Datasheet
3
LTC1392
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
I
ON LEAKAGE
On-Channel Leakage Current (Note 6) ● ±1 µA
I
OFF LEAKAGE
Off-Channel Leakage Current (Note 6) ● ±1 µA
V
IH
High Level Input Voltage V
CC
= 5.25V ● 2V
V
IL
Low Level Input Voltage V
CC
= 4.75V ● 0.8 V
I
IH
High Level Input Current V
IN
= V
CC
● 5 µA
I
IL
Low Level Input Current V
IN
= 0V ● –5 µA
V
OH
High Level Output Voltage V
CC
= 4.75V, I
OUT
= 10µA ● 4.5 4.74 V
V
CC
= 4.75V, I
OUT
= 360µA 2.4 4.72 V
V
OL
Low Level Output Voltage V
CC
= 4.75V, I
OUT
= 1.6mA ● 0.4 V
I
OZ
Hi-Z Output Current CS = High ● ±5 µA
I
SOURCE
Output Source Current V
OUT
= 0V –25 mA
I
SINK
Output Sink Current V
OUT
= V
CC
45 mA
I
CC
Supply Current CS = High ● 0.1 5 µA
CS = Low, V
CC
= 5V ● 0.7 1 mA
t
SMPL
Analog Input Sample Time See Figure 1 1.5 CLK Cycles
t
CONV
Conversion Time See Figure 1 10 CLK Cycles
t
dDO
Delay Time, CLK↓ to D
OUT
Data Valid C
LOAD
= 100pF ● 150 300 ns
t
en
Delay Time, CLK↓ to D
OUT
Data Enabled C
LOAD
= 100pF ● 60 150 ns
t
dis
Delay Time, CS ↑ to D
OUT
Hi-Z ● 170 450 ns
t
hDO
Time Output Data Remains Valid After CLK↓ C
LOAD
= 100pF 30 ns
t
f
D
OUT
Fall Time C
LOAD
= 100pF ● 70 250 ns
t
r
D
OUT
Rise Time C
LOAD
= 100pF ● 25 100 ns
C
IN
Input Capacitance Analog Input On-Channel 30 pF
Analog Input Off-Channel 5 pF
Digital Input 5 pF
(Note 2, 3)
E
LECTR
IC
AL C CHARA TERIST
ICS
RECOM ENDED OPERATING CONDITIONS
UUU
U
WW
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CC
Supply Voltage 4.5 6 V
f
CLK
Clock Frequency V
CC
= 5V 150 250 350 kHz
t
CYC
Total Cycle Time f
CLK
= 250kHz 74 µs
Temperature Conversion Only 144 µs
t
hDI
Hold Time, D
IN
After CLK↑ V
CC
= 5V 150 ns
t
suCS
Setup Time CS↓ Before First CLK↑ (See Figure 1) V
CC
= 5V 2 µs
t
WAKEUP
Wakeup Time CS↓ Before Start Bit↑ (See Figure 1) V
CC
= 5V 10 µs
Temperature Conversion Only 80 µs
t
suDI
Setup Time, D
IN
Stable Before CLK↑ V
CC
= 5V 150 ns
t
WHCLK
Clock High Time V
CC
= 5V 1.6 µs
t
WLCLK
Clock Low Time V
CC
= 5V 2 µs
t
WHCS
CS High Time Between Data Transfer Cycles V
CC
= 5V, f
CLK
= 250kHz 2 µs
t
WLCS
CS Low Time During Data Transfer V
CC
= 5V, f
CLK
= 250kHz 72 µs
Temperature Conversion Only 142 µs