MAX9938T Ver la hoja de datos (PDF) - Maxim Integrated
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MAX9938T Datasheet PDF : 14 Pages
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1µA, 4-Bump UCSP/SOT23,
Precision Current-Sense Amplifier
ELECTRICAL CHARACTERISTICS (continued)
(VRS+ = VRS- = 3.6V, VSENSE = (VRS+ - VRS-) = 0V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
Note 1: All devices are 100% production tested at TA = +25°C. All temperature limits are guaranteed by design.
Note 2: VOUT = 0. ICC is the total current into RS+ plus RS- pins.
Note 3: VOS is extrapolated from measurements for the gain-error test.
Note 4: Gain error is calculated by applying two values of VSENSE and calculating the error of the slope vs. the ideal:
Gain = 25, VSENSE is 20mV and 120mV.
Gain = 50, VSENSE is 10mV and 60mV.
Gain = 100, VSENSE is 5mV and 30mV.
Gain = 200, VSENSE is 2.5mV and 15mV.
Note 5: The device is stable for any external capacitance value.
Note 6: VOH is the voltage from VRS- to VOUT with VSENSE = 3.6V/gain.
Typical Operating Characteristics
(VRS+ = VRS- = 3.6V, TA = +25°C, unless otherwise noted.)
INPUT OFFSET VOLTAGE HISTOGRAM
30
GAIN ERROR HISTOGRAM
30
SUPPLY CURRENT
vs. TEMPERATURE
1.4
25
20
15
10
5
0
-0.4 -0.3 -0.2 -0.1 0 0.1 0.2 0.3 0.4
INPUT OFFSET VOLTAGE (mV)
25
20
15
10
5
0
-0.4 -0.3 -0.2 -0.1 0 0.1 0.2 0.3 0.4
GAIN ERROR (%)
1.2
28V
1.0
0.8
3.6V
0.6
0.4
1.8V
0.2
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
INPUT OFFSET
vs. COMMON-MODE VOLTAGE
-30
-35
-40
-45
-50
-55
0
5 10 15 20 25 30
SUPPLY VOLTAGE (V)
INPUT OFFSET
vs. TEMPERATURE
60
50
40
30
20
10
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
SUPPLY CURRENT
vs. COMMON-MODE VOLTAGE
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0 5 10 15 20 25 30
SUPPLY VOLTAGE (V)
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