EVAL-AD7920CB Analog Devices Inc, EVAL-AD7920CB Datasheet - Page 11

• Manufacturer Part Number: EVAL-AD7920CB
• Description: BOARD EVAL FOR AD7920
• Manufacturer: Analog Devices Inc

Specifications of EVAL-AD7920CB

• Rohs Status: RoHS non-compliant
• Number Of Adc's: 1
• Number Of Bits: 12
• Sampling Rate (per Second): 250k
• Data Interface: Serial
• Inputs Per Adc: 1 Single Ended
• Input Range: 0 ~ Vdd
• Power (typ) @ Conditions: 12.5mW @ 250kSPS, 5 V
• Voltage Supply Source: Single
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD7920
• Lead Free Status / RoHS Status: Not Compliant

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