AD7357 Analog Devices, AD7357 Datasheet - Page 9

• Manufacturer Part Number: AD7357
• Description: Differential Input, Dual, Simultaneous Sampling, 4.25 MSPS, 14-Bit, SAR ADC
• Manufacturer: Analog Devices

Specifications of AD7357

• Resolution (bits): 14bit
• # Chan: 2
• Sample Rate: 4.25MSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Bip,Diff-Uni,Usr-Defined Range/Offset
• Ain Range: Vcm ± Vref/2
• Adc Architecture: SAR
• Pkg Type: SOP

2.0480
2.0478
2.0476
2.0474
2.0472
2.0470
2.0468
2.0466
2.0464
2.0462
2.0460
2.0482
–0.5
–1.0
–1.5
–0.5
–1.0
–1.5
2.0
1.5
1.0
0.5
1.5
1.0
0.5
0
0
2.10
0
0
Figure 9. V
Figure 10. Linearity Error vs. SCLK Frequency
Figure 11. Linearity Error vs. External V
2.15
10
500
INL MAX
INL MAX
REF
2.20
20
vs. Reference Output Current Drive
SCLK FREQUENCY (MHz)
1000
EXTERNAL V
CURRENT LOAD (µA)
2.25
30
DNL MAX
DNL MAX
2.30
1500
40
DNL MIN
DNL MIN
REF
2.35
INL MIN
INL MIN
50
(V)
2000
2.40
60
REF
2500
2.45
70
2.50
3000
80
Rev. B | Page 9 of 20
10
8
7
6
5
4
9
8
7
6
5
1.8
1.8
2.0
2.0
Figure 12. Access Time vs. V
2.2
2.2
Figure 13. Hold Time vs. V
2.4
2.4
2.6
V
2.6
V
DRIVE
DRIVE
2.8
(V)
2.8
(V)
3.0
3.0
DRIVE
DRIVE
3.2
3.2
+125°C
+85°C
+25°C
–40°C
+125°C
+85°C
+25°C
–40°C
3.4
3.4
AD7357
3.6
3.6