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參數資料
| 型號： | LTC2379CMS-18#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | ADC |
| 英文描述： | 1-CH 18-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16 |
| 封裝： | LEAD FREE, PLASTIC, MSOP-16 |
| 文件頁數： | 19/24頁 |
| 文件大?。?/td> | 2848K |
| 代理商： | LTC2379CMS-18#PBF |
LTC2379-18
4
237918f
ADC TIMING CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
fSMPL
Maximum Sampling Frequency
l
1.6
Msps
tCONV
Conversion Time
l
360
412
ns
tACQ
Acquisition Time
tACQ = tCYC –tCONV – tBUSYLH (Note 10)
l
200
ns
tCYC
Time Between Conversions
l
625
ns
tCNVH
CNV High Time
l
20
ns
tBUSYLH
CNV
↑ to BUSY Delay
CL = 20pF
l
13
ns
tCNVL
Minimum Low Time for CNV
(Note 11)
l
20
ns
tQUIET
SCK Quiet Time from CNV
↑
(Note 10)
l
20
ns
tSCK
SCK Period
(Notes 11, 12)
l
10
ns
tSCKH
SCK High Time
l
4
ns
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 4)
POWER REQUIREMENTS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VDD
Supply Voltage
l
2.375
2.5
2.625
V
OVDD
Supply Voltage
l
1.71
5.25
V
IVDD
IOVDD
IPD
Supply Current
Power Down Mode
1.6Msps Sample Rate
1.6Msps Sample Rate (CL = 20pF)
Conversion Done (IVDD + IOVDD + IREF)
Conversion Done (IVDD + IOVDD + IREF, H-Grade)
l
7.2
1.1
0.9
8.6
90
140
mA
A
PD
Power Dissipation
Power Down Mode
1.6Msps Sample Rate
Conversion Done (IVDD + IOVDD + IREF)
Conversion Done (IVDD + IOVDD + IREF, H-Grade)
18
2.25
21.5
225
315
mW
W
The l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 4)
REFERENCE INPUT
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VREF
Reference Voltage
(Note 5)
l
2.5
5.1
V
IREF
Reference Input Current
(Note 9)
l
1
1.3
mA
VIHDGC
High Level Input Voltage REF/DGC Pin
l
0.8VREF
V
VILDGC
Low Level Input Voltage REF/DGC Pin
l
0.2VREF
V
The l denotes the specifications which apply over the full operating temperature range, otherwise
specifications are at TA = 25°C. (Note 4)
DIGITAL INPUTS AND DIGITAL OUTPUTS
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIH
High Level Input Voltage
l
0.8 OVDD
V
VIL
Low Level Input Voltage
l
0.2 OVDD
V
IIN
Digital Input Current
VIN = 0V to OVDD
l
–10
10
A
CIN
Digital Input Capacitance
5
pF
VOH
High Level Output Voltage
IO = –500 A
l
OVDD – 0.2
V
VOL
Low Level Output Voltage
IO = 500 A
l
0.2
V
IOZ
Hi-Z Output Leakage Current
VOUT = 0V to OVDD
l
–10
10
A
ISOURCE
Output Source Current
VOUT = 0V
–10
mA
ISINK
Output Sink Current
VOUT = OVDD
10
mA
The l denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4)
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