LTC1859 查看數據表（PDF） - Linear Technology
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LTC1859 Datasheet PDF : 22 Pages
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LTC1857/LTC1858/LTC1859
CONVERTER AND MULTPLEXER CHARACTERISTICS The l denotes the specifications which
apply over the full operating temperature range, otherwise specifications are at TA = 25°C. MUXOUT connected to ADC inputs. (Notes 5, 6)
LTC1857
LTC1858
LTC1859
PARAMETER
CONDITIONS
MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
Resolution
l 12
14
16
Bits
No Missing Codes
l 12
14
15
Bits
Transition Noise
Integral Linearity Error
(Notes 7, 15)
0.06
l
±1
0.26
±1.5
1
LSBRMS
±3
LSB
Differential Linearity Error
(Note 15)
l –1
1 –1
1.5 –2
4
LSB
Bipolar Zero Error
(Note 8)
l
±9
±17
±28 LSB
Bipolar Zero Error Drift
±0.1
±0.1
±0.1
ppm/°C
Bipolar Zero Error Match
±4
±6
±10 LSB
Unipolar Zero Error
(Note 8)
l
±6
±15
±25 LSB
Unipolar Zero Error Drift
±1
±1
±1
ppm/°C
Unipolar Zero Error Match
±1.2
±2
±8
LSB
Bipolar Full-Scale Error
External Reference (Note 11) l
Internal Reference (Note 11)
±0.35
±0.45
±0.15
±0.4
±0.1
%
±0.4
%
Bipolar Full-Scale Error Drift
External Reference
Internal Reference
±2.5
±2.5
±2.5
ppm/°C
±7
±7
±7
ppm/°C
Bipolar Full-Scale Error Match
±5
±10
±15 LSB
Unipolar Full-Scale Error
External Reference (Note 11) l
Internal Reference (Note 11)
±0.45
±0.75
±0.25
±0.85
±0.2
%
±0.75
%
Unipolar Full-Scale Error Drift
External Reference
Internal Reference
±2.5
±2.5
±2.5
ppm/°C
±7
±7
±7
ppm/°C
Unipolar Full-Scale Error Match
±5
±12
±15 LSB
Input Common Mode Range
Unipolar Mode
Bipolar Mode
l
0 to 10
l
±10
0 to 10
±10
0 to 10
V
±10
V
Input Common Mode Rejection Ratio
96
96
96
dB
ANALOG INPUT The l denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at TA = 25°C. (Note 5)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Analog Input Range
CH0 to CH7, COM
0 to 5, 0 to 10
V
±5, ±10
V
ADC+, ADC– (Note 3)
0 to 2.048
V
0 to 4.096
V
ADC– ±1.024
V
ADC– ±2.048
V
Impedance
CH0 to CH7, COM
Unipolar
Bipolar
42
kΩ
31
kΩ
MUXOUT+, MUXOUT–
Unipolar
Bipolar
10
kΩ
5
kΩ
ADC+, ADC–
Hi-Z
kΩ
Capacitance
CH0 to CH7, COM
5
pF
Sample Mode ADC+, ADC–
0V to 2.048V, ±1.024V
0V to 4.096V, ±2.048V
24
pF
12
pF
Hold Mode ADC+, ADC–
4
pF
Input Leakage Current
ADC+, ADC–, CONVST = Low
l
±1
µA
185789fb
For more information www.linear.com/LTC1857
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