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參數資料
| 型號： | AD7732BRU |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | 2-Channel, +-10 V Input Range, High Throughput, 24-Bit SIGMA- ADC |
| 中文描述： | 2-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO28 |
| 封裝： | MO-153AE, TSSOP-28 |
| 文件頁數： | 3/32頁 |
| 文件大小： | 1576K |
| 代理商： | AD7732BRU |
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AD7732
AD7732—SPECIFICATIONS
Table 1. (–40°C to +105°C; AV
DD
= 5 V ± 5%; DV
DD
= 2.7 V to 3.6 V, or 5 V ± 5%; BIAS (all), REFIN(+) = 2.5 V;
REFIN(–) = AGND; RA, RB, RC, RD open circuit; AIN Range = ±10 V; f
MCLKIN
= 6.144 MHz; unless otherwise noted.)
Parameter
Min
Typ
ADC PERFORMANCE
CHOPPING ENABLED
Conversion Time Rate
372
No Missing Codes
1, 2
24
Output Noise
See
Table 4
Resolution
See Table 5
and Table 6
Integral Nonlinearity (INL)
1, 2, 3
±0.0003
Integral Nonlinearity (INL)
2, 3
±0.0010
Offset Error (Unipolar, Bipolar)
4
Offset Drift vs. Temperature
1
Gain Error
3
Gain Drift vs. Temperature
1
Positive Full-Scale Error
4
Positive Full-Scale Drift vs. Temp.
1
Bipolar Negative Full-Scale Error
5
±0.0060
Common-Mode Rejection
50
65
Power Supply Sensitivity
±4
Channel-to-Channel Isolation
100
ADC PERFORMANCE
CHOPPING DISABLED
Conversion Time Rate
737
No Missing Codes
1, 2
24
Output Noise
See Table 7
Resolution
See Table 8
and Table 9
Integral Nonlinearity (INL)
2, 3
±0.0015
Offset Error (Unipolar, Bipolar)
6
±10
Offset Drift vs. Temperature
±25
Gain Error
4
±0.5
Gain Drift vs. Temperature
±5.3
Positive Full-Scale Error
4
±0.5
Positive Full-Scale Drift vs. Temp.
±4
Bipolar Negative Full-Scale Error
5
±0.0060
Common-Mode Rejection
55
Power Supply Sensitivity
±4
Channel-to-Channel Isolation
100
ANALOG INPUTS
Analog Input Differential Voltage
7
±10 V Range
±
10
0 V to +10 V Range
0 to +10
±5 V Range
±
5
0 V to +5 V Range
0 to +5
AIN Absolute Voltage
1, 2, 8
–16.5
BIAS Voltage
1
0
2.5
RA, RB, RC, RD Voltage
1
–10.5
AIN Impedance
1, 9
100
124
AIN Pin Impedance
1, 9
87.5
108.5
Rev. 0 | Page 3 of 32
Max
Unit
Test Conditions/Comments
12190
Hz
Bits
Configure via Conv. Time Register
FW ≥ 6 (Conversion Time ≥ 165 μs)
±0.0015
±0.0030
±10
±2.5
±0.7
±3.2
±0.7
±3
±10
% of FSR
% of FSR
mV
μV/°C
%
ppm of FS/°C
% of FSR
ppm of FS/°C
% of FSR
dB
LSB
16
dB
f
MCLKIN
= 2.5 MHz, V
CM
= 0 V
f
MCLKIN
= 6.144 MHz, V
CM
= 0 V
Before Calibration
Before Calibration
Before Calibration
After Calibration
At DC
At DC, AIN = 7 V, AV
DD
= 5 V ± 5%
At DC, Maximum ±16.5 V AIN Voltage
15437
Hz
Bits
Configure via Conv. Time Register
FW ≥ 8 (Conversion Time ≥ 117 μs)
+16.5
AV
DD
+20
% of FSR
mV
μV/°C
%
ppm of FS/°C
% of FSR
ppm of FS/°C
% of FSR
dB
LSB
16
dB
V
V
V
V
V
V
V
k
k
Before Calibration
Before Calibration
Before Calibration
After Calibration
At DC
At DC, AIN = 7 V, AV
DD
= 5 V ± 5%
At DC, Maximum ±16.5 V AIN Voltage
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