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LMP8603QMMX Datasheet(PDF) 5 Page - Texas Instruments

Part # LMP8603QMMX
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

LMP8603QMMX Datasheet(HTML) 5 Page - Texas Instruments

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LMP8602, LMP8602Q, LMP8603, LMP8603Q
www.ti.com
SNOSB36D – JULY 2009 – REVISED MARCH 2013
5V Electrical Characteristics
(1) (continued)
Unless otherwise specified, all limits ensured for at TA = 25°C, VS = 5V, GND = 0V, −22V ≤ VCM ≤ 60V, 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)
PSRR
Power Supply Rejection Ratio
DC 4.5V
≤ VS ≤ 5.5V
70
90
dB
LMP8602
±0.25
±1
%
Input Referred
±0.50
mV
Mid
−scale Offset Scaling Accuracy
LMP8603
±0.45
±1.5
%
Input Referred
±0.375
mV
Preamplifier (From input pins -IN (pin 1) and +IN (pin 8) to A1 (pin 3))
0V
≤ VCM ≤ 60V
250
295
350
k
RCM
Input Impedance Common Mode
−20V ≤ VCM< 0V
165
193
250
k
0V
≤ VCM ≤ 60V
500
590
700
k
RDM
Input Impedance Differential Mode
−20V ≤ VCM < 0V
300
386
500
k
VOS
Input Offset Voltage
VCM = VS / 2
±0.15
±1
mV
DC CMRR DC Common Mode Rejection Ratio
−20V ≤ VCM ≤ 60V
90
105
dB
f = 1 kHz
80
96
AC CMRR AC Common Mode Rejection Ratio(7)
dB
f = 10 kHz
83
CMVR
Input Common Mode Voltage Range
for 80 dB CMRR
−22
60
V
K1
Gain(4)
9.95
10
10.05
V/V
RF-INT
Output Impedance Filter Resistor
99
100
101
k
TCRF-INT
Output Impedance Filter Resistor Drift
±5
±50
ppm/°C
VOL
RL = ∞
2
10
mV
A1 VOUT
A1 Ouput Voltage Swing
VOH
4.95
4.985
V
Output Buffer (From A2 (pin 4) to OUT ( pin 5 )
−2
2
VOS
Input Offset Voltage
0V
≤ VCM ≤ VS
±0.5
mV
−2.5
2.5
LMP8602
4.975
5
5.025
K2
Gain(8)
V/V
LMP8603
9.95
10
10.05
−40
fA
IB
Input Bias Current of A2(9)
±20
nA
VOL,
LMP8602
10
40
mV
RL = 100 kΩ
LMP8603
10
80
A2 VOUT
A2 Ouput Voltage Swing(10) (11)
VOH,
4.98
4.99
V
RL = 100 kΩ
Sourcing, VIN = VS, VOUT = GND
–25
–42
–60
ISC
Output Short-Circuit Current(12)
mA
Sinking, VIN = GND, VOUT = VS
30
48
65
(7)
AC Common Mode Signal is a 5VPP sine-wave (0V to 5V) at the given frequency.
(8)
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.
(9)
Positive current corresponds to current flowing into the device.
(10) For this test input is driven from A1 stage in uni-directional mode (Offset pin connected to GND).
(11) For VOL, RL is connected to VS and for VOH, RL is connected to GND.
(12) Short-Circuit test is a momentary test. Continuous short circuit operation at elevated ambient temperature can result in exceeding the
maximum allowed junction temperature of 150°C.
Copyright © 2009–2013, Texas Instruments Incorporated
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Product Folder Links: LMP8602 LMP8602Q LMP8603 LMP8603Q


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