參數(shù)資料
型號: AD7679CB1
廠商: Analog Devices, Inc.
英文描述: 18-Bit, 2.5 LSB INL, 570 kSPS SAR ADC
中文描述: 18位,2.5 LSB INL和570 kSPS的SAR型ADC
文件頁數(shù): 3/28頁
文件大?。?/td> 506K
代理商: AD7679CB1
AD7679
SPECIFICATIONS
Table 2. –40°C to +85°C, V
REF
= 4.096 V, AVDD = DVDD= 5 V, OVDD = 2.7 V to 5.25 V, unless otherwise noted.
Parameter
Conditions
RESOLUTION
ANALOG INPUT
Voltage Range
V
IN+
– V
IN–
Operating Input Voltage
V
IN+
, V
IN–
to AGND
Analog Input CMRR
f
IN
= 100 kHz
Input Current
570 kSPS Throughput
Input Impedance
1
THROUGHPUT SPEED
Complete Cycle
Throughput Rate
DC ACCURACY
Integral Linearity Error
Differential Linearity Error
No Missing Codes
Transition Noise
V
REF
= 5 V
Zero Error, T
MIN
to T
MAX3
Zero Error Temperature Drift
Gain Error, T
MIN
to T
MAX3
Gain Error Temperature Drift
Power Supply Sensitivity
AVDD = 5 V ± 5%
AC ACCURACY
f
IN
= 2 kHz, V
REF
= 5 V
V
REF
= 4.096 V
f
IN
= 10 kHz, V
REF
= 4.096 V
f
IN
= 100 kHz, V
REF
= 4.096 V
Dynamic Range
V
IN+
= V
IN–
= V
REF
/2 = 2.5 V
f
IN
= 2 kHz
f
IN
= 10 kHz
f
IN
= 100 kHz
f
IN
= 2 kHz
f
IN
= 10 kHz
f
IN
= 100 kHz
f
IN
= 2 kHz, V
REF
= 4.096 V
Signal-to-(Noise + Distortion)
f
IN
= 2 kHz, –60 dB Input
–3 dB Input Bandwidth
SAMPLING DYNAMICS
Aperture Delay
Aperture Jitter
Transient Response
Full-Scale Step
Overvoltage Recovery
REFERENCE
External Reference Voltage Range
REF
REF Voltage with Reference Buffer
REFBUFIN = 2.5 V
Reference Buffer Input Voltage Range
REFBUFIN
REFBUFIN Input Current
REF Current Drain
570 kSPS Throughput
Rev. 0 | Page 3 of 28
Min
18
–V
REF
–0.1
0
–2.5
–1
18
–40
–0.048
97.5
3
4.05
1.8
–1
Typ
68
25
0.7
±0.5
See Note 3
±1.6
±4
101
99
98
97
103
120
118
105
–115
–113
–98
98
40
26
2
5
4.096
4.096
2.5
235
Max
+V
REF
AVDD+0.1
1.75
570
+2.5
+1.75
+40
+0.048
250
250
AVDD + 0.1
4.15
2.6
+1
Unit
Bits
V
V
dB
μA
μs
kSPS
LSB
2
LSB
Bits
LSB
LSB
ppm/°C
% of FSR
ppm/°C
LSB
dB
4
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
MHz
ns
ps rms
ns
ns
V
V
V
μA
μA
Signal-to-Noise
Spurious-Free Dynamic Range
Total Harmonic Distortion
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