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Texas Instruments TL343IDBVTE4
- Part No.:
- TL343IDBVTE4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TL343IDBVTE4.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,335
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Product details
Overview
TL343IDBVTE4 from Texas Instruments is a single general-purpose operational amplifier with true differential input, Class AB output stage, and rail-to-rail input common-mode range extending to the negative supply. It operates from 3 V to 30 V single supply or ±1.5 V to ±15 V dual supply, delivers ±10 V output swing into 2 kΩ at ±15 V, and features 1 MHz unity-gain bandwidth and 1 V/µs slew rate - used in industrial sensor signal conditioning and low-voltage analog front-ends.
For engineers reviewing the TL343IDBVTE4 datasheet, TL343IDBVTE4 pinout, TL343IDBVTE4 application, or TL343IDBVTE4 equivalent, key selection criteria include input offset voltage (≤12 mV over temperature), supply voltage flexibility (3–30 V single-supply operation), thermal performance (θJA = 206°C/W), and SOT-23-5 package compatibility with space-constrained PCB layouts.
Technical Context
The TL343IDBVTE4 implements an internally compensated, DC-coupled op-amp architecture with a true differential-input stage referenced to VCC−/GND and high-impedance inputs (0.3–1 MΩ). Its Class AB output stage enables stable drive into 2 kΩ loads while maintaining low crossover distortion (1% at 10 kHz) and short-circuit protection up to ±55 mA.
It supports wide-supply operation without external compensation: the internal 5 pF capacitor ensures stability at unity gain with capacitive loads ≤200 pF, and its phase margin remains ≥44° under recommended conditions (RL = 2 kΩ, CL = 200 pF), enabling robust use in closed-loop transducer amplifiers and active filters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 30 V single supply; ±1.5 V to ±15 V dual supply - enables direct interface with 3.3 V, 5 V, and 24 V industrial systems without level-shifting. |
| Input Offset Voltage | Max 12 mV over −40°C to +125°C - sets worst-case DC error in precision gain stages and sensor bridges. |
| Unity-Gain Bandwidth | 1 MHz at VO = 50 mV, RL = 10 kΩ - supports stable amplification of audio-band and low-speed control signals. |
| Slew Rate | 1 V/µs at VI = ±10 V, CL = 100 pF - limits full-power bandwidth to ~160 kHz, suitable for non-RF analog signal paths. |
| Common-Mode Input Range | VCC− to (VCC+ − 2 V) - allows input signals referenced to ground in single-supply configurations. |
| Output Voltage Swing | ±10 V into 2 kΩ at ±15 V supplies - provides usable dynamic range for driving ADC references or analog actuators. |
| Input Bias Current | −800 nA max over temperature - minimizes voltage drop across high-impedance source networks (e.g., thermistor dividers). |
Pinout & Package
SOT-23-5 (DBV) package: 2.9 mm × 1.6 mm × 1.45 mm body, 0.95 mm pin pitch, exposed pad not present, RoHS-compliant NiPdAu lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN−) | Inverting input | High-impedance node for feedback network connection; accepts signals down to VCC−. |
| 2 (IN+) | Non-inverting input | High-impedance node for reference or sensor input; common-mode range includes VCC−. |
| 3 (VCC−/GND) | Negative supply / ground | Return path for supply current and input common-mode reference; must be low-impedance. |
| 4 (VCC+) | Positive supply | Primary power rail; supports up to 30 V single supply or +15 V in dual-supply mode. |
| 5 (OUT) | Amplified output | Class AB stage drives resistive loads ≥2 kΩ; short-circuit protected to ±55 mA. |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply operation | Operates from 3 V to 30 V with input range including ground - eliminates need for dual supplies in battery-powered or PLC I/O modules. |
| Internal frequency compensation | Stable unity-gain operation without external components - reduces BOM count and layout complexity in transimpedance or buffer designs. |
| Low input bias current | ≤800 nA over full temperature range - preserves accuracy in high-source-impedance applications like pH probe interfaces. |
| Short-circuit protection | Withstands ±55 mA continuous output fault current - enhances reliability in motor driver feedback or actuator control loops. |
| Wide operating temperature | Rated for −40°C to +125°C ambient - qualified for under-hood automotive sensors and industrial field devices. |
Applications
| Industrial Sensor Signal Conditioning | Low-Voltage Analog Front-End |
|---|---|
Use Scenario: Amplifying millivolt-level outputs from RTDs, strain gauges, or thermocouples in programmable logic controllers. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with low offset drift and rail-to-rail input capability. Use Value: Enables direct interface to 12-bit ADCs without additional level-shifting or trimming, reducing system cost and calibration overhead. | Use Scenario: Buffering and scaling signals in portable medical devices powered by 3.3 V or 5 V batteries. IC Role / Device Role / Timing Role: Single-supply voltage follower with 1 MHz bandwidth and low quiescent current (0.7–2.8 mA). Use Value: Maintains signal integrity across varying battery voltage (3–30 V), extending usable runtime without gain or offset recalibration. |
| Process Control Loop Amplifier | Legacy System Op-Amp Replacement |
Use Scenario: Driving 4–20 mA current loop transmitters via voltage-to-current conversion circuits in factory automation. IC Role / Device Role / Timing Role: High-output-swing amplifier with ±10 V capability into 2 kΩ, supporting compliant voltage headroom. Use Value: Delivers sufficient output compliance for standard 250 Ω shunt-based current generation, ensuring interoperability with DIN-rail I/O modules. | Use Scenario: Drop-in upgrade for µA741-based circuits requiring wider supply range and improved input stage performance. IC Role / Device Role / Timing Role: Pin-compatible functional replacement with identical SOT-23-5 footprint and compatible gain/phase response. Use Value: Eliminates redesign effort while improving common-mode rejection (70–90 dB) and reducing supply current by >30% versus legacy bipolar op-amps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM358DR | Lower unity-gain bandwidth (700 kHz), higher input offset voltage (7 mV typ), no short-circuit protection rating specified. | Optimized for cost-sensitive, low-speed applications; lacks guaranteed fault tolerance for industrial environments. | Select when budget constraints outweigh need for 1 MHz bandwidth or ±55 mA short-circuit robustness. |
| TLV2461CDBVR | Higher precision (2.5 mV max VIO), rail-to-rail output, but lower supply voltage ceiling (6 V max) and reduced output drive (±15 mA). | Better suited for ultra-low-voltage, high-accuracy portable instrumentation - not viable for 24 V industrial rails. | Choose only for sub-5 V battery-powered systems where output swing to rails is critical and supply headroom is limited. |
Compared with LM358DR and TLV2461CDBVR, the TL343IDBVTE4 uniquely balances wide-supply operation (3–30 V), guaranteed short-circuit protection, and 1 MHz bandwidth in a 5-pin SOT-23 - making it optimal for ruggedized analog signal chains where supply variability and fault resilience are design priorities.
