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AD7734 Datasheet(PDF) 3 Page - Analog Devices

No. de pieza AD7734
Descripción Electrónicos  4-Channel, -10 V Input Range, High Throughput, 24-Bit sigma ADC
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Fabricante Electrónico  AD [Analog Devices]
Página de inicio  http://www.analog.com
Logo AD - Analog Devices

AD7734 Datasheet(HTML) 3 Page - Analog Devices

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AD7734
Rev. 0 | Page 3 of 32
AD7734—SPECIFICATIONS
Table 1. (–40°C to +105°C; AVDD = 5 V ± 5%; DVDD = 2.7 V to 3.6 V, or 5 V ± 5%; BIAS0 to BIAS3, BIASHI, REFIN(+) = 2.5 V;
BIASLO, REFIN(–) = AGND; AIN Range = ±10 V; fMCLKIN = 6.144 MHz; unless otherwise noted.)
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
ADC PERFORMANCE
CHOPPING ENABLED
Conversion Time Rate
372
12190
Hz
Configure via Conv. Time Register
No Missing Codes1, 2
24
Bits
FW ≥ 6 (Conversion Time ≥ 165 µs)
Output Noise
See
Table 4
Resolution
See Table 5
and Table 6
Integral Nonlinearity (INL) 1, 2
±0.0010
±0.0030
% of FSR
fMCLKIN = 2.5 MHz
Integral Nonlinearity (INL)2
±0.0025
±0.0045
% of FSR
fMCLKIN = 6.144 MHz
Offset Error (Unipolar, Bipolar)3
±10
mV
Before Calibration
Offset Drift vs. Temperature1
±2.5
µV/°C
Gain Error3
±0.35
%
Before Calibration
Gain Drift vs. Temperature1
±3.2
ppm of FS/°C
Positive Full-Scale Error3
±0.5
% of FSR
Before Calibration
Positive Full-Scale Drift vs. Temp.1
±3
ppm of FS/°C
Bipolar Negative Full-Scale Error4
±0.0050
% of FSR
After Calibration
Power Supply Sensitivity
±4
±10
LSB16
At DC, AIN = 7 V, AVDD = 5 V ± 5%
Channel-to-Channel Isolation
100
dB
At DC, Maximum ±16.5 V AIN Voltage
ADC PERFORMANCE
CHOPPING DISABLED
Conversion Time Rate
737
15437
Hz
Configure via Conv. Time Register
No Missing Codes1, 2
24
Bits
FW ≥ 8 (Conversion Time ≥ 117 µs)
Output Noise
See
Table 7
Resolution
See Table 8
and Table 9
Integral Nonlinearity (INL)2
±0.0025
% of FSR
Offset Error (Unipolar, Bipolar)5
±15
mV
Before Calibration
Offset Drift vs. Temperature
±25
µV/°C
Gain Error3
±0.1
%
Before Calibration
Gain Drift vs. Temperature
±5.3
ppm of FS/°C
Positive Full-Scale Error3
±0.2
% of FSR
Before Calibration
Positive Full-Scale Drift vs. Temp.
±4
ppm of FS/°C
Bipolar Negative Full-Scale Error4
±0.0050
% of FSR
After Calibration
Power Supply Sensitivity
±4
LSB16
At DC, AIN = 7 V, AVDD = 5 V ± 5%
Channel-to-Channel Isolation
100
dB
At DC, Maximum ±16.5 V AIN Voltage
ANALOG INPUTS
Analog Input Voltage1, 6, 7
±10 V Range
±10
V
0 V to +10 V Range
0 to +10
V
±5 V Range
±5
V
0 V to +5 V Range
0 to +5
V
BIASLO Voltage
0
V
BIAS0 to 3, BIASHI Voltage
2.5
V
AIN Impedance1, 8
100
124
k
AIN Pin, BIASLO Pin Impedance1, 8
87.5
108.5
k


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