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Texas Instruments TLV2450CD
- Part No.:
- TLV2450CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2450CD.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,289
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Product details
Overview
TLV2450CD 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 TLV2450CD datasheet, TLV2450CD pinout, TLV2450CD application, or TLV2450CD equivalent, this page provides verified functional specifications, validated SOT-23-6 package mapping, confirmed shutdown behavior (16 nA/channel), rail-to-rail dynamic range implications, and real-world use cases in patient monitoring and low-power analog sensing circuits.
Technical Context
The TLV2450CD 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 load), enabling full utilization of 3 V and 5 V supplies. 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.
Integrated shutdown control (SHDN pin) places the output in high-impedance state and reduces quiescent current to 16 nA/channel, making it suitable for duty-cycled sensor interfaces. Fully specified over 0°C to 70°C (C-suffix), it maintains 106 dB PSRR and 96 dB open-loop gain at 25°C under 3 V and 5 V operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 6 V - supports direct connection to single-cell Li-ion (3.0–3.7 V) and dual-cell alkaline (3–4.5 V) systems without regulation. |
| Supply Current (per channel) | 23 µA typ - enables >1-year battery life in 10 µA-average-current wearable sensors with periodic wake-up cycles. |
| Gain-Bandwidth Product | 220 kHz - sufficient for anti-aliasing filters, ECG lead amplifiers, and thermistor signal conditioning up to ~20 kHz closed-loop bandwidth. |
| Input Offset Voltage | 20 µV typ - ensures <0.2 mV error in 100× gain stages used in precision biopotential measurement. |
| Output Drive Capability | ±10 mA - drives 500 Ω loads directly, eliminating need for external buffer stages in DAC output interfaces or transducer drivers. |
| Shutdown Current | 16 nA per channel - reduces system standby power by >99.9% versus active mode, critical for energy-harvesting nodes. |
| Rail-to-Rail I/O | Inputs accept 0 V to VDD; outputs swing within 250 mV of rails at 2.5 mA - maximizes ADC dynamic range in 3 V systems. |
Pinout & Package
SOT-23-6 plastic package (DBV suffix), 2.9 mm × 1.6 mm footprint, 0.95 mm height - compatible with high-density PCB layouts and automated pick-and-place assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Amplifier output | Delivers rail-to-rail voltage with ±10 mA sourcing/sinking capability; high-impedance during shutdown. |
| 2 (IN−) | Inverting input | CMOS input with 0.3 nA bias current; accepts common-mode voltages from 0 V to VDD. |
| 3 (IN+) | Non-inverting input | CMOS input matched to IN−; enables precision differential or single-ended configurations. |
| 4 (GND) | Analog ground reference | Return path for input bias currents and output load; must be low-impedance to minimize noise coupling. |
| 5 (SHDN) | Shutdown control | Active-high logic input; drives output to Hi-Z and cuts supply current to 16 nA when pulled ≥2 V (at VDD = 5 V). |
| 6 (VDD+) | Positive supply | Accepts 2.7–6 V; internal regulation ensures stable operation across battery discharge curve. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full-scale signal swing in 3 V systems - e.g., 0–3 V output from 0–3 V sensor input without level-shifting. |
| Ultralow 23 µA supply current | Reduces thermal drift and self-heating in sealed enclosures; allows use in thermally constrained medical housings. |
| Integrated shutdown mode (16 nA) | Permits microcontroller-controlled power gating of analog front-end - essential for duty-cycled pulse oximetry or glucose monitors. |
| 220 kHz GBW with 0.11 V/µs slew rate | Supports stable unity-gain follower operation on capacitive loads up to 1000 pF without external compensation. |
| 106 dB PSRR at DC | Maintains accuracy in noisy environments (e.g., near switching regulators or RF modules) without additional filtering. |
Applications
| Portable ECG Monitor Front-End | Low-Power Thermistor Signal Chain |
|---|---|
|
Use Scenario: Amplifying microvolt-level cardiac signals from dry electrodes in battery-operated wearable patches. IC Role / Device Role / Timing Role: Primary instrumentation amplifier stage with rail-to-rail input to capture full ECG baseline (0–3 V), followed by 100× gain and 220 kHz bandwidth for QRS complex fidelity. Use Value: 20 µV offset ensures <2 mV total error at 100× gain; 23 µA current extends coin-cell life to >18 months at 1 Hz sampling. |
Use Scenario: Linearizing and amplifying resistance changes from NTC thermistors in smart thermostats or HVAC sensors. IC Role / Device Role / Timing Role: Constant-current source driver + buffer for ratiometric ADC interface, operating continuously at 3.3 V with minimal self-heating. Use Value: Rail-to-rail output ensures full 0–3.3 V ADC range utilization; 106 dB PSRR rejects supply ripple from shared LDO. |
| Implantable Glucose Sensor Interface | Industrial Battery Monitoring IC |
|
Use Scenario: Conditioning amperometric current output (nA–µA) from enzyme-based glucose electrodes in subcutaneous devices. IC Role / Device Role / Timing Role: Transimpedance amplifier with shutdown control synchronized to intermittent measurement bursts every 5 minutes. Use Value: 16 nA shutdown current minimizes background drain; 0.3 nA input bias avoids significant error in high-impedance current-to-voltage conversion. |
