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Product details

Parameters

Number of channels (#) 4 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.5 Total supply voltage (Min) (+5V=5, +/-5V=10) 1.8 Rail-to-rail In, Out GBW (Typ) (MHz) 3 Slew rate (Typ) (V/us) 1.5 Vos (offset voltage @ 25 C) (Max) (mV) 2.5 Iq per channel (Typ) (mA) 0.13 Vn at 1 kHz (Typ) (nV/rtHz) 14 Rating Automotive Operating temperature range (C) -40 to 125 Offset drift (Typ) (uV/C) 1 Features EMI Hardened Input bias current (Max) (pA) 10 CMRR (Typ) (dB) 96 Output current (Typ) (mA) 20 Architecture CMOS open-in-new Find other General-purpose op amps

Package | Pins | Size

TSSOP (PW) 14 32 mm² 5 x 6.4 open-in-new Find other General-purpose op amps

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade : –40°C to +125°C Ambient Operating Temperature Range
    • Device HBM Classification Level 2
    • Device CDM Classification Level C6
  • Low IQ: 150 µA/ch
  • Wide Supply Range: 1.8 V to 5.5 V
  • Low Noise: 14 nV/√Hz at 1 kHz
  • Gain Bandwidth: 3 MHz
  • Low Input Bias Current: 0.2 pA
  • Low Offset Voltage: 0.5 mV
  • Unity-Gain Stable
  • Internal RF/EMI Filter
  • Specified Temperature Range: –40°C to +125°C
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Description

The OPAx314-Q1 series is a family of single-, and dual-, and quad-channel operational amplifiers (op-amps) that represents a new generation of low-power, general-purpose CMOS amplifiers. Rail-to-rail input and output swings, low quiescent current (150 µA typically at 5 VS) combined with a wide bandwidth of 3 MHz, and very low noise (14 nV/√Hz at 1 kHz) make this device family very attractive for a variety of battery-powered applications that require a good balance between cost and performance. The low input bias current supports applications with mega-ohm source impedances.

The robust design of the OPAx314-Q1 series provides ease-of-use to the circuit designer: unity-gain stability with capacitive loads of up to 300 pF, an integrated RF/EMI rejection filter, no phase reversal in overdrive conditions, and high electrostatic discharge (ESD) protection (4-kV HBM).

The device is optimized for low-voltage operation as low as 1.8 V (±0.9 V) and up to 5.5 V (±2.75 V), and is specified over the full extended temperature range of –40°C to +125°C.

The single-channel device, OPA314-Q1, is offered in the SOT-23 package and the dual-channel device, OPA2314-Q1, is offered in the VSSOP (8) package. The quad-channel OPA4314-Q1 is available in the 14-pin TSSOP package.

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Technical documentation

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Type Title Date
* Data sheet OPAx314-Q1 3-MHz, Low-Power, Low-Noise, RRIO, 1.8-V CMOS Operational Amplifier datasheet (Rev. B) Jan. 13, 2017
Technical article What is an op amp? Jan. 21, 2020
Technical article How to lay out a PCB for high-performance, low-side current-sensing designs Feb. 06, 2018
Technical article Low-side current sensing for high-performance cost-sensitive applications Jan. 22, 2018
Technical article Voltage and current sensing in HEV/EV applications Nov. 22, 2017
E-book 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.

Design tools & simulation

SIMULATION MODEL Download
SBOM759.ZIP (7 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SBOM760.TSC (269 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SBOMBU2.ZIP (29 KB) - PSpice Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOL 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 TOOL 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
  • (...)
DESIGN TOOL Download
Inverting amplifier with T-network feedback circuit
CIRCUIT060013 — 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.
Features
  • Dual +/- 5-V supply
  • Input: +/- 2.5 mV
  • Output: +/- 2.5 V
  • Bandwidth: 5 kHz
  • Gain: 1000 V/V
DESIGN TOOL Download
Adjustable reference voltage circuit
CIRCUIT060015 — 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.
Features
  • Dual +/- 15-V supply
  • Input: 10 V
  • Output: 0 V to 10 V

CAD/CAE symbols

Package Pins Download
TSSOP (PW) 14 View options

Ordering & quality

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  • Ongoing reliability monitoring

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