Product details

Number of channels (#) 2 Total supply voltage (Max) (+5V=5, +/-5V=10) 24 Total supply voltage (Min) (+5V=5, +/-5V=10) 1.8 Rail-to-rail In, Out GBW (Typ) (MHz) 17 Slew rate (Typ) (V/us) 25 Vos (offset voltage @ 25 C) (Max) (mV) 1 Iq per channel (Typ) (mA) 0.65 Vn at 1 kHz (Typ) (nV/rtHz) 16 Rating Catalog Operating temperature range (C) -40 to 85 Offset drift (Typ) (uV/C) 3 Features Input bias current (Max) (pA) 280000 CMRR (Typ) (dB) 107 Output current (Typ) (mA) 8 Architecture Bipolar
Number of channels (#) 2 Total supply voltage (Max) (+5V=5, +/-5V=10) 24 Total supply voltage (Min) (+5V=5, +/-5V=10) 1.8 Rail-to-rail In, Out GBW (Typ) (MHz) 17 Slew rate (Typ) (V/us) 25 Vos (offset voltage @ 25 C) (Max) (mV) 1 Iq per channel (Typ) (mA) 0.65 Vn at 1 kHz (Typ) (nV/rtHz) 16 Rating Catalog Operating temperature range (C) -40 to 85 Offset drift (Typ) (uV/C) 3 Features Input bias current (Max) (pA) 280000 CMRR (Typ) (dB) 107 Output current (Typ) (mA) 8 Architecture Bipolar
PDIP (P) 8 93 mm² 9.81 x 9.43 SOIC (D) 8 19 mm² 4.9 x 3.9

    At VS = 5V. Typ Unless Noted.

  • Rail-to-rail Input CMVR −0.25V to 5.25V
  • Rail-to-Rail Output Swing 0.005V to 4.995V
  • Wide Gain-Bandwidth: 17MHz at 50kHz (typ)
  • Slew Rate:
    •  Small Signal, 5V/μs
    •  Large Signal, 30V/μs
  • Low Supply Current 650μA/Amplifier
  • Wide Supply Range 1.8V to 24V
  • CMRR 107dB
  • Gain 108dB with RL = 10k
  • PSRR 87dB

All trademarks are the property of their respective owners.

    At VS = 5V. Typ Unless Noted.

  • Rail-to-rail Input CMVR −0.25V to 5.25V
  • Rail-to-Rail Output Swing 0.005V to 4.995V
  • Wide Gain-Bandwidth: 17MHz at 50kHz (typ)
  • Slew Rate:
    •  Small Signal, 5V/μs
    •  Large Signal, 30V/μs
  • Low Supply Current 650μA/Amplifier
  • Wide Supply Range 1.8V to 24V
  • CMRR 107dB
  • Gain 108dB with RL = 10k
  • PSRR 87dB

All trademarks are the property of their respective owners.

Using patent pending new circuit topologies, the LM6142/LM6144 provides new levels of performance in applications where low voltage supplies or power limitations previously made compromise necessary. Operating on supplies of 1.8V to over 24V, the LM6142/LM6144 is an excellent choice for battery operated systems, portable instrumentation and others.

The greater than rail-to-rail input voltage range eliminates concern over exceeding the common-mode voltage range. The rail-to-rail output swing provides the maximum possible dynamic range at the output. This is particularly important when operating on low supply voltages.

High gain-bandwidth with 650μA/Amplifier supply current opens new battery powered applications where previous higher power consumption reduced battery life to unacceptable levels. The ability to drive large capacitive loads without oscillating functionally removes this common problem.

Using patent pending new circuit topologies, the LM6142/LM6144 provides new levels of performance in applications where low voltage supplies or power limitations previously made compromise necessary. Operating on supplies of 1.8V to over 24V, the LM6142/LM6144 is an excellent choice for battery operated systems, portable instrumentation and others.

The greater than rail-to-rail input voltage range eliminates concern over exceeding the common-mode voltage range. The rail-to-rail output swing provides the maximum possible dynamic range at the output. This is particularly important when operating on low supply voltages.

High gain-bandwidth with 650μA/Amplifier supply current opens new battery powered applications where previous higher power consumption reduced battery life to unacceptable levels. The ability to drive large capacitive loads without oscillating functionally removes this common problem.

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Technical documentation

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Type Title Date
* Data sheet LM6142/LM6144 17 MHz Rail-to-Rail Input-Output Operational Amplifiers datasheet (Rev. D) 13 Mar 2013
Technical article What is an op amp? 21 Jan 2020
Technical article How to lay out a PCB for high-performance, low-side current-sensing designs 06 Feb 2018
Technical article Low-side current sensing for high-performance cost-sensitive applications 22 Jan 2018
Technical article Voltage and current sensing in HEV/EV applications 22 Nov 2017
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
Application note AN-1515 A Comprehensive Study of the Howland Current Pump (Rev. A) 26 Apr 2013
Application note Effect of Heavy Loads on Accuracy and Linearity of Op Amp Circuits (Rev. B) 22 Apr 2013

Design & development

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

Evaluation board

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Simulation model

LM6142 PSPICE Model

SNOM224.ZIP (3 KB) - PSpice Model
Simulation tool

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

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Calculation tool

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Design tool

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This design inverts the input signal, VIN, and applies a signal gain of 1000 V/V or 60 dB. The inverting amplifier with T-feedback network can be used to obtain a high gain without a small value for R4 or very large values for the feedback resistors.
Design tool

CIRCUIT060015 — Adjustable reference voltage circuit

This circuit combines an inverting and non-inverting amplifier to make a reference voltage adjustable from the negative of the input voltage up to the input voltage. Gain can be added to increase the maximum negative reference level.
Design tool

CIRCUIT060074 — High-side current sensing with comparator circuit

This high-side, current sensing solution uses one comparator with a rail-to-rail input common mode range to create an over-current alert (OC-Alert) signal at the comparator output (COMP OUT) if the load current rises above 1 A. The OC-Alert signal in this implementation is active low. So when the (...)
Reference designs

TIDA-01040 — Battery Tester Reference Design for High Current Applications

Li-Ion battery formation and electrical testing require accurate voltage and current control, usually to better than ±0.05% over the specified temperature range.  This reference design proposes a solution for high-current (up to 50 A) battery tester applications supporting input (bus) (...)
Reference designs

TIDA-01041 — Battery tester reference design for multi-phase high-precision 0.5 to 100 A battery formation

This reference design provides a multi-phase solution for a wide range of current battery test applications. Leveraging the dual phase buck/boost controller LM5170's daisy chain configuration gives the design the ability to achieve 100A charging/discharging rates. Utilizing high accuracy constant (...)
Reference designs

TIDA-01042 — Modular battery tester reference design for 50-A, 100-A, and 200-A applications

This reference design provides a modular battery test solution allowing users to have the flexibility to test batteries at different current levels with one design. This design leverages the TIDA-01041 reference design by providing two 100-A battery testers that can work independently or be (...)
Reference designs

PMP15035 — 1000-W, Bidirectional, 12-V to 12-V Converter Reference Design

This reference design is a dual-channel, bidirectional converter suitable for 12-V to 12-V, dual-battery system, automotive applications. This reference design has a wide input range (3 V to 40 V) and could give full load (1kW) in the input voltage from 9V to 18V by using two LM5170-Q1 (...)
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