AD7608 Analog Devices, AD7608 Datasheet - Page 16

no-image

AD7608

Manufacturer Part Number
AD7608
Description
8-Channel DAS with 18-Bit, Bipolar, Simultaneous Sampling ADC
Manufacturer
Analog Devices
Datasheet

Specifications of AD7608

Resolution (bits)
18bit
# Chan
8
Sample Rate
200kSPS
Interface
Par,Ser,SPI
Analog Input Type
Diff-Bip
Ain Range
Bip 10V,Bip 5.0V
Adc Architecture
SAR
Pkg Type
QFP

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AD7608BSTZ
Manufacturer:
NSC
Quantity:
141
Part Number:
AD7608BSTZ
Manufacturer:
Analog Devices Inc
Quantity:
10 000
Part Number:
AD7608BSTZ
Manufacturer:
ADI
Quantity:
20
Part Number:
AD7608BSTZ
Manufacturer:
ADI
Quantity:
2
Part Number:
AD7608BSTZ
Manufacturer:
ADI
Quantity:
300
Part Number:
AD7608BSTZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
AD7608BSTZ-RL
Manufacturer:
Analog Devices Inc
Quantity:
10 000
AD7608
Figure 22. THD vs. Input Frequency for Various Source Impedances, ±5 V Range
Figure 20. SNR vs. Input Frequency for Different Oversampling Rates, ±5 V Range
Figure 21. THD vs. Input Frequency for Various Source Impedances, ±10 V Range
–100
–110
–120
–100
–110
–120
105
100
–40
–50
–60
–70
–80
–90
95
90
85
80
–40
–50
–60
–70
–80
–90
10
1k
1k
±10V RANGE
AV
f
R
±5V RANGE
AV
f
R
SAMPLE
SAMPLE
OS × 64
OS × 32
OS × 16
SOURCE
SOURCE
NO OS
OS × 8
OS × 4
OS × 2
CC
CC
, V
, V
DRIVE
DRIVE
= 200kSPS
= 200kSPS
MATCHED ON Vx AND VxGND INPUTS
MATCHED ON Vx AND VxGND INPUTS
100
= 5V
= 5V
INPUT FREQUENCY (Hz)
INPUT FREQUENCY (Hz)
INPUT FREQUENCY (Hz)
AV
f
T
INTERNAL REFERENCE
±5V RANGE
SAMPLE
A
CC
= 25°C
10k
, V
10k
1k
DRIVE
CHANGES WITH OS RATE
= 5V
10k
105kΩ
48.7kΩ
23.7kΩ
10kΩ
5kΩ
1.2kΩ
100Ω
51Ω
0Ω
105kΩ
48.7kΩ
23.7kΩ
10kΩ
5kΩ
1.2kΩ
100Ω
51Ω
0Ω
100k
100k
100k
Rev. A | Page 16 of 32
Figure 24. Bipolar Zero Code Error Matching Between Channels
–100
–110
–120
–130
–140
–50
–60
–70
–80
–90
–0.8
–1.6
–2.4
–3.2
–4.0
–12
–16
4.0
3.2
2.4
1.6
0.8
16
12
–4
–8
0
8
4
0
–40
–40
0
AV
INTERNAL REFERENCE
AD7608 RECOMMENDED DECOUPLING USED
f
T
INTERFERER ON ALL UNSELECTED CHANNELS
Figure 23. Bipolar Zero Code Error vs. Temperature
SAMPLE
A
CC
= 25°C
, V
–25
–25
20
Figure 25. Channel-to-Channel Isolation
DRIVE
±10V RANGE
= 150kSPS
±5V RANGE
±5V RANGE
–10
–10
40
= 5V
±10V RANGE
NOISE FREQUENCY (kHz)
TEMPERATURE (°C)
TEMPERATURE (°C)
60
5
5
±10V RANGE
±5V RANGE
20
20
80
35
35
100
200kSPS
AV
EXTERNAL REFERENCE
200kSPS
AV
EXTERNAL REFERENCE
CC
CC
, V
, V
50
50
120
DRIVE
DRIVE
Data Sheet
= 5V
= 5V
65
65
140
80
80
160

Related parts for AD7608