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Texas Instruments TLV2450CDR
- Part No.:
- TLV2450CDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2450CDR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:7,500
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Product details
Overview
TLV2450CDR from Texas Instruments is a single-channel rail-to-rail input/output operational amplifier optimized for ultralow-power, low-voltage portable systems. It delivers 220 kHz gain-bandwidth, ±10 mA output drive, 23 µA supply current per channel, and 20 µV typical input offset voltage across a 2.7 V to 6 V supply range - enabling precision signal conditioning in battery-powered medical sensors and data acquisition front-ends.
For engineers reviewing the TLV2450CDR datasheet, TLV2450CDR pinout, TLV2450CDR application, or TLV2450CDR equivalent, key selection criteria include shutdown current (16 nA/channel), rail-to-rail swing capability at 3 V, thermal stability over −40°C to 125°C, and SOT-23-6 package compatibility with high-density PCB layouts.
Technical Context
The TLV2450CDR employs a CMOS input stage with rail-to-rail input common-mode range (0 V to VDD) and rail-to-rail output swing (within 250 mV of rails at 2.5 mA load). Its internal shutdown control places the output in high-impedance state while reducing quiescent current to 16 nA/channel - critical for intermittent-sampling architectures.
Designed for single-supply operation, it achieves 106 dB PSRR and 89 dB CMRR at 25°C with VDD/2 common-mode bias, supporting stable amplification in noisy mixed-signal environments. The 220 kHz GBW and 0.11 V/µs slew rate enable accurate low-frequency sensor signal buffering without phase distortion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 6 V - supports direct connection to Li-ion, coin-cell, or regulated 3.3 V/5 V rails without level-shifting. |
| Supply Current (per channel) | 23 µA - enables multi-year battery life in always-on wearable health monitors. |
| Gain-Bandwidth Product | 220 kHz - sufficient for ECG, pulse oximetry, and thermistor signal conditioning up to ~20 kHz. |
| Input Offset Voltage (typ) | 20 µV - minimizes DC error in precision bridge sensor interfaces and low-gain instrumentation stages. |
| Output Drive Capability | ±10 mA - drives 10 kΩ loads with full rail-to-rail swing, eliminating need for external buffers in ADC driver applications. |
| Shutdown Supply Current | 16 nA/channel - reduces system standby power by >99.9% versus active mode, ideal for duty-cycled sensing nodes. |
| Common-Mode Input Range | 0 V to VDD - accepts ground-referenced transducer outputs without biasing resistors or dual supplies. |
Pinout & Package
TLV2450CDR is housed in a 6-pin SOT-23 package (DBV), optimized for space-constrained PCBs. Pin 1 is marked by a molded dot or beveled edge; 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; high-impedance during shutdown. |
| 2 (IN−) | Inverting input | Accepts differential or single-ended feedback signals; CMOS input draws ≤4.5 nA bias current. |
| 3 (IN+) | Non-inverting input | Supports ground-referenced sensor inputs; common-mode range extends to both supply rails. |
| 4 (GND) | Analog ground reference | Must be connected to clean system ground plane; separates analog return from digital noise sources. |
| 5 (SHDN) | Active-low shutdown control | Pulled high (≥2 V at VDD = 5 V) for normal operation; driven low (<0.5 V) to enter ultra-low-power mode. |
| 6 (VDD+) | Positive supply | Accepts 2.7–6 V; internal regulation ensures stable biasing across supply variation and temperature. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full dynamic range utilization in 3 V systems - e.g., 0–3 V output swing driving SAR ADC references. |
| Ultralow 23 µA supply current | Permits integration into energy-harvesting nodes where average current budget is <100 µA. |
| 16 nA shutdown current | Reduces total system sleep current to nanoampere levels - essential for >10-year battery life in implantables. |
| 220 kHz gain-bandwidth at 3 V | Provides adequate phase margin for unity-gain stable operation with capacitive loads up to 1000 pF. |
| Specified from −40°C to 125°C | Validates performance in automotive cabin modules, industrial motor controllers, and outdoor IoT enclosures. |
Applications
| Portable Medical Sensors | Low-Power Data Acquisition |
|---|---|
|
Use Scenario: Amplifying microvolt-level bio-potential signals (e.g., ECG, EMG) in handheld diagnostic devices powered by CR2032 batteries. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end with rail-to-rail output driving 12-bit SAR ADC inputs. Use Value: 20 µV offset and 23 µA quiescent current extend battery life beyond 2 years while maintaining diagnostic-grade signal fidelity. |
Use Scenario: Conditioning thermistor, RTD, or strain gauge outputs in wireless sensor nodes transmitting via BLE or LoRaWAN. IC Role / Device Role / Timing Role: Low-drift, low-noise buffer and level shifter interfacing passive sensors to MCU ADCs operating at 3.3 V. Use Value: Rail-to-rail input eliminates external bias networks; shutdown mode cuts system idle power by 99.9% between sampling intervals. |
| Wearable Health Monitors | Industrial Process Transmitters |
|
Use Scenario: Pulse oximetry front-end where photodiode current is converted and amplified before digitization in wrist-worn units. IC Role / Device Role / Timing Role: Transimpedance amplifier with programmable gain and shutdown control synchronized to LED pulsing cycles. Use Value: 16 nA shutdown current prevents dark-current drift during LED off periods; 220 kHz GBW supports fast pulse response. |
