AD7294 Analog Devices, AD7294 Datasheet - Page 14

• Manufacturer Part Number: AD7294
• Description: 12-Bit Monitor and Control System with Multichannel ADC, DACs, Temperature Sensor, and Current Sense
• Manufacturer: Analog Devices

Specifications of AD7294

• Resolution (bits): 12bit
• # Chan: 9
• Sample Rate: 200kSPS
• Interface: I²C/Ser 2-Wire,Ser
• Analog Input Type: Diff-Uni,SE-Uni
• Ain Range: (Vref) p-p,2 V p-p,Uni (Vref),Uni (Vref) x 2
• Adc Architecture: SAR
• Pkg Type: CSP

AD7294
TYPICAL PERFORMANCE CHARACTERISTICS
–100
–120
–100
–120
–100
–120
–20
–40
–60
–80
–20
–40
–60
–80
–20
–40
–60
–80
Figure 7. Signal-to-Noise Ratio Single-Ended, 2 × V
20
20
20
0
0
0
Figure 6. Signal-to-Noise Ratio Single-Ended, V
0
0
0
Figure 8. Signal-to-Noise Ratio Differential, V
8192 POINT FFT
AV
V
F
F
SINGLE ENDED
SNR = 71dB, THD = –82dB
8192 POINT FFT
AV
V
F
F
SINGLE ENDED
SNR = 72dB, THD = –80dB
8192 POINT FFT
AV
V
F
F
DIFFERENTIAL
SNR = 72dB, THD = –86dB
SAMPLE
IN
SAMPLE
IN
SAMPLE
IN
DRIVE
DRIVE
DRIVE
DD
DD
DD
= 10kHz, F
= 10kHz, F
= 10kHz, F
= DV
= DV
= DV
= 5V, V
= 5V, 2V
= 5V, V
2000
2000
2000
= 22.22kSPS
= 22.22kSPS
= 22.22kSPS
DD
DD
DD
= 5V
SCLK
= 5V
SCLK
= 5V
SCLK
REF
REF
REF
RANGE
RANGE
4000
4000
4000
= 400kHz
= 400kHz
= 400kHz
RANGE
FREQUENCY (kHz)
FREQUENCY (kHz)
FREQUENCY (kHz)
6000
6000
6000
8000
8000
8000
REF
REF
REF
Range
Range
10000
10000
10000
Range
Rev. H | Page 14 of 48
–100
–120
–0.2
–0.4
–0.6
–0.8
–1.0
–0.2
–0.4
–0.6
–0.8
–1.0
–20
–40
–60
–80
1.0
0.8
0.6
0.4
0.2
1.0
0.8
0.6
0.4
0.2
20
Figure 9. Signal-to-Noise Ratio Differential, 2 × V
0
0
0
0
0
0
T
V
V
V
SINGLE-ENDED
8192 POINT FFT
AV
V
F
F
DIFFERENTIAL
SNR = 73dB, THD = –82dB
256
256
A
DRIVE
REF
DD
SAMPLE
IN
DRIVE
DD
= 25°C
Figure 11. ADC DNL Single-Ended, V
Figure 10. ADC INL Single-Ended, V
= 10kHz, F
512
512
= 5V
= 2.5V
= DV
= 5V, V
= 5V, 2V
2000
768
768
= 22.22kSPS
DD
1024
1024
= 5V
SCLK
REF
REF
1280
1280
RANGE
4000
= 400kHz
1536
1536
RANGE
FREQUENCY (kHz)
1792
1792
CODE
CODE
2048
2048
6000
2304
2304
T
V
V
V
SINGLE-ENDED
2560
2560
A
DRIVE
REF
DD
= 25°C
= 5V
2816
2816
= 2.5V
= 5V, V
8000
REF
REF
3072
3072
Range
Range
3328
Data Sheet
3328
REF
REF
3584
3584
RANGE
10000
Range
3840
3840
4096
4096