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LMP8603 Datasheet(PDF) 3 Page - Texas Instruments

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Part # LMP8603
Description  60V Common Mode, Fixed Gain, Bidirectional Precision Current Sensing Amplifier
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LMP8603 Datasheet(HTML) 3 Page - Texas Instruments

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LMP8602, LMP8602Q, LMP8603, LMP8603Q
www.ti.com
SNOSB36D – JULY 2009 – REVISED MARCH 2013
Operating Ratings
(1)
Supply Voltage (VS – GND)
3.0V to 5.5V
Offset Voltage (Pin 7 )
0 to VS
Temperature Range(2)
Packaged devices
−40°C to +125°C
Package Thermal Resistance(2)
8-Pin SOIC (
θJA)
190°C/W
8-Pin VSSOP (
θJA)
203°C/W
(1)
“Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur, including inoperability and degradation of
the device reliability and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or
other conditions beyond those indicated in the Recommended Operating Conditions is not implied. The Recommended Operating
Conditions indicate conditions at which the device is functional and the device should not be beyond such conditions. All voltages are
measured with respect to the ground pin, unless otherwise specified.
(2)
The maximum power dissipation must be derated at elevated temperatures and is dictated by TJ(MAX), θJA, and the ambient temperature,
TA. The maximum allowable power dissipation PDMAX = (TJ(MAX) - TA) / θJA or the number given in Absolute Maximum Ratings,
whichever is lower.
3.3V Electrical Characteristics
(1)
Unless otherwise specified, all limits ensured at TA = 25°C, VS = 3.3V, GND = 0V, −4V ≤ VCM ≤ 27V, and RL = ∞, Offset (Pin
7) is grounded, 10nF between VS and GND. Boldface limits apply at the temperature extremes.
Min
Typ
Max
Symbol
Parameter
Conditions
Units
(2)
(3)
(2)
Overall Performance (From -IN (pin 1) and +IN (pin 8) to OUT (pin 5) with pins A1 (pin 3) and A2 (pin 4) connected)
IS
Supply Current
1
1.3
mA
LMP8602
49.75
50
50.25
AV
Total Gain
V/V
LMP8603
99.5
100
100.5
Gain Drift(4)
−40°C ≤ TA ≤ 125°C
−2.7
±20
ppm/°C
SR
Slew Rate(5)
VIN = ±0.165V
0.4
0.7
V/
μs
BW
Bandwidth
50
60
kHz
VOS
Input Offset Voltage
VCM = VS / 2
0.15
±1
mV
TCVOS
Input Offset Voltage Drift(6)
−40°C ≤ TA ≤ 125°C
2
±10
μV/°C
0.1 Hz
− 10 Hz, 6 Sigma
16.4
μVP-P
en
Input Referred Voltage Noise
Spectral Density, 1 kHz
830
nV/
√Hz
PSRR
Power Supply Rejection Ratio
DC, 3.0V
≤ VS ≤ 3.6V, VCM = VS/2
70
86
dB
LMP8602
±0.25
±1
%
Input Referred
±0.33
mV
Mid
−scale Offset Scaling Accuracy
LMP8603
±0.45
±1.5
%
Input Referred
±0.248
mV
Preamplifier (From input pins -IN (pin 1) and +IN (pin 8) to A1 (pin 3))
RCM
Input Impedance Common Mode
−4V ≤ VCM ≤ 27V
250
295
350
k
RDM
Input Impedance Differential Mode
−4V ≤ VCM ≤ 27V
500
590
700
k
VOS
Input Offset Voltage
VCM = VS / 2
±0.15
±1
mV
DC CMRR DC Common Mode Rejection Ratio
−2V ≤ VCM ≤ 24V
86
96
dB
AC Common Mode Rejection Ratio(7)
f = 1 kHz
80
94
AC CMRR
dB
f = 10 kHz
85
CMVR
Input Common Mode Voltage Range
for 80 dB CMRR
−4
27
V
(1)
The electrical Characteristics tables list ensured specifications under the listed Recommended Operating Conditions except as otherwise
modified or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and are not
ensured.
(2)
Datasheet min/max specification limits are ensured by test.
(3)
Typical values represent the most likely parameter norms at TA = +25°C, and at the Recommended Operation Conditions at the time of
product characterization and are not ensured.
(4)
Both the gain of the preamplifier A1V and the gain of the buffer amplifier A2V are measured individually. The over all gain of both
amplifiers AV is also measured to assure the gain of all parts is always within the AV limits.
(5)
Slew rate is the average of the rising and falling slew rates.
(6)
Offset voltage drift determined by dividing the change in VOS at temperature extremes into the total temperature change.
(7)
AC Common Mode Signal is a 5VPP sine-wave (0V to 5V) at the given frequency.
Copyright © 2009–2013, Texas Instruments Incorporated
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