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LTC2327-18 数据表(PDF) 5 Page - Linear Technology

部件名 LTC2327-18
功能描述  True Bipolar, Pseudo-Differential Input ADC with 95dB SNR
Download  26 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC2327-18 数据表(HTML) 5 Page - Linear Technology

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LTC2327-18
5
232718fa
For more information www.linear.com/LTC2327-18
aDc TiMing characTerisTics
power requireMenTs
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 4)
The l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 4)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VDD
Supply Voltage
l
4.75
5
5.25
V
OVDD
Supply Voltage
l
1.71
5.25
V
IVDD
IOVDD
INAP
ISLEEP
Supply Current
Supply Current
Nap Mode Current
Sleep Mode Current
500ksps Sample Rate (IN+ = –10.24V, IN= 0V)
500ksps Sample Rate (IN+ = IN= 0V)
500ksps Sample Rate (CL = 20pF)
Conversion Done (IVDD + IOVDD, IN+ = –10.24V, IN= 0V)
Sleep Mode (IVDD + IOVDD)
l
l
l
11.4
7.2
0.1
8.4
60
14
10
225
mA
mA
mA
mA
μA
PD
Power Dissipation
Nap Mode
Sleep Mode
500ksps Sample Rate (IN+ = –10.24V, IN= 0V)
500ksps Sample Rate (IN+ = IN= 0V)
Conversion Done (IVDD + IOVDD, IN+ = –10.24V, IN= 0V)
Sleep Mode (IVDD + IOVDD)
l
l
l
57
36
42
0.3
70
50
1.1
mW
mW
mW
mW
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
fSMPL
Maximum Sampling Frequency
l
500
ksps
tCONV
Conversion Time
l
1
1.5
µs
tACQ
Acquisition Time
tACQ = tCYC – tHOLD (Note 11)
l
1.460
µs
tHOLD
Maximum Time between Acquisitions
l
540
ns
tCYC
Time Between Conversions
l
2
µs
tCNVH
CNV High Time
l
20
ns
tBUSYLH
CNV↑ to BUSY Delay
CL = 20pF
l
13
ns
tCNVL
Minimum Low Time for CNV
(Note 12)
l
20
ns
tQUIET
SCK Quiet Time from CNV↑
(Note 11)
l
20
ns
tSCK
SCK Period
(Notes 12, 13)
l
10
ns
tSCKH
SCK High Time
l
4
ns
tSCKL
SCK Low Time
l
4
ns
tSSDISCK
SDI Setup Time From SCK↑
(Note 12)
l
4
ns
tHSDISCK
SDI Hold Time From SCK↑
(Note 12)
l
1
ns
tSCKCH
SCK Period in Chain Mode
tSCKCH = tSSDISCK + tDSDO (Note 12)
l
13.5
ns
tDSDO
SDO Data Valid Delay from SCK↑
CL = 20pF, OVDD = 5.25V
CL = 20pF, OVDD = 2.5V
CL = 20pF, OVDD = 1.71V
l
l
l
7.5
8
9.5
ns
ns
ns
tHSDO
SDO Data Remains Valid Delay from SCK↑
CL = 20pF (Note 11)
l
1
ns
tDSDOBUSYL
SDO Data Valid Delay from BUSY↓
CL = 20pF (Note 11)
l
5
ns
tEN
Bus Enable Time After RDL↓
(Note 12)
l
16
ns
tDIS
Bus Relinquish Time After RDL↑
(Note 12)
l
13
ns
tWAKE
REFBUF Wakeup Time
CREFBUF = 47μF, CREFIN = 100nF
200
ms


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