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Texas Instruments TLV2401CDR
- Part No.:
- TLV2401CDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2401CDR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,856
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Product details
Overview
TLV2401CDR from Texas Instruments is a single-channel, rail-to-rail input/output micro-power operational amplifier with reverse battery protection up to 18 V. It delivers 880 nA/channel supply current, 5.5 kHz gain bandwidth, and operates from 2.5 V to 16 V - enabling ultra-low-power sensor signal conditioning in Li-ion–powered portable instrumentation.
For engineers reviewing the TLV2401CDR datasheet, TLV2401CDR pinout, TLV2401CDR application, or TLV2401CDR equivalent, key selection criteria include its sub-1-µA quiescent current, ±20-V differential input rating, –0.1 V to VCC+5 V common-mode range, rail-to-rail output swing, and SOT-23-5 packaging for space-constrained designs.
Technical Context
The TLV2401CDR employs a dual-differential-input architecture: a PNP pair handles inputs from –0.1 V to VCC–0.8 V, while NPN emitter followers engage above VCC–0.8 V to enable 5-V over-the-rail operation without damage. Its reverse-battery protection relies on internal Schottky diode clamping, limiting reverse supply current to <100 nA at 25°C when VCC = –18 V.
DC precision is maintained via 390 µV typical input offset voltage (max 1500 µV over full temperature range), 120 dB CMRR at 25°C, and 130 V/mV open-loop gain at 2.7 V - all specified across 0°C to 70°C (C-suffix) operating range with guaranteed performance down to 2.5 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 880 nA/channel - enables multi-year battery life in always-on sensor nodes using megaohm-level feedback networks. |
| Gain Bandwidth Product | 5.5 kHz - supports low-frequency precision amplification (e.g., thermistor, strain gauge, pH electrode signals) without stability issues. |
| Input Common-Mode Range | –0.1 V to VCC+5 V - allows direct interfacing with overvoltage-tolerant sensors and operation beyond supply rails in fault conditions. |
| Rail-to-Rail Output | Swings within 180 mV of rails at 50 µA load - maximizes dynamic range in single-supply systems with limited headroom. |
| Reverse Battery Protection | Withstands –18 V supply reversal with <100 nA leakage - eliminates need for external series diodes in battery-powered equipment. |
| Input Offset Voltage | 390 µV typical (1500 µV max) - ensures <1 mV total error in unity-gain buffer configurations with high-impedance sources. |
| PSRR | 100 dB (min) at 2.7–5 V - rejects supply ripple in noisy battery or DC-DC converter environments without additional filtering. |
Pinout & Package
TLV2401CDR is housed in a 5-pin SOT-23 package (DBV), optimized for automated assembly and minimal PCB footprint. Pin 1 is marked with a dot; pin numbering follows standard SOT-23 top-view convention.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Delivers rail-to-rail voltage swing; capable of sourcing/sinking ±200 µA into high-impedance loads. |
| 2 (GND) | Analog ground reference | Primary return path for input bias currents and output load current; must connect to low-noise analog ground plane. |
| 3 (IN+) | Non-inverting input | Accepts signals from –0.1 V to VCC+5 V; exhibits <300 pA typical input bias current at 25°C. |
| 4 (VCC) | Positive supply | Supports 2.5–16 V operation; reverse-battery protected up to –18 V with <100 nA leakage. |
| 5 (IN–) | Inverting input | Differential partner to IN+; matched input characteristics ensure low offset drift and high CMRR. |
Key Features
| Feature | Design Value |
|---|---|
| Micro-power operation | 880 nA/channel supply current enables >10-year battery life in wireless sensor transmitters using CR2032 cells. |
| Rail-to-rail I/O | Full input range (–0.1 V to VCC+5 V) and output swing (within 180 mV of rails) maximize signal fidelity in 2.5–3.3 V systems. |
| Reverse battery protection | Internal Schottky clamping prevents damage and limits reverse current to <100 nA - removes external protection diodes and saves BOM cost. |
| High input impedance | 300 MΩ differential input resistance and <300 pA input bias current allow use with >1 MΩ sensor elements without significant loading error. |
| Low noise at 0.1–10 Hz | Integrated 1/f noise of ~800 nV/√Hz at 10 Hz supports precision DC measurements in medical and environmental monitoring. |
Applications
| Portable Gas Sensors | Medical ECG Front-Ends |
|---|---|
Use Scenario: Electrochemical gas sensor output (nA-level current) is converted to voltage using a TIA configuration with >10 MΩ feedback resistor. IC Role / Device Role / Timing Role: Precision transimpedance amplifier with ultra-low input bias current and rail-to-rail output to maximize ADC utilization. Use Value: 300 pA max input bias current avoids gain error; 880 nA supply current extends coin-cell lifetime beyond 5 years. | Use Scenario: Biopotential signal acquisition from dry electrodes with high source impedance (>100 kΩ) and sub-mV amplitude. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier buffer with overvoltage-tolerant inputs and low 1/f noise. Use Value: –0.1 V to VCC+5 V input range accommodates electrode offset drift; 390 µV offset minimizes baseline correction burden. |
| Smart Meter Battery Monitoring | Industrial Thermistor Interfaces |
