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AD79801 датащи(PDF) 3 Page - Analog Devices

номер детали AD79801
подробное описание детали  18-Bit, 2 MSPS PulSAR 15 mW ADC in LFCSP (QFN)
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

AD79801 датащи(HTML) 3 Page - Analog Devices

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AD7986
Rev. B | Page 3 of 28
SPECIFICATIONS
AVDD = DVDD = 2.5 V, BVDD = 5 V, VIO = 1.8 V to 2.7 V, VREF = 4.096 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−)
−V
REF
+V
REF
V
Absolute Input Voltage
IN+, IN−
−0.1
V
REF + 0.1
V
Common-Mode Input Range
IN+, IN−
V
REF × 0.475
V
REF × 0.5
V
REF × 0.525
V
Analog Input CMRR
f
IN = 500 kHz
100
dB1
Leakage Current at 25°C
Acquisition phase
250
nA
Input Impedance
See the Analog Inputs section
ACCURACY
No Missing Codes
18
Bits
Differential Linearity Error
−0.95
±0.60
+1.50
LSB2
Integral Linearity Error
−2.50
±1.00
+2.50
LSB2
Transition Noise
2.0
LSB2
Gain Error, T
MIN to TMAX
3
−20
±2.4
+20
LSB2
Gain Error Temperature Drift
±0.5
ppm/°C
Zero Error, T
MIN to TMAX
3
−0.8
+0.8
mV
Zero Temperature Drift
±0.3
ppm/°C
Power Supply Sensitivity
AVDD = 2.5 V ± 5%
±4
LSB2
THROUGHPUT
Conversion Rate
0
2.00
MSPS
Transient Response
Full-scale step
100
ns
AC ACCURACY
Dynamic Range
V
REF = 4.096 V, internal reference
95.5
96.5
dB1
V
REF = 5.0 V, external reference
97
98
Signal-to-Noise Ratio, SNR
f
IN = 20 kHz, VREF = 4.096 V, internal
reference
94.5
95.5
dB1
f
IN = 20 kHz, VREF = 5.0 V, external
reference
96.5
97.0
dB1
Spurious-Free Dynamic Range, SFDR
f
IN = 20 kHz
−115
dB1
Total Harmonic Distortion4, THD
f
IN = 20 kHz, VREF = 4.096 V, internal
reference
−113
dB1
f
IN = 20 kHz, VREF = 5.0 V, external
reference
−114
dB1
Signal-to-(Noise + Distortion), SINAD
f
IN = 20 kHz, VREF = 4.096 V
94.5
95.5
dB1
SAMPLING DYNAMICS
−3 dB Input Bandwidth
19
MHz
Aperture Delay
0.7
ns
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 ±4.096 V input range, one LSB is 31.25 µV.
3 See the Terminology section. These specifications include full temperature range variation but not the error contribution from the external reference.
4 Tested fully in production at f
IN = 1 kHz.


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