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Texas Instruments TLV2450CDBVT
- Part No.:
- TLV2450CDBVT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SOT-23-6
- Datasheet:
-
TLV2450CDBVT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:497
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Product details
Overview
TLV2450CDBVT 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 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 TLV2450CDBVT datasheet, TLV2450CDBVT pinout, TLV2450CDBVT application, or TLV2450CDBVT equivalent, key selection criteria include shutdown-enabled power gating (16 nA/channel), SOT-23-6 package density, rail-to-rail swing under 2.5 mA load, and guaranteed operation from 0°C to 70°C with full ac/dc specs at 3 V and 5 V.
Technical Context
The TLV2450CDBVT integrates a shutdown control terminal that places the output in high-impedance state while reducing supply current to 16 nA/channel. Its rail-to-rail input stage uses complementary differential pairs, and the output stage employs Class AB architecture capable of sourcing/sinking ±10 mA while swinging within 250 mV of each rail under 2.5 mA load.
Designed for single-supply operation down to 2.7 V, it achieves 106 dB PSRR and 80 dB CMRR (typ) at 5 V, with 56° phase margin into 1 nF capacitive load. The amplifier is fully specified across temperature and supply voltage, supporting stable closed-loop performance in high-impedance sensor interfaces and low-noise instrumentation paths.
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 level-shifting. |
| Gain-Bandwidth Product | 220 kHz - enables stable unity-gain buffering and low-frequency filtering up to ~200 kHz. |
| Supply Current (per channel) | 23 µA - allows multi-year battery life in always-on wearable biosensors. |
| Input Offset Voltage (typ) | 20 µV - ensures sub-100 µV total error in 12-bit ADC front-ends with gain ≤ 100. |
| Output Drive Capability | ±10 mA - drives 500 Ω loads directly, eliminating external buffers in analog output stages. |
| Shutdown Current (per channel) | 16 nA - reduces system standby power by >99.9% versus active mode. |
| Rail-to-Rail I/O | Swings within 250 mV of VDD/GND at 2.5 mA - maximizes dynamic range in 3 V systems. |
Pinout & Package
TLV2450CDBVT is housed in a 6-pin SOT-23 (DBV) package with 1.6 mm × 2.9 mm footprint and 0.95 mm height - optimized for space-constrained PCB layouts in portable devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Delivers rail-to-rail voltage with ±10 mA drive; high-impedance during shutdown. |
| 2 (IN−) | Inverting input | Differential node for feedback networks; supports rail-to-rail common-mode range (0 V to VDD). |
| 3 (IN+) | Non-inverting input | High-impedance sensor interface node; matched bias current minimizes offset error. |
| 4 (GND) | Analog ground reference | Return path for input signals and output load; must be low-impedance for noise immunity. |
| 5 (SHDN) | Active-low shutdown control | Pulls <0.5 V (at 3 V supply) to enter shutdown; floats or ties to VDD to enable operation. |
| 6 (VDD+) | Positive supply | Accepts 2.7–6 V; internal regulation ensures stable biasing across voltage range. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow quiescent current | 23 µA/channel enables >10-year battery life in continuous-monitoring ECG nodes. |
| Rail-to-rail input/output | Full 0 V to VDD common-mode range and output swing preserves signal fidelity in 3 V systems. |
| Integrated shutdown terminal | Reduces current to 16 nA/channel - critical for duty-cycled pulse oximetry and glucose meters. |
| High output drive (±10 mA) | Directly drives ADC reference buffers, LED drivers, or 500 Ω transmission lines without external stages. |
| Specified at 3 V and 5 V | Guaranteed AC/DC performance across common portable supply rails - no derating required. |
Applications
| Portable Medical Sensors | Patient Monitoring Front-Ends |
|---|---|
Use Scenario: Amplifying microvolt-level biopotential signals (ECG, EEG) from dry electrodes in wearable patches. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier stage with rail-to-rail input to capture full sensor dynamic range. Use Value: 20 µV offset and 23 µA supply current enable <1 µV input-referred noise and multi-week battery life. | Use Scenario: Conditioning analog outputs from temperature, SpO₂, and respiration sensors in bedside monitors. IC Role / Device Role / Timing Role: Low-drift buffer and level-shifter between sensors and SAR ADC inputs. Use Value: ±10 mA drive supports driving 10 kΩ ADC input impedance and 100 pF trace capacitance without instability. |
| Data Acquisition Signal Chains | Battery-Powered Industrial Sensors |
Use Scenario: Front-end amplification for 12–16 bit precision ADCs in handheld multimeters and environmental loggers. IC Role / Device Role / Timing Role: Gain-setting stage with programmable shutdown to reduce system power between measurements. Use Value: 16 nA shutdown current allows microcontroller-controlled wake-up cycles with <1 µA average system current. | Use Scenario: Signal conditioning for strain gauges and thermistors in wireless condition-monitoring nodes. IC Role / Device Role / Timing Role: Low-power transducer amplifier with rail-to-rail output driving RC anti-alias filters. Use Value: 220 kHz GBW supports 100 Hz–1 kHz bandwidths with <0.1% gain error and minimal phase lag. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2451CDBVT | No shutdown pin; 5-pin SOT-23; identical ac/dc specs except missing SHDN functionality. | Suitable where continuous operation is required and board space permits omission of shutdown control logic. | Select when system-level power management is handled externally and lowest possible pin count is prioritized. |
| OPA344UA | Higher supply current (75 µA), higher GBW (1 MHz), no shutdown; SO-8 package. | Better for higher-speed signal paths but incompatible with ultra-low-power battery budgets. | Choose only if bandwidth >500 kHz is required and 3× higher quiescent current is acceptable. |
Compared with TLV2451CDBVT, TLV2450CDBVT adds shutdown control at the cost of one pin - essential for intermittent sensing. Versus OPA344UA, TLV2450CDBVT trades bandwidth for 3.3× lower supply current and SOT-23-6 footprint, making it superior for energy-constrained designs.
