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Texas Instruments TLV2451AIP
- Part No.:
- TLV2451AIP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLV2451AIP.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,388
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Product details
Overview
TLV2451AIP 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 operates from 2.7 V to 6 V - enabling precision signal conditioning in battery-powered medical sensors and data acquisition front-ends.
For engineers reviewing the TLV2451AIP datasheet, TLV2451AIP pinout, TLV2451AIP application, or TLV2451AIP equivalent, key selection criteria include its −40°C to 125°C industrial temperature rating, 5-pin PDIP package, rail-to-rail I/O swing within 250 mV of rails at 2.5 mA load, and verified shutdown current of 16 nA/channel - critical for long-life portable instrumentation design.
Technical Context
The TLV2451AIP employs a CMOS input stage with rail-to-rail common-mode input range (0 V to VDD) and rail-to-rail output swing, supporting full dynamic range in single-supply 3 V systems. Its internal architecture enables stable unity-gain operation with 56° phase margin into 1000 pF capacitive loads.
It features no internal shutdown control - unlike TLV2450/3/5 - making it a fixed-function, always-on op amp. The device is fully specified across −40°C to 125°C at both 3 V and 5 V supplies, with input offset voltage ≤1000 µV (max) and PSRR of 106 dB at 5 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 6 V - supports direct connection to Li-ion, 3.3 V, or dual-cell alkaline supplies without regulation. |
| Gain-Bandwidth Product | 220 kHz - enables stable amplification of DC–200 kHz sensor signals (e.g., ECG, thermistor bridges) with minimal phase lag. |
| Supply Current (per channel) | 23 µA - allows >1-year battery life in continuous-monitoring devices using CR2032 or AA cells. |
| Input Offset Voltage (max) | 1000 µV - ensures ≤0.1% error in 1 V full-scale 12-bit ADC front-ends without trimming. |
| Output Drive Capability | ±10 mA - drives 500 Ω loads directly (e.g., analog multiplexer inputs, LED bias, DAC buffers) without external gain stages. |
| Rail-to-Rail I/O | Inputs swing 0 V to VDD; outputs swing within 250 mV of rails at 2.5 mA - maximizes usable signal swing in 3 V systems. |
| PSRR | 106 dB - rejects power supply noise (e.g., switching regulator ripple) to preserve signal integrity in mixed-signal PCBs. |
Pinout & Package
TLV2451AIP uses an 8-pin plastic DIP (PDIP) package with standard through-hole mounting. Pin 1 is identified by a beveled edge or molded "U" shape.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (1IN−) | Differential input node; high-impedance CMOS input (10⁹ Ω) accepts microvolt-level sensor signals. |
| 2 | Non-Inverting Input (1IN+) | Differential input node; common-mode range extends to both supply rails for single-supply biasing. |
| 3 | Output (1OUT) | Class-AB output stage capable of sourcing/sinking ±10 mA while maintaining rail-to-rail swing. |
| 4 | GND | Analog ground reference; must be connected to clean system ground plane to minimize noise coupling. |
| 5 | NC | No internal connection - left unconnected; not used for thermal or electrical purposes. |
| 6 | Shutdown (1SHDN) | Not functional on TLV2451 - this pin is unconnected internally; device operates continuously. |
| 7 | VDD+ | Positive supply input; accepts 2.7–6 V; decoupling capacitor (0.1 µF) required adjacent to pin. |
| 8 | NC | No internal connection - left unconnected; electrically isolated from die. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full 0–3 V signal utilization in 3 V systems, eliminating level-shifting circuitry and reducing BOM count. |
| Ultralow 23 µA supply current | Reduces quiescent power to 69 µW at 3 V - ideal for always-on wearable biosensors with multi-year battery requirements. |
| 220 kHz gain-bandwidth at 23 µA | Delivers 10× higher AC performance than legacy micropower op amps (e.g., TLC27L2), enabling faster settling in data loggers. |
| ±10 mA output drive | Drives 500 Ω loads directly - eliminates need for external buffer stages in analog front-end designs. |
| Specified over −40°C to 125°C | Validated for automotive cabin modules, industrial process transmitters, and outdoor environmental monitors. |
Applications
| Portable Patient Monitor Front-End | Low-Power Data Acquisition System |
|---|---|
Use Scenario: Amplifying weak biopotential signals (e.g., ECG, EMG) from dry electrodes in handheld diagnostic tools. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail instrumentation amplifier stage with DC-coupled gain and anti-alias filtering. Use Value: 23 µA supply current extends CR2032 battery life beyond 2 years; rail-to-rail I/O preserves full 0–3 V ADC input range. | Use Scenario: Conditioning thermistor, RTD, or strain gauge outputs in battery-operated environmental sensors. IC Role / Device Role / Timing Role: Precision, low-drift signal conditioner interfacing passive sensors to SAR ADCs. Use Value: 1000 µV max input offset ensures <0.1% measurement error at 1 V span; 220 kHz GBW supports 100 Hz filter cutoffs with margin. |
| Industrial Process Transmitter | Smart Sensor Signal Chain |
Use Scenario: Providing excitation and signal conditioning for 4–20 mA loop-powered pressure/flow transmitters. IC Role / Device Role / Timing Role: Low-power, high-PSRR op amp in bridge amplifier and voltage-to-current conversion stages. Use Value: 106 dB PSRR suppresses loop supply noise; −40°C to 125°C rating ensures reliability in uncontrolled cabinet environments. | Use Scenario: Integrating analog signal path in MEMS-based IoT nodes (e.g., vibration, humidity, gas sensors). IC Role / Device Role / Timing Role: General-purpose, rail-to-rail op amp for sensor biasing, filtering, and ADC driving. Use Value: 5-pin PDIP simplifies prototyping and rework; 2.7 V min supply enables direct use with energy-harvesting power sources. |