Use Scenario: 4–20 mA loop-powered transmitter conditioning pressure or flow sensor outputs in hazardous-area field devices. IC Role / Device Role / Timing Role: High-PSRR (106 dB) signal conditioner rejecting supply ripple from loop-powered 24 V rails. Use Value: Stable 23 µA operation and −40°C to 125°C rating ensure reliability in uncontrolled ambient conditions without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2460CDR | Higher supply current (550 µA/channel), 6.4 MHz GBW, same SOT-23-6 package and rail-to-rail I/O. | Targeted at higher-speed signal chains (e.g., active filters, audio preamps); not suitable for multi-year battery operation. | Select TLV2460CDR only when bandwidth >1 MHz is required and power budget allows >20× increase in quiescent current. |
| OPA333AIDBVR | Zero-drift architecture, 17 µV max VIO (−40°C to 125°C), 17 µA supply current, but no shutdown pin. | Better DC precision for long-term sensor calibration; lacks hardware-controlled power gating for duty-cycled systems. | Choose OPA333AIDBVR when offset drift dominates error budget and firmware-controlled enable/disable suffices. |
Compared with TLV2450CDR, TLV2460CDR trades ultralow power for speed, while OPA333AIDBVR improves DC accuracy but removes hardware shutdown - making TLV2450CDR uniquely balanced for battery-constrained, precision, and intermittently active applications.
Availability
TLV2450CDR is available at Aetrix Electronics and suitable for portable medical equipment, low-power data acquisition systems, and industrial process transmitters requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for TLV2450CDR 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 over 90 years of innovation in precision analog design.
The TLV245x family was engineered specifically for micropower, rail-to-rail performance in single-supply portable and industrial systems - addressing the gap between legacy low-power op-amps and modern low-voltage signal chains.
FAQ
What is the maximum operating temperature range for TLV2450CDR?
The TLV2450CDR is rated for operation from −40°C to 125°C, as confirmed by its "I" temperature suffix in the device marking and validated across all electrical characteristics in the TI SLOS218F datasheet. This extended range supports deployment in under-hood automotive modules, industrial motor drives, and outdoor environmental sensors without thermal derating.
Does TLV2450CDR support true rail-to-rail input and output operation?
Yes, TLV2450CDR provides rail-to-rail input common-mode range (0 V to VDD) and rail-to-rail output swing (within 250 mV of each rail at 2.5 mA load), as specified in the "description" section and verified in Figures 1–2 and 11–14 of the SLOS218F datasheet. This enables direct interfacing with ground-referenced sensors and 3 V ADCs without external level-shifting circuitry.
How does the shutdown function operate on TLV2450CDR?
The SHDN pin (Pin 5) is an active-low control: driving it below 0.5 V (at VDD = 3 V) or 0.8 V (at VDD = 5 V) places TLV2450CDR into shutdown mode, reducing supply current to 16 nA/channel and forcing the output into high-impedance state. This behavior is documented in the "recommended operating conditions" table and Figure 35–41 of the SLOS218F datasheet.
What is the typical input offset voltage of TLV2450CDR and how stable is it over temperature?
The TLV2450CDR has a typical input offset voltage of 20 µV at 25°C, with a maximum of 1300 µV over the full −40°C to 125°C range. Its temperature coefficient is 0.3 µV/°C, ensuring minimal drift in precision measurement applications such as medical instrumentation and calibrated sensor interfaces.
Is TLV2450CDR compatible with 3 V logic-level microcontrollers for shutdown control?
Yes, TLV2450CDR's SHDN pin accepts standard 3 V logic: VIH is defined as ≥2 V (at VDD = 5 V) and ≥1.5 V (at VDD = 3 V), while VIL is ≤0.5 V (at VDD = 3 V) and ≤0.8 V (at VDD = 5 V). This allows direct interface with 3.3 V GPIOs without level shifters, as confirmed in the "recommended operating conditions" table of SLOS218F.
TLV2450CDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.11V/µs
- Gain Bandwidth Product:
- 220 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 500 pA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 23µA
- Current - Output / Channel:
- 10 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 6 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2450CDR FAQ
1.How can I place an order for TLV2450CDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2450CDR 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 TLV2450CDR reliable?
The price and inventory of TLV2450CDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2450CDR is usually 5 days.
3.What payment methods are accepted for TLV2450CDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2450CDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2450CDR?
TLV2450CDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2450CDR 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 TLV2450CDR?
For technical support, including TLV2450CDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2450CDR requirements.
6.How does Aetrix verify that TLV2450CDR is sourced from the original manufacturer or authorized distributors?
All TLV2450CDR 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 TLV2450CDR meets industry standards.
7.What is the process for return or replacement of TLV2450CDR?
All TLV2450CDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2450CDR, 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 TLV2450CDR part is unused and in its original packaging.
Return procedure for TLV2450CDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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