参数资料
型号: AD7739BRU-REEL
厂商: ANALOG DEVICES INC
元件分类: ADC
英文描述: 8-Channel, High Throughput, 24-Bit Sigma-Delta ADC
中文描述: 8-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO24
封装: MS-153AD, TSSOP-24
文件页数: 3/32页
文件大小: 380K
代理商: AD7739BRU-REEL
AD7739
AD7739—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%; REFIN(+) = 2.5 V; REFIN(–) = 0 V,
AINCOM = 2.5 V; Internal Buffer On, AIN Range = ±1.25 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)
2
±5
Offset Error (Unipolar, Bipolar)
3
±10
Offset Drift vs. Temperature
1
Gain Error
3
Gain Drift vs. Temperature
1
Positive Full-Scale Error
3
Positive Full-Scale Drift vs. Temp.
1
Bipolar Negative Full-Scale Error
4
±0.0030
Common-Mode Rejection
80
95
Power Supply Rejection
70
80
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
±0.0015
Offset Error (Unipolar, Bipolar)
5
±1mV
Offset Drift vs. Temperature
±1.5
Gain Error
3
±0.2
Gain Drift vs. Temperature
±2.5
Positive Full-Scale Error
3
±0.2
Positive Full-Scale Drift vs. Temp.
±2.5
Bipolar Negative Full-Scale Error
4
±0.0030
Common-Mode Rejection
75
Power Supply Rejection
65
ANALOG INPUTS
Analog Input Voltage
1, 6
±2.5 V Range
±2.5
+2.5 V Range
0 to +2.5
±1.25 V Range
±1.25
+1.25 V Range
0 to +1.25
±0.625 V Range
±0.625
+0.625 V Range
0 to +0.625
AIN, AINCOM Common-Mode/
Absolute Voltage
1
Analog Input Slew Rate
1, 7
AIN, AINCOM Input Current
1, 8
1
Rev. 0 | Page 3 of 32
Max
Unit
Test Conditions/Comments
11840
Hz
Bits
Configure via Conv. Time Register
FW
12 (Conversion Time
290 μs)
±0.0015
±25
±0.2
±2.5
±0.2
±2.5
% of FSR
μV
nV/°C
%
ppm of FS/°C
% of FSR
ppm of FS/°C
% of FSR
dB
dB
Before Calibration
Before Calibration
Before Calibration
After Calibration
At DC, AIN = 1 V
At DC, AIN = 1 V
15133
Hz
Bits
Configure via Conv. Time Register
FW
12 (Conversion Time
290 μs)
AV
DD
– 0.3
% of FSR
mV
μV/°C
%
ppm of FS/°C
% of FSR
ppm of FS/°C
% of FSR
dB
dB
V
V
V
V
V
V
V
Before Calibration
Before Calibration
Before Calibration
After Calibration
At DC, AIN = 1 V
At DC, AIN = 1 V
0.2
0.5
5
V/Conv. Time
nA
AIN Absolute Voltage > 3 V
Only One Channel, Chop Disabled
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