Datasheet

Industry’s Lowest-Power
Ambient Light Sensor with ADC
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 1.8V, T
MIN
to T
MAX
= -40NC to +85NC, unless otherwise noted.) (Note 1)
Note 1:
All devices are 100% production tested at T
A
= +25NC. Temperature limits are guaranteed by design.
Note 2: Green 538nm LED chosen for production is such that the IC responds to 100 lux fluorescent light with 100 lux.
Note 3: With respect to green LED 538nm response.
Note 4: A master device must provide a hold time of at least 300ns for the SDA signal (referred to V
IL
of the SCL signal) to bridge
the undefined region of SCL’s falling edge.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
I
2
C TIMING
Serial-Clock Frequency f
SCL
400 kHz
Bus Free Time Between a STOP
and a START Condition
t
BUF
1.3 Fs
Hold Time (Repeated) START
Condition
t
HD,STA
0.6 Fs
Low Period of the SCL Clock t
LOW
1.3 Fs
High Period of the SCL Clock t
HIGH
0.6 Fs
Setup Time for a Repeated
START Condition
t
SU,STA
0.6 Fs
Data Hold Time t
HD,DAT
(Note 4) 0 0.9 Fs
Data Setup Time t
SU,DAT
100 ns
Fall Time of SDA Transmitting t
F
I
SINK
P 6mA, t
R
and t
F
are measured
between 0.3 x V
DD
and 0.7 x V
DD
100 ns
Setup Time for STOP Condition t
SU,STO
0.6 Fs
Pulse Width of Spike
Suppressed
t
SP
Input filters on the SDA and SCL inputs
suppress noise spikes
0 50 ns
Maxim Integrated
3
MAX44009