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AD7689 Datasheet(PDF) 3 Page - Analog Devices

No. de pieza AD7689
Descripción Electrónicos  16-Bit, 4-Channel/8-Channel, 250 kSPS PulSAR ADC
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Fabricante Electrónico  AD [Analog Devices]
Página de inicio  http://www.analog.com
Logo AD - Analog Devices

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AD7682/AD7689
Rev. 0 | Page 3 of 28
SPECIFICATIONS
VDD = 2.5 V to 5.5 V, VIO = 2.3 V to VDD, VREF = VDD, all specifications TMIN to TMAX, unless otherwise noted.
Table 2.
AD7682B/AD7689B
Parameter
Conditions/Comments
Min
Typ
Max
Unit
RESOLUTION
16
Bits
ANALOG INPUT
Voltage Range
Unipolar mode
0
+VREF
V
Bipolar mode
−VREF/2
+VREF/2
Absolute Input Voltage
Positive input, unipolar and bipolar modes
−0.1
VREF + 0.1
V
Negative or COM input, unipolar mode
−0.1
+0.1
Negative or COM input, bipolar mode
VREF/2 − 0.1
VREF/2
VREF/2 + 0.1
Analog Input CMRR
fIN = 250 kHz
68
dB
Leakage Current at 25°C
Acquisition phase
1
nA
Input Impedance1
THROUGHPUT
Conversion Rate
Full Bandwidth2
VDD = 4.5 V to 5.5 V
0
250
kSPS
VDD = 2.7 V to 4.5 V
0
200
kSPS
VDD = 2.3 V to 2.7 V
0
190
kSPS
¼ Bandwidth2
VDD = 4.5 V to 5.5 V
0
60
kSPS
VDD = 2.7 V to 4.5 V
0
50
kSPS
VDD = 2.3 V to 2.7 V
0
47
kSPS
Transient Response
Full-scale step, full bandwidth
1.8
μs
Full-scale step, ¼ bandwidth
14.5
μs
ACCURACY
No Missing Codes
16
Bits
Integral Linearity Error
−1.5
±0.5
+1.5
LSB3
Differential Linearity Error
−1
±0.25
+1.5
LSB
Transition Noise
REF = VDD = 5 V
0.5
LSB
Gain Error4
−30
±2
+30
LSB
Gain Error Match
−2
±0.5
+2
LSB
Gain Error Temperature Drift
±1
ppm/°C
Offset Error4
±2
LSB
Offset Error Match
−2
±0.5
+2
LSB
Offset Error Temperature Drift
±1
ppm/°C
Power Supply Sensitivity
VDD = 5 V
± 5%
±1.5
LSB


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