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Texas Instruments TLV2451IDR
- Part No.:
- TLV2451IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2451IDR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,128
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Product details
Overview
TLV2451IDR from Texas Instruments is a single-channel rail-to-rail input/output operational amplifier optimized for ultralow-power, low-voltage portable applications. It delivers 220 kHz gain-bandwidth, ±10 mA output drive, and 23 µA supply current per channel while operating from 2.7 V to 6 V - enabling high-precision signal conditioning in battery-powered medical sensors and data acquisition front-ends.
For engineers reviewing the TLV2451IDR datasheet, TLV2451IDR pinout, TLV2451IDR application, or TLV2451IDR equivalent, key selection criteria include its 20 µV typical input offset voltage, 106 dB PSRR, shutdown current of 16 nA/channel, rail-to-rail swing capability at 3 V, and SOT-23-5 packaging for space-constrained designs.
Technical Context
The TLV2451IDR 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), enabling full dynamic range utilization in single-supply systems. Its 220 kHz gain-bandwidth product and 0.11 V/µs slew rate support stable unity-gain buffering and low-frequency amplification without phase margin degradation.
It features no internal shutdown control terminal - unlike TLV2450/TLV2453/TLV2455 - and is specified across −40°C to 125°C industrial temperature range. The device achieves 76–89 dB CMRR and 88–106 dB PSRR over 2.7–6 V supply, ensuring robust performance in noisy embedded environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 6 V - supports direct operation from single Li-ion cell or 3.3 V/5 V rails without regulation. |
| Gain-Bandwidth Product | 220 kHz - enables stable DC-coupled amplification up to ~20 kHz with gain ≥10. |
| Supply Current per Channel | 23 µA - allows >1-year battery life in always-on sensor nodes powered by CR2032. |
| Input Offset Voltage (typ) | 20 µV - reduces DC error in precision instrumentation and bridge sensor interfaces. |
| Output Drive Capability | ±10 mA - drives 500 Ω loads directly, eliminating need for external buffer stages. |
| PSRR | 106 dB - rejects power rail noise in mixed-signal PCBs with shared analog/digital supplies. |
| Rail-to-Rail I/O | Yes - maximizes signal swing in 3 V systems, improving ADC utilization and SNR. |
Pinout & Package
TLV2451IDR is housed in a 5-pin SOT-23 package (DBV), with exposed pad not electrically connected. Pin 1 is marked by a molded dot or beveled edge; orientation follows standard JEDEC SOT-23 top view.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Delivers rail-to-rail voltage with ±10 mA sourcing/sinking capability. |
| 2 (GND) | Analog ground reference | Return path for input bias current and output load; must connect to clean analog ground plane. |
| 3 (IN+) | Non-inverting input | CMOS input with 0.3–4.5 nA bias current; accepts signals from 0 V to VDD. |
| 4 (VDD+) | Positive supply | Accepts 2.7–6 V; PSRR of 106 dB minimizes sensitivity to supply ripple. |
| 5 (IN−) | Inverting input | Differential input node; matched with IN+ for <20 µV offset and 76 dB+ CMRR. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full 0–VDD signal swing in single-supply configurations, preserving ADC resolution. |
| 23 µA supply current per channel | Reduces system-level power budget by >50% vs. comparable 100 µA op-amps, extending battery life. |
| 220 kHz gain-bandwidth at 3 V | Supports accurate low-frequency amplification (e.g., ECG, thermistor, strain gauge) without stability issues. |
| 106 dB power supply rejection | Maintains signal integrity when sharing supply with digital ICs or switching regulators. |
| −40°C to 125°C operating range | Validated for use in automotive cabin modules, industrial controllers, and outdoor IoT sensors. |
Applications
| Portable Medical Sensors | Low-Power Data Acquisition |
|---|---|
Use Scenario: Amplifying microvolt-level bio-signals (e.g., ECG, EMG) from dry electrodes in wearable patches. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end with rail-to-rail output driving 12-bit SAR ADC. Use Value: 20 µV offset and 23 µA quiescent current enable sub-µV signal fidelity and multi-week battery operation. | Use Scenario: Conditioning outputs from resistive temperature detectors (RTDs) and thermistors in wireless sensor nodes. IC Role / Device Role / Timing Role: Low-drift, low-noise buffer and gain stage interfacing to sigma-delta ADCs. Use Value: 76–89 dB CMRR rejects common-mode noise from long sensor traces; rail-to-rail I/O maximizes ADC dynamic range. |
| Industrial Process Monitoring | Battery-Powered Environmental Sensors |
Use Scenario: Signal conditioning for 4–20 mA loop-powered transmitters in factory automation systems. IC Role / Device Role / Timing Role: High-PSRR current-to-voltage converter and level-shifting amplifier operating from 3.3 V isolated supply. Use Value: 106 dB PSRR ensures immunity to supply ripple from loop power converters; 125°C rating supports harsh cabinet environments. | Use Scenario: Amplifying low-output piezoresistive pressure sensors in handheld air quality monitors. IC Role / Device Role / Timing Role: Single-supply sensor interface with shutdown-disabled operation and minimal self-heating. Use Value: 23 µA IDD enables continuous sampling without compromising CR2032 battery life beyond 2 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2451CDR | Same electrical specs but rated for 0°C to 70°C only; lower max junction temperature (150°C vs. 150°C same). | Not qualified for automotive or extended-temperature industrial use; limited to commercial-grade consumer devices. | Select TLV2451CDR only for cost-sensitive, non-critical ambient-temperature applications. |
| OPA333AIDBVR | Zero-drift architecture; 0.1 µV/°C offset drift vs. TLV2451IDR's 0.3 µV/°C; 17 µA IDD vs. 23 µA; 350 kHz GBW. | Better DC precision for long-term sensor calibration; higher GBW supports faster settling but increases power slightly. | Choose OPA333AIDBVR when offset drift dominates error budget; accept 6 µA higher current for 130 kHz extra bandwidth. |
Compared with TLV2451CDR, TLV2451IDR offers guaranteed operation to 125°C and wider supply range tolerance; versus OPA333AIDBVR, it trades zero-drift precision for lower cost, simpler layout (no external capacitor), and proven stability with capacitive loads up to 1000 pF.
