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LTC1850CFW Datasheet(PDF) 5 Page - Linear Technology

Part # LTC1850CFW
Description  8-Channel, 10-Bit/12-Bit, 1.25Msps Sampling ADCs
PDF  28 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1850CFW Datasheet(HTML) 5 Page - Linear Technology

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5
LTC1850/LTC1851
18501f
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
fSAMPLE(MAX)
Maximum Sampling Frequency
q
1.25
MHz
Acquisition + Conversion
q
800
ns
tCONV
Conversion Time
q
650
ns
tACQ
Acquisition Time
q
150
ns
t1
CS to RD Setup Time
(Notes 9, 10)
q
0ns
t2
CS to CONVST Setup Time
(Notes 9, 10)
q
10
ns
t3
CS to SHDN Setup Time
(Notes 9, 10)
200
ns
t4
SHDN to CONVST Wake-Up Time
Nap Mode (Note 10)
200
ns
Sleep Mode, 10
µF REFCOMP
10
ms
Bypass Capacitor (Note 10)
t5
CONVST Low Time
(Notes 10, 11)
q
50
ns
t6
CONVST to BUSY Delay
CL = 25pF
10
ns
q
60
ns
t7
Data Ready Before BUSY
20
35
ns
q
15
ns
t8
Delay Between Conversions
(Note 10)
q
50
ns
t9
Wait Time RD After BUSY
q
–5
ns
t10
Data Access Time After RD
CL = 25pF
20
35
ns
q
45
ns
CL = 100pF
25
45
ns
q
60
ns
t11
BUS Relinquish Time
10
30
ns
0
°C to 70°C
q
35
ns
–40
°C to 85°C
q
40
ns
t12
RD Low Time
q
t10
ns
t13
CONVST High Time
(Note 10)
q
50
ns
t14
Latch Setup Time
(Notes 9, 10)
q
10
ns
t15
Latch Hold Time
(Notes 9, 10)
q
10
ns
t16
WR Low Time
(Note 10)
q
50
ns
The q denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 5)
TI I G CHARACTERISTICS
The q denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 5)
POWER REQUIRE E TS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VDD
Positive Supply Voltage
(Note 10)
q
4.75
5.25
V
OVDD
Output Positive Supply Voltage
(Note 10)
q
2.7
5.25
V
IDD
Positive Supply Current
VDD = VDD = OVDD = 5V,
q
810
mA
fSAMPLE = 1.25MHz
PDISS
Power Dissipation
q
40
50
mW
Power Down Positive Supply Current
Nap Mode
SHDN = 0V, CS = 0V
1
mA
Sleep Mode
SHDN = 0V, CS = 5V
50
µA
Power Down Power Dissipation
Nap Mode
SHDN = 0V, CS = 0V
5
mW
Sleep Mode
SHDN = 0V, CS = 5V
0.25
mW



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