Availability
TL343IDBVTE4 is available at Aetrix Electronics and suitable for industrial sensor interfaces, process control modules, and legacy op-amp upgrades requiring stable component supply across extended temperature and voltage ranges.
Supply support for TL343IDBVTE4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in high-reliability op-amp design and manufacturing.
The TL343 belongs to TI's general-purpose operational amplifier product line, engineered for robust performance in industrial automation, test equipment, and power supply monitoring where wide supply range and thermal stability are essential.
FAQ
What is the maximum supply voltage rating for TL343IDBVTE4?
The TL343IDBVTE4 supports a maximum total supply voltage of 36 V - either as ±18 V dual supply or 30 V single supply (VCC+ to VCC−/GND). Absolute maximum ratings specify VCC+ ≤ 18 V and VCC− ≥ −18 V relative to midpoint; exceeding these risks permanent damage. Operation within the recommended 3–30 V single-supply or ±1.5–±15 V dual-supply range ensures full specification compliance and long-term reliability of the TL343IDBVTE4.
Does TL343IDBVTE4 support rail-to-rail input and output?
The TL343IDBVTE4 supports rail-to-rail input common-mode range - specifically from VCC− to (VCC+ − 2 V) - allowing signals referenced to ground in single-supply configurations. However, its output swing is not rail-to-rail: it reaches VCC− on the low side but only up to VCC+ − 1.5 V on the high side (e.g., ±10 V into 2 kΩ at ±15 V). This behavior is inherent to its Class AB output stage and is fully characterized in the TL343IDBVTE4 datasheet for accurate system-level margining.
What is the thermal resistance (θJA) of TL343IDBVTE4 in its SOT-23-5 package?
The TL343IDBVTE4 in the SOT-23-5 (DBV) package has a specified junction-to-ambient thermal resistance (θJA) of 206°C/W under standard JEDEC test conditions (single-layer board, no copper pour). This value assumes minimal PCB copper area; actual thermal performance improves significantly with proper layout - such as using thermal vias and copper planes - which is critical for sustained operation near maximum ambient temperature (125°C) or high supply voltages. The TL343IDBVTE4's 150°C maximum junction temperature must be respected in all thermal designs.
Is TL343IDBVTE4 pin-compatible with µA741-based designs?
The TL343IDBVTE4 is not pin-compatible with the classic 8-pin µA741 due to its 5-pin SOT-23-5 package and different pin assignment (IN−, IN+, GND, VCC+, OUT). However, it is functionally compatible as a single op-amp replacement: its electrical behavior (gain, bandwidth, offset, drive strength) aligns closely with µA741 specifications while offering superior supply flexibility and input stage performance. Migration requires PCB layout revision but preserves schematic topology - making the TL343IDBVTE4 ideal for upgrading legacy µA741-based systems without altering core analog functionality.
What packaging and reel information applies to TL343IDBVTE4?
TL343IDBVTE4 is supplied in tape-and-reel format per TI's DBV0005A package outline: SOT-23-5, 3000 units per reel, 8.4 mm tape width, 4.0 mm pitch, Q3 pin-1 quadrant orientation. Reel dimensions are 180 mm diameter × 210 mm × 185 mm × 35 mm (L×W×H). The device carries top-side marking "T4I" followed by an assembly-site character, and is RoHS-compliant with NiPdAu lead finish and MSL Level-1 rating - enabling standard reflow without moisture sensitivity concerns. This packaging applies directly to TL343IDBVTE4 and matches TI's TL343IDBVR ordering variant.
TL343IDBVTE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 1V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 200 nA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 700µA
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TL343IDBVTE4 FAQ
1.How can I place an order for TL343IDBVTE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TL343IDBVTE4 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TL343IDBVTE4 reliable?
The price and inventory of TL343IDBVTE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL343IDBVTE4 is usually 5 days.
3.What payment methods are accepted for TL343IDBVTE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL343IDBVTE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL343IDBVTE4?
TL343IDBVTE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL343IDBVTE4 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TL343IDBVTE4?
For technical support, including TL343IDBVTE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL343IDBVTE4 requirements.
6.How does Aetrix verify that TL343IDBVTE4 is sourced from the original manufacturer or authorized distributors?
All TL343IDBVTE4 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TL343IDBVTE4 meets industry standards.
7.What is the process for return or replacement of TL343IDBVTE4?
All TL343IDBVTE4 units undergo pre-shipment inspection (PSI). If there is an issue with TL343IDBVTE4, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TL343IDBVTE4 part is unused and in its original packaging.
Return procedure for TL343IDBVTE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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