Product details

Number of channels (#) 2 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.5 Total supply voltage (Min) (+5V=5, +/-5V=10) 1.6 Rail-to-rail In, Out GBW (Typ) (MHz) 0.008 Slew rate (Typ) (V/us) 0.0037 Vos (offset voltage @ 25 C) (Max) (mV) 3 Iq per channel (Typ) (mA) 0.00048 Vn at 1 kHz (Typ) (nV/rtHz) 250 Rating Catalog Operating temperature range (C) -40 to 125 Offset drift (Typ) (uV/C) 1 Features EMI Hardened Input bias current (Max) (pA) 1 CMRR (Typ) (dB) 101 Output current (Typ) (mA) 30 Architecture CMOS
Number of channels (#) 2 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.5 Total supply voltage (Min) (+5V=5, +/-5V=10) 1.6 Rail-to-rail In, Out GBW (Typ) (MHz) 0.008 Slew rate (Typ) (V/us) 0.0037 Vos (offset voltage @ 25 C) (Max) (mV) 3 Iq per channel (Typ) (mA) 0.00048 Vn at 1 kHz (Typ) (nV/rtHz) 250 Rating Catalog Operating temperature range (C) -40 to 125 Offset drift (Typ) (uV/C) 1 Features EMI Hardened Input bias current (Max) (pA) 1 CMRR (Typ) (dB) 101 Output current (Typ) (mA) 30 Architecture CMOS
VSSOP (DGK) 8 15 mm² 3 x 4.9 X1SON (DNX) 8 9 mm² 3 x 3
  • Wide Supply Range: 1.6 V to 5.5 V
  • Low Supply Current: 490 nA (typical/channel)
  • Good Offset Voltage: 3 mV (maximum/room)
  • Good TcVos: 1µV/°C (typical)
  • Gain-Bandwidth: 8 kHz (typical)
  • Rail-to-Rail Input and Output
  • Unity-Gain Stable
  • Low Input Bias Current : 1 pA (typ)
  • EMI Hardened
  • Temperature Range: –40°C to 125°C
  • Thin 3 mm × 3 mm × 0.45 mm X1SON package
  • Wide Supply Range: 1.6 V to 5.5 V
  • Low Supply Current: 490 nA (typical/channel)
  • Good Offset Voltage: 3 mV (maximum/room)
  • Good TcVos: 1µV/°C (typical)
  • Gain-Bandwidth: 8 kHz (typical)
  • Rail-to-Rail Input and Output
  • Unity-Gain Stable
  • Low Input Bias Current : 1 pA (typ)
  • EMI Hardened
  • Temperature Range: –40°C to 125°C
  • Thin 3 mm × 3 mm × 0.45 mm X1SON package

The LPV542 is an ultra-low-power, dual operational amplifier that provides 8kHz of bandwidth from 490nA of quiescent current making it well suited for battery-powered applications such as health and fitness wearables, building automation, and remote sensing nodes.

Each amplifier has a CMOS input stage with pico-amp bias currents which reduces errors commonly introduced in megaohm feedback resistance topologies such as photodiode and charge sense applications. In addition, the input common-mode range extends to the power supply rails and the output swings to within 3 mV of the rails, maintaining the widest dynamic range possible. Likewise, EMI protection is designed into the LPV542 in order to reduce system sensitivity to unwanted RF signals from mobile phones, WiFi, radio transmitters, and tag readers.

The LPV542 operates on a supply voltage as low as 1.6 V, ensuring continuous superior performance in low battery situations. The device is available in an 8-pad, low-profile, leadless 3 mm × 3 mm × 0.45 mm X1SON package and a standard 8 pin VSSOP.

The LPV542 is an ultra-low-power, dual operational amplifier that provides 8kHz of bandwidth from 490nA of quiescent current making it well suited for battery-powered applications such as health and fitness wearables, building automation, and remote sensing nodes.

Each amplifier has a CMOS input stage with pico-amp bias currents which reduces errors commonly introduced in megaohm feedback resistance topologies such as photodiode and charge sense applications. In addition, the input common-mode range extends to the power supply rails and the output swings to within 3 mV of the rails, maintaining the widest dynamic range possible. Likewise, EMI protection is designed into the LPV542 in order to reduce system sensitivity to unwanted RF signals from mobile phones, WiFi, radio transmitters, and tag readers.

The LPV542 operates on a supply voltage as low as 1.6 V, ensuring continuous superior performance in low battery situations. The device is available in an 8-pad, low-profile, leadless 3 mm × 3 mm × 0.45 mm X1SON package and a standard 8 pin VSSOP.

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Technical documentation

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Type Title Date
* Data sheet LPV542 Dual Nanopower 1.8 V, 490nA, RRIO CMOS Operational Amplifier datasheet (Rev. A) 25 Nov 2015
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 Precision Voltage Offset: When Does it Matter? (Rev. A) 02 Nov 2016

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

LPV542 PSpice Model

SNOM489.ZIP (2 KB) - PSpice Model
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LPV542 TINA-TI Spice Model

SNOM490.ZIP (6 KB) - TINA-TI Spice Model
Simulation model

LPV542 TINA-TI Reference Design

SNOM491.TSC (296 KB) - TINA-TI Reference Design
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TINA-TI — SPICE-based analog simulation program

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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 (...)
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VSSOP (DGK) 8 View options
X1SON (DNX) 8 View options

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