Datasheet

4
LTC1273
LTC1275/LTC1276
127356fa
LTC1273A/LTC1275A/LTC1276A
LTC1273B/LTC1275B/LTC1276B
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IH
High Level Input Voltage V
DD
= 5.25V ● 2.4 V
V
IL
Low Level Input Voltage V
DD
= 4.95V ● 0.8 V
I
IN
Digital Input Current V
IN
= 0V to V
DD
● ±10 µA
C
IN
Digital Input Capacitance 5pF
V
OH
High Level Output Voltage V
DD
= 4.95V
I
O
= –10µA 4.7 V
I
O
= –200µA ● 4.0 V
V
OL
Low Level Output Voltage V
DD
= 4.95V
I
O
= 160µA 0.05 V
I
O
= 1.6mA ● 0.10 0.4 V
I
OZ
High Z Output Leakage D11-D0/8 V
OUT
= 0V to V
DD
, CS High ● ±10 µA
C
OZ
High Z Output Capacitance D11-D0/8 CS High (Note 9 ) ● 15 pF
I
SOURCE
Output Source Current V
OUT
= 0V –10 mA
I
SINK
Output Sink Current V
OUT
= V
DD
10 mA
DIGITAL I PUTS A D DIGITAL OUTPUTS
UU
The ● denotes the specifications which apply over the
full operating temperature range, otherwise specfications are at T
A
= 25°C. (Note 5)
LTC1273A/LTC1275A/LTC1276A
LTC1273B/LTC1275B/LTC1276B
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
DD
Positive Supply Voltage LTC1273/LTC1276 (Notes 10, 11) 4.95 5.25 V
LTC1275 (Note 10) 4.75 5.25 V
V
SS
Negative Supply Voltage LTC1275 (Note 10) – 2.45 –5.25 V
LTC1276 (Notes 10, 11) –4.95 –5.25 V
I
DD
Positive Supply Current ● 15 25 mA
I
SS
Negative Supply Current LTC1275/LTC1276 ● 0.065 0.200 mA
P
D
Power Dissipation 75 mW
POWER REQUIRE E TS
W
U
The ● denotes the specifications which apply over the full operating temperature
range, otherwise specfications are at T
A
= 25°C. (Note 5)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
f
SAMPLE(MAX)
Maximum Sampling Frequency (Note 10)
Commercial
● 300 kHz
Military ● 250 kHz
t
CONV
Conversion Time Commercial ● 2.7 µs
Military ● 3.0 µs
t
1
CS to RD Setup Time ● 0ns
t
2
RD to BUSY Delay C
L
= 50pF 80 190 ns
Commercial
● 230 ns
Military ● 270 ns
TI I G CHARACTERISTICS
W
U
LTC1273A/LTC1275A/LTC1276A
LTC1273B/LTC1275B/LTC1276B
The ● denotes the specifications which apply over the full operating temperature
range, otherwise specfications are at T
A
= 25°C. See Timing Characteristics Figures (Note 5)