AD9281 Analog Devices, AD9281 Datasheet - Page 6
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AD9281
Manufacturer Part Number
AD9281
Description
Dual Channel 8-Bit Resolution CMOS ADC
Manufacturer
Analog Devices
Datasheet
1.AD9281.pdf
(15 pages)
Specifications of AD9281
Resolution (bits)
8bit
# Chan
2
Sample Rate
28MSPS
Interface
Par
Analog Input Type
Diff-Uni,SE-Uni
Ain Range
(Vref) p-p,1 V p-p,2 V p-p,Uni (Vref),Uni 1.0V,Uni 2.0V
Adc Architecture
Pipelined
Pkg Type
SOP
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Company
Part Number
Manufacturer
Quantity
Price
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AD9281ARS
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Company:
Part Number:
AD9281ARSZ
Manufacturer:
ADI
Quantity:
770
Part Number:
AD9281ARSZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
AD9281ARSZRL
Manufacturer:
ADI/亚德诺
Quantity:
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AD9281
(AVDD = +3 V, DVDD = +3 V, F
–0.20
–0.40
–0.60
–0.80
–1.00
1.00
0.80
0.60
0.40
0.20
0.00
Figure 5. Input Bias Current vs. Input Voltage
–1
–1
1
0
1
0
–1.0
0
0
–Typical Characteristic Curves
16 32 48 64 80 96 112 128 144 160 176 192 208 224 240
16 32 48 64 80 96 112 128 144 160 176 192 208 224 240
–0.5
Figure 4. Typical DNL
Figure 3. Typical INL
INPUT VOLTAGE – Volts
0
CODE OFFSET
CODE OFFSET
S
= 28 MHz (50% duty cycle), 2 V input span from –0.5 V to +1.5 V, 2 V internal reference unless otherwise noted)
0.5
1.0
1.5
2.0
–6–
–30
–35
–40
–45
–50
–55
–60
–65
–70
1.0E+05
1.0E+05
1.0E+05
55
50
45
40
35
30
25
55
50
45
40
35
30
25
Figure 7. SINAD vs. Input Frequency
Figure 6. SNR vs. Input Frequency
Figure 8. THD vs. Input Frequency
1.0E+06
1.0E+06
1.0E+06
INPUT FREQUENCY – Hz
INPUT FREQUENCY – Hz
INPUT FREQUENCY – Hz
–6dB
–20dB
–0.5dB
–0.5dB
–20dB
–6dB
1.0E+07
1.0E+07
1.0E+07
–0.5dB
–6dB
–20dB
1.0E+08
1.0E+08
1.0E+08
REV. F