AD7928 Analog Devices, AD7928 Datasheet - Page 14

• Manufacturer Part Number: AD7928
• Description: 8-Channel, 1 MSPS, 12-Bit ADC with Sequencer in 20-Lead TSSOP
• Manufacturer: Analog Devices

Specifications of AD7928

• Resolution (bits): 12bit
• # Chan: 8
• Sample Rate: 1MSPS
• Interface: Ser,SPI
• Analog Input Type: SE-Uni
• Ain Range: Uni (Vref),Uni (Vref) x 2
• Adc Architecture: SAR
• Pkg Type: SOP

AD7908/AD7918/AD7928
–0.2
–0.4
–0.6
–0.8
–1.0
–50
–55
–60
–65
–70
–75
–80
–85
–90
1.0
0.8
0.6
0.4
0.2
0
10
0
Figure 8. AD7928 THD vs. Analog Input Frequency for
f
T
RANGE = 0V TO REF
AV
SAMPLE
AV
TEMPERATURE = 25°C
A
DD
= 25°C
DD
512
= 5.25V
= V
= 1MSPS
DRIVE
1024
Figure 9. AD7928 Typical INL
Various Source Impedances
= 5V
INPUT FREQUENCY (kHz)
1536
IN
R
IN
= 10Ω
R
CODE
R
2048
IN
100
IN
= 1000Ω
= 50Ω
R
IN
2560
= 100Ω
3072
3584
1000
4096
Rev. D | Page 14 of 32
–0.2
–0.4
–0.6
–0.8
–1.0
1.0
0.8
0.6
0.4
0.2
0
0
AV
TEMPERATURE = 25°C
512
DD
= V
Figure 10. AD7928 Typical DNL
DRIVE
1024
= 5V
1536
CODE
2048
2560
3072
3584
4096