Datasheet

LTC2301/LTC2305
5
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POWER REQUIREMENTS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
DD
Supply Voltage
l
4.75 5 5.25 V
I
DD
Supply Current
Nap Mode
Sleep Mode
14ksps Sample Rate
SLP Bit = 0, Conversion Done
SLP Bit = 1, Conversion Done
l
l
l
2.3
225
7
3.5
400
15
mA
µA
µA
P
D
Power Dissipation
Nap Mode
Sleep Mode
14ksps Sample Rate
SLP Bit = 0, Conversion Done
SLP Bit = 1, Conversion Done
l
l
l
11.5
1.125
35
17.5
2
75
mW
mW
µW
The l denotes the specifi cations which apply over the full operating temperature
range, otherwise specifi cations are at T
A
= 25°C. (Note 4)
I
2
C TIMING CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
f
SCL
SCL Clock Frequency
l
400 kHz
t
HD(SDA)
Hold Time (Repeated) START Condition
l
0.6 µs
t
LOW
LOW Period of the SCL Pin
l
1.3 µs
t
HIGH
HIGH Period of the SCL Pin
l
0.6 µs
t
SU(STA)
Set-Up Time for a Repeated START
Condition
l
0.6 µs
t
HD(DAT)
Data Hold Time
l
0 0.9 µs
t
SU(DAT)
Data Set-Up Time
l
100 ns
t
r
Rise Time for SDA/SCL Signals (Note 11)
l
20 + 0.1C
B
300 ns
t
f
Fall Time for SDA/SCL Signals (Note 11)
l
20 + 0.1C
B
300 ns
t
SU(STO)
Set-Up Time for STOP Condition
l
0.6 µs
t
BUF
Bus Free Time Between a Second START
Condition
l
1.3 µs
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. (Note 4)
ADC TIMING CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. (Note 4)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
f
SMPL
Throughput Rate (Successive Reads)
l
14 ksps
t
CONV
Conversion Time
l
1.3 1.6 µs
t
ACQ
Acquisition Time (Note 8)
l
240 ns
t
REFWAKE
REFCOMP Wakeup Time (Note 12) C
REFCOMP
= 10µF, C
REF
= 2.2µF 200 ms