AD7910 Analog Devices, AD7910 Datasheet - Page 11

• Manufacturer Part Number: AD7910
• Description: 250 kSPS, 10-Bit ADC in 6 Lead SC70
• Manufacturer: Analog Devices

Specifications of AD7910

• Resolution (bits): 10bit
• # Chan: 1
• Sample Rate: 250kSPS
• Interface: Ser,SPI
• Analog Input Type: SE-Uni
• Ain Range: Uni Vdd
• Adc Architecture: SAR
• Pkg Type: SC70,SOP

Figure 12. THD vs. Analog Input Frequency for Various Source Impedances
–0.2
–0.4
–0.6
–0.8
–1.0
–10
–20
–30
–40
–50
–60
–70
–80
–90
1.0
0.8
0.6
0.4
0.2
0
10
0
V
TEMP = 25°C
f
V
SAMPLE
R
R
DD
DD
IN
IN
512
= 2.35V
= 3.6V
= 10kΩ
= 1kΩ
Figure 11. AD7920 DNL Performance
= 250kSPS
1024
INPUT FREQUENCY (kHz)
R
IN
1536
= 130Ω
CODE
2048
100
R
2560
IN
R
= 13Ω
IN
= 0Ω
3072
3584
4096
1000
Rev. C | Page 11 of 24
Figure 13. THD vs. Analog Input Frequency for Various Supply Voltages
–65
–70
–75
–80
–85
–90
10
V
DD
V
DD
= 5.25V
= 4.75V
INPUT FREQUENCY (kHz)
V
V
DD
DD
= 2.7V
= 2.35V
100
V
DD
AD7910/AD7920
= 3.6V
1000