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LMP8603Q Datasheet(PDF) 4 Page - Texas Instruments

Part # LMP8603Q
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
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LMP8603Q Datasheet(HTML) 4 Page - Texas Instruments

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LMP8602, LMP8602Q, LMP8603, LMP8603Q
SNOSB36D – JULY 2009 – REVISED MARCH 2013
www.ti.com
3.3V Electrical Characteristics
(1) (continued)
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)
K1
Gain(4)
9.95
10.0
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 Output Voltage Swing
VOH
3.2
3.25
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(4)
V/V
LMP8603
9.95
10
10.05
−40
fA
IB
Input Bias Current of A2(8)
±20
n A
VOL,
LMP8602
10
40
mV
RL = 100 kΩ
LMP8603
10
80
A2 VOUT
A2 Output Voltage Swing(9)(10)
VOH,
3.28
3.29
V
RL = 100 kΩ
Sourcing, VIN = VS, VOUT = GND
-25
-38
-60
ISC
Output Short-Circuit Current(11)
mA
Sinking, VIN = GND, VOUT = VS
30
46
65
(8)
Positive current corresponds to current flowing into the device.
(9)
For this test input is driven from A1 stage in uni-directional mode (Offset pin connected to GND).
(10) For VOL, RL is connected to VS and for VOH, RL is connected to GND.
(11) 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.
5V Electrical Characteristics
(1)
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)
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
1.5
mA
LMP8602
49.75
50
50.25
AV
Total Gain(4)
V/V
LMP8603
99.5
100
100.5
Gain Drift
−40°C ≤ TA ≤ 125°C
−2.8
±20
ppm/°C
SR
Slew Rate(5)
VIN = ±0.25V
0.6
0.83
V/
μs
BW
Bandwidth
50
60
kHz
VOS
Input Offset Voltage
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
17.5
μVP-P
eN
Input Referred Voltage Noise
Spectral Density, 1 kHz
890
nV/
√Hz
(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.
4
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