Use Scenario: Monitoring Li-ion cell voltage during deep discharge (down to 2.5 V) while maintaining accuracy under reverse-polarity installation risk. IC Role / Device Role / Timing Role: Supply-rail referenced voltage monitor with reverse-battery immunity and stable DC gain. Use Value: –18 V reverse protection eliminates field failures from incorrect battery insertion; 2.5 V min supply enables operation through full battery discharge curve. | Use Scenario: Linearizing NTC thermistor response in HVAC control units powered by 12 V DC supplies with wide ambient temperature range. IC Role / Device Role / Timing Role: Precision voltage follower driving ADC reference divider with minimal self-heating error. Use Value: 120 dB CMRR rejects common-mode noise from shared power rails; 125°C max operating temperature ensures reliability in enclosed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2401IDR | Same electrical specs but rated for –40°C to 125°C industrial temperature range; higher max input offset voltage (1500 µV) over full range. | Suitable for automotive cabin modules or industrial PLC analog inputs requiring extended thermal robustness. | Select TLV2401IDR when ambient operating temperature exceeds 70°C or AEC-Q200 qualification is required. |
| LPV821DRX | Lower 650 nA supply current and 10 kHz GBW, but no reverse-battery protection; 1.7 V min supply; 350 µV max offset. | Better for ultra-low-power IoT endpoints where reverse polarity is not a concern and higher bandwidth is needed. | Choose LPV821DRX only if reverse-battery protection is unnecessary and sub-1 µA current with improved speed is prioritized. |
Compared with TLV2401IDR, TLV2401CDR offers lower cost and commercial-grade qualification for consumer/portable gear; versus LPV821DRX, it trades 1.5 kHz bandwidth for critical reverse-voltage resilience in battery-replaceable devices.
Availability
TLV2401CDR is available at Aetrix Electronics and suitable for portable instrumentation, battery-powered sensor nodes, and industrial analog front-ends requiring stable component supply, long-lifecycle support, and tape-and-reel delivery for SMT production.
Supply support for TLV2401CDR 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 digital signal technologies for industrial, automotive, and personal electronics markets.
The TLV240x product line was engineered for ultra-low-power, high-precision signal conditioning in battery-critical applications - emphasizing sub-1-µA operation, rail-to-rail functionality, and built-in fault tolerance like reverse-battery protection.
FAQ
What is the maximum supply voltage for TLV2401CDR?
The absolute maximum supply voltage for TLV2401CDR is 17 V, with recommended operation from 2.5 V to 16 V. Exceeding 16 V risks parametric degradation, while operation below 2.5 V may cause loss of rail-to-rail output swing and increased input offset voltage drift. Electrical specifications are guaranteed at 2.7 V, 5 V, and 15 V.
Does TLV2401CDR support true rail-to-rail input and output?
Yes, TLV2401CDR supports true rail-to-rail input (–0.1 V to VCC+5 V) and output (within 180 mV of rails at 50 µA load). Its dual-input stage - PNP differential pair plus NPN emitter followers - enables operation beyond the positive rail without damage, making it ideal for overvoltage-tolerant sensor interfaces.
How does reverse battery protection work in TLV2401CDR?
TLV2401CDR incorporates internal Schottky diode clamping that limits reverse supply current to <100 nA at 25°C when VCC = –18 V (inputs grounded, outputs open). This eliminates the need for external series diodes in battery-powered equipment, reducing BOM count and forward-voltage drop while maintaining system reliability during improper battery installation.
What is the input bias current specification for TLV2401CDR?
TLV2401CDR exhibits 100 pA typical input bias current at 25°C (max 350 pA over 0°C to 70°C), enabling accurate amplification of signals from high-impedance sources such as pH electrodes, photodiodes, and thermistors. Its PNP/NPN composite input stage maintains low bias current even when inputs exceed VCC, unlike conventional rail-to-rail op-amps.
Can TLV2401CDR drive capacitive loads?
TLV2401CDR is stable with capacitive loads up to 100 pF, as confirmed by phase margin ≥60° and gain margin ≥15 dB under standard test conditions (RL = 500 kΩ, CL = 100 pF). For larger loads, external isolation resistors (e.g., 10–100 Ω in series with the output) are recommended to maintain stability without compromising DC accuracy.
TLV2401CDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.0025V/µs
- Gain Bandwidth Product:
- 5.5 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 100 pA
- Voltage - Input Offset:
- 390 µV
- Current - Supply:
- 900nA
- Current - Output / Channel:
- 200 µA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2401CDR FAQ
1.How can I place an order for TLV2401CDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2401CDR 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 TLV2401CDR reliable?
The price and inventory of TLV2401CDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2401CDR is usually 5 days.
3.What payment methods are accepted for TLV2401CDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2401CDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2401CDR?
TLV2401CDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2401CDR 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 TLV2401CDR?
For technical support, including TLV2401CDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2401CDR requirements.
6.How does Aetrix verify that TLV2401CDR is sourced from the original manufacturer or authorized distributors?
All TLV2401CDR 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 TLV2401CDR meets industry standards.
7.What is the process for return or replacement of TLV2401CDR?
All TLV2401CDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2401CDR, 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 TLV2401CDR part is unused and in its original packaging.
Return procedure for TLV2401CDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2401CDR Tags
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