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AD7621ACPZ1 Datasheet(数据表) 3 Page - Analog Devices

部件型号  AD7621ACPZ1
说明  16-Bit, 2 LSB INL, 3 MSPS 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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AD7621
Rev. 0 | Page 3 of 32
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
3 MSPS throughput
25
μA
Input Impedance2
THROUGHPUT SPEED
Complete Cycle
Wideband warp, warp modes
333
ns
Throughput Rate
Wideband warp, warp modes
0.001
3
MSPS
Time Between Conversions
Wideband warp, warp modes
1
ms
Complete Cycle
Normal mode
500
ns
Throughput Rate
Normal mode
0
2
MSPS
Complete Cycle
Impulse mode
800
ns
Throughput Rate
Impulse mode
0
1.25
MSPS
DC ACCURACY
All modes
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
0.69
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%
±3
LSB
AC ACCURACY
Dynamic Range
fIN = 20 kHz, VREF = 2.5 V
90.5
dB6
Signal-to-Noise
fIN = 20 kHz, VREF = 2.5 V
88
90
dB
fIN = 20 kHz, VREF = 2.048 V
86
88
dB
fIN = 100 kHz, VREF = 2.5 V
89.2
dB
Spurious-Free Dynamic Range
fIN = 20 kHz
103
dB
fIN = 100 kHz
101
dB
Total Harmonic Distortion
fIN = 20 kHz
–102
dB
fIN = 100 kHz
−100
dB
Signal-to-(Noise + Distortion)
fIN = 20 kHz, VREF = 2.5 V
87.5
89.8
dB
fIN = 20 kHz, VREF = 2.048 V
87.5
dB
fIN = 100 kHz, VREF = 2.5 V
89
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




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