Specifications
| Type | Description |
|---|---|
| Part Number | OPA365 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Channel Count | 1 |
| Package Options | SOT-23-5 (DBV), SOIC-8 (D) |
| Input Type | CMOS |
| Minimum Stable Gain | 1 V/V |
| Gain Bandwidth | 50 MHz |
| Slew Rate | 25 V/us |
| Voltage Noise Density | 4.5 nV/sqrt(Hz) |
| Offset Drift | 1 uV/degC typ |
| Input Offset Voltage | 100 uV typ, 200 uV max |
| Power Supply Rejection Ratio | 10 uV/V typ |
| Channel Separation | 0.2 uV/V typ |
| Input Bias Current | +/-0.2 pA typ, +/-10 pA max |
| Input Offset Current | +/-0.2 pA typ, +/-10 pA max |
| Input Voltage Noise | 5 uVPP typ |
| Input Current Noise Density | 4 fA/sqrt(Hz) typ |
| Common-Mode Voltage Range | (V-) - 0.1 V to (V+) + 0.1 V |
| Common-Mode Rejection Ratio | 100 dB min, 120 dB typ |
| Differential Input Capacitance | 6 pF typ |
| Common-Mode Input Capacitance | 2 pF typ |
| Open-Loop Voltage Gain | 100 dB min, 120 dB typ |
| Open-Loop Voltage Gain | 100 dB min, 120 dB typ |
| Open-Loop Voltage Gain | 94 dB min |
| Settling Time | 200 ns typ |
| Settling Time | 300 ns typ |
| Overload Recovery Time | <0.1 us typ |
| Total Harmonic Distortion Plus Noise | 0.0004% typ |
| Voltage Output Swing From Rail | 10 mV typ, 20 mV max |
| Short-Circuit Current | +/-65 mA typ |
| Open-Loop Output Impedance | 30 ohm typ |
| Specified Supply Voltage Range | 2.2 V min, 5.5 V max |
| Quiescent Current Per Amplifier | 4.6 mA typ, 5 mA max |
| Quiescent Current Per Amplifier Over Temperature | 5 mA max |
| Recommended Supply Voltage | 2.2 V min, 5.5 V max |
| Specified Temperature Range | -40 degC to +125 degC |
| Operating Temperature Range | -40 degC to +150 degC |
| Absolute Maximum Supply Voltage | 5.5 V max |
| Absolute Maximum Signal Input Voltage Beyond Rails | -0.5 V min, +0.5 V max |
| Absolute Maximum Signal Input Current | -10 mA min, +10 mA max |
| Output Short-Circuit Rating | Continuous |
| Maximum Junction Temperature | 150 degC |
| Storage Temperature Range | -65 degC to +150 degC |
| HBM ESD Rating | +/-4000 V |
| CDM ESD Rating | +/-1000 V |
| Machine Model ESD Rating | +/-400 V |
| Thermal Resistance Junction-to-Ambient | 206.9 degC/W |
| Thermal Resistance Junction-to-Ambient | 140.1 degC/W |
| Datasheet Status | request_only |
Product Overview
The OPA365 is a Texas Instruments rail-to-rail CMOS operational amplifier in the Signal_Chain category. The OPA365 single version provides one amplifier channel and is specified for a 2.2 V to 5.5 V supply range. It is stable at a minimum gain of 1 V/V and provides 50 MHz gain bandwidth with 25 V/us slew rate at VS=5 V, G=1.
Input and precision characteristics include CMOS inputs, +/-0.2 pA typical input bias current at TA=25 degC, 100 uV typical and 200 uV maximum input offset voltage under the stated mid-supply test condition, and 1 uV/degC typical offset drift from -40 degC to +125 degC. The input common-mode voltage range extends from (V-) - 0.1 V to (V+) + 0.1 V, with 100 dB minimum and 120 dB typical CMRR over that range.
Package options are SOT-23-5 (DBV) and SOIC-8 (D). Thermal resistance junction-to-ambient is 206.9 degC/W for the DBV SOT-23 5-pin package and 140.1 degC/W for the D SOIC 8-pin package. These package and electrical limits support compact single-supply analog signal paths, rail-to-rail buffering, low-bias input stages, and fast settling amplifier functions.
Key Features
- Single-channel rail-to-rail CMOS operational amplifier
- SOT-23-5 and SOIC-8 package options
- Unity-gain stable at 1 V/V minimum gain
- 50 MHz gain bandwidth at VS=5 V
- 25 V/us slew rate at VS=5 V
- 100 uV typical input offset voltage
- +/-0.2 pA typical input bias current
- 4.5 nV/sqrt(Hz) voltage noise density at 100 kHz
- 2.2 V to 5.5 V supply range
- 200 ns typical settling to 0.1%
Typical Applications
- Single-supply signal-chain amplification
- Rail-to-rail voltage buffering
- Low-bias sensor interfaces
- Fast settling amplifier stages
- Compact SOT-23 analog circuits
- CMOS-input measurement front ends
Procurement Notes
When requesting a quote for OPA365, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What type of amplifier is the OPA365?
The OPA365 is a Texas Instruments rail-to-rail CMOS operational amplifier. The extracted device data identifies it as the single-channel version, with package options including SOT-23-5 (DBV) and SOIC-8 (D).
What supply voltage range does the OPA365 support?
The OPA365 is specified and recommended for operation from 2.2 V minimum to 5.5 V maximum supply voltage. The absolute maximum supply voltage is also listed as 5.5 V over the operating free-air temperature range.
Is the OPA365 stable at unity gain?
Yes. The device comparison data lists a minimum stable gain of 1 V/V, so the OPA365 is specified for unity-gain operation. Its gain bandwidth is listed as 50 MHz.
What are the main input characteristics of the OPA365?
The OPA365 uses CMOS inputs. At TA=25 degC, input bias current is +/-0.2 pA typical and +/-10 pA maximum, while input offset voltage is 100 uV typical and 200 uV maximum under the stated mid-supply test condition.
What package thermal data is available for OPA365?
Thermal resistance junction-to-ambient is listed as 206.9 degC/W for the OPA365 DBV SOT-23 5-pin package and 140.1 degC/W for the OPA365 D SOIC 8-pin package.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.