Typical operating characteristics, Electrical characteristics (continued) – Rainbow Electronics MAX9634 User Manual
Page 3
MAX9634
1µA, 4-Bump UCSP/SOT23,
Precision Current-Sense Amplifier
_______________________________________________________________________________________
3
Note 1: All devices are 100% production tested at T
A
= +25°C. All temperature limits are guaranteed by design.
Note 2: V
OUT
= 0. I
CC
is the total current into RS+ plus RS- pins.
Note 3: V
OS
is extrapolated from measurements for the gain-error test.
Note 4: Gain error is calculated by applying two values of V
SENSE
and calculating the error of the slope vs. the ideal:
Gain = 25, V
SENSE
is 20mV and 120mV.
Gain = 50, V
SENSE
is 10mV and 60mV.
Gain = 100, V
SENSE
is 5mV and 30mV.
Gain = 200, V
SENSE
is 2.5mV and 15mV.
Note 5: The device is stable for any external capacitance value.
Note 6: V
OH
is the voltage from V
RS-
to V
OUT
with V
SENSE
= 3.6V/gain.
ELECTRICAL CHARACTERISTICS (continued)
(V
RS+
= V
RS-
= 3.6V, V
SENSE
= (V
RS+
- V
RS-
) = 0V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUT High Voltage
V
OH
V
OH
= V
RS-
- V
OUT
(Note 6)
0.1
0.2
V
V
SENSE
= 50mV, gain = 25
125
V
SENSE
= 50mV, gain = 50
60
V
SENSE
= 50mV, gain = 100
30
Small-Signal Bandwidth
(Note 5)
BW
V
SENSE
= 50mV, gain = 200
15
kHz
Output Settling Time
t
S
1% final value, V
SENSE
= 50mV
100
µs
Power-Up Time
t
ON
1% final value, V
SENSE
= 50mV
200
µs
Typical Operating Characteristics
(V
RS+
= V
RS-
= 3.6V, T
A
= +25°C, unless otherwise noted.)
0
10
5
20
15
25
30
-0.4 -0.3 -0.2 -0.1
0
0.2
0.3
0.1
0.4
INPUT OFFSET VOLTAGE HISTOGRAM
MAX9634 toc01
INPUT OFFSET VOLTAGE (mV)
N (%)
0
10
5
20
15
25
30
-0.4 -0.3 -0.2 -0.1
0
0.2
0.3
0.1
0.4
GAIN ERROR HISTOGRAM
MAX9634 toc02
GAIN ERROR (%)
N (%)
SUPPLY CURRENT
vs. TEMPERATURE
MAX9634 toc03
TEMPERATURE (
°C)
SUPPLY CURRENT (
µ
A)
10
-15
35
60
0.4
0.2
0.6
0.8
1.0
1.2
1.4
28V
3.6V
1.8V
0
-40
85