AD7280 データシートの表示（PDF） - Analog Devices
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AD7280 Datasheet PDF : 33 Pages
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AD7280
Preliminary Technical Data
SPECIFICATIONS
VDD = 7.5 V to 30 V, VSS = 0 V, DVCC = AVCC = VREG, VDRIVE = 2.7 V to 5.25 V, TA = -40oC to 105oC, unless otherwise noted
Table 1.
Parameter1
Min
Typ
DC ACCURACY [Vin(0) to Vin(6)]2
Resolution
12
Integral Nonlinearity
Differential Nonlinearity
Offset Error
1
Offset Error Drift
3
Offset Error Match
1
Gain Error
1
Gain Error Drift
2
Gain Error Match
1
ADC Unadjusted Error3
0.05
0.08
Total Unadjusted Error4
0.07
0.1
ANALOG INPUTS [Vin(0) to
Vin(6)]
Pseudo Differential Input
Voltage
Vin(n) – Vin(n-1)
1V
Absolute Input Voltage
VCM - VREF
Common Mode Input Voltage 0.5
DC Leakage Current
±70
Max
Unit
Test Conditions/Comments
Bits
No Missing Codes
±1
LSB
±1
LSB
LSB
ppm/oC
LSB
LSB
ppm/oC
LSB
0.1
%
-40oC to 85oC
0.3
%
-40oC to 105oC
0.2
%
-40oC to 85oC
0.5
%
-40oC to 105oC
2VREF
V
VCM +
V
VREF
27.5
V
nA
CNVST pulse every 100ms
Input Capacitance
DC ACCURACY [VT1 to VT6]2
Resolution
12
Integral Nonlinearity
Differential Nonlinearity
Offset Error
Offset Error Drift
Offset Error Match
Gain Error
Gain Error Drift
Gain Error Match
ADC Unadjusted Error5
Total Unadjusted Error6
ANALOG INPUTS (VT1 to VT6)
Input Voltage Range
0
Leakage Current
15
pF
When in track
3
pF
When in hold
±1
±1
2
2
2
2
1.2
2
0.1
0.2
0.16
0.6
0.15
0.4
0.2
1
Bits
LSB
LSB
LSB
ppm/oC
LSB
LSB
ppm/oC
LSB
%
%
%
%
No Missing Codes
-40oC to 85oC
-40oC to 105oC
-40oC to 85oC
-40oC to 105oC
2VREF
V
±70
nA
CNVST pulse every 100ms
Input Capacitance
15
3
DYNAMIC PERFORMANCE
Common Mode Rejection Ratio
-75
[CMRR]
pF
When in track
pF
When in hold
dB
Up to 10kHz ripple frequency
Rev. PrD | Page 2 of 33
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