AD7934-6 Analog Devices, AD7934-6 Datasheet - Page 10

• Manufacturer Part Number: AD7934-6
• Description: 4-Channel, 625 kSPS, 12-Bit Parallel ADC with a Sequencer
• Manufacturer: Analog Devices

Specifications of AD7934-6

• Resolution (bits): 12bit
• # Chan: 4
• Sample Rate: 625kSPS
• Interface: Par
• Analog Input Type: Diff-Uni,SE-Uni
• Ain Range: Uni (Vref),Uni (Vref) x 2
• Adc Architecture: SAR
• Pkg Type: SOP

AD7934-6
–0.5
–1.0
–1.5
–2.0
–2.5
–3.0
–3.5
–4.0
–4.5
–5.0
–1
12
11
10
4
3
2
1
0
9
8
7
6
0
0.25 0.50
0
0
SINGLE-ENDED MODE
0.5
0.5
Figure 9. DNL vs. V
0.75
V
DD
1.0
Figure 11. Offset vs. V
Figure 10. ENOB vs. V
= 5V
1.0
1.00
V
DD
DIFFERENTIAL MODE
1.5
SINGLE-ENDED MODE
1.25
= 3V
1.5
V
DIFFERENTIAL MODE
DD
V
V
V
REF
REF
REF
1.50
REF
2.0
= 3V
V
SINGLE-ENDED MODE
DD
for V
(V)
(V)
(V)
POSITIVE DNL
NEGATIVE DNL
2.0
V
= 3V
1.75
DD
V
DD
2.5
DD
REF
SINGLE-ENDED MODE
REF
= 5V
= 3 V
= 5V
2.00
2.5
3.0
2.25
3.0
3.5
2.50
2.75
4.0
3.5
Rev. B | Page 10 of 28
10000
Figure 12. Histogram of Codes for 10,000 Samples @ V
9000
8000
7000
6000
5000
4000
3000
2000
1000
Figure 13. CMRR vs. Ripple Frequency with V
120
110
100
90
80
70
60
2046
0
0
DIFFERENTIAL MODE
DIFFERENTIAL MODE
200
2047
with Internal Reference
RIPPLE FREQUENCY (kHz)
400
2048
CODES
9997
CODE
600
2049
3 CODES
800
DD
= 5 V and 3 V
2050
INTERNAL
1000
REF
DD
= 5 V
1200