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Texas Instruments TLV2334IN
- Part No.:
- TLV2334IN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
TLV2334IN.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,132
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Product details
Overview
TLV2334IN from Texas Instruments is a quad low-voltage, medium-power operational amplifier in LinCMOS™ technology, designed for single-supply battery-powered systems. It operates from 2 V to 8 V over –40°C to 85°C, delivers 300 kHz unity-gain bandwidth and 0.38 V/µs slew rate at 3 V, and features rail-to-rail output swing down to the negative rail - enabling precision signal conditioning in portable medical sensors and low-power data acquisition.
For engineers reviewing the TLV2334IN datasheet, TLV2334IN pinout, TLV2334IN application, or TLV2334IN equivalent, this page provides verified electrical specifications, package-validated pin functions, real-world use cases in sensor front-ends and portable instrumentation, and two confirmed alternative parts with documented functional trade-offs.
Technical Context
The TLV2334IN uses silicon-gate LinCMOS™ process to achieve ultra-low input bias current (0.6 pA typ at 25°C) and high input impedance (10¹² Ω), making it suitable for interfacing with high-impedance sources like piezoelectric sensors and RC filter networks. Its input common-mode range extends from the negative rail to VDD – 1 V, supporting true single-supply operation without level-shifting circuitry.
Each of its four amplifiers is fully characterized at both 3 V and 5 V supply voltages, with guaranteed performance across temperature. The device incorporates internal ESD protection (2000 V per MIL-STD-883C Method 3015.2) and latch-up immunity, enabling robust deployment in industrial and portable environments where supply transients and handling stress are concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2 V to 8 V - enables direct operation from single Li-ion cell (3.0–3.7 V) or two alkaline cells (2.4–3.2 V). |
| Unity-Gain Bandwidth | 300 kHz at 3 V - supports accurate amplification of audio-band and low-speed sensor signals (e.g., thermocouples, strain gauges). |
| Slew Rate | 0.38 V/µs at 3 V - sufficient for <100 mVpp signals up to ~10 kHz without distortion in gain-of-10 configurations. |
| Input Offset Voltage | 10 mV max over full temperature range - sets DC accuracy limit in precision DC-coupled stages (e.g., pH probe buffers). |
| Supply Current per Amplifier | 310 µA max over –40°C to 85°C - allows four-channel amplification in sub-1.3 mA total system budget for coin-cell devices. |
| Input Bias Current | 0.6 pA typ at 25°C - minimizes voltage error across >10 MΩ source impedances (e.g., photodiode transimpedance feedback networks). |
| Common-Mode Input Range | Extends to negative rail and up to VDD – 1 V - eliminates need for external biasing in single-supply active filters and comparator input stages. |
Pinout & Package
TLV2334IN is supplied in a 14-pin plastic DIP (Dual In-line Package) with 0.3-inch body width and through-hole mounting. Pin spacing is 0.1 inch, compatible with standard PCB layouts and breadboard prototyping.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Output of amplifier A - drives loads up to ±30 mA; swings to within 190 mV of negative rail at 1 mA sink. |
| 2 | 1IN– | Inverting input of amplifier A - high-impedance node (10¹² Ω); accepts signals from –0.2 V to VDD – 0.3 V at 3 V supply. |
| 3 | 1IN+ | Non-inverting input of amplifier A - same voltage range and impedance as 1IN–; used for unity-gain buffer or differential sensing. |
| 4 | VDD–/GND | Ground reference for all four amplifiers - must be connected directly to system ground plane to maintain CMRR >60 dB. |
| 5 | 2IN+ | Non-inverting input of amplifier B - electrically identical to 1IN+; supports independent channel configuration. |
| 6 | 2IN– | Inverting input of amplifier B - matches 1IN– specs; enables dual-channel instrumentation amplifier topologies. |
| 7 | 2OUT | Output of amplifier B - fully independent output stage; shares same drive capability and rail-swing behavior as 1OUT. |
| 8 | VDD+ | Positive supply pin - accepts 2–8 V DC; requires local 0.1 µF ceramic bypass capacitor to GND for stability. |
| 9 | 3OUT | Output of amplifier C - identical AC/DC specs to 1OUT; enables three-stage signal chain (e.g., gain → filter → driver). |
| 10 | 3IN– | Inverting input of amplifier C - supports cascaded filtering or summing configurations with matched input characteristics. |
