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AD7661 Datasheet(PDF) 3 Page - Analog Devices

Part # AD7661
Description  16-Bit, 500 kSPS PulSAR짰 Dual, 2-Channel, Simultaneous Sampling ADC
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

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AD7654
Rev. B | Page 3 of 28
SPECIFICATIONS
AVDD = DVDD = 5 V, OVDD = 2.7 V to 5.25 V; all specifications TMIN to TMAX, unless otherwise noted.
Table 2.
Parameter
Conditions
Min
Typ
Max
Unit
RESOLUTION
16
Bits
ANALOG INPUT
Voltage Range
VINx – VINxN
0
2 VREF
V
Common-Mode Input Voltage
VINxN
−0.1
+0.5
V
Analog Input CMRR
fIN = 100 kHz
55
dB
Input Current
500 kSPS throughput
45
μA
Input Impedance1
THROUGHPUT SPEED
Complete Cycle
In normal mode
2
μs
Throughput Rate
In normal mode
0
500
kSPS
Complete Cycle
In impulse mode
2.25
μs
Throughput Rate
In impulse mode
0
444
kSPS
DC ACCURACY
Integral Linearity Error2
−3.5
+3.5
LSB3
No Missing Codes
16
Bits
Transition Noise
0.7
LSB
Full-Scale Error4
TMIN to TMAX
±0.25
±0.5
% of FSR
Full-Scale Error Drift4
±2
ppm/°C
Unipolar Zero Error4
TMIN to TMAX
±0.25
% of FSR
Unipolar Zero Error Drift4
±0.8
ppm/°C
Power Supply Sensitivity
AVDD = 5 V ±5%
0.8
LSB
AC ACCURACY
Signal-to-Noise
fIN = 20 kHz
88
90
dB5
fIN = 100 kHz
89
dB
Spurious-Free Dynamic Range
fIN = 100 kHz
105
dB
Total Harmonic Distortion
fIN = 100 kHz
−100
dB
Signal-to-Noise and Distortion
fIN = 20 kHz
87.5
90
dB
fIN = 100 kHz
88.5
dB
fIN = 100 kHz, −60 dB Input
30
dB
Channel-to-Channel Isolation
fIN = 100 kHz
−92
dB
−3 dB Input Bandwidth
10
MHz
SAMPLING DYNAMICS
Aperture Delay
2
ns
Aperture Delay Matching
30
ps
Aperture Jitter
5
ps rms
Transient Response
Full-scale step
250
ns
REFERENCE
External Reference Voltage Range
2.3
2.5
AVDD/2
V
External Reference Current Drain
500 kSPS throughput
180
μA
DIGITAL INPUTS
Logic Levels
VIL
−0.3
+0.8
V
VIH
+2.0
DVDD + 0.3
V
IIL
−1
+1
μA
IIH
−1
+1
μA


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