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AD7980 Datasheet(PDF) 3 Page - Analog Devices

No. de Pieza. AD7980
Descripción  16-bit, 1 MSPS PulSAR ADC in MSOP/QFN
Descarga  22 Pages
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Fabricante  AD [Analog Devices]
Página de inicio  http://www.analog.com
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AD7980 Datasheet(HTML) 3 Page - Analog Devices

 
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Preliminary Technical Data
AD7980
Rev Pr C | Page 3 of 22
SPECIFICATIONS
VDD = 2.5 V, VIO = 2.3 V to 5.5V, VREF = 5V, TA = –40°C to +85°C, unless otherwise noted.
Table 2.
Parameter
Conditions
Min
Typ
Max
Unit
RESOLUTION
16
Bits
ANALOG INPUT
Voltage Range
IN+ − IN−
0
+VREF
V
Absolute Input Voltage
IN+
−0.1
VREF + 0.1
V
IN−
−0.1
+0.1
V
Analog Input CMRR
fIN = 1 MHz
60
dB
Leakage Current at 25°C
Acquisition phase
1
nA
Input Impedance
See the Analog Input section
ACCURACY
No Missing Codes
16
Bits
Differential Linearity Error
−1
±0.5
+1
LSB1
Integral Linearity Error
−2
±1
+2
LSB
Transition Noise
REF = 5 V
0.58
LSB
REF = 2.5 V
1
LSB
Gain Error2, TMIN to TMAX
±2
LSB
Gain Error Temperature Drift
±1
ppm/°C
Zero Error2, TMIN to TMAX
±0.5
mV
Zero Temperature Drift
±1
ppm/°C
Power Supply Sensitivity
VDD = 2.5V
± 5%
±0.1
LSB
THROUGHPUT
Conversion Rate
0
1
MSPS
Transient Response
Full-scale step
250
ns
AC ACCURACY
Signal-to-Noise
fIN = 20 kHz, VREF = 5 V
91.5
dB
fIN = 20 kHz, VREF = 2.5 V
87.5
dB
Spurious-Free Dynamic Range
fIN = 20 kHz
−103.5
dB
Total Harmonic Distortion
fIN = 20 kHz
−101
dB
Signal-to-(Noise + Distortion)
fIN = 20 kHz, VREF = 5 V
91.5
dB
fIN = 20 kHz, VREF = 2.5 V
87.5
dB
Intermodulation Distortion3
-105
dB
1 LSB means least significant bit. With the 5 V input range, one LSB is 76.3 μV.
2 See Terminology section. These specifications do include full temperature range variation but do not include the error contribution from the external reference.
3 fIN1 = 21.4 kHz, fIN2 = 16.9 kHz, each tone at −7 dB below full-scale.


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