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AD7623AST Datasheet(PDF) 4 Page - Analog Devices

Part # AD7623AST
Description  16-Bit, 1.33 MSPS PulSAR ADC
PDF  29 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7623AST Datasheet(HTML) 4 Page - Analog Devices

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AD7623
Rev. 0 | Page 3 of 28
SPECIFICATIONS
AVDD = DVDD = 2.5 V; OVDD = 2.3 V to 3.6 V; VREF = 2.5 V; all specifications TMIN to TMAX, unless otherwise noted.
Table 2.
Parameter
Conditions
Min
Typ
Max
Unit
RESOLUTION
16
Bits
ANALOG INPUT
Voltage Range
VIN+
− VIN−
−VREF
+VREF
V
Operating Input Voltage
VIN+, VIN− to AGND
−0.1
AVDD1
V
Analog Input CMRR
fIN = 100 kHz
55
dB
Input Current
1.33 MSPS throughput
10
μA
Input Impedance2
THROUGHPUT SPEED
Complete Cycle
750
ns
Throughput Rate
0
1.33
MSPS
DC ACCURACY
Integral Linearity Error3
VREF = 2.048 V, PDREF = high
−2
±1
+2
LSB4
No Missing Codes
VREF = 2.048 V, PDREF = high
16
Bits
Differential Linearity Error
VREF = 2.048 V, PDREF = high
−1
+2
LSB
Transition Noise
VREF = 2.5 V
0.70
LSB
Transition Noise
VREF = 2.048 V
0.82
LSB
Zero Error, TMIN to TMAX5
−30
+30
LSB
Zero Error Temperature Drift
±1
ppm/°C
Gain Error, TMIN to TMAX5
−0.38
+0.38
% of FSR
Gain Error Temperature Drift
±2
ppm/°C
Power Supply Sensitivity
AVDD = 2.5 V ± 5%
±2
LSB
AC ACCURACY
Dynamic Range
fIN = 20 kHz
90
dB6
Signal-to-Noise
fIN = 20 kHz
88
89.5
dB
fIN = 20 kHz, VREF = 2.048 V
86
88
dB
fIN = 100 kHz
89
dB
Spurious-Free Dynamic Range
fIN = 20 kHz
97
dB
fIN = 100 kHz
96
dB
Total Harmonic Distortion
fIN = 20 kHz
–97
dB
fIN = 100 kHz
−95
dB
Signal-to-(Noise + Distortion)
fIN = 20 kHz
87.5
88.5
dB
fIN = 20 kHz, VREF = 2.048 V
87.5
dB
fIN = 100 kHz
88
dB
–3 dB Input Bandwidth
50
MHz
SAMPLING DYNAMICS
Aperture Delay
1
ns
Aperture Jitter
5
ps rms
Transient Response
Full-scale step
50
ns
INTERNAL REFERENCE
PDREF = PDBUF = low
Output Voltage
REF @ 25°C
2.038
2.048
2.058
V
Temperature Drift
–40°C to +85°C
±7
ppm/°C
Line Regulation
AVDD = 2.5 V ± 5%
±15
ppm/V
Turn-On Settling Time
CREF = 10 μF
5
ms
REFBUFIN Output Voltage
REFBUFIN @ 25°C
1.2
V
REFBUFIN Output Resistance
6.33
kΩ



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