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Texas Instruments TLV2450CP
- Part No.:
- TLV2450CP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLV2450CP.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,175
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Product details
Overview
TLV2450CP 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, 23 µA supply current per channel, and 20 µV typical input offset voltage across 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 TLV2450CP datasheet, TLV2450CP pinout, TLV2450CP application, or TLV2450CP equivalent, key selection criteria include shutdown functionality (16 nA/channel), rail-to-rail swing under 2.5-mA load, industrial temperature range (0°C to 70°C), and compatibility with high-density SOT-23-6 layouts.
Technical Context
The TLV2450CP implements 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). Its internal shutdown logic places the output in high-impedance state when SHDN ≤ 0.5 V (at VDD = 3 V) or ≤ 0.8 V (at VDD = 5 V), reducing quiescent current to 16 nA/channel.
Designed for single-supply operation, it achieves 106 dB PSRR and 76–89 dB CMRR over 2.7–6 V, with stable unity-gain performance into capacitive loads up to 1000 pF (56° phase margin). The amplifier is fully specified at 3 V and 5 V across its rated temperature range.
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, and 5 V rails without regulation. |
| Gain-Bandwidth Product | 220 kHz - enables stable amplification of DC–200 kHz signals in sensor interfaces and low-speed data acquisition. |
| Supply Current (Active) | 23 µA/channel - extends battery life in always-on wearable monitors and IoT edge nodes. |
| Supply Current (Shutdown) | 16 nA/channel - reduces standby power by >1400×, critical for intermittent-sampling systems. |
| Input Offset Voltage | 20 µV (typ) - ensures <10 µV error contribution in 12-bit precision front-ends at room temperature. |
| Output Drive | ±10 mA - drives 10 kΩ loads to rail while maintaining linearity, suitable for driving ADC reference buffers or DAC outputs. |
| Rail-to-Rail I/O | Yes - maximizes dynamic range in 3 V systems, delivering full 0–3 V output swing with 2.5 mA load. |
Pinout & Package
TLV2450CP is housed in an 8-pin plastic DIP (PDIP) package with 0.300-inch body width and standard through-hole mounting. Pin 1 is located at the left end of the top row when viewed from the top with the notch or dot oriented upward.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC | No internal connection - must be left unconnected or tied to GND for mechanical stability. |
| 2 | IN− | Inverting input - accepts differential signal or feedback network; rail-to-rail common-mode range (0 V to VDD). |
| 3 | IN+ | Non-inverting input - high-impedance CMOS node; bias current <5 nA enables high-Z sensor interfacing. |
| 4 | GND | Analog ground reference - must be connected to system AGND plane with low-inductance path. |
| 5 | SHDN | Active-low shutdown control - driven ≤0.5 V (3 V supply) or ≤0.8 V (5 V supply) to enter ultra-low-power mode. |
| 6 | VDD+ | Positive supply - accepts 2.7–6 V; decoupling capacitor (0.1 µF) required within 5 mm of pin. |
| 7 | OUT | Amplifier output - rail-to-rail capable; drives capacitive loads up to 1000 pF with stable phase margin. |
| 8 | NC | No internal connection - must be left unconnected or tied to GND for mechanical stability. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 3 V supply headroom - no level-shifting needed in low-voltage data paths. |
| Ultralow-power shutdown mode | 16 nA/channel current draw allows multi-year battery life in wake-on-event architectures. |
| 220 kHz GBW at 23 µA | Delivers >2× bandwidth vs. legacy micropower op-amps at same current - improves settling in multiplexed sensor arrays. |
| 20 µV input offset (typ) | Reduces calibration burden in precision instrumentation - eliminates need for external trimming in many 12-bit designs. |
| Specified from 3 V to 5 V | Guarantees performance across common battery and regulated supply voltages without derating. |
Applications
| Portable ECG Front-End | Low-Power Data Logger |
|---|---|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in handheld patient monitors. IC Role / Device Role / Timing Role: Primary signal-conditioning amplifier in first-stage instrumentation chain with programmable gain. Use Value: Rail-to-rail I/O preserves full 0–3 V ADC input range; 23 µA current enables >1-week runtime on coin cell. | Use Scenario: Buffering thermistor and RTD outputs in environmental monitoring nodes powered by solar-charged LiPo batteries. IC Role / Device Role / Timing Role: Precision voltage follower isolating high-impedance sensors from ADC sampling transients. Use Value: 20 µV offset minimizes temperature measurement error; shutdown mode cuts system sleep current to <100 nA. |
| Wearable Glucose Sensor Interface | Industrial Loop-Powered Transmitter |
Use Scenario: Amplifying amperometric current from enzymatic glucose reaction cells in continuous glucose monitors. IC Role / Device Role / Timing Role: Transimpedance amplifier with programmable feedback resistor and shutdown-controlled biasing. Use Value: ±10 mA output drives calibration DACs; 106 dB PSRR rejects switching regulator noise in compact PCB layout. | Use Scenario: Signal conditioning stage in 4–20 mA loop transmitters where power budget is constrained to <4 mA total. IC Role / Device Role / Timing Role: Low-drift buffer and level shifter converting sensor output to current-loop driver input. Use Value: 2.7 V minimum supply allows operation directly from loop voltage; 76–89 dB CMRR suppresses common-mode noise on long sensor cables. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2450CDR | Same electrical specs; 6-pin SOT-23 package (tape-and-reel), not PDIP. | Surface-mount assembly only; unsuitable for through-hole prototyping or high-vibration environments. | Select for automated production; requires rework of footprint and solder profile. |
| OPA348AIDBVR | Higher GBW (1 MHz), higher supply current (45 µA), no shutdown, 5-pin SOT-23. | Lacks shutdown and rail-to-rail input; better for higher-speed, non-battery-critical signal chains. | Choose when bandwidth >100 kHz is required and shutdown is unnecessary. |
Compared with TLV2450CDR, TLV2450CP offers identical analog performance but enables through-hole prototyping and manual assembly; compared with OPA348AIDBVR, TLV2450CP trades bandwidth for 2× lower supply current and adds shutdown - making it superior for energy-constrained, intermittently active systems.
