LMP8601MA/NOPB National Semiconductor, LMP8601MA/NOPB Datasheet

IC AMP CURRENT SENSE 60V 8SOIC

LMP8601MA/NOPB

Manufacturer Part Number
LMP8601MA/NOPB
Description
IC AMP CURRENT SENSE 60V 8SOIC
Manufacturer
National Semiconductor
Series
LMP®r
Datasheet

Specifications of LMP8601MA/NOPB

Amplifier Type
Current Sense
Number Of Circuits
1
Slew Rate
0.83 V/µs
Gain Bandwidth Product
60kHz
Current - Input Bias
0.04pA
Voltage - Input Offset
150µV
Current - Supply
1.1mA
Current - Output / Channel
48mA
Voltage - Supply, Single/dual (±)
3 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
No. Of Amplifiers
1
Input Bias Current
20nA
Input Offset Voltage
1mV
Bandwidth
60kHz
Cmrr
90dB
Supply Voltage Range
3V To 5.5V
Supply Current
1.1mA
Rohs Compliant
Yes
Number Of Channels
1
Common Mode Rejection Ratio (min)
80 dB
Available Set Gain
26.06 dB
Operating Supply Voltage
5 V
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Supply Voltage (max)
5.5 V
Supply Voltage (min)
3 V
For Use With
LMP8601MAEVAL - BOARD EVALUATION FOR LMP8601MA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Output Type
-
-3db Bandwidth
-
Lead Free Status / Rohs Status
 Details
Other names
*LM8601MA/NOPB
LMP8601MA

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LMP8601MA/NOPB
Manufacturer:
TI
Quantity:
14 500
© 2009 National Semiconductor Corporation
60V Common Mode, Bidirectional Precision Current
Sensing Amplifier
General Description
The LMP8601 and LMP8601Q are fixed 20x gain precision
amplifiers. The part will amplify and filter small differential sig-
nals in the presence of high common mode voltages. The
input common mode voltage range is –22V to +60V when op-
erating from a single 5V supply. With 3.3V supply, the input
common mode voltage range is from –4V to +27V. The
LMP8601 and LMP8601Q are members of the Linear Mono-
lithic Precision (LMP
tional and bidirectional current sensing applications. All
parameter values of the part that are shown in the tables are
100% tested and all bold values are also 100% tested over
temperature.
The part has a precise gain of 20x which is adequate in most
targeted applications to drive an ADC to its full scale value.
The fixed gain is achieved in two separate stages, a pream-
plifier with a gain of 10x and an output stage buffer amplifier
with a gain of 2x. The connection between the two stages of
the signal path is brought out on two pins to enable the pos-
sibility to create an additional filter network around the output
buffer amplifier. These pins can also be used for alternative
configurations with different gain as described in the applica-
tions section .
The mid-rail offset adjustment pin enables the user to use
these devices for bidirectional single supply voltage current
sensing. The output signal is bidirectional and mid-rail refer-
enced when this pin is connected to the positive supply rail.
With the offset pin connected to ground, the output signal is
unidirectional and ground-referenced .
The LMP8601Q incorporates enhanced manufacturing and
support processes for the automotive market, including defect
detection methodologies. Reliability qualification is compliant
with the requirements and temperature grades defined in the
AEC Q100 standard.
Typical Applications
LMP™ is a trademark of National Semiconductor Corporation.
®
) family and are ideal parts for unidirec-
201571
LMP8601/LMP8601Q
Features
Unless otherwise noted, typical values at T
V
Applications
S
= 5.0V, Gain = 20x
TCV
CMRR
Input offset voltage
CMVR at V
CMVR at V
Operating ambient temperature range
LMP8601Q available in Automotive AEC-Q100 Grade 1
qualified version
Single supply bidirectional operation
All Min / Max limits 100% tested
High side and low side driver configuration current sensing
Bidirectional current measurement
Current loop to voltage conversion
Automotive fuel injection control
Transmission control
Power steering
Battery management systems
OS
S
S
= 3.3V
= 5.0V
−40°C to 125°C
www.national.com
July 16, 2009
10μV/°C max
−22V to 60V
A
−4V to 27V
20157101
90 dB min
1 mV max
= 25°C,

Related parts for LMP8601MA/NOPB

LMP8601MA/NOPB Summary of contents

Page 1

... Reliability qualification is compliant with the requirements and temperature grades defined in the AEC Q100 standard. Typical Applications LMP™ trademark of National Semiconductor Corporation. © 2009 National Semiconductor Corporation LMP8601/LMP8601Q Features Unless otherwise noted, typical values ...

Page 2

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. ESD Tolerance (Note 4) Human Body For input pins only For all other pins Machine Model Charge Device Model Supply Voltage (V - GND) S Continuous Input Voltage ((− ...

Page 3

Symbol Parameter Output Buffer (From A2 (pin 4) to OUT( pin Input Offset Voltage OS A2 Gain (Note 14 Input Bias Current of A2 (Note Output Voltage Swing OUT (Note 11, ...

Page 4

Symbol Parameter Output Buffer (From A2 (pin 4) to OUT( pin Input Offset Voltage OS A2 Gain (Note 14 Input Bias Current of A2 (Note Ouput Voltage Swing OUT (Note 11, ...

Page 5

Block Diagram Connection Diagram 8-Pin SOIC 20157102 Top View 5 20157105 www.national.com ...

Page 6

Pin Descriptions Pin Power Supply 2 6 Inputs 1 8 Filter Network 3 4 Offset 7 Output 5 Ordering Information Package Part Number LMP8601MA LMP8601MAX 8-Pin SOIC LMP8601QMA LMP8601QMAX Automotive Grade (Q) product incorporates enhanced manufacturing and support processes for ...

Page 7

Typical Performance Characteristics ≤ ≤ 5V, GND = 0V, −22 V 60V, and vs 3. Input Bias Current Over Temperature (+IN and −IN pins ...

Page 8

Input Referred Voltage Noise vs. Frequency Gain vs. Frequency at V CMRR vs. Frequency at V www.national.com 20157110 = 3.3V S 20157111 = 3.3V CMRR vs. Frequency 20157128 8 PSRR vs. Frequency 20157117 Gain vs. Frequency at ...

Page 9

Step Response 3.3V S 20157118 Settling Time (Falling Edge 3.3V S 20157120 Settling Time (Rising Edge 3.3V S Step Response at V Settling Time (Falling Edge Settling Time (Rising ...

Page 10

Positive Swing vs. R LOAD Positive Swing vs Distribution www.national.com 3.3V S 20157113 LOAD S 20157115 = 3.3V S 20157134 10 Negative Swing vs 3.3V ...

Page 11

TCV Distribution OS 20157136 Gain error Distribution 3.3V S 20157138 CMRR Distribution 3.3V S 20157132 Gain Drift Distribution Gain error Distribution at V CMRR Distribution 20157137 = 5V S 20157139 = ...

Page 12

Application Information GENERAL The LMP8601 and LMP8601Q are fixed gain differential volt- age precision amplifiers with a gain of 20x and a -22V to +60V input common mode voltage range when operating from a single 5V supply or a -4V ...

Page 13

ADDITIONAL SECOND ORDER LOW PASS FILTER The LMP8601/LMP8601Q has a third order Butterworth low- pass characteristic with a typical bandwidth of 60 kHz inte- grated in the preamplifier stage of the part. The bandwidth of the output buffer can be ...

Page 14

GAIN ADJUSTMENT The gain of the LMP8601/LMP8601Q is 20; however, this gain can be adjusted as the signal path in between the two internal amplifiers is available on the external pins. R creates a resistive divider together with the internal ...

Page 15

From this equation, for a desired value of the gain, the re- quired value of R can be calculated with: i BIDIRECTIONAL CURRENT SENSING The signal on the A1 and OUT pins is ground-referenced when the OFFSET pin is connected ...

Page 16

FIGURE 6. Capacitive Load Response at 3.3V FIGURE 7. Capacitive Load Response at 5.0V These figures can be used to estimate the disturbance that will be caused when driving a switched capacitive load. To www.national.com minimize the error signal introduced ...

Page 17

FIGURE 9. Low Side Current Sensing Application HIGH SIDE CURRENT SENSING APPLICATION Figure 10 illustrates the the LMP8601/LMP8601Q in a high side sensing application. This application is similar to the low side sensing discussed above, except in this application the ...

Page 18

BATTERY CURRENT MONITOR APPLICATION This application example shows how the LMP8601/LM- P8601Q can be used to monitor the current flowing in and out a battery pack. The fact that the LMP8601/LMP8601Q can measure small voltages at a high offset voltage ...

Page 19

FIGURE 12. Advanced Battery Charger Application CURRENT LOOP RECEIVER APPLICATION Many industrial applications use transmitters to send a sensor’s analog value to a central control room. The LMP8601/LMP8601Q can be used as a ...

Page 20

Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 8Pin SOIC NS Package Number M08A 20 ...

Page 21

Notes 21 www.national.com ...

Page 22

... For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www ...

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