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 core specs, but in 5-pin SOT-23 package; rated for 0°C to 70°C only. | Suitable for commercial-grade portable devices where space is constrained and temperature range is limited. | Select when board area is critical and industrial temp grade is unnecessary. |
| OPA348AIDR | Higher 1 MHz GBW and 0.5 V/µs slew rate, but 44 µA supply current; same rail-to-rail I/O and −40°C to 125°C rating. | Better for higher-frequency sensor interfaces (e.g., ultrasonic, audio preamps) where speed outweighs power budget. | Choose when 220 kHz GBW is insufficient and 2× supply current is acceptable. |
Compared with TLV2451CDR, TLV2451AIP offers extended temperature support and through-hole assembly compatibility; compared with OPA348AIDR, it reduces supply current by 48% at the cost of bandwidth - making TLV2451AIP optimal for ultra-low-power, DC–200 kHz applications demanding industrial reliability.
Availability
TLV2451AIP is available at Aetrix Electronics and suitable for portable medical equipment, industrial process transmitters, and battery-powered data acquisition systems requiring stable component supply across extended temperature ranges.
Supply support for TLV2451AIP 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 TLV245x family was designed specifically for ultralow-power, rail-to-rail signal conditioning in single-supply portable and industrial instrumentation - prioritizing supply current efficiency without sacrificing output drive or AC performance.
FAQ
What is the operating temperature range of the TLV2451AIP?
The TLV2451AIP is rated for operation from −40°C to +125°C, meeting industrial and extended-temperature requirements. This specification is validated per TI's SLOS218F datasheet across all electrical parameters including input offset voltage, supply current, and gain-bandwidth product - ensuring reliable performance in harsh environments such as factory automation controllers or automotive under-hood sensors.
Does the TLV2451AIP have a shutdown function?
No, the TLV2451AIP does not include a functional shutdown feature. Unlike TLV2450/3/5 variants, pins 5 and 6 on the TLV2451AIP are NC (no internal connection). The device operates continuously whenever powered; shutdown capability is exclusive to members of the TLV245x family designated with "0", "3", or "5" in the suffix - confirmed in the Family Package Table of the TLV245x datasheet.
What package type is used for the TLV2451AIP?
The TLV2451AIP uses an 8-pin plastic DIP (PDIP) package, denoted by the "P" suffix in TI's ordering nomenclature. This through-hole package has a 0.3-inch body width and 0.1-inch pin pitch, supporting manual soldering, socketing, and breadboard prototyping - distinct from the SOT-23 or MSOP packages used by other TLV245x variants like TLV2451CDBV or TLV2451IDBV.
What is the maximum output current capability of the TLV2451AIP?
The TLV2451AIP delivers ±10 mA output current into resistive loads at 5 V supply, as specified in the Electrical Characteristics table (VDD = 5 V, VO = 0.5 V from rail). This enables direct driving of moderate-impedance loads such as analog multiplexers, LED indicators, or DAC reference buffers without external transistor stages - a key differentiator versus older micropower op amps limited to ±1 mA.
How does the TLV2451AIP compare to the TLV2451CD in terms of performance and packaging?
The TLV2451AIP and TLV2451CD share identical electrical specifications (220 kHz GBW, 23 µA IDD, rail-to-rail I/O), but differ in temperature grade and package: TLV2451AIP is −40°C to 125°C in PDIP, while TLV2451CD is 0°C to 70°C in SOIC. The "A" prefix denotes the extended temperature grade; "P" confirms PDIP packaging - both explicitly defined in TI's TLV245x Available Options tables.
TLV2451AIP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- 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:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TLV2451AIP FAQ
1.How can I place an order for TLV2451AIP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2451AIP 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 TLV2451AIP reliable?
The price and inventory of TLV2451AIP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2451AIP is usually 5 days.
3.What payment methods are accepted for TLV2451AIP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2451AIP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2451AIP?
TLV2451AIP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2451AIP 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 TLV2451AIP?
For technical support, including TLV2451AIP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2451AIP requirements.
6.How does Aetrix verify that TLV2451AIP is sourced from the original manufacturer or authorized distributors?
All TLV2451AIP 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 TLV2451AIP meets industry standards.
7.What is the process for return or replacement of TLV2451AIP?
All TLV2451AIP units undergo pre-shipment inspection (PSI). If there is an issue with TLV2451AIP, 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 TLV2451AIP part is unused and in its original packaging.
Return procedure for TLV2451AIP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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