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Product details

Parameters

Architecture FET / CMOS Input, Voltage FB Number of channels (#) 2 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.2 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.5 GBW (Typ) (MHz) 50 BW @ Acl (MHz) 50 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 25 Vn at flatband (Typ) (nV/rtHz) 4.5 Vn at 1 kHz (Typ) (nV/rtHz) 4.5 Iq per channel (Typ) (mA) 4.6 Vos (offset voltage @ 25 C) (Max) (mV) 0.2 Rail-to-rail In, Out Features Zero Crossover Rating Catalog Operating temperature range (C) -40 to 125 CMRR (Typ) (dB) 120 Input bias current (Max) (pA) 10 Offset drift (Typ) (uV/C) 1 Output current (Typ) (mA) 65 open-in-new Find other High-speed op amps (GBW>=50MHz)

Package | Pins | Size

SOIC (D) 8 19 mm² 3.91 x 4.9 open-in-new Find other High-speed op amps (GBW>=50MHz)

Features

  • Gain Bandwidth: 50 MHz
  • Zerø-Crossover Distortion Topology:
    • Excellent THD+N: 0.0004%
    • CMRR: 100 dB (Minimum)
    • Rail-to-Rail Input and Output
      • Input 100 mV Beyond Supply Rail
  • Low Noise: 4.5 nV/√Hz at 100 kHz
  • Slew Rate: 25 V/µs
  • Fast Settling: 0.3 µs to 0.01%
  • Precision:
    • Low Offset: 100 µV
    • Low Input Bias Current: 0.2 pA
  • 2.2-V to 5.5-V Operation

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open-in-new Find other High-speed op amps (GBW>=50MHz)

Description

The OPAx365 zerø-crossover series, rail-to-rail, high-performance, CMOS operational amplifiers are optimized for very low voltage, single-supply applications. Rail-to-rail input or output, low-noise (4.5 nV/√Hz) and high-speed operation (50-MHz Gain Bandwidth) make these devices ideal for driving sampling analog-to-digital converters (ADCs). Applications include audio, signal conditioning, and sensor amplification. The OPA365 family of op amps are also well-suited for cell phone power amplifier control loops.

Special features include an excellent common-mode rejection ratio (CMRR), no input stage crossover distortion, high input impedance, and rail-to-rail input and output swing. The input common-mode range includes both the negative and positive supplies. The output voltage swing is within 10 mV of the rails.

The OPA365 (single version) is available in the micro-size SOT23-5 (SOT-5) and SOIC-8 packages. The OPA2365 (dual version) is offered in the SOIC-8 package. All versions are specified for operation from −40°C to +125°C. Single and dual versions have identical specifications for maximum design flexibility.

open-in-new Find other High-speed op amps (GBW>=50MHz)
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Technical documentation

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
49
Description
The PositionManager BoosterPack is a flexible low voltage platform intended for evaluating interfaces to absolute encoders and analog sensors like resolvers and SinCos transducers.  When combined with the DesignDRIVE Position Manager software solutions this low-cost evaluation module becomes a (...)
Features

Hardware Features

  • 2x channels of RS-485 line interface supporting up to 100m distances
  • 1x SinCos analog interface
  • 2x 20-pin headers/connectors to LaunchPad
  • Capable of supporting 2x absolute encoders simultaneously
  • Works with CLB-enabled C2000 MCUs
  • Hardware Files are in controlSUITE at (...)

Design tools & simulation

SIMULATION MODELS Download
SBOC133.ZIP (3 KB) - PSpice Model
SIMULATION MODELS Download
SBOC134A.TSC (66 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SBOM203.TSM (5 KB) - TINA-TI Spice Model
SIMULATION TOOLS 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 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
  • (...)
CALCULATION TOOLS Download
Voltage Divider Determines A Set of Resistors for a Voltage Divider
VOLT-DIVIDER-CALC VOLT-DIVIDER-CALC quickly determines a set of resistors for a voltage divider. This KnowledgeBase Javascript utility can be used to find a set of resistors for a voltage divider to achieve the desired output voltage. This calculator can also be used to design non-inverting attentuation circuits.

(...)

DESIGN TOOLS Download
PWM generator circuit
CIRCUIT060010 — This circuit utilizes a triangle wave generator and comparator to generate a 500 kHz pulse-width modulated (PWM) waveform with a duty cycle that is inversely proportional to the input voltage. An op amp and comparator generate a triangle waveform which is applied to the inverting input of a second (...)
document-generic User guide
Features
  • 5V Single supply with half-supply reference 
  • Input: -2V to 2V 
  • Output: 0V to 5V
DESIGN TOOLS Download
SBOC502.ZIP (18 KB)

Reference designs

REFERENCE DESIGNS Download
Interface to a HIPERFACE Position Encoder Reference Design
TIDA-00202 The TIDA-00202 reference design implements an EMC compliant industrial hybrid analog and digital interface to a HIPERFACE position encoder. A 3.3V supply RS485 transceiver with IEC-ESD and IEC-EFT protection is used for the bidirectional parameter channel. For the analog sin/cos signal channel (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Interface to Sin/Cos Encoders with High-Resolution Position Interpolation Reference Design
TIDA-00176 The TIDA-00176 reference design is an EMC compliant industrial interface to Sin/Cos position encoders. Applications include industrial drives, which require accurate speed and position control.
The design utilizes a 16-bit dual sample ADC with drop-in compatible 14- or 12-bit versions available (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Analog PWM Generator 5V, 500kHz PWM Output
TIPD108 This Verified Design utilizes a triangle wave generator and comparator to generate a pulse-width-modulated (PWM) waveform with a duty cycle that is inversely proportional to the input voltage. An op amp and comparator generate a triangular waveform which is passed to one input of a comparator. By (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options

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