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Product details

Parameters

Number of channels (#) 1 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.5 Total supply voltage (Min) (+5V=5, +/-5V=10) 1.7 Rail-to-rail In, Out GBW (Typ) (MHz) 0.006 Slew rate (Typ) (V/us) 0.0029 Vos (offset voltage @ 25 C) (Max) (mV) 3 Iq per channel (Typ) (mA) 0.00035 Vn at 1 kHz (Typ) (nV/rtHz) 300 Rating Catalog Operating temperature range (C) -40 to 125 Offset drift (Typ) (uV/C) 1.5 Features Cost Optimized, EMI Hardened CMRR (Typ) (dB) 100 Output current (Typ) (mA) 12 Architecture CMOS open-in-new Find other General-purpose op amps

Package | Pins | Size

SOT-SC70 (DCK) 5 4 mm² 2 x 2.1 open-in-new Find other General-purpose op amps

Features

  • Unmatched Price Performance
  • For VS = 3.3 V, Typical Unless Otherwise Noted
    • Ultra-low Supply Current
      • 350 nA Typical, 500 nA Maximum
    • Wide Operating Voltage Range 1.7 V to 5.5 V
    • Low TCVOS 1.5 µV/°C
    • VOS 3 mV (Max)
    • Input Bias Current 1 pA
    • PSRR 100 dB
    • CMRR 90 dB
    • Open-Loop Gain 110 dB
    • Gain Bandwidth Product 6 kHz
    • Slew Rate 2.5 V/ms
    • Input Voltage Noise at f = 100 Hz 300 nV/√Hz
    • Temperature Range –40ºC to 125°C
    • Rail to Rail Input and Output (RRIO)
open-in-new Find other General-purpose op amps

Description

The TLV521 350 nA nanopower op amp offers optimum price performance in TI’s nanopower family of operational amplifiers. The TLV521 has a carefully designed CMOS input stage enabling very low Ibias of 1 pA, thereby reducing IBIAS and IOS errors that would otherwise impact sensitive applications like Megaohm resistance, high-impedance photodiode and charge sense situations. Additionally, built-in EMI protection reduces sensitivity to unwanted RF signals from sources like mobile phones and RFID readers.

The TLV521 is offered in the 5-pin SC70 package, and operates from –40°C to 125°C.

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Technical documentation

= Featured
No results found. Please clear your search and try again. View all 6
Type Title Date
* Datasheet TLV521 NanoPower, 350nA, RRIO, CMOS Input, Operational Amplifier datasheet May 20, 2016
Technical articles What is an op amp? Jan. 21, 2020
Technical articles Designing tiny microphone circuits with the industry’s smallest op amp Apr. 12, 2018
Technical articles How to lay out a PCB for high-performance, low-side current-sensing designs Feb. 06, 2018
Technical articles Low-side current sensing for high-performance cost-sensitive applications Jan. 22, 2018
White papers The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description

Texas Instrument offers this blank universal Evaluation Board to help you evaluate the performance of any low voltage, low power operational amplifier that is offered in the SC-70 package. Resistors, capacitors, or any other components can be easily mounted on this board. These components can be (...)

Features
  • Universal for all low voltage, low power op amps.
  • Dual sided layout for different pin-outs.
  • Accommodates components of any of these sizes:
         1206
         0805
         0603
  • Quick and easy evaluation.

 

EVALUATION BOARDS Download
document-generic User guide
$29.00
Description

The TI Precision Amplifier Quickstart Kit simplifies op amp selection, design, and evaluation with samples of six op amps and an evaluation module for prototyping surface-mount ICs. The kit is the perfect starting point for your amplifier designs.

You may also be interested in TI Precision Labs, the (...)

Features

The kit includes:

  • Six samples: Three low-power, low-voltage amplifiers and three low-power, wide-supply amplifiers. See the table below for the complete list.
  • DIP Adapter Evaluation Module (DIP-ADAPTER-EVM) for prototyping surface-mount ICs. The EVM supports the following package types: D or U (...)
EVALUATION BOARDS Download
document-generic User guide
Description

Speed up your op amp prototyping and testing with the DIP-Adapter-EVM, which provides a fast, easy and inexpensive way to interface with small, surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them directly to existing circuits.

The (...)

Features
  • Simplifies prototyping of SMT IC’s
  • Supports 6 common package types
  • Low Cost
EVALUATION BOARDS Download
document-generic User guide
Description
The DIYAMP-EVM is a unique evaluation module (EVM) family that provides engineers and do it yourselfers (DIYers) with real-world amplifier circuits, enabling you to quickly evaluate design concepts and verify simulations. It is available in three industry-standard packages (SC70, SOT23, SOIC) and 12 (...)
Features
  • 3 packages to choose from: SC70-5, SOT23-5 and SOIC-8
  • 12 circuit configurations to choose from: Noninverting, Inverting, Active Filters, Difference Amp, Comparator and more!
  • Dual and single supply configurations
  • PCB designed for High performance: Optimized for each function
  • Multiple interface options (...)
EVALUATION BOARDS Download
document-generic User guide
$149.00
Description

The TPS63802HDKEVM is a universal development tool designed to help the users easily and quickly evaluate and test the most common buck-boost converter use-cases. The use-cases include backup power, input current limit, LED driver, digital voltage scaling, bypass mode and precise enable. The user (...)

Features
  • Universal Tool to test most common buck-boost converter use-cases
  • Use-cases: backup power, input current limit, LED driver, digital voltage scaling, bypass mode and precise enable
  • Change quickly between use-cases without soldering
  • All use-cases are tested and the user guide includes quick-start (...)

Design tools & simulation

SIMULATION MODELS Download
SNOM579.ZIP (4 KB) - PSpice Model
SIMULATION TOOLS Download
SPICE-based analog simulation program
TINA-TI 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 (...)
document-generic User guide
CALCULATION TOOLS Download
Analog engineer's calculator
ANALOG-ENGINEER-CALC — The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
Features
  • Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
    • Noise calculations
    • Common unit translation
  • Solves common amplifier circuit design problems
    • Gain selections using standard resistors
    • Filter configurations
    • Total noise for common amplifier configurations
  • (...)

Reference designs

REFERENCE DESIGNS Download
Supercapacitor backup power supply with current limit and active cell balancing reference design
PMP30693 — This reference design automatically provides a back-up voltage during a power interruption. It manages the charging of supercapitors and provides reverse blocking protection. The maximum supercapacitor charging current and voltage can be adjusted. When the input voltage fails a buck-boost converter (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Reinforced Isolated Phase Current Sense Reference Design with Small Delta Sigma Modulators
TIDA-00914 — This reference design realizes a reinforced isolated 3-phase inverter sub-system using isolated IGBT gate drivers and isolated current/voltage sensors. Precise in-line shunt based motor phase current sensing is done with AMC1306E25 delta sigma modulators. The modulator output is Manchester-encoded (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Basic Isolated Three-Phase Compact Power Stage Reference Design for Industrial Drives
TIDA-01420 — This three-phase, compact power stage reference design for industrial drives, which uses a UCC53xx gate driver to support basic capacitive isolation requirements, provides an increased lifespan and better propagation delay match over optocouplers to minimize inverter deadband distortions and losses (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SC70 (DCK) 5 View options

Ordering & quality

Support & training

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