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Texas Instruments TLV2455CPWR
- Part No.:
- TLV2455CPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLV2455CPWR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
TLV2455CPWR from Texas Instruments is a quad 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/channel supply current, and operates from 2.7 V to 6 V - enabling high-precision signal conditioning in battery-powered medical sensors and data acquisition front-ends.
For engineers reviewing the TLV2455CPWR datasheet, TLV2455CPWR pinout, TLV2455CPWR application, or TLV2455CPWR equivalent, key selection criteria include shutdown current (16 nA/channel), rail-to-rail swing under load, input offset voltage (20 µV typ), and TSSOP-16 package compatibility with space-constrained PCB layouts.
Technical Context
The TLV2455CPWR integrates four independent amplifiers with individual shutdown control per pair (pins 1/2SHDN and 3/4SHDN), enabling selective channel power gating. Its rail-to-rail input stage uses complementary differential pairs, while the output stage employs Class AB push-pull architecture capable of sourcing/sinking ±10 mA while maintaining 250 mV headroom to rails at 2.5 mA load.
Designed for single-supply operation down to 2.7 V, it features 106 dB PSRR and 80 dB CMRR (typ) across 0–5 V common-mode range, with stable unity-gain performance into 1000 pF capacitive loads - critical for driving ADC inputs and sensor bridges without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 6 V - supports direct connection to Li-ion (3.0–4.2 V) and 5 V logic rails without regulation. |
| Gain-Bandwidth Product | 220 kHz - enables stable DC-coupled amplification of slow-varying biosignals (ECG, temperature) with minimal phase lag. |
| Supply Current per Channel | 23 µA - allows continuous operation of all four op-amps for >1 year on a 200 mAh coin cell. |
| Shutdown Current per Channel | 16 nA - reduces total system quiescent current to nanoampere level when channels are disabled. |
| Input Offset Voltage | 20 µV (typ) - ensures <1 µV error contribution in precision 16-bit sensor signal chains. |
| Output Drive Capability | ±10 mA - drives 10 kΩ ADC input impedance or 500 Ω resistive loads without gain error or distortion. |
| Rail-to-Rail I/O | Swings within 250 mV of VDD/GND at 2.5 mA - maximizes dynamic range in 3 V systems (e.g., 0.25–2.75 V output span). |
Pinout & Package
TSSOP-16 package (4.4 mm × 5.0 mm, 0.65 mm pitch) with exposed thermal pad; RoHS-compliant, moisture-sensitive level 2a.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT, 2OUT, 3OUT, 4OUT | Amplifier output terminals | Each drives independent load; outputs enter high-Z state during respective shutdown assertion. |
| 1IN−, 2IN−, 3IN−, 4IN− | Inverting input | Accepts differential or single-ended signals; common-mode range extends to both rails. |
| 1IN+, 2IN+, 3IN+, 4IN+ | Non-inverting input | Supports unity-gain buffer configurations with full rail-to-rail input capability. |
| VDD+ | Positive supply | Single supply pin shared by all four amplifiers; decoupling required within 1 cm. |
| GND | Ground reference | Common return for all channels; separate analog ground routing recommended. |
| 1/2SHDN, 3/4SHDN | Channel pair shutdown control | Active-high logic; pulls corresponding amplifier outputs to high-Z and cuts bias current to 16 nA/channel. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 3 V supply range in single-supply instrumentation, eliminating level-shifting circuitry. |
| Ultralow 23 µA/channel supply current | Reduces thermal drift and PCB self-heating in dense sensor arrays, improving long-term measurement stability. |
| 16 nA/channel shutdown current | Permits dynamic power management in multi-channel data loggers - only active channels consume power. |
| 220 kHz gain-bandwidth at 23 µA | Delivers 3× higher bandwidth than competing micropower op-amps at same current, supporting faster sensor response. |
| Specified from −40°C to 125°C | Validates performance across automotive cabin and industrial ambient conditions without derating. |
Applications
| Portable ECG Monitor Front-End | Low-Power Temperature Sensor Signal Chain |
|---|---|
Use Scenario: Amplifying microvolt-level cardiac signals from dry electrodes in wearable patches with 3 V coin-cell power. IC Role / Device Role / Timing Role: Quad TLV2455CPWR configures two channels as low-noise instrumentation amps (INA), one as filter, one as ADC driver. Use Value: 23 µA/channel current enables >2-year battery life; rail-to-rail output drives 16-bit SAR ADC input over full 0–3 V range. | Use Scenario: Conditioning output from thermistor or RTD bridge in battery-operated HVAC sensors. IC Role / Device Role / Timing Role: One channel buffers bridge excitation, two configure as precision difference amp, fourth drives low-side current sense. Use Value: 20 µV offset ensures <0.1°C error in 10 kΩ thermistor readout; shutdown mode powers down unused channels during sleep cycles. |
| Industrial Data Acquisition Module | Medical Patient Monitoring System |
Use Scenario: Multi-channel analog input module acquiring 4–20 mA loop signals, thermocouples, and strain gauges in field instruments. IC Role / Device Role / Timing Role: Each TLV2455CPWR provides four independent gain stages; multiple devices support 16+ channel simultaneous sampling. Use Value: TSSOP-16 footprint minimizes board area vs SOIC-16; 106 dB PSRR rejects switching regulator noise in mixed-signal PCBs. | Use Scenario: Centralized bedside monitor aggregating SpO₂, respiration, and NIBP signals with isolated power domains. IC Role / Device Role / Timing Role: TLV2455CPWR channels isolate and condition each sensor path before multiplexing into shared ADC. Use Value: 16 nA shutdown current prevents leakage-induced baseline drift during patient alarm silence periods. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2465IPW | Higher supply current (550 µA/ch), 6.4 MHz GBW, no shutdown | Better for AC-coupled audio or fast sensor interfaces requiring >1 MHz bandwidth | Select TLV2465IPW when speed outweighs battery life; TLV2455CPWR preferred for sub-1 kHz DC precision. |
| OPA2333AIDR | Zero-drift architecture, 17 µA/ch, no shutdown, 350 kHz GBW | Superior long-term offset stability (<0.02 µV/°C) but lacks channel disable capability | Choose OPA2333AIDR for ultra-stable DC measurements; TLV2455CPWR when dynamic power control is mandatory. |
Compared with TLV2465IPW and OPA2333AIDR, the TLV2455CPWR uniquely balances nanoscale shutdown current, rail-to-rail operation, and 220 kHz bandwidth - making it the only option that meets simultaneous requirements for battery longevity, full-supply-range signal fidelity, and selective channel power gating in portable diagnostics.
