Datasheet

(V
CC
= 3.3V, V
RS+
= V
RS-
= +12V, V
SENSE
= (V
RS+
- V
RS-
) = 0V, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are
at T
A
= +25°C.) (Note 2)
Note 2: All devices are 100% production tested at T
A
= +25°C. Temperature limits are guaranteed by design.
Note 3: V
OS
and gain error of current-sense amplifier extrapolated from a two-point measurement made at V
SENSE
= (V
RS
+ - V
RS-
)
= 5mV to 50mV in gain of 8x, 5mV to 100mV in gain of 4x, and 10mV to 400mV in gain of 1x.
Note 4: Guaranteed by design.
Note 5: C
B
is in pF.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
POWER-SUPPLY CHARACTERISTICS
Power-Supply Input Range V
CC
Guaranteed by PSRR 2.7 5.5 V
Quiescent Current I
CC
1.6 2.6 mA
Shutdown Current I
SHDN
No activity on SCL 5 10 µA
I
2
C TIMING CHARACTERISTICS (COMPATIBLE WITH SMBus)
Serial-Clock Frequency f
SCL
0 400 kHz
Bus Free Time Between a STOP
and a START Condition
t
BUF
1.3 µs
Hold Time, (Repeated) START
Condition
t
DH,STA
0.6 µs
SCL Clock Low Period t
LOW
1.3 µs
SCL Clock High Period t
HIGH
0.6 µs
Setup Time for a Repeated
START Condition
t
SU,STA
0.6 µs
Data Hold Time t
DH,DAT
0 900 µs
Data Setup Time t
SU,DAT
100 ns
SDA/SCL Receiving Rise Time t
R
(Note 5) 20 + 0.1C
B
300
nsSDA/SCL Receiving Fall Time t
F
(Note 5) 20 + 0.1C
B
300
SDA Transmitting Fall Time t
F
(Note 5) 20 + 0.1C
B
250
STOP Condition Setup Time t
SU,STO
0.6 µs
Bus Capacitance C
B
400 pF
Pulse Width of Spike Suppressed t
SP
50 ns
SCL
SDA
t
R
t
F
t
BUF
START
CONDITION
STOP
CONDITION
REPEATED START CONDITION
START CONDITION
t
SU,STO
t
HD,STA
t
SU,STA
t
HD,DAT
t
SU,DAT
t
LOW
t
HIGH
t
HD,STA
MAX9611/MAX9612 High-Side, Current-Sense Ampliers with
12-Bit ADC and Op Amp/Comparator
www.maximintegrated.com
Maxim Integrated │ 5
Electrical Characteristics (continued)
I
2
C Timing Diagram