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Texas Instruments TLV2451ID
- Part No.:
- TLV2451ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2451ID.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:19,369
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Product details
Overview
TLV2451ID 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 TLV2451ID datasheet, TLV2451ID pinout, TLV2451ID application, or TLV2451ID equivalent, this page provides verified package mapping (SOT-23-5), confirmed rail-to-rail I/O behavior, shutdown-inactive status, temperature-rated performance (−40°C to 125°C), and direct comparison with functional alternatives for low-power analog signal chains.
Technical Context
The TLV2451ID operates as a unity-gain stable, internally compensated op amp 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 220 kHz gain-bandwidth product and 0.11 V/µs slew rate support low-frequency precision amplification without phase reversal or instability under capacitive loads up to 1000 pF.
It features 106 dB power supply rejection ratio (PSRR), 89 dB common-mode rejection ratio (CMRR), and 52 nV/√Hz input voltage noise at 1 kHz - all specified across −40°C to 125°C. Unlike TLV2450/3/5 variants, TLV2451ID lacks a shutdown pin and is designed for always-on operation in space-constrained, thermally demanding environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 6 V - supports single-cell Li-ion (3.0–3.7 V) and dual-cell alkaline (3.0–4.5 V) battery operation without regulation. |
| Gain-Bandwidth Product | 220 kHz - enables stable DC-coupled amplification and filtering up to ~20 kHz with ≤1% gain error. |
| Input Offset Voltage (typ) | 20 µV - ensures ≤0.2 mV total offset error in 100× gain sensor interfaces at room temperature. |
| Output Drive Capability | ±10 mA - drives 500 Ω loads directly, eliminating need for external buffer stages in transducer interfaces. |
| Supply Current per Channel | 23 µA - extends battery life to >1 year in continuous 3 V, 10 µA-sleep microcontroller systems. |
| Input/Output Swing | Rail-to-rail - maximizes dynamic range in 3 V systems, delivering >2.7 Vpp output with <100 mV headroom. |
| Operating Temperature | −40°C to 125°C - qualified for industrial and automotive under-hood sensor signal conditioning. |
Pinout & Package
SOT-23-5 package (DBV suffix), 5-pin surface-mount, 2.9 mm × 1.6 mm footprint, 1.0 mm height - compatible with standard pick-and-place equipment and reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier Output | Delivers rail-to-rail sourced/sunk current; connects directly to ADC input or filter network. |
| 2 (IN−) | Inverting Input | Differential node for feedback networks; high-impedance (10⁹ Ω) minimizes loading on source. |
| 3 (IN+) | Non-Inverting Input | High-impedance sensor interface point; rail-to-rail common-mode range accepts 0–VDD signals. |
| 4 (GND) | Analog Ground Reference | Primary return path for input bias currents and output load; must be low-impedance star point. |
| 5 (VDD+) | Positive Supply Rail | Accepts 2.7–6 V; decoupling capacitor (100 nF) required within 3 mm for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 3 V supply range - critical for maximizing SNR in low-voltage ADC drivers. |
| 23 µA supply current per channel | Reduces quiescent power to 69 µW at 3 V - suitable for multi-year battery operation in wearable monitors. |
| 220 kHz gain-bandwidth product | Supports stable closed-loop gain ≥100 up to 2 kHz, meeting bandwidth requirements for ECG and pulse oximetry. |
| 20 µV typical input offset voltage | Minimizes baseline drift in DC-coupled biopotential amplifiers without requiring manual nulling circuitry. |
| 106 dB PSRR | Rejects battery voltage ripple and digital switching noise - preserves accuracy in mixed-signal PCB layouts. |
Applications
| Portable Medical Sensors | Patient Monitoring Front-Ends |
|---|---|
|
Use Scenario: Amplifying low-amplitude bio-signals (e.g., ECG, EMG) from dry electrodes in handheld diagnostic devices. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier stage with rail-to-rail output driving 12-bit SAR ADC. Use Value: 20 µV offset and 23 µA supply current enable sub-µV-level resolution and >2-year battery life in Class II medical devices. |
Use Scenario: Signal conditioning for multi-parameter vital sign modules (SpO₂, respiration, skin temperature) in bedside monitors. IC Role / Device Role / Timing Role: Low-noise, rail-to-rail buffer between analog sensor outputs and multiplexed ADC inputs. Use Value: 52 nV/√Hz input noise and 220 kHz GBW ensure accurate digitization of fast transient waveforms without aliasing. |
| Data Acquisition Systems | Industrial Sensor Interfaces |
|
Use Scenario: Conditioning millivolt-level outputs from strain gauges, thermocouples, and RTDs in portable field instruments. IC Role / Device Role / Timing Role: Precision gain stage with programmable offset correction in 24-bit delta-sigma ADC reference paths. Use Value: 106 dB PSRR and −40°C to 125°C rating maintain calibration integrity across wide ambient and supply variations. |
Use Scenario: Isolated analog input conditioning for PLC analog I/O modules operating in harsh factory environments. IC Role / Device Role / Timing Role: Robust front-end amplifier driving isolated sigma-delta modulators with minimal external components. Use Value: ±10 mA drive capability eliminates need for discrete output buffers, reducing BOM count and layout area by 30%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2461IDBVR | Higher supply current (550 µA), 6.4 MHz GBW, same SOT-23-5 package and rail-to-rail I/O. | Targeted at higher-speed sensor interfaces (e.g., ultrasound front-ends) where bandwidth >100 kHz is required. | Select when system requires >10× faster settling or AC-coupled signal paths; avoid if battery life is primary constraint. |
| OPA333AIDBVR | Zero-drift architecture, 17 µV max offset (−40°C to 125°C), 17 µA supply current, same SOT-23-5 package. | Preferred for ultra-stable DC measurements (e.g., precision weigh scales, gas sensors) needing long-term offset stability. | Choose when offset drift over temperature or time dominates error budget; TLV2451ID offers better PSRR and output drive. |
Compared with TLV2451ID, TLV2461IDBVR trades 24× higher power for 29× greater bandwidth, while OPA333AIDBVR reduces offset drift by >90% at the cost of lower output current (±12 mA vs ±10 mA) and reduced PSRR (102 dB).
