AD7274 Analog Devices, AD7274 Datasheet - Page 11
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AD7274
Manufacturer Part Number
AD7274
Description
3 MSPS 12-Bit A/D Converter in TSOT and MSOP Packages
Manufacturer
Analog Devices
Datasheet
1.AD7273.pdf
(28 pages)
Specifications of AD7274
Resolution (bits)
12bit
# Chan
1
Sample Rate
3MSPS
Interface
Ser,SPI
Analog Input Type
SE-Uni
Ain Range
(Vref) p-p,Uni (Vref)
Adc Architecture
SAR
Pkg Type
SOP,SOT
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AD7274BRMZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 10. AD7274 Dynamic Performance at 3 MSPS, Input Tone = 1 MHz
Figure 11. AD7273 Dynamic Performance at 3 MSP, Input Tone = 1 MHz
–100
–120
–100
–120
Figure 12. AD7274 SINAD vs. Analog Input Frequency at 3 MSPS
72.2
72.0
71.8
71.6
71.4
71.2
71.0
70.8
70.6
70.4
70.2
70.0
69.8
69.6
69.4
69.2
69.0
–20
–40
–60
–80
–20
–40
–60
–80
100
for Various Supply Voltages, SCLK Frequency = 48 MHz
16384 POINT FFT
F
F
SINAD = 71.05
THD = –80.9
SFDR = –82.2
16384 POINT FFT
F
F
SINAD = 66.56
THD = –77.4
SFDR = –78.2
SAMPLE
IN
SAMPLE
IN
= 1MHz
= 1MHz
= 3MSPS
= 3MSPS
INPUT FREQUENCY (kHz)
FREQUENCY (kHz)
FREQUENCY (kHz)
V
DD
F
= 2.5V
SAMPLE
V
V
1000
DD
DD
= 3MSPS
= 3.6V
= 3V
1500
Rev. 0 | Page 11 of 28
Figure 15. THD vs. Analog Input Frequency at 3 MSPS for Various Source
72.2
72.0
71.8
71.6
71.4
71.2
71.0
70.8
70.6
70.4
70.2
–72
–74
–76
–78
–80
–82
–84
–86
–88
–90
–40
–50
–60
–70
–80
–90
Figure 13. AD7274 SNR vs. Analog Input Frequency at 3 MSPS
Impedance, SCLK Frequency = 48 MHz, Supply Voltage = 3 V
100
100
100
for Various Supply Voltages, SCLK Frequency = 48 MHz
for Various Supply Voltages, SCLK Frequency = 48 MHz
Figure 14. THD vs. Analog Input Frequency at 3 MSPS
INPUT FREQUENCY (kHz)
INPUT FREQUENCY (kHz)
INPUT FREQUENCY (kHz)
V
R
DD
V
IN
DD
V
= 3.6V
DD
= 100 Ω
= 3V
= 2.5V
R
IN
AD7273/AD7274
= 10 Ω
V
F
SAMPLE
DD
= 3V
R
V
V
1000
1000
1000
IN
= 3MSPS
DD
DD
= 0 Ω
= 3.6V
= 2.5V
1500
1500
1500