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AD7811 데이터시트(PDF) 2 Page - Analog Devices

부품명 AD7811
상세설명  2.7 V to 5.5 V, 350 kSPS, 10-Bit 4-/8-Channel Sampling ADCs
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AD7811 데이터시트(HTML) 2 Page - Analog Devices

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–2–
REV. B
AD7811/AD7812–SPECIFICATIONS
Parameter
Y Version
Unit
Test Conditions/Comments
DYNAMIC PERFORMANCE
fIN = 30 kHz Any Channel, fSAMPLE = 350 kHz
Signal to (Noise + Distortion) Ratio
1
58
dB min
VREF Internal or External
Total Harmonic Distortion (THD)
1
–66
dB max
Peak Harmonic or Spurious Noise
1
–80
dB typ
Intermodulation Distortion
1, 2
fa = 29 kHz, fb = 30 kHz
Second Order Terms
–67
dB max
Third Order Terms
–67
dB max
Channel-to-Channel Isolation
1, 2
–80
dB typ
fIN = 20 kHz
DC ACCURACY
Any Channel
Resolution
10
Bits
Minimum Resolution for Which
No Missing Codes are Guaranteed
10
Bits
Relative Accuracy
1
±1
LSB max
Differential Nonlinearity
1
±1
LSB max
Gain Error
1
±2
LSB max
Gain Error Match
1
±0.75
LSB max
Offset Error
1
±2
LSB max
Offset Error Match
1
±0.75
LSB max
ANALOG INPUT
Input Voltage Range
0
V min
VREF
V max
Input Leakage Current2
±1
µA max
Input Capacitance
2
20
pF max
REFERENCE INPUTS
2
VREF Input Voltage Range
1.2
V min
VDD
V max
Input Leakage Current
±3
µA max
Input Capacitance
20
pF max
ON-CHIP REFERENCE
Nominal 2.5 V
Reference Error
±2.5
% max
Temperature Coefficient
50
ppm/
°C typ
LOGIC INPUTS
2
VINH, Input High Voltage
2.4
V min
VDD = 5 V
± 10%
VINL, Input Low Voltage
0.8
V max
VDD = 5 V
± 10%
VINH, Input High Voltage
2
V min
VDD = 3 V
± 10%
VINL, Input Low Voltage
0.4
V max
VDD = 3 V
± 10%
Input Current, IIN
±1
µA max
Typically 10 nA, VIN = 0 V to VDD
Input Capacitance, CIN
8
pF max
LOGIC OUTPUTS
Output High Voltage, VOH
ISOURCE = 200
µA
4V min
VDD = 5 V
± 10%
2.4
V min
VDD = 3 V
± 10%
Output Low Voltage, VOL
ISINK = 200
µA
0.4
V max
High Impedance Leakage Current
±1
µA max
High Impedance Capacitance
15
pF max
CONVERSION RATE
Conversion time
2.3
µs max
Track/Hold Acquisition Time
1
200
ns max
(VDD = 2.7 V to 3.6 V, VDD = 5 V
10%, GND = 0 V, VREF = VDD
[EXT]. All specifications –40 C to +105 C unless otherwise noted.)


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