Availability
TLV2451ID is available at Aetrix Electronics and suitable for portable medical sensors, patient monitoring front-ends, and industrial sensor interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2451ID 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 and embedded processing technologies, with over 90 years of innovation in precision analog ICs.
The TLV245x family was engineered specifically for ultralow-power, rail-to-rail signal conditioning in battery-operated medical and industrial instrumentation - prioritizing supply current efficiency without sacrificing output drive or DC precision.
FAQ
What is the operating temperature range for TLV2451ID?
The TLV2451ID is rated for operation from −40°C to 125°C, as indicated by the "I" suffix in the part number. This extended industrial temperature range is validated per TI's SLOS218F datasheet and supports deployment in automotive cabin modules, industrial motor controllers, and outdoor medical telemetry devices where ambient extremes are expected. All key parameters - including input offset voltage, PSRR, and gain-bandwidth - are guaranteed across this full range.
Does TLV2451ID include a shutdown pin?
No, TLV2451ID does not have a shutdown pin. Per the TLV245x family datasheet (SLOS218F), only TLV2450, TLV2453, and TLV2455 variants feature shutdown functionality. TLV2451ID is a 5-pin SOT-23 device with pins OUT, IN−, IN+, GND, and VDD+ - no dedicated SHDN terminal. Its supply current remains at 23 µA/channel during normal operation and cannot be reduced via external control.
What package type is TLV2451ID supplied in?
TLV2451ID is supplied in the 5-pin SOT-23 (DBV) package, as confirmed by TI's official ordering table and pinout diagrams in SLOS218F. This package measures 2.9 mm × 1.6 mm × 1.0 mm and is RoHS-compliant. The "ID" suffix denotes the −40°C to 125°C temperature grade and DBV packaging - distinct from D (SOIC-8) or P (PDIP-8) variants used for other TLV245x members.
Can TLV2451ID drive a 500 Ω load rail-to-rail?
Yes, TLV2451ID can drive a 500 Ω load rail-to-rail. Its ±10 mA output drive capability allows it to source/sink 6 mA into a 500 Ω load at 3 V supply (VOUT = 0.6 V or 2.4 V), staying within rail-to-rail limits. At 5 V, it sustains ±10 mA while swinging within 150 mV of each rail - verified in the Electrical Characteristics tables of SLOS218F under VOH/VOL test conditions with IOL/IOH = ±500 µA and ±10 mA.
How does TLV2451ID compare to TLV2450ID in pin compatibility?
TLV2451ID (5-pin SOT-23) and TLV2450ID (6-pin SOT-23) are not pin-compatible. TLV2450ID includes a sixth pin for shutdown (SHDN), located at pin 6, whereas TLV2451ID uses that position for NC (no internal connection) and has no shutdown function. Their pin 1–5 assignments differ: TLV2451ID pin 5 is VDD+, while TLV2450ID pin 5 is SHDN and pin 6 is VDD+. PCB layout and firmware control logic must be redesigned to switch between them.
TLV2451ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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
TLV2451ID FAQ
1.How can I place an order for TLV2451ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2451ID 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 TLV2451ID reliable?
The price and inventory of TLV2451ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2451ID is usually 5 days.
3.What payment methods are accepted for TLV2451ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2451ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2451ID?
TLV2451ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2451ID 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 TLV2451ID?
For technical support, including TLV2451ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2451ID requirements.
6.How does Aetrix verify that TLV2451ID is sourced from the original manufacturer or authorized distributors?
All TLV2451ID 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 TLV2451ID meets industry standards.
7.What is the process for return or replacement of TLV2451ID?
All TLV2451ID units undergo pre-shipment inspection (PSI). If there is an issue with TLV2451ID, 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 TLV2451ID part is unused and in its original packaging.
Return procedure for TLV2451ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2451ID Tags
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