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AD7984 датащи(PDF) 3 Page - Analog Devices

номер детали AD7984
подробное описание детали  18-Bit, 1.33 MSPS PulSAR 10.5 mW ADC in MSOP/LFCSP
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
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AD7984 датащи(HTML) 3 Page - Analog Devices

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Data Sheet
AD7984
SPECIFICATIONS
VDD = 2.5 V, VIO = 2.3 V to 5.5 V, REF = 5 V, TA = −40°C to +85°C, unless otherwise noted.
Table 2.
Parameter
Conditions
Min
Typ
Max
Unit
RESOLUTION
18
Bits
ANALOG INPUT
Voltage Range
IN+ − IN−
−VREF
+VREF
V
Absolute Input Voltage
IN+, IN−
−0.1
VREF + 0.1
V
Common-Mode Input Range
IN+, IN−
VREF × 0.475
VREF × 0.5
VREF × 0.525
V
Analog Input CMRR
fIN = 450 kHz
67
dB1
Leakage Current at 25°C
Acquisition phase
200
nA
Input Impedance
See the Analog Inputs section
ACCURACY
No Missing Codes
18
Bits
Differential Linearity Error
−1
+1.5
LSB2
Integral Linearity Error
−2.25
+2.25
LSB2
Transition Noise
0.95
LSB2
Gain Error, TMIN to TMAX3
−0.075
±0.022
+0.075
% of FS
Gain Error Temperature Drift
−0.6
ppm/°C
Zero Error, TMIN to TMAX3
−700
±100
+700
µV
Zero Temperature Drift
0.3
ppm/°C
Power Supply Sensitivity
VDD = 2.5 V ± 5%
90
dB1
THROUGHPUT
Conversion Rate
0
1.33
MSPS
Transient Response
Full-scale step
290
ns
AC ACCURACY
Dynamic Range
VREF = 5 V
99.7
dB1
Signal-to-Noise, SNR
fIN = 1 kHz, VREF = 5 V, TA = 25°C
96.5
98.5
dB1
Spurious-Free Dynamic Range, SFDR
fIN = 10 kHz
112.5
dB1
Total Harmonic Distortion4, THD
fIN = 10 kHz
−110.5
dB1
Signal-to-(Noise + Distortion), SINAD
fIN = 10 kHz, VREF = 5 V, TA = 25°C
98
dB1
1
All specifications expressed in decibels are referred to a full-scale input FSR and tested with an input signal at 0.5 dB below full scale, unless otherwise specified.
2
LSB means least significant bit. With the ±5 V input range, one LSB is 38.15 µV.
3
See Terminology section. These specifications include full temperature range variation but not the error contribution from the external reference.
4
Tested fully in production at fIN = 1 kHz.
Rev. B | Page 3 of 24


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