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AD7705BNZ1 Fiches technique(PDF) 5 Page - Analog Devices

No de pièce AD7705BNZ1
Description  3 V/5 V, 1 mW, 2-/3-Channel
Download  44 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

AD7705BNZ1 Fiches technique(HTML) 5 Page - Analog Devices

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AD7705/AD7706
Rev. C | Page 5 of 44
SPECIFICATIONS
VDD = 3 V or 5 V, REF IN(+) = 1.225 V with VDD = 3 V, and 2.5 V with VDD = 5 V; REF IN(−) = GND; MCLK IN = 2.4576 MHz, unless
otherwise noted. All specifications TMIN to TMAX, unless otherwise noted.
Table 1.
Parameter
B Version1
Unit
Conditions/Comments
STATIC PERFORMANCE
No Missing Codes
16
Bits min
Guaranteed by design, filter notch < 60 Hz
Output Noise
See Table 5 and
Table 7
Depends on filter cutoffs and selected gain
Integral Nonlinearity2
±0.003
% of FSR max
Filter notch < 60 Hz, typically ±0.0003%
Unipolar Offset Error3
Unipolar Offset Drift4
0.5
μV/°C typ
Bipolar Zero Error3
Bipolar Zero Drift4
0.5
μV/°C typ
For gains 1, 2, and 4
0.1
μV/°C typ
For gains 8, 16, 32, 64, and 128
Positive Full-Scale Error3, 5
Full-Scale Drift4, 6
0.5
μV/°C typ
Gain Error3, 7
Gain Drift4, 8
0.5
ppm of FSR/°C
typ
Bipolar Negative Full-Scale Error2
±0.003
% of FSR typ
Typically ±0.001%
Bipolar Negative Full-Scale Drift4
1
μV/°C typ
For gains of 1 to 4
0.6
μV/°C typ
For gains of 8 to 128
ANALOG INPUTS/REFERENCE INPUTS
Specifications for AIN and REF IN, unless otherwise
noted
Common-Mode Rejection (CMR)2
VDD = 5 V
Gain = 1
96
dB typ
Gain = 2
105
dB typ
Gain = 4
110
dB typ
Gain = 8 to 128
130
dB typ
VDD = 3 V
Gain = 1
105
dB typ
Gain = 2
110
dB typ
Gain = 4
120
dB typ
Gain = 8 to 128
130
dB typ
Normal-Mode 50 Hz Rejection2
98
dB typ
For filter notches of 25 Hz, 50 Hz, ±0.02 × fNOTCH
Normal-Mode 60 Hz Rejection2
98
dB typ
For filter notches of 20 Hz, 60 Hz, ±0.02 × fNOTCH
Common-Mode 50 Hz Rejection2
150
dB typ
For filter notches of 25 Hz, 50 Hz, ±0.02 × fNOTCH
Common-Mode 60 Hz Rejection2
150
dB typ
For filter notches of 20 Hz, 60 Hz, ±0.02 × fNOTCH
Absolute/Common-Mode REF IN
Voltage2
GND to VDD
V min to V max
Absolute/Common-Mode AIN
Voltage2, 9, 10
GND − 100 mV
V min
BUF bit of setup register = 0
VDD + 30 mV
V max
Absolute/Common-Mode AIN
Voltage2, 9
GND + 50 mV
V min
BUF bit of setup register = 1
VDD − 1.5 V
V max
AIN DC Input Current2
1
nA max
AIN Sampling Capacitance2
10
pF max
AIN Differential Voltage Range11
0 to +VREF/gain12
nom
Unipolar input range (B/U bit of setup register = 1)
±VREF/gain
nom
Bipolar input range (B/U bit of setup register = 0)


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