LTC1861I データシートの表示（PDF） - Linear Technology
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LTC1861I Datasheet PDF : 16 Pages
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LTC1860/LTC1861
CONVERTER AND MULTIPLEXER CHARACTERISTICS
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C.
VCC = 5V, VREF = 5V, fSCK = fSCK(MAX) as defined in Recommended Operating Conditions, unless otherwise noted.
SYMBOL
CONDITIONS
MIN TYP
MAX
UNITS
Resolution
l 12
Bits
No Missing Codes Resolution
l 12
Bits
INL
(Note 3)
l
±1
LSB
Transition Noise
Gain Error
0.07
LSBRMS
l
±20
mV
Offset Error
Input Differential Voltage Range
Absolute Input Range
VREF Input Range
Analog Input Leakage Current
LTC1860 SO-8 and MSOP, LTC1861 MSOP
LTC1861 SO-8
VIN = IN+ – IN–
IN+ Input
IN– Input
LTC1860 SO-8 and MSOP, LTC1861 MSOP
(Note 4)
l
±2
±5
mV
l
±3
±7
mV
l
0
VREF
V
–0.05
–0.05
1
VCC + 0.05
V
VCC/2
V
VCC
V
l
±1
μA
CIN Input Capacitance
In Sample Mode
During Conversion
12
pF
5
pF
DYNAMIC ACCURACY
TA = 25°C. VCC = 5V, fSAMPLE = 250kHz, unless otherwise specified.
SYMBOL
SNR
S/(N + D)
THD
PARAMETER
Signal-to-Noise Ratio
Signal-to-Noise Plus Distortion Ratio
Total Hamonic Distortion Up to 5th Harmonic
Full Power Bandwidth
Full Linear Bandwidth
CONDITIONS
100kHz Input Signal
100kHz Input Signal
S/(N + D) ≥ 68dB
MIN TYP MAX UNITS
72
dB
71
dB
77
dB
20
MHz
125
kHz
DIGITAL AND DC ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply
over the full operating temperature range, otherwise specifications are TA = 25°C. VCC = 5V, VREF = 5V, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VIH
High Level Input Voltage
VCC = 5.25V
l 2.4
V
VIL
Low Level Input Voltage
VCC = 4.75V
l
0.8
V
IIH
High Level Input Current
VIN = VCC
l
2.5
μA
IIL
Low Level Input Current
VIN = 0V
l
–2.5
μA
VOH
High Level Output Voltage
VCC = 4.75V, IO = 10μA
VCC = 4.75V, IO = 360μA
VOL
Low Level Output Voltage
VCC = 4.75V, IO = 1.6mA
l 4.5
4.74
V
l 2.4
4.72
V
l
0.4
V
18601fa
4
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