Availability
TLV2451IDR is available at Aetrix Electronics and suitable for portable medical sensors, low-power data acquisition, industrial process monitoring, and battery-powered environmental sensors requiring stable component supply across extended temperature ranges.
Supply support for TLV2451IDR 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 high-reliability components.
The TLV245x family was designed specifically for ultralow-power, rail-to-rail signal conditioning in space- and energy-constrained portable and industrial systems - prioritizing supply current efficiency without sacrificing AC performance or output drive.
FAQ
What is the operating temperature range for TLV2451IDR?
The TLV2451IDR is specified for operation from −40°C to +125°C, making it suitable for automotive under-hood, industrial control cabinets, and outdoor environmental monitoring where thermal extremes occur. This rating is confirmed in the Absolute Maximum Ratings and Recommended Operating Conditions tables of the official TI datasheet SLOS218F.
Does TLV2451IDR include a shutdown pin?
No, TLV2451IDR does not have a shutdown pin. Unlike TLV2450, TLV2453, and TLV2455, the TLV2451 variant is a single-channel amplifier without shutdown functionality. This is explicitly stated in the Family Package Table and Pinouts section of the TLV245x datasheet - TLV2451 uses all five pins for signal and supply connections (OUT, GND, IN+, VDD+, IN−).
What is the typical input offset voltage of TLV2451IDR?
The typical input offset voltage of TLV2451IDR is 20 µV at 25°C and VDD = 3 V or 5 V, as specified in the Electrical Characteristics tables (pages 5 and 7) of the TI datasheet SLOS218F. Over the full −40°C to 125°C range, maximum offset is 1300 µV for the 'A' grade and 2000 µV for standard grade - TLV2451IDR corresponds to the 'I' suffix, indicating industrial temperature qualification.
Can TLV2451IDR operate from a 2.7 V supply?
Yes, TLV2451IDR is fully specified to operate from a minimum supply voltage of 2.7 V, as confirmed in the Recommended Operating Conditions table (page 4). At 2.7 V, it maintains rail-to-rail input/output swing, 220 kHz gain-bandwidth (typ), and 23 µA supply current - enabling direct integration with single-cell lithium batteries and low-voltage microcontrollers.
What package type is used for TLV2451IDR?
TLV2451IDR uses the 5-pin SOT-23 (DBV) package, as indicated by the "TLV2451IDBV" ordering option in the Datasheet's Packaging Table (page 2) and confirmed in the Pinouts diagram (page 3). The "R" suffix denotes tape-and-reel packaging; the base package remains SOT-23-5 with JEDEC-standard footprint and thermal characteristics (θJA = 324.1°C/W).
TLV2451IDR 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:
- 0.11V/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:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2451IDR FAQ
1.How can I place an order for TLV2451IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2451IDR 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 TLV2451IDR reliable?
The price and inventory of TLV2451IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2451IDR is usually 5 days.
3.What payment methods are accepted for TLV2451IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2451IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2451IDR?
TLV2451IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2451IDR 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 TLV2451IDR?
For technical support, including TLV2451IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2451IDR requirements.
6.How does Aetrix verify that TLV2451IDR is sourced from the original manufacturer or authorized distributors?
All TLV2451IDR 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 TLV2451IDR meets industry standards.
7.What is the process for return or replacement of TLV2451IDR?
All TLV2451IDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2451IDR, 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 TLV2451IDR part is unused and in its original packaging.
Return procedure for TLV2451IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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