AD7732 Analog Devices, AD7732 Datasheet - Page 9

• Manufacturer Part Number: AD7732
• Manufacturer: Analog Devices

Specifications of AD7732

• Resolution (bits): 24bit
• # Chan: 2
• Sample Rate: 3.05MSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Bip,Diff-Uni
• Ain Range: Bip 10V,Bip 5.0V,Uni 10V,Uni 5.0V
• Adc Architecture: Sigma-Delta
• Pkg Type: SOP

TYPICAL PERFORMANCE CHARACTERISTICS
Figure 7. Typical INL vs. MCLK Frequency, ±10 V Differential Signal, AIN
25
24
23
22
21
20
19
18
17
16
25
24
23
22
21
20
19
18
17
16
15
10
5
0
Figure 6. No Missing Codes Performance, Chopping Disabled
Figure 5. No Missing Codes Performance, Chopping Enabled
1
1
0
Common-Mode Voltage = 0 V, BIAS(+) = BIAS(–) = 2.5 V
CHOP = 1
CHOP = 0
V
2
2
CM
1
= 0V
3
3
2
MCLK FREQUENCY – MHz
4
4
FILTER WORD
FILTER WORD
3
5
5
6
6
4
7
7
5
8
8
6
9
9
10
10
7
Rev. A | Page 9 of 32
Figure 9. Typical INL vs. AIN Common-Mode Voltage, ±10 V Differential
Figure 8. Typical INL vs. AIN Differential Voltage, AIN Common-Mode
60
50
40
30
20
10
60
50
40
30
20
10
20
15
10
0
0
5
0
–20
–15
Voltage = 0 V, MCLK = 6.144 MHz, BIAS(+) = BIAS(–) = 2.5 V
0
Figure 10. Typical Supply Current vs. MCLK Frequency,
Signal, MCLK = 6.144 MHz, BIAS(+) = BIAS(–) = 2.5 V
MCLK = 6.144MHz
V
–15
CM
1
–10
= 0V
AIN COMMON-MODE VOLTAGE – V
–10
AIN DIFFERENTIAL VOLTAGE – V
Normal Operation, Converting
2
MCLK FREQUENCY – MHz
–5
–5
3
0
0
4
5
5
MCLK = 6.144MHz
5
10
10
6
15
AD7732
20
15
7