Availability
TLV2450CDBVT is available at Aetrix Electronics and suitable for portable medical equipment, patient monitoring systems, and data acquisition circuits requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for TLV2450CDBVT 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 ultralow-power, rail-to-rail signal conditioning in battery-operated medical and portable instrumentation - balancing ac performance, output drive, and nanoamp shutdown capability.
FAQ
What is the operating temperature range for TLV2450CDBVT?
The TLV2450CDBVT is rated for 0°C to 70°C ambient operation (C-suffix). All electrical specifications - including gain-bandwidth, input offset voltage, and shutdown current - are guaranteed across this full range at both 3 V and 5 V supply voltages, ensuring reliability in consumer and light-industrial portable environments.
How does the shutdown function work on TLV2450CDBVT?
The TLV2450CDBVT shutdown pin (Pin 5) is active-low: pulling it below 0.5 V (at VDD = 3 V) or 0.8 V (at VDD = 5 V) disables the amplifier and reduces supply current to 16 nA/channel. During shutdown, the output enters high-impedance state - preventing loading of downstream circuitry while preserving signal integrity in multiplexed systems.
Can TLV2450CDBVT drive capacitive loads?
Yes, TLV2450CDBVT maintains stability with up to 1000 pF capacitive load (56° phase margin at 1 nF), as verified in the datasheet Figure 24. For loads >100 pF, adding a small series resistor (10–50 Ω) between amplifier output and capacitor improves settling time and prevents peaking - critical for driving ADC input filters or long PCB traces.
What is the maximum output voltage swing for TLV2450CDBVT at 3 V supply?
At VDD = 3 V and 2.5 mA load, TLV2450CDBVT delivers rail-to-rail output swing within 250 mV of each rail - i.e., as low as 0.25 V and as high as 2.75 V. This 2.5 V peak-to-peak usable range maximizes resolution in 3 V systems, especially when paired with 12-bit ADCs having 0.73 mV LSB steps.
Is TLV2450CDBVT pin-compatible with other TLV245x variants?
No - TLV2450CDBVT (6-pin SOT-23) is not pin-compatible with TLV2451CDBVT (5-pin SOT-23) due to the dedicated SHDN pin. It shares the same 6-pin DBV footprint only with TLV2450IDBV and TLV2450AIDBV (industrial/automotive temp grades), but not with dual/quad variants or MSOP-packaged members of the family.
TLV2450CDBVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- 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:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
TLV2450CDBVT FAQ
1.How can I place an order for TLV2450CDBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2450CDBVT 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 TLV2450CDBVT reliable?
The price and inventory of TLV2450CDBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2450CDBVT is usually 5 days.
3.What payment methods are accepted for TLV2450CDBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2450CDBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2450CDBVT?
TLV2450CDBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2450CDBVT 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 TLV2450CDBVT?
For technical support, including TLV2450CDBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2450CDBVT requirements.
6.How does Aetrix verify that TLV2450CDBVT is sourced from the original manufacturer or authorized distributors?
All TLV2450CDBVT 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 TLV2450CDBVT meets industry standards.
7.What is the process for return or replacement of TLV2450CDBVT?
All TLV2450CDBVT units undergo pre-shipment inspection (PSI). If there is an issue with TLV2450CDBVT, 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 TLV2450CDBVT part is unused and in its original packaging.
Return procedure for TLV2450CDBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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