Availability
TLV2450CP is available at Aetrix Electronics and suitable for portable medical equipment, battery-powered data loggers, and industrial loop-powered transmitters requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TLV2450CP 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 company headquartered in Dallas, Texas, specializing in analog, embedded processing, and digital signal solutions for industrial, automotive, and consumer markets.
The TLV245x family was designed specifically for ultralow-power, rail-to-rail signal conditioning in portable and battery-operated systems - emphasizing supply current efficiency without sacrificing ac performance or output drive.
FAQ
What is the operating temperature range for TLV2450CP?
The TLV2450CP is rated for 0°C to 70°C ambient operation (C-suffix device). This range is validated across all key parameters including input offset voltage, supply current, and gain-bandwidth product. It is not qualified for extended industrial (−40°C to 125°C) use - that capability applies only to TLV2450IP and TLV2450AIP variants. Always verify thermal design margins in enclosed enclosures.
Does TLV2450CP support true rail-to-rail input and output?
Yes, TLV2450CP 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). This is confirmed in the datasheet's "description" section and electrical characteristics tables for both 3 V and 5 V supplies. Input stage uses complementary CMOS inputs; output stage employs push-pull architecture.
How does the shutdown function work on TLV2450CP?
The TLV2450CP shutdown pin (Pin 5) is active-low: driving it ≤0.5 V (at VDD = 3 V) or ≤0.8 V (at VDD = 5 V) places the amplifier in ultralow-power mode, reducing supply current to 16 nA/channel and forcing the output into high-impedance state. Release requires pulling SHDN ≥2 V (VDD = 5 V) or ≥2 V (VDD = 3 V) - timing is characterized at 59 µs turn-on and 836 ns turn-off.
What is the maximum capacitive load TLV2450CP can drive stably?
TLV2450CP maintains 56° phase margin with 1000 pF capacitive load at unity gain (RL = 10 kΩ), as verified in Figure 24 of the datasheet. For loads >100 pF, a series isolation resistor (10–100 Ω) between output and capacitance is recommended to preserve stability in high-precision applications like ADC buffering.
Is TLV2450CP pin-compatible with other TLV245x family members?
No - TLV2450CP (8-pin PDIP) has a unique pinout incompatible with TLV2450CD (6-pin SOT-23) or TLV2451CP (8-pin PDIP, no shutdown). Pin 1 (NC), Pin 5 (SHDN), and Pin 8 (NC) distinguish it from non-shutdown variants. Substituting requires PCB layout revision; always cross-check PACKAGE PINOUTS section (page 3) before replacement.
TLV2450CP 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TLV2450CP FAQ
1.How can I place an order for TLV2450CP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2450CP 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 TLV2450CP reliable?
The price and inventory of TLV2450CP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2450CP is usually 5 days.
3.What payment methods are accepted for TLV2450CP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2450CP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2450CP?
TLV2450CP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2450CP 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 TLV2450CP?
For technical support, including TLV2450CP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2450CP requirements.
6.How does Aetrix verify that TLV2450CP is sourced from the original manufacturer or authorized distributors?
All TLV2450CP 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 TLV2450CP meets industry standards.
7.What is the process for return or replacement of TLV2450CP?
All TLV2450CP units undergo pre-shipment inspection (PSI). If there is an issue with TLV2450CP, 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 TLV2450CP part is unused and in its original packaging.
Return procedure for TLV2450CP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2450CP Tags
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