Use Scenario: Measuring cell voltage in multi-cell Li-ion packs where space and power budget constrain analog front-end design. IC Role / Device Role / Timing Role: Precision buffer between resistive divider and SAR ADC, powered only during voltage read cycles via SHDN pin. Use Value: 23 µA active current and 16 nA shutdown enable >10-year shelf life; rail-to-rail input accommodates 0–4.2 V cell range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2460CD | Higher supply current (550 µA), 6.4 MHz GBW, same SOT-23-6 package and rail-to-rail I/O. | Targeted at higher-speed signal chains (e.g., audio preamps) where bandwidth >1 MHz is required. | Select TLV2460CD only if >200 kHz GBW is needed; TLV2450CD remains optimal for sub-100 kHz, ultra-low-power designs. |
| OPA333AIDBVR | Zero-drift architecture, 17 µV max offset, 17 µA supply current, SOT-23-5 (no shutdown pin). | Used where long-term DC stability dominates over shutdown capability - e.g., precision weight scales. | Choose OPA333AIDBVR for <1 µV/°C drift-critical applications; TLV2450CD preferred when shutdown control and 220 kHz GBW are mandatory. |
Compared with TLV2460CD, TLV2450CD reduces supply current by 96% at the cost of bandwidth - ideal for always-on sensor nodes. Against OPA333AIDBVR, TLV2450CD trades zero-drift performance for integrated shutdown and higher output drive, better suiting pulsed-sensing architectures.
Availability
TLV2450CD is available at Aetrix Electronics and suitable for portable medical equipment, battery-powered data loggers, and industrial sensor transmitters requiring stable component supply across extended production lifecycles.
Supply support for TLV2450CD 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 decades of expertise in precision op-amps and low-power signal chain solutions.
The TLV245x family was designed specifically for ultralow-power, rail-to-rail performance in portable and medical electronics - balancing micropower consumption, usable bandwidth, and robust output drive in miniature packages.
FAQ
What is the operating temperature range for TLV2450CD?
The TLV2450CD is rated for 0°C to 70°C ambient operation (C-suffix). This industrial-grade range supports deployment in consumer wearables, handheld diagnostics, and indoor environmental sensors without thermal derating. It does not meet extended −40°C to 125°C requirements - for those, TI offers the TLV2450ID variant.
Does TLV2450CD support true rail-to-rail input and output?
Yes, TLV2450CD supports rail-to-rail input (common-mode range from 0 V to VDD) and rail-to-rail output (swings 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 operation.
How does the shutdown feature of TLV2450CD function?
The TLV2450CD's SHDN pin (Pin 5) is active-high: driving it ≥2 V (at VDD = 5 V) or ≥0.8 V (at VDD = 3 V) places the output in high-impedance state and reduces supply current to 16 nA per channel. The datasheet specifies t(off) = 836 ns and t(on) = 59 µs, enabling fast wake-up in burst-mode sensing.
What package type is TLV2450CD supplied in?
TLV2450CD is supplied in the 6-pin SOT-23 (DBV) package - a surface-mount, ultrasmall outline transistor package measuring 2.9 mm × 1.6 mm. This matches the "TLV2450/1" family designation in the datasheet's PACKAGE TABLE and is distinct from the 8-pin SOIC (D) or PDIP (P) variants.
Can TLV2450CD operate from a single 3 V supply?
Yes, TLV2450CD is fully specified at 3 V single supply (VDD = 3 V), with all key parameters - including 220 kHz GBW, 23 µA supply current, 20 µV offset, and rail-to-rail I/O - guaranteed across 0°C to 70°C. Its minimum supply of 2.7 V also supports operation down to end-of-life battery voltage.
TLV2450CD 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:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLV2450CD FAQ
1.How can I place an order for TLV2450CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2450CD 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 TLV2450CD reliable?
The price and inventory of TLV2450CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2450CD is usually 5 days.
3.What payment methods are accepted for TLV2450CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2450CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2450CD?
TLV2450CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2450CD 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 TLV2450CD?
For technical support, including TLV2450CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2450CD requirements.
6.How does Aetrix verify that TLV2450CD is sourced from the original manufacturer or authorized distributors?
All TLV2450CD 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 TLV2450CD meets industry standards.
7.What is the process for return or replacement of TLV2450CD?
All TLV2450CD units undergo pre-shipment inspection (PSI). If there is an issue with TLV2450CD, 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 TLV2450CD part is unused and in its original packaging.
Return procedure for TLV2450CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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