94
92
90
88
86
84
82
80
10
10
0
AV
INTERNAL REFERENCE
AD7606 RECOMMENDED DECOUPLING USED
F
T
INTERFERER ON ALL UNSELECTED CHANNELS
SAMPLE
A
CC
= 25°C
, V
20
OS BY 64
OS BY 32
OS BY 16
OS BY 8
OS BY 4
OS BY 2
NO OS
OS BY 64
OS BY 32
OS BY 16
OS BY 8
OS BY 4
OS BY 2
NO OS
Figure 28. Channel-to-Channel Isolation
DRIVE
= 150kSPS
AD7606/AD7606-6/AD7606-4
100
100
40
= 5V
NOISE FREQUENCY (kHz)
INPUT FREQUENCY (Hz)
INPUT FREQUENCY (Hz)
60
±10V RANGE
±5V RANGE
AV
F
T
INTERNAL REFERENCE
±5V RANGE
AV
F
T
INTERNAL REFERENCE
±10V RANGE
SAMPLE
A
SAMPLE
A
CC
CC
= 25°C
= 25°C
1k
1k
80
, V
, V
DRIVE
DRIVE
CHANGES WITH OS RATE
CHANGES WITH OS RATE
100
= 5V
= 5V
10k
10k
120
140
100k
100k
160