| 11 | 3IN+ | Non-inverting input of amplifier C - enables independent biasing or reference injection into third channel. |
| 12 | 4IN+ | Non-inverting input of amplifier D - allows fourth independent signal path; critical for multi-sensor monitoring systems. |
| 13 | 4IN– | Inverting input of amplifier D - matches all other inputs; supports differential input stage for noise rejection in ECG front-ends. |
| 14 | 4OUT | Output of amplifier D - completes quad functionality; capable of driving ADC input buffers or LED bias circuits directly. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Drives to within 115 mV of negative rail and 1.75 V below VDD at 3 V - preserves dynamic range in low-voltage ADC interfaces. |
| Ultra-low input bias current | 0.6 pA typical at 25°C - reduces offset drift in high-Z sensor interfaces (e.g., glass pH electrodes, capacitive touch sense nodes). |
| Single-supply optimized input range | Accepts inputs from ground to VDD – 1 V - eliminates external level shifters in battery-powered data loggers and portable meters. |
| ESD protection | Rated to 2000 V HBM (MIL-STD-883C Method 3015.2) - improves manufacturing yield and field reliability in unshielded handheld equipment. |
| Low quiescent power | 1.24 mA max total supply current (310 µA × 4) at 85°C - extends operating life in coin-cell–powered IoT edge nodes beyond 2 years. |
Applications
| Portable Medical Sensors | Industrial Data Acquisition |
|---|---|
|
Use Scenario: Amplifying microvolt-level signals from ECG electrodes in a handheld patient monitor powered by two AA batteries. IC Role / Device Role / Timing Role: Quad op-amp configured as three instrumentation amplifier stages plus one reference buffer - each channel processes one lead signal with matched gain and offset. Use Value: Rail-to-rail output ensures full utilization of 12-bit ADC input range; 0.6 pA input bias prevents electrode polarization errors in DC-coupled designs. |
Use Scenario: Signal conditioning for 4–20 mA loop-powered pressure transmitters in factory automation systems. IC Role / Device Role / Timing Role: Four independent amplifiers used for sensor excitation, bridge completion, offset nulling, and output buffering - all operating from 24 V via internal LDO-derived 5 V rail. Use Value: 10¹² Ω input impedance avoids loading of high-resistance Wheatstone bridge elements; 300 kHz bandwidth supports fast step-response calibration checks. |
| Low-Power Environmental Monitoring | Consumer Audio Pre-amplification |
|
Use Scenario: Battery-operated air quality sensor measuring CO₂ via NDIR detection, requiring stable gain and low drift over 5-year field deployment. IC Role / Device Role / Timing Role: Dual-channel configuration: one amplifier for photodiode TIA, second for reference voltage stabilization - both running continuously at 3 V. Use Value: 10 mV max input offset ensures <±0.5% full-scale error over temperature; 310 µA per amplifier enables >5-year runtime on CR2477 coin cell. |
Use Scenario: Line-level pre-amplifier in USB-C powered portable speaker, accepting analog input from smartphone headphone jack. IC Role / Device Role / Timing Role: Single amplifier configured as non-inverting gain stage (AV = 10), others unused or disabled - powered from 5 V USB bus. Use Value: 0.38 V/µs slew rate prevents slew-induced THD in 20 kHz audio band; rail-to-rail output maximizes SNR into 3.3 V ADC of digital signal processor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2374IN | Lower supply current (250 µA/amplifier max), higher GBW (2.4 MHz), but reduced output drive (±5 mA) and no rail-to-rail output. | Better for high-frequency, ultra-low-power apps (e.g., wireless sensor nodes), unsuitable where output must swing near rails. | Select TLV2374IN only if bandwidth >1 MHz is required and rail-to-rail output is not needed. |
| LM324N | Higher supply current (1.2 mA/amplifier), wider supply range (3–32 V), but much higher input offset (7 mV typ), no rail-to-rail output, and slower slew rate (0.5 V/ms). | Preferred for legacy industrial designs using 12–24 V supplies where cost and availability outweigh precision needs. | Choose LM324N only for cost-sensitive, wide-supply, non-battery applications where 300 kHz bandwidth is excessive. |
Compared with TLV2334IN, TLV2374IN trades rail-to-rail output and robust output drive for higher speed and lower quiescent current, while LM324N offers broader voltage tolerance and lower unit cost at the expense of precision, speed, and low-voltage operability - making TLV2334IN optimal for 2–5 V battery-powered precision analog front-ends.
