LTC1090_15 Datasheet, PDF (2/28 Pages) Linear Technology – Single Chip 10-Bit Data Acquisition System

LTC1090
ABSOLUTE AXI U RATI GS
(Notes 1 and 2)
Supply Voltage (V_CC) to GND or V ^– ................................ 12V
Negative Supply Voltage (V ^–) ..................... – 6V to GND
Voltage:
Analog and Reference
Inputs .................................... (V ^–) –0.3V to V_CC 0.3V
Digital Inputs ......................................... –0.3V to 12V
Digital Outputs .............................. – 0.3V to V_CC 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 V_CC
19 ACLK
18 SCLK
17 D_IN
16 D_OUT
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
T_JMAX = 150°C, θ_JA = 70°C/W
T_JMAX = 110°C, θ_JA = 90°C/W
J PACKAGE
20-LEAD CERDIP
T_JMAX = 150°C θ_JA = 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
V_CC
V^–
f_SCLK
f_ACLK
PARAMETER
Positive Supply Voltage
Negative Supply Voltage
Shift Clock Frequency
A/D Clock Frequency
t_CYC
Total Cycle Time
t_hCS
Hold Time, CS Low After Last SCLK^↓
t_hDI
Hold Time, D_IN After SCLK↑
t_suCS
Setup Time CS↓ Before Clocking in First Address Bit (Note 9)
t_suDI
t_WHACLK
t_WLACLK
t_WHCS
Setup Time, D_IN Stable Before SCLK^↑
ACLK High Time
ACLK Low Time
CS High Time During Conversion
CONDITIONS
V^– = 0V
V_CC = 5V
V_CC = 5V
V_CC = 5V
25°C
85°C
125°C
See Operating Sequence
V_CC = 5V
V_CC = 5V
V_CC = 5V
V_CC = 5V
V_CC = 5V
V_CC = 5V
V_CC = 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