Datasheet
LTC2446/LTC2447
4
24467fa
TI I G CHARACTERISTICS
UW
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CC
Supply Voltage ● 4.5 5.5 V
I
CC
Supply Current
Conversion Mode CS = 0V (Note 7)
● 811 mA
Sleep Mode CS = V
CC
(Note 7) ● 830 µA
The ● denotes specifications which apply over the full operating temperature range,
otherwise specifications are at T
A
= 25°C. (Note 3)
POWER REQUIRE E TS
WU
The ● denotes specifications which apply over the full
operating temperature range, otherwise specifications are at T
A
= 25°C. (Note 3)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IH
High Level Input Voltage 4.5V ≤ V
CC
≤ 5.5V ● 2.5 V
CS, F
O
V
IL
Low Level Input Voltage 4.5V ≤ V
CC
≤ 5.5V ● 0.8 V
CS, F
O
V
IH
High Level Input Voltage 4.5V ≤ V
CC
≤ 5.5V (Note 8) ● 2.5 V
SCK
V
IL
Low Level Input Voltage 4.5V ≤ V
CC
≤ 5.5V (Note 8) ● 0.8 V
SCK
I
IN
Digital Input Current 0V ≤ V
IN
≤ V
CC
● –10 10 µA
CS, F
O
, EXT, SOI
I
IN
Digital Input Current 0V ≤ V
IN
≤ V
CC
(Note 8) ● –10 10 µA
SCK
C
IN
Digital Input Capacitance 10 pF
CS, F
O
C
IN
Digital Input Capacitance (Note 8) 10 pF
SCK
V
OH
High Level Output Voltage I
O
= –800µA ● V
CC
– 0.5V V
SDO, BUSY
V
OL
Low Level Output Voltage I
O
= 1.6mA ● 0.4V V
SDO, BUSY
V
OH
High Level Output Voltage I
O
= –800µA (Note 9) ● V
CC
– 0.5V V
SCK
V
OL
Low Level Output Voltage I
O
= 1.6mA (Note 9) ● 0.4V V
SCK
I
OZ
Hi-Z Output Leakage ● –10 10 µA
SDO
DIGITAL I PUTS A D DIGITAL OUTPUTS
UU
The ● denotes specifications which apply over the full operating temperature
range, otherwise specifications are at T
A
= 25°C. (Note 3)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
f
EOSC
External Oscillator Frequency Range ● 0.1 20 MHz
t
HEO
External Oscillator High Period ● 25 10000 ns
t
LEO
External Oscillator Low Period ● 25 10000 ns
t
CONV
Conversion Time OSR = 256 ● 0.99 1.13 1.33 ms
OSR = 32768
● 126 145 170 ms
External Oscillator (Notes 10, 13) ●
40 • OSR +170
f
EOSC
(kHz)
ms
f
ISCK
Internal SCK Frequency Internal Oscillator (Note 9) ● 0.8 0.9 1 MHz
External Oscillator (Notes 9, 10) f
EOSC
/10 Hz