LTC1090CN Ver la hoja de datos (PDF) - Linear Technology
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LTC1090CN Datasheet PDF : 28 Pages
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LTC1090
ABSOLUTE AXI U RATI GS
(Notes 1 and 2)
Supply Voltage (VCC) to GND or V – ................................ 12V
Negative Supply Voltage (V –) ..................... – 6V to GND
Voltage:
Analog and Reference
Inputs .................................... (V –) –0.3V to VCC 0.3V
Digital Inputs ......................................... –0.3V to 12V
Digital Outputs .............................. – 0.3V to VCC 0.3V
Power Dissipation .............................................. 500mW
Operating Temperature Range
LTC1090AC/LTC1090C ........................–40°C to 85°C
LTC1090AM/LTC1090M (OBSOLETE) ...... –55°C to 125°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
CH0 1
CH1 2
CH2 3
CH3 4
CH4 5
CH5 6
CH6 7
CH7 8
COM 9
DGND 10
TOP VIEW
20 VCC
19 ACLK
18 SCLK
17 DIN
16 DOUT
15 CS
14 REF+
13 REF–
12 V –
11 AGND
ORDER PART
NUMBER
LTC1090ACN
LTC1090CN
LTC1090CSW
SW PACKAGE
N PACKAGE
20-LEAD PLASTIC SO WIDE 20-LEAD PDIP
TJMAX = 150°C, θJA = 70°C/W
TJMAX = 110°C, θJA = 90°C/W
J PACKAGE
20-LEAD CERDIP
TJMAX = 150°C θJA = 70° C/W
LTC1090AMJ
LTC1090MJ
LTC1090ACJ
LTC1090CJ
OBSOLETE PACKAGE
Consider the SW or N Package for Alternate Source
LTC1090 • POI01
Consult LTC Marketing for parts specified with wider operating temperature
ranges.
RECO E DED OPERATI G CO DITIO S
SYMBOL
VCC
V–
fSCLK
fACLK
PARAMETER
Positive Supply Voltage
Negative Supply Voltage
Shift Clock Frequency
A/D Clock Frequency
tCYC
Total Cycle Time
thCS
Hold Time, CS Low After Last SCLK↓
thDI
Hold Time, DIN After SCLK↑
tsuCS
Setup Time CS↓ Before Clocking in First Address Bit (Note 9)
tsuDI
tWHACLK
tWLACLK
tWHCS
Setup Time, DIN Stable Before SCLK↑
ACLK High Time
ACLK Low Time
CS High Time During Conversion
CONDITIONS
V– = 0V
VCC = 5V
VCC = 5V
VCC = 5V
25°C
85°C
125°C
See Operating Sequence
VCC = 5V
VCC = 5V
VCC = 5V
VCC = 5V
VCC = 5V
VCC = 5V
VCC = 5V
LTC1090/LTC1090A
MIN
MAX
4.5
10
– 5.5
0
0
1.0
0.01
2.0
0.05
2.0
0.25
2.0
10 SCLK +
48 ACLK
0
150
2 ACLK Cycles
1µs
400
127
200
44
UNITS
V
V
MHz
MHz
Cycles
ns
ns
ns
ns
ns
ACLK
Cycles
1090fc
2
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