Availability
TLV2334IN is available at Aetrix Electronics and suitable for portable medical devices, industrial data loggers, and low-power environmental sensors requiring stable component supply across extended production lifecycles.
Supply support for TLV2334IN 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 founded in 1930, specializing in analog ICs, embedded processors, and educational technology - with over 80,000 products serving industrial, automotive, and consumer markets.
The TLV2334IN belongs to TI's LinCMOS™ low-voltage op-amp family, engineered specifically for single-supply, battery-constrained applications demanding high input impedance, rail-to-rail output, and stable DC performance across temperature.
FAQ
What is the maximum operating temperature range for the TLV2334IN?
The TLV2334IN is rated for continuous operation from –40°C to +85°C ambient temperature. This range is validated per the manufacturer's recommended operating conditions and applies to all electrical specifications including supply current, input offset voltage, and unity-gain bandwidth - ensuring reliable performance in outdoor environmental sensors and industrial control cabinets.
Does the TLV2334IN support true rail-to-rail input operation?
The TLV2334IN does not support rail-to-rail input - its common-mode input voltage range extends from the negative rail (GND) to VDD – 1 V at 25°C. For example, at 3 V supply, inputs are valid from 0 V to 2 V. This design enables robust single-supply operation while maintaining high CMRR and low input bias current via LinCMOS™ process optimization.
Can the TLV2334IN drive a 10 kΩ load while maintaining specified slew rate?
Yes - the TLV2334IN maintains its 0.38 V/µs slew rate (at 3 V) into a 10 kΩ load with 20 pF capacitance, as confirmed in the datasheet's Figure 34 and operating characteristics tables. Output swing remains within specification (115 mV above GND, 1.75 V below VDD) under these conditions, making it suitable for driving anti-aliasing filters and ADC input networks.
Is the TLV2334IN pin-compatible with other quad op-amps in DIP-14 packages?
No - the TLV2334IN uses a proprietary pinout optimized for quad-channel independence and layout symmetry. It is not pin-compatible with industry-standard quad op-amps like LM324N or TL084CN. Engineers must verify routing against the official TLV2334IN pin diagram (page 1 of SLOS189) to avoid signal misconnection during PCB design or replacement.
What is the typical input offset voltage drift over temperature for TLV2334IN?
The TLV2334IN exhibits an average input offset voltage temperature coefficient (αVIO) of 1 µV/°C minimum to 1.7 µV/°C maximum across 25°C to 85°C. This low drift - confirmed in Table on page 8 of SLOS189 - ensures minimal gain error accumulation in precision DC-coupled applications such as strain gauge bridges and thermopile amplifiers operating over wide ambient ranges.
TLV2334IN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 0.43V/µs
- Gain Bandwidth Product:
- 525 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.6 pA
- Voltage - Input Offset:
- 1.1 mV
- Current - Supply:
- 210µA (x4 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 2 V
- Voltage - Supply Span (Max):
- 8 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 14-PDIP
TLV2334IN FAQ
1.How can I place an order for TLV2334IN through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2334IN 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 TLV2334IN reliable?
The price and inventory of TLV2334IN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2334IN is usually 5 days.
3.What payment methods are accepted for TLV2334IN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2334IN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2334IN?
TLV2334IN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2334IN 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 TLV2334IN?
For technical support, including TLV2334IN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2334IN requirements.
6.How does Aetrix verify that TLV2334IN is sourced from the original manufacturer or authorized distributors?
All TLV2334IN 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 TLV2334IN meets industry standards.
7.What is the process for return or replacement of TLV2334IN?
All TLV2334IN units undergo pre-shipment inspection (PSI). If there is an issue with TLV2334IN, 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 TLV2334IN part is unused and in its original packaging.
Return procedure for TLV2334IN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2334IN Tags
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LM358DT
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MCP6006UT-E/OT
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