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EVAL-AD7902SDZ 数据表(PDF) 4 Page - Analog Devices

部件名 EVAL-AD7902SDZ
功能描述  Dual Pseudo Differential 16-Bit, 1 MSPS PulSAR ADC 12.0 mW in QSOP
PDF  29 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

EVAL-AD7902SDZ 数据表(HTML) 4 Page - Analog Devices

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Data Sheet
AD7902
Rev. B | Page 3 of 28
SPECIFICATIONS
VDD = 2.5 V, VIO = 2.3 V to 5.5 V, VREF = 5 V, TA = −40°C to +125°C, unless otherwise noted.1
Table 2.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
RESOLUTION
16
Bits
ANALOG INPUT2
Voltage Range
INx+ − INx−
0
V
REF
V
Absolute Input Voltage
INx+
−0.1
V
REF + 0.1
V
INx−
−0.1
0
+0.1
V
Analog Input CMRR
f
IN = 450 kHz
67
dB
Leakage Current at 25°C
Acquisition phase
200
nA
ACCURACY
No Missing Codes
16
Bits
Differential Nonlinearity Error3
V
REF = 5 V
−1.0
±0.5
+1.0
LSB
V
REF = 2.5 V
±0.8
LSB
Integral Nonlinearity Error3
V
REF = 5 V
−2.5
±1.0
+2.5
LSB
V
REF = 2.5 V
±0.9
LSB
Transition Noise3
V
REF = 5 V
0.75
LSB
V
REF = 2.5 V
1.2
LSB
Gain Error4
T
MIN to TMAX
−0.08
±0.012
+0.08
% FS
Gain Error Temperature Drift
0.3
ppm/°C
Gain Error Match4
T
MIN to TMAX
0.016
0.08
% FS
Zero Error4
T
MIN to TMAX
−1.25
±0.25
+1.25
mV
Zero Temperature Drift
0.19
ppm/°C
Zero Error Match4
T
MIN to TMAX
0.2
1.0
mV
Power Supply Sensitivity3
V
DD = 2.5 V ± 5%
±0.1
LSB
THROUGHPUT
Conversion Rate
V
IO ≥ 2.3 V up to 85°C, VIO ≥ 3.3 V
above 85°C, up to 125°C
0
1
MSPS
Transient Response
Full-scale step
290
ns
AC ACCURACY5
Dynamic Range
V
REF = 5 V
92
dB
V
REF = 2.5 V
87
dB
Oversampled Dynamic Range
f
OUT = 10 kSPS
111
dB
Signal-to-Noise Ratio (SNR)
f
IN = 1 kHz, VREF = 5 V
89.5
91.5
dB
f
IN = 1 kHz, VREF = 2.5 V
84.5
86.5
dB
Spurious-Free Dynamic Range (SFDR)
f
IN = 1 kHz
−105
dB
Total Harmonic Distortion (THD)
f
IN = 1 kHz
−105
dB
Signal-to-Noise-and-Distortion Ratio (SINAD)
f
IN = 1 kHz, VREF = 5 V
89
91
dB
f
IN = 1 kHz, VREF = 2.5 V
84
86
dB
Channel-to-Channel Isolation
f
IN = 10 kHz
−112
dB
1 The voltages for the VDDx, VIOx, and REFx pins are indicated by V
DD, VIO, and VREF, respectively.
2 For information regarding input impedance, see the Analog Inputs section.
3 For the 5 V input range, 1 LSB = 76.3 µV. For the 2.5 V input range, 1 LSB = 38.2 µV.
4 See the Terminology section. These specifications include full temperature range variation, but they do not include the error contribution from the external reference.
5 All specifications in decibels (dB) are referred to a full-scale input FSR. Although these parameters are referred to full scale, they are tested with an input signal at 0.5 dB below
full scale, unless otherwise specified.



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