AD7679(Rev0) 데이터 시트보기 (PDF) - Analog Devices
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AD7679 Datasheet PDF : 28 Pages
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AD7679
SPECIFICATIONS
Table 2. –40°C to +85°C, VREF = 4.096 V, AVDD = DVDD= 5 V, OVDD = 2.7 V to 5.25 V, unless otherwise noted.
Parameter
Conditions
Min
Typ
Max
RESOLUTION
18
ANALOG INPUT
Voltage Range
Operating Input Voltage
Analog Input CMRR
Input Current
Input Impedance1
VIN+ – VIN–
VIN+, VIN– to AGND
fIN = 100 kHz
570 kSPS Throughput
–VREF
–0.1
68
25
+VREF
AVDD+0.1
THROUGHPUT SPEED
Complete Cycle
Throughput Rate
1.75
0
570
DC ACCURACY
Integral Linearity Error
–2.5
+2.5
Differential Linearity Error
–1
+1.75
No Missing Codes
18
Transition Noise
Zero Error, TMIN to TMAX3
Zero Error Temperature Drift
Gain Error, TMIN to TMAX3
Gain Error Temperature Drift
Power Supply Sensitivity
VREF = 5 V
AVDD = 5 V ± 5%
–40
–0.048
0.7
±0.5
See Note 3
±1.6
±4
+40
+0.048
AC ACCURACY
Signal-to-Noise
Dynamic Range
Spurious-Free Dynamic Range
Total Harmonic Distortion
Signal-to-(Noise + Distortion)
–3 dB Input Bandwidth
fIN = 2 kHz, VREF = 5 V
VREF = 4.096 V
97.5
fIN = 10 kHz, VREF = 4.096 V
fIN = 100 kHz, VREF = 4.096 V
VIN+ = VIN– = VREF/2 = 2.5 V
fIN = 2 kHz
fIN = 10 kHz
fIN = 100 kHz
fIN = 2 kHz
fIN = 10 kHz
fIN = 100 kHz
fIN = 2 kHz, VREF = 4.096 V
fIN = 2 kHz, –60 dB Input
101
99
98
97
103
120
118
105
–115
–113
–98
98
40
26
SAMPLING DYNAMICS
Aperture Delay
Aperture Jitter
Transient Response
Overvoltage Recovery
Full-Scale Step
2
5
250
250
REFERENCE
External Reference Voltage Range
REF Voltage with Reference Buffer
Reference Buffer Input Voltage Range
REFBUFIN Input Current
REF
REFBUFIN = 2.5 V
REFBUFIN
3
4.096
AVDD + 0.1
4.05
4.096
4.15
1.8
2.5
2.6
–1
+1
REF Current Drain
570 kSPS Throughput
235
Unit
Bits
V
V
dB
µA
µs
kSPS
LSB2
LSB
Bits
LSB
LSB
ppm/°C
% of FSR
ppm/°C
LSB
dB4
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
MHz
ns
ps rms
ns
ns
V
V
V
µA
µA
Rev. 0 | Page 3 of 28
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