Specifications
| Type | Description |
|---|---|
| Part Number | OPA4340 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package Case | OPA4340: SOIC-14 8.65 mm x 3.91 mm; SSOP-16 4.90 mm x 3.90 mm |
| Amplifier Channels | 4 |
| Supply Voltage Absolute Maximum | 5.5 V max |
| Signal Input Terminal Voltage Absolute Maximum | -0.5 V to 0.5 V beyond supply rails |
| Signal Input Terminal Current Absolute Maximum | 10 mA max |
| Output Short-Circuit Duration | Continuous |
| Operating Free-Air Temperature Absolute Maximum | -55°C to 125°C |
| Junction Temperature Absolute Maximum | 150°C max |
| Storage Temperature Range | -55°C to 125°C |
| ESD Rating HBM | ±600 V |
| ESD Rating CDM | ±250 V |
| Recommended Supply Voltage | 2.7 V to 5.5 V |
| Specified Temperature Range | -40°C to 125°C |
| OPA4340 Junction-to-Ambient Thermal Resistance | 115.8°C/W |
| OPA4340 Junction-to-Case Top Thermal Resistance | 67°C/W |
| OPA4340 Junction-to-Board Thermal Resistance | 58.3°C/W |
| OPA4340 Junction-to-Top Characterization Parameter | 19.9°C/W |
| OPA4340 Junction-to-Board Characterization Parameter | 57.9°C/W |
| Input Offset Voltage | ±150 µV typ, ±500 µV max |
| Input Offset Voltage Drift | ±2.5 µV/°C typ |
| Power Supply Rejection Ratio | 30 µV/V typ, 120 µV/V max |
| Channel Separation DC | 0.2 µV/V typ |
| Input Bias Current | ±0.2 pA typ, ±10 pA max |
| Input Bias Current Over Temperature | ±60 pA max |
| Input Offset Current | ±0.2 pA typ, ±10 pA max |
| Input Voltage Noise | 8 µVRMS typ |
| Input Voltage Noise Density | 25 nV/√Hz typ |
| Current Noise Density | 3 fA/√Hz typ |
| Common-Mode Voltage Range | -0.3 V to (V+)+0.3 V |
| Common-Mode Rejection Ratio | 80 dB min, 92 dB typ |
| Common-Mode Rejection Ratio | 70 dB min, 84 dB typ |
| Common-Mode Rejection Ratio | 66 dB min, 80 dB typ |
| Differential Input Impedance | 10^13 Ω || 3 pF |
| Common-Mode Input Impedance | 10^13 Ω || 6 pF |
| Open-Loop Voltage Gain | 106 dB min, 124 dB typ |
| Open-Loop Voltage Gain | 100 dB min, 120 dB typ |
| Open-Loop Voltage Gain | 94 dB min, 114 dB typ |
| Gain-Bandwidth Product | 5.5 MHz typ |
| Slew Rate | 6 V/µs typ |
| Settling Time 0.1% | 1 µs typ |
| Settling Time 0.01% | 1.6 µs typ |
| Overload Recovery Time | 0.2 µs typ |
| Total Harmonic Distortion Plus Noise | 0.0007% typ |
| Voltage Output Swing From Rail | 1 mV typ, 5 mV max |
| Voltage Output Swing From Rail | 10 mV typ |
| Voltage Output Swing From Rail | 40 mV typ |
| Short-Circuit Current | ±50 mA typ |
| Specified Voltage Range | 2.7 V to 5 V |
| Operating Voltage Range | 2.5 V to 5.5 V |
| Quiescent Current Per Amplifier | 750 µA typ, 950 µA max |
| Specified Electrical Temperature Range | -40°C to 85°C |
| Operating Temperature Range | -55°C to 125°C |
| Datasheet Status | request_only |
Product Overview
The OPA4340 is a Texas Instruments quad rail-to-rail operational amplifier in the Signal_Chain category. It integrates four amplifier channels and is specified with a recommended supply voltage range of 2.7 V to 5.5 V. Electrical table data lists a 2.7 V to 5 V specified voltage range and a 2.5 V to 5.5 V operating voltage range.
Package information for OPA4340 includes SOIC-14 at 8.65 mm x 3.91 mm and SSOP-16 at 4.90 mm x 3.90 mm. For the DBQ SSOP-16 package, thermal data includes 115.8°C/W junction-to-ambient resistance, 67°C/W junction-to-case top resistance, and 58.3°C/W junction-to-board resistance.
Core analog parameters include ±150 µV typical and ±500 µV maximum input offset voltage at 25°C with 5 V supply, ±0.2 pA typical input bias current, 25 nV/√Hz typical input voltage noise density at 1 kHz, 5.5 MHz typical gain-bandwidth product, and 6 V/µs typical slew rate. These facts support use in rail-to-rail signal conditioning, low-current input buffering, and multi-channel analog front-end circuits within the stated supply and temperature limits.
Key Features
- Four amplifier channels in the OPA4340 quad version
- Recommended supply voltage range is 2.7 V to 5.5 V
- Specified temperature range is -40°C to 125°C
- Typical gain-bandwidth product is 5.5 MHz at G=1
- Typical slew rate is 6 V/µs with 100 pF load
- Typical input offset voltage is ±150 µV at 25°C
- Typical input bias current is ±0.2 pA at 25°C
- Typical input voltage noise density is 25 nV/√Hz
- Rail output swing reaches 1 mV typical with 100 kΩ load
- Typical quiescent current is 750 µA per amplifier
- Typical THD plus noise is 0.0007% at 1 kHz
- Output short-circuit duration is continuous to ground condition
Typical Applications
- Quad op-amp signal conditioning
- Rail-to-rail analog stages
- Low-bias input buffering
- 5 V analog front ends
- 2.7 V supply signal chains
- Multi-channel sensor interfaces
- Low-noise voltage amplification
- Compact SOIC-14 amplifier designs
Procurement Notes
When requesting a quote for OPA4340, 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
How many amplifier channels does OPA4340 include?
OPA4340 is the quad version and includes four amplifier channels. The product type is listed as a quad rail-to-rail operational amplifier from Texas Instruments in the Signal_Chain category.
What supply range is recommended for OPA4340?
The recommended supply voltage range is 2.7 V to 5.5 V. The electrical characteristics table also lists a 2.7 V to 5 V specified voltage range and a 2.5 V to 5.5 V operating voltage range.
What package options are listed for OPA4340?
The package information lists OPA4340 in SOIC-14 measuring 8.65 mm x 3.91 mm and SSOP-16 measuring 4.90 mm x 3.90 mm. Thermal resistance data is provided for the DBQ SSOP-16 package.
What are the main dynamic specifications of OPA4340?
At the stated conditions, OPA4340 has a 5.5 MHz typical gain-bandwidth product, 6 V/µs typical slew rate, 1 µs typical 0.1% settling time, and 1.6 µs typical 0.01% settling time.
What input current and noise values are specified?
At 25°C and 5 V unless otherwise noted, input bias current is ±0.2 pA typical and ±10 pA maximum. Input voltage noise density is 25 nV/√Hz typical at 1 kHz, and current noise density is 3 fA/√Hz typical.
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.