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AD7631BSTZRL Datasheet(数据表) 3 Page - Analog Devices

部件型号  AD7631BSTZRL
说明  18-Bit, 250 kSPS, Differential Programmable Input PulSAR® ADC
下载  32 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
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AD7631
Rev. A | Page 3 of 32
SPECIFICATIONS
AVDD = DVDD = 5 V; OVDD = 2.7 V to 5.5 V; VCC = 15 V; VEE = −15 V; VREF = 5 V; all specifications TMIN to TMAX, unless otherwise noted.
Table 2.
Parameter
Conditions/Comments
Min
Typ
Max
Unit
RESOLUTION
18
Bits
ANALOG INPUTS
Differential Voltage Range, VIN
(VIN+) − (VIN−)
0 V to 5 V
VIN = 10 V p-p
−VREF
+VREF
V
0 V to 10 V
VIN = 20 V p-p
−2 VREF
+2 VREF
V
±5 V
VIN = 20 V p-p
−2 VREF
+2 VREF
V
±10 V
VIN = 40 V p-p
−4 VREF
+4 VREF
V
Operating Voltage Range
VIN+, VIN− to AGND
0 V to 5 V
−0.1
+5.1
V
0 V to 10 V
−0.1
+10.1
V
±5 V
−5.1
+5.1
V
±10 V
−10.1
+10.1
V
Common-Mode Voltage Range
VIN+, VIN−
5 V
VREF/2 − 0.1
VREF/2
VREF/2 + 0.1
V
10 V
VREF − 0.2
VREF
VREF + 0.2
V
Bipolar Ranges
−0.1
0
+0.1
V
Analog Input CMRR
fIN = 100 kHz
75
dB
Input Current
250 kSPS throughput
801
μA
Input Impedance
See
Analog Inputs section
THROUGHPUT SPEED
Complete Cycle
4.0
μs
Throughput Rate
250
kSPS
DC ACCURACY
Integral Linearity Error2
250 kSPS throughput
−2.5
±1.5
+2.5
LSB3
No Missing Codes
18
Bits
Differential Linearity Error2
−1
+2.5
LSB
Transition Noise
0.75
LSB
Unipolar Zero Error
−0.06
+0.06
%FS
Bipolar Zero Error
−0.03
+0.03
%FS
Zero-Error Temperature Drift
±0.5
ppm/°C
Bipolar Full-Scale Error
−0.09
+0.09
%FS
Unipolar Full-Scale Error
−0.07
+0.07
%FS
Full-Scale Error Temperature Drift
±0.5
ppm/°C
Power Supply Sensitivity
AVDD = 5 V ± 5%
3
LSB
AC ACCURACY
Dynamic Range
VIN = 0 to 5 V, fIN = 2 kHz, −60 dB
100
101.8
dB4
VIN = all other input ranges, fIN = 2 kHz, −60 dB
100
102.5
dB
Signal-to-Noise Ratio
VIN = 0 to 5 V, fIN = 2 kHz
99.5
100.5
dB
VIN = all other input ranges, fIN = 2 kHz
100
101
dB
Signal-to-(Noise + Distortion), SINAD
fIN = 2 kHz
100
dB
Total Harmonic Distortion
fIN = 2 kHz
112
dB
Spurious-Free Dynamic Range
fIN = 2 kHz
113
dB
−3 dB Input Bandwidth
VIN = 0 V to 5 V
45
MHz
SAMPLING DYNAMICS
Aperture Delay
2
ns
Aperture Jitter
5
ps rms
Transient Response
Full-scale step
500
ns




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