Availability
TLV2455CPWR is available at Aetrix Electronics and suitable for portable medical equipment, patient monitoring systems, and data acquisition circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2455CPWR 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 amplifiers and low-power signal chain solutions.
The TLV245x family was designed specifically for ultralow-power, rail-to-rail signal conditioning in portable and battery-operated instrumentation - prioritizing supply current efficiency without sacrificing usable bandwidth or output drive.
FAQ
What is the operating temperature range for TLV2455CPWR?
The TLV2455CPWR is specified for operation from −40°C to 125°C (I-suffix grade), validated across this full industrial temperature range with no derating required. Electrical characteristics including input offset voltage, supply current, and gain-bandwidth product remain guaranteed per the datasheet under these conditions, making TLV2455CPWR suitable for under-hood automotive and factory-floor industrial environments.
Does TLV2455CPWR support true rail-to-rail output swing under load?
Yes, TLV2455CPWR achieves rail-to-rail output swing within 250 mV of VDD and GND while sourcing or sinking 2.5 mA - confirmed in the datasheet's "Output Voltage Swing vs Output Current" curves (Figures 11–14). This capability holds across the full 2.7–6 V supply range and −40°C to 125°C temperature range, enabling full-scale utilization of 3 V ADC references without external level-shifting circuitry.
How does the shutdown function work on TLV2455CPWR?
The TLV2455CPWR implements dual-pair shutdown: pins 1/2SHDN control amplifiers 1 and 2, while pins 3/4SHDN control amplifiers 3 and 4. When driven high (≥2 V at VDD = 5 V, ≥0.8 V at VDD = 3 V), the corresponding amplifier outputs enter high-impedance state and supply current drops to 16 nA per channel. The shutdown timing is characterized - turnoff occurs in 836 ns, turnon in 59 µs - allowing rapid channel reactivation in burst-mode sensing.
What is the typical input offset voltage of TLV2455CPWR and how stable is it?
The TLV2455CPWR has a typical input offset voltage of 20 µV at 25°C, with a maximum of 1300 µV over the full −40°C to 125°C range. Its temperature coefficient is 0.3 µV/°C, meaning offset drift contributes less than 0.5 µV over a 20°C ambient shift - critical for maintaining accuracy in uncalibrated portable medical sensors where TLV2455CPWR is commonly deployed.
Can TLV2455CPWR drive capacitive loads without oscillation?
Yes, TLV2455CPWR maintains stability into 1000 pF capacitive loads, as verified by phase margin measurements of 56° and gain margin of 7 dB under those conditions (datasheet Figure 24). This allows direct connection to ADC input capacitors, long PCB traces, or piezoelectric sensor cables without external isolation resistors - a key advantage over many micropower op-amps that require ≥100 Ω series resistance for stability.
TLV2455CPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- 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 (x4 Channels)
- 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:
- 16-TSSOP
TLV2455CPWR FAQ
1.How can I place an order for TLV2455CPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2455CPWR 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 TLV2455CPWR reliable?
The price and inventory of TLV2455CPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2455CPWR is usually 5 days.
3.What payment methods are accepted for TLV2455CPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2455CPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2455CPWR?
TLV2455CPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2455CPWR 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 TLV2455CPWR?
For technical support, including TLV2455CPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2455CPWR requirements.
6.How does Aetrix verify that TLV2455CPWR is sourced from the original manufacturer or authorized distributors?
All TLV2455CPWR 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 TLV2455CPWR meets industry standards.
7.What is the process for return or replacement of TLV2455CPWR?
All TLV2455CPWR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2455CPWR, 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 TLV2455CPWR part is unused and in its original packaging.
Return procedure for TLV2455CPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2455CPWR Tags
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