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Current sense amplifiers analog output

LMP8603-Q1

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AEC-Q100, -22 to 60V, bi-directional current sense amplifier w/ in-line filter capability

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Data sheet

LMP8603-Q1

ACTIVE
Data sheet Order now

Product details

Common mode voltage (Max) (V) 60 Common mode voltage (Min) (V) -22 Input offset (+/-) (Max) (uV) 2000 Input offset drift (+/-) (Typ) (uV/C) 2 Gain (V/V) 100 Gain error (%) 0.5 Gain error drift (+/-) (Max) (ppm/°C) 20 CMRR (Min) (dB) 90 Bandwidth (kHz) 60 Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 3 Iq (Max) (mA) 1.5 Number of channels (#) 1 Comparators (#) 0 Features Bi-directional, Low-side Capable Rating Automotive Operating temperature range (C) -40 to 125
Common mode voltage (Max) (V) 60 Common mode voltage (Min) (V) -22 Input offset (+/-) (Max) (uV) 2000 Input offset drift (+/-) (Typ) (uV/C) 2 Gain (V/V) 100 Gain error (%) 0.5 Gain error drift (+/-) (Max) (ppm/°C) 20 CMRR (Min) (dB) 90 Bandwidth (kHz) 60 Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 3 Iq (Max) (mA) 1.5 Number of channels (#) 1 Comparators (#) 0 Features Bi-directional, Low-side Capable Rating Automotive Operating temperature range (C) -40 to 125
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SOIC (D) 8 19 mm² 4.9 x 3.9 VSSOP (DGK) 8 15 mm² 3 x 4.9
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  • Gain = 20x for LMP8601 and LMP8601-Q1
  • Gain = 50x for LMP8602 and LMP8602-Q1
  • Gain = 100x for LMP8603 and LMP8603-Q1
  • TCVOS: 10 µV/°C Maximum
  • CMRR: 90-dB Minimum
  • Input Offset Voltage: 1-mV Maximum
  • CMVR at VS = 3.3 V: –4 V to 27 V
  • CMVR at VS = 5 V: –22 V to 60 V
  • Single-Supply Bidirectional Operation
  • All Minimum and Maximum Limits 100% Tested
  • Q1 Devices Qualified for Automotive Applications
  • Q1 Devices ACE-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device Temperature Grade 0: –40°C to 150°C (LMP8601EDRQ1 Only)
    • Device HBM ESD Classification Level 2
      (3A on inputs)
    • Device CDM ESD Classification Level C6
    • Device MM ESD Classification Level M2
  • Gain = 20x for LMP8601 and LMP8601-Q1
  • Gain = 50x for LMP8602 and LMP8602-Q1
  • Gain = 100x for LMP8603 and LMP8603-Q1
  • TCVOS: 10 µV/°C Maximum
  • CMRR: 90-dB Minimum
  • Input Offset Voltage: 1-mV Maximum
  • CMVR at VS = 3.3 V: –4 V to 27 V
  • CMVR at VS = 5 V: –22 V to 60 V
  • Single-Supply Bidirectional Operation
  • All Minimum and Maximum Limits 100% Tested
  • Q1 Devices Qualified for Automotive Applications
  • Q1 Devices ACE-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device Temperature Grade 0: –40°C to 150°C (LMP8601EDRQ1 Only)
    • Device HBM ESD Classification Level 2
      (3A on inputs)
    • Device CDM ESD Classification Level C6
    • Device MM ESD Classification Level M2
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The LMP8601, LMP8602, LMP8603 (LMP860x) and LMP8601-Q1, LMP8602-Q1, LMP8603-Q1 (LMP860x-Q1) devices are fixed-gain, precision current-sense amplifiers (also referred to as current-shunt monitors). The input common-mode voltage range is –22 V to +60 V when operating from a single 5-V supply, or –4 V to +27 V with a 3.3-V supply. The LMP860x and LMP860x-Q1 are ideal parts for unidirectional and bidirectional current sensing applications.

These devices have a precise gain of 20x (LPM8601, LPM8601-Q1), 50x (LPM8602, LPM8602-Q1), and 100x (LPM8603, LPM8603-Q1), and are adequate in most targeted applications to drive an ADC to full-scale value. The fixed gain is achieved in two separate stages: a preamplifier with a gain of 10x and an output stage buffer amplifier with a gain of 2x (LMP8601, LMP8601-Q1), 5x (LMP8602, LMP8602-Q1), or 10x (LMP8603, LMP8603-Q1). The path between the two stages is brought out on two pins to enable the option of an additional filter network or modifying the gain.

The offset input pin enables these devices for unidirectional or bidirectional single supply voltage current sensing.

The LMP860x-Q1 devices incorporate enhanced manufacturing and support processes for the automotive market and are compliant with the AEC-Q100 standard.

The LMP8601, LMP8602, LMP8603 (LMP860x) and LMP8601-Q1, LMP8602-Q1, LMP8603-Q1 (LMP860x-Q1) devices are fixed-gain, precision current-sense amplifiers (also referred to as current-shunt monitors). The input common-mode voltage range is –22 V to +60 V when operating from a single 5-V supply, or –4 V to +27 V with a 3.3-V supply. The LMP860x and LMP860x-Q1 are ideal parts for unidirectional and bidirectional current sensing applications.

These devices have a precise gain of 20x (LPM8601, LPM8601-Q1), 50x (LPM8602, LPM8602-Q1), and 100x (LPM8603, LPM8603-Q1), and are adequate in most targeted applications to drive an ADC to full-scale value. The fixed gain is achieved in two separate stages: a preamplifier with a gain of 10x and an output stage buffer amplifier with a gain of 2x (LMP8601, LMP8601-Q1), 5x (LMP8602, LMP8602-Q1), or 10x (LMP8603, LMP8603-Q1). The path between the two stages is brought out on two pins to enable the option of an additional filter network or modifying the gain.

The offset input pin enables these devices for unidirectional or bidirectional single supply voltage current sensing.

The LMP860x-Q1 devices incorporate enhanced manufacturing and support processes for the automotive market and are compliant with the AEC-Q100 standard.

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Technical documentation

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Type Title Date
* Data sheet LMP860x, LMP860x-Q1 60-V, Bidirectional, Low- or High-Side, Voltage-Output, Current-Sensing Amplifiers datasheet (Rev. H) 27 Apr 2016
Application note Low-Drift, Precision, In-Line Motor Current Measurements With PWM Rejection (Rev. C) 28 Sep 2021
Technical article Solving the multidecade current-measurement challenge in your 48-V BMS application 14 Jun 2021
Technical article How current-sense amplifiers monitor satellite health 08 Feb 2021
Application note Current Measurements in Power Supplies (Rev. B) 29 Dec 2020
Technical article A key to accurate system thermal management: monitoring both current flow and temperature 04 Oct 2018
Application note Benefits of Intergated Low Inductive Shunt for PWM Applications 17 Jun 2017
Technical article System trade-offs for high- and low-side current measurements 01 Jun 2017
Application note Precision LED Brightness and Color Mixing With Discrete Current Sense Amplifiers 28 Feb 2017
User guide AN-1923 Current Sense Demo Board (SOIC) User's Guide (Rev. A) 26 Apr 2013
User guide AN-1958 LMP860X SOIC Eval Board User's Guide (Rev. C) 26 Apr 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Simulation model

LMP8603 PSPICE Model (Rev. A)

SNOM086A.ZIP (18 KB) - PSpice Model
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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Calculation tool

Current Sense Amplifier Comparison and Error Tool (Rev. D)

SBOR020D.ZIP (582 KB)
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Design tool

CIRCUIT060035 — Bidirectional current sensing with a window comparator circuit

This bidirectional current sensing solution uses a current-sense amplifier and a high-speed dual comparator with a rail-to-rail input common mode range to create over-current (OC) alert signals at the comparator outputs (OUTA and OUTB) if the input current (IG1) rises above 100 A or falls below (...)
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Design tool

CIRCUIT060037 — Precision over-current latch circuit

This high-side, current sensing solution uses a current sense amplifier, a comparator with an integrated reference and a P-channel MOSFET to create an over-current latch circuit. When a load current greater than 200 mA is detected, the circuit disconnects the system from its power source. The (...)
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Reference designs

TIDA-00302 — Current Shunt Monitor with Transient Robustness Reference Design

This high-side current shunt monitor is used to measure the voltage developed across a current-sensing resistor when current passes through it.

Additionally, an external protection circuit is implemented to provide surge and fast-transient protection and demonstrate the different immunity levels to (...)

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Package Pins Download
SOIC (D) 8 View options
VSSOP (DGK) 8 View options

Ordering & quality

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