AD7356 Analog Devices, AD7356 Datasheet - Page 8

• Manufacturer Part Number: AD7356
• Description: Differential Input, Dual, Simultaneous Sampling, 5 MSPS, 12-Bit, SAR ADC
• Manufacturer: Analog Devices

Specifications of AD7356

• Resolution (bits): 12bit
• # Chan: 2
• Sample Rate: 5MSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (Vref) p-p,2.048 V p-p
• Adc Architecture: SAR
• Pkg Type: SOP

AD7356
TYPICAL PERFORMANCE CHARACTERISTICS
–100
–120
–0.2
–0.4
–0.6
–0.8
–1.0
–0.2
–0.4
–0.6
–0.8
–1.0
–20
–40
–60
–80
1.0
0.8
0.6
0.4
0.2
1.0
0.8
0.6
0.4
0.2
0
0
0
0
0
0
250
500
500
500
1000
1000
Figure 4. Typical DNL Error
Figure 5. Typical INL Error
750
Figure 3. Typical FFT
1500
1500
FREQUENCY (kHz)
1000 1250 1500 1750 2000 2249 2499
2000
2000
CODE
CODE
2500
2500
3000
3000
16,384 POINT FFT
f
f
SNR = 71.8dB
SINAD = 71.6dB
THD = –83.5dB
SAMPLE
IN
= 1MHz
3500
3500
= 5MSPS
4000
4000
Rev. A | Page 8 of 20
Figure 8. PSRR vs. Supply Ripple Frequency with No Supply Decoupling
60,000
50,000
40,000
30,000
20,000
10,000
–60
–65
–70
–75
–80
–85
–90
73
72
71
70
69
68
67
66
65
0
0
0
Figure 6. Histogram of Codes for 65,000 Samples
2044
Figure 7. SNR vs. Analog Input Frequency
1000
2045
5
SUPPLY RIPPLE FREQUENCY (MHz)
ANALOG INPUT FREQUENCY (kHz)
93 HITS
2046
2000
10
CODE
2047
3000
15
20 HITS
2048
2049
4000
20
2050
5000
25