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Texas Instruments TLV2455AIN
- Part No.:
- TLV2455AIN
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
TLV2455AIN.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,350
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Product details
Overview
TLV2455AIN from Texas Instruments is a quad rail-to-rail input/output operational amplifier optimized for ultra-low-power, single-supply portable systems. It delivers 220 kHz gain-bandwidth, 23 µA/channel supply current, ±10 mA output drive, 20 µV typical input offset voltage, 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 TLV2455AIN datasheet, TLV2455AIN pinout, TLV2455AIN application, or TLV2455AIN equivalent, this page provides verified electrical specifications, TSSOP-16 package layout, shutdown functionality details, rail-to-rail dynamic range implications, and direct alternatives for low-voltage analog signal chains requiring micropower operation and industrial temperature support (−40°C to 125°C).
Technical Context
The TLV2455AIN 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 low-voltage supplies. Its 220 kHz gain-bandwidth product and 0.11 V/µs slew rate are optimized for DC-coupled sensor interfaces and slow-varying biomedical signals rather than high-frequency AC amplification.
Each channel features independent shutdown control via dedicated SHDN pins (pins 1 and 16), reducing quiescent current to 16 nA per channel during sleep mode while placing outputs in high-impedance state - critical for power-gated multi-channel monitoring systems. The device is fully specified across −40°C to 125°C and supports stable operation with capacitive loads up to 1000 pF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 6 V - enables direct operation from single Li-ion cell (3.0–3.7 V) or two alkaline cells (3.0 V nominal) without regulation. |
| Supply Current (per channel) | 23 µA typ at 3 V - allows >1-year battery life in always-on wearable ECG monitors using CR2032 coin cell. |
| Gain-Bandwidth Product | 220 kHz - sufficient for anti-aliasing filters and DC–100 Hz biosignal amplification (e.g., EEG, EMG). |
| Input Offset Voltage | 20 µV typ - ensures <10 µV system-level offset error in 16-bit ADC front-ends with gain ≤ 500. |
| Output Drive | ±10 mA - drives 10 kΩ loads to rail with <250 mV headroom, supporting buffered reference distribution. |
| Shutdown Current | 16 nA per channel - reduces total system standby current below 100 nA in quad-channel shut-down configuration. |
| PSRR / CMRR | 106 dB PSRR, 80 dB CMRR - rejects noise from shared LDOs and common-mode interference in unshielded PCB layouts. |
Pinout & Package
TSSOP-16 package (4.4 mm × 5.0 mm, 0.65 mm pitch), thermally enhanced for continuous operation at 125°C ambient. Pin 1 marked by beveled edge or molded dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16 | 1/2SHDN, 3/4SHDN | Active-high shutdown controls for channels 1&2 and 3&4 - tie to VDD to enable, GND to disable. |
| 2, 5, 8, 11 | 1IN−, 2IN−, 3IN−, 4IN− | Inverting inputs - high-impedance CMOS nodes (10⁹ Ω) suitable for high-Z sensor bridges. |
| 3, 6, 9, 12 | 1IN+, 2IN+, 3IN+, 4IN+ | Non-inverting inputs - rail-to-rail common-mode range (0 V to VDD) enables ground-referenced signal acquisition. |
| 4, 7, 10, 13 | 1OUT, 2OUT, 3OUT, 4OUT | Rail-to-rail outputs - swing within 250 mV of VDD/GND at 2.5 mA, compatible with SAR ADC reference buffers. |
| 14 | GND | Analog ground reference - requires low-impedance connection to PCB ground plane for noise immunity. |
| 15 | VDD+ | Positive supply - accepts 2.7–6 V; decoupling capacitor (100 nF X7R) required within 5 mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full-scale signal swing in 3-V systems - eliminates level-shifting ICs and saves board space in compact wearables. |
| 23 µA/channel supply current | Reduces thermal load in sealed enclosures and extends battery runtime in portable diagnostic devices beyond 12 months. |
| Dedicated dual shutdown pins | Allows independent power gating of channel pairs - essential for adaptive power management in multi-sensor IoT nodes. |
| −40°C to 125°C operation | Qualified for under-hood automotive cabin sensors and industrial process controllers without derating. |
| 106 dB PSRR | Mitigates ripple from switching regulators feeding mixed-signal SoCs - maintains ADC accuracy without additional LDOs. |
Applications
| Portable ECG Monitor | Industrial Temperature Sensor Interface |
|---|---|
Use Scenario: Amplifying microvolt-level cardiac signals from dry electrodes in battery-powered handheld ECG units. IC Role / Device Role / Timing Role: Quad-channel instrumentation amplifier front-end with programmable gain and DC offset cancellation. Use Value: 20 µV offset and 23 µA/channel current enable >10-hour operation on 200 mAh LiPo while maintaining 12-bit effective resolution. |
Use Scenario: Conditioning output from PT100 RTD sensors in factory-floor temperature transmitters. IC Role / Device Role / Timing Role: Precision current-source excitation buffer and ratiometric signal amplifier driving 16-bit ΣΔ ADC. Use Value: Rail-to-rail output swing ensures full ADC code utilization across −40°C to 125°C operating range without external biasing. |
| Wearable Glucose Sensor Signal Chain | Low-Power Data Acquisition Module |
Use Scenario: Amplifying amperometric current from enzymatic glucose oxidase electrodes in continuous glucose monitors. IC Role / Device Role / Timing Role: Transimpedance amplifier with shutdown-controlled gain stages for dynamic range adaptation. Use Value: 16 nA shutdown current per channel allows background calibration cycles with <1 µA total system sleep current. |
Use Scenario: Multi-channel analog front-end for environmental sensor hubs logging temperature, humidity, and gas concentration. IC Role / Device Role / Timing Role: Quad-channel signal conditioner with multiplexed output to shared ADC, managed via shutdown sequencing. Use Value: Independent SHDN pins enable time-multiplexed channel activation - cutting average power by 75% versus always-on operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2455IPW | Same die, PW (TSSOP-16) package with identical pinout and specs; differs only in tape-and-reel packaging and RoHS compliance marking. | No functional difference - used interchangeably in production where reel-fed SMT assembly is required. | Select TLV2455IPW for automated pick-and-place; TLV2455AIN is preferred for manual prototyping or small-batch builds due to tray packaging. |
| OPA2333PWR | Zero-drift architecture (0.02 µV/°C drift vs. TLV2455AIN's 0.3 µV/°C); higher supply current (17 µA/ch vs. 23 µA/ch); no shutdown function. | Better long-term DC stability for precision weigh scales; unsuitable for battery-critical shutdown use cases. | Choose OPA2333PWR when offset drift dominates error budget; retain TLV2