AD7687 Analog Devices, AD7687 Datasheet - Page 12

• Manufacturer Part Number: AD7687
• Manufacturer: Analog Devices

Specifications of AD7687

• Resolution (bits): 16bit
• # Chan: 1
• Sample Rate: 250kSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (2Vref) p-p
• Adc Architecture: SAR
• Pkg Type: CSP,SOP

AD7687
1000
1000
100
750
500
250
750
500
250
99
98
97
96
95
94
93
92
91
90
–10
0
0
–55
2.3
f
S
Figure 21. Power-Down Currents vs. Temperature
= 100kSPS
–35
2.7
Figure 20. Operating Currents vs. Supply
–8
–15
Figure 19. SNR vs. Input Level
3.1
5
TEMPERATURE (°C)
INPUT LEVEL (dB)
3.5
–6
SUPPLY (V)
25
3.9
45
–4
4.3
65
VDD
VIO
VREF = 2.5V
VDD + VIO
VREF = 5V
4.7
85
–2
5.1
105
125
5.5
Rev. B | Page 12 of 28
0
1000
750
500
250
25
20
15
10
–2
–4
–6
5
0
6
4
2
0
0
–55
–55
0
Figure 24. t
Figure 23. Offset and Gain Error vs. Temperature
–35
–35
Figure 22. Operating Currents vs. Temperature
20
VDD = 3.3V, 25°C
VDD = 2.5V, 25°C
–15
–15
DSDO
Delay vs. Capacitance Load and Supply
SDO CAPACITIVE LOAD (pF)
VDD = 3.3V, 85°C
VDD = 2.5V
40
VDD = 5V
5
5
TEMPERATURE (°C)
TEMPERATURE ( ° C)
VIO
VDD = 2.5V, 85°C
25
25
60
OFFSET ERROR
45
45
VDD = 5V, 25°C
65
80
65
GAIN ERROR
Data Sheet
VDD = 5V, 85°C
85
f
85
S
= 100kSPS
100
105
105
125
120
125