AD7685 Analog Devices, AD7685 Datasheet - Page 12

• Manufacturer Part Number: AD7685
• Manufacturer: Analog Devices

Specifications of AD7685

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

AD7685
1000
1000
95
94
93
92
91
90
750
500
250
750
500
250
–10
0
0
–55
2.3
Figure 21. Power-Down Currents vs. Temperature
–35
2.7
Figure 20. Operating Currents vs. Supply
–8
Figure 19. SNR and THD vs. Input Level
THD
–15
3.1
SNR
5
INPUT LEVEL (dB)
TEMPERATURE (°C)
3.5
–6
VDD
VIO
SUPPLY (V)
25
3.9
45
–4
VDD + VIO
4.3
65
4.7
85
–2
f
S
= 100kSPS
5.1
105
0
125
5.5
–105
–110
–115
–120
Rev. C | Page 12 of 28
1000
750
500
250
–1
–2
–3
–4
–5
–6
25
20
15
10
0
6
5
4
3
2
1
0
–55
–55
5
0
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
–15
–15
VDD = 2.5V, 25°C
DSDO
SDO CAPACITIVE LOAD (pF)
Delay vs. Capacitance Load and Supply
VDD = 3.3V, 85°C
40
5
5
TEMPERATURE (°C)
TEMPERATURE (°C)
VDD = 2.5V
VDD = 5V
VDD = 2.5V, 85°C
VIO
25
25
60
45
45
OFFSET ERROR
VDD = 5V, 25°C
65
65
80
GAIN ERROR
VDD = 5V, 85°C
85
85
f
S
100
= 100kSPS
105
105
125
125
120