LTC1273(Rev0) Просмотр технического описания (PDF) - Linear Technology
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LTC1273 Datasheet PDF : 24 Pages
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LTC1273
LTC1275/LTC1276
U
U
DIGITAL I PUTS A D DIGITAL OUTPUTS (Note 5)
SYMBOL PARAMETER
CONDITIONS
VOL
Low Level Output Voltage
VDD = 4.95V
IO = 160µA
IO = 1.6mA
IOZ
High Z Output Leakage D11-D0/8
VOUT = 0V to VDD, CS High
COZ
High Z Output Capacitance D11-D0/8
CS High (Note 9 )
ISOURCE Output Source Current
VOUT = 0V
ISINK
Output Sink Current
VOUT = VDD
WU
POWER REQUIRE E TS (Note 5)
LTC1273A/LTC1275A/LTC1276A
LTC1273B/LTC1275B/LTC1276B
MIN TYP MAX UNITS
0.05
V
q
0.10 0.4
V
q
±10
µA
q
15
pF
– 10
mA
10
mA
SYMBOL PARAMETER
CONDITIONS
VDD
Positive Supply Voltage
LTC1273/LTC1276 (Notes 10, 11)
LTC1275 (Note 10)
VSS
Negative Supply Voltage
LTC1275 (Note 10)
LTC1276 (Notes 10, 11)
IDD
Positive Supply Current
q
ISS
Negative Supply Current
LTC1275/LTC1276
q
PD
Power Dissipation
WU
TI I G CHARACTERISTICS See Timing Characteristics Figures (Note 5)
LTC1273A/LTC1275A/LTC1276A
LTC1273B/LTC1275B/LTC1276B
MIN TYP MAX
4.95
5.25
4.75
5.25
– 2.45
– 4.95
– 5.25
– 5.25
15
25
0.065 0.200
75
UNITS
V
V
V
V
mA
mA
mW
SYMBOL
PARAMETER
fSAMPLE(MAX) Maximum Sampling Frequency
tCONV
t1
t2
Conversion Time
CS to RD Setup Time
RD to BUSY Delay
t3
Data Access Time After RD↓
t4
RD Pulse Width
t5
CS to RD Hold Time
t6
Data Setup Time After BUSY↑
CONDITIONS
(Note 10)
Commercial
Military
Commercial
Military
CL = 50pF
Commercial
Military
CL = 20pF
Commercial
Military
CL = 100pF
Commercial
Military
Commercial
Military
LTC1273A/LTC1275A/LTC1276A
LTC1273B/LTC1275B/LTC1276B
MIN TYP MAX UNITS
q
300
kHz
q
250
kHz
q
2.7
µs
q
3.0
µs
q
0
ns
80
190
ns
q
230
ns
q
270
ns
40
90
ns
q
110
ns
q
120
ns
50
125
ns
q
150
ns
q
170
ns
q
t3
ns
q
0
ns
40
70
ns
q
90
ns
q
100
ns
4
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