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LTC2369-18 Datasheet(PDF) 4 Page - Linear Technology

Part # LTC2369-18
Description  18-Bit, 1.6Msps, Pseudo-Differential Unipolar SAR
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC2369-18 Datasheet(HTML) 4 Page - Linear Technology

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LTC2369-18
4
236918fa
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
4ns
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
IPD
Supply Current
Supply Current
Power Down Mode
Power Down Mode
1.6Msps Sample Rate
1.6Msps Sample Rate (CL = 20pF)
Conversion Done (IVDD + IOVDD + IREF, VREF > 2V)
Conversion Done (IVDD + IOVDD + IREF, VREF > 2V, H-Grade)
l
l
l
7.2
0.7
0.9
0.9
8.6
90
140
mA
mA
μA
μA
PD
Power Dissipation
Power Down Mode
Power Down Mode
1.6Msps Sample Rate
Conversion Done (IVDD + IOVDD + IREF, VREF > 2V)
Conversion Done (IVDD + IOVDD + IREF, VREF > 2V, H-Grade)
18
2.25
2.25
21.5
225
315
mW
μW
μW
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
0.85
1.1
mA
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
μA
CIN
Digital Input Capacitance
5pF
VOH
High Level Output Voltage
IO = –500μA
l OVDD – 0.2
V
VOL
Low Level Output Voltage
IO = 500μA
l
0.2
V
IOZ
Hi-Z Output Leakage Current
VOUT = 0V to OVDD
l
–10
10
μA
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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