Product details

Architecture FET / CMOS Input, Voltage FB Number of channels (#) 1 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 2nd harmonic (dBc) 81 3rd harmonic (dBc) 93 @ MHz 1
Architecture FET / CMOS Input, Voltage FB Number of channels (#) 1 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 2nd harmonic (dBc) 81 3rd harmonic (dBc) 93 @ MHz 1
SOIC (D) 8 19 mm² 3.91 x 4.9 SOT-23 (DBV) 5 5 mm² 2.9 x 1.6
  • 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
  • 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

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.

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.

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Design & development

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Evaluation board

DEM-OPA-SO-1A — Single op-amp evaluation module for SO-8 package

The DEM-OPA-SO-1A demonstration fixture helps designers evaluate the operation and performance of TI's High Speed, Wide Bandwidth Operational Amplifiers. This unpopulated PC board is compatible with products offered in the 8-lead SOIC (D) package.

User guide: PDF
Not available on TI.com
Evaluation board

DEM-OPA-SOT-1A — Single op amp evaluation module for SOT23-5/6 package

The DEM-OPA-SOT-1A is a demonstration fixture that helps designers evaluate the operation and performance of TI's High Speed, Wide Bandwidth Operational Amplifiers. This unpopulated PC board is compatible with products offered in the SOT(DBV) package.

User guide: PDF
Not available on TI.com
Simulation model

OPA365 PSpice Model (Rev. A)

SBOC133A.ZIP (200 KB) - PSpice Model
Simulation model

OPA365 TINA-TI Reference Design (Rev. A)

SBOC134A.TSC (66 KB) - TINA-TI Reference Design
Simulation model

OPA365 TINA-TI Spice Model

SBOM203.TSM (5 KB) - TINA-TI Spice Model
Simulation tool

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

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 (...)
Simulation tool

TINA-TI — SPICE-based analog simulation program

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 (...)
User guide: PDF
Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

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 (...)
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Calculation tool

VOLT-DIVIDER-CALC — Voltage Divider Determines A Set of Resistors for a Voltage Divider

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.

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Design tool

Source Files for SBAA344

SBAM419.ZIP (22 KB)
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