AD7980ARMZ(RevC) Просмотр технического описания (PDF) - Analog Devices
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AD7980ARMZ Datasheet PDF : 28 Pages
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Data Sheet
AD7980
SPECIFICATIONS
VDD = 2.5 V, VIO = 2.3 V to 5.5 V, VREF = 5 V, TA = –40°C to +125°C, unless otherwise noted.
Table 2.
Parameter
RESOLUTION
ANALOG INPUT
Voltage Range
Absolute Input Voltage
Analog Input CMRR
Leakage Current at 25°C
Input Impedance
ACCURACY
No Missing Codes
Differential Linearity Error
Integral Linearity Error
Transition Noise
Gain Error, TMIN to TMAX2
Gain Error Temperature Drift
Zero Error, TMIN to TMAX2
Zero Temperature Drift
Power Supply Sensitivity
THROUGHPUT
Conversion Rate
Transient Response
AC ACCURACY
Dynamic Range
Oversampled Dynamic Range
Signal-to-Noise Ratio, SNR
Spurious-Free Dynamic Range, SFDR
Total Harmonic Distortion, THD
Signal-to-(Noise + Distortion), SINAD
Conditions
IN+ − IN−
IN+
IN−
fIN = 100 kHz
Acquisition phase
REF = 5 V
REF = 2.5 V
REF = 5 V
REF = 2.5 V
REF = 5 V
REF = 2.5 V
VDD = 2.5 V ± 5%
VIO ≥ 2.3 V up to 85°C, VIO ≥
3.3 V above 85°C up to 125°C
Full-scale step
VREF = 5 V
VREF = 2.5 V
fO = 10 kSPS
fIN = 10 kHz, VREF = 5 V
fIN = 10 kHz, VREF = 2.5 V
fIN = 10 kHz
fIN = 10 kHz
fIN = 10 kHz, VREF = 5 V
fIN = 10 kHz, VREF = 2.5 V
A Grade
B Grade
Min Typ Max
Min Typ Max
Unit
16
16
Bits
0
VREF
0
VREF
V
−0.1
VREF + 0.1 −0.1
VREF + 0.1 V
−0.1
+0.1
−0.1
+0.1
V
60
60
dB
1
1
nA
See the
Analog Input section
See the
Analog Input section
16
−1.0 ±0.5 +2.0
±0.7
−2.5 ±1.5 +2.5
±1.65
0.75
1.2
±2
±0.35
−1.0 ±0.08 +1.0
0.54
±0.1
16
−0.9
−1.25
−0.5
±0.4
±0.55
±0.6
±0.65
0.6
1.0
±2
±0.35
±0.08
0.54
±0.1
+0.9
+1.25
+0.5
Bits
LSB1
LSB1
LSB1
LSB1
LSB1
LSB1
LSB1
ppm/°C
mV
ppm/°C
LSB1
0
1
290
91
86
110
90
85.5
−103.5
−101
90.5
86.0
0
1
290
92
87
111
90
91
86.5
−110
−114
91.5
87.0
MSPS
ns
dB3
dB3
dB3
dB3
dB3
dB3
dB3
dB3
dB3
1 LSB means least significant bit. With the 5 V input range, 1 LSB is 76.3 µV.
2 See the Terminology section. These specifications include full temperature range variation, but not the error contribution from the external reference.
3 All specifications in dB are referred to a full-scale input FSR. Tested with an input signal at 0.5 dB below full scale, unless otherwise specified.
Rev. C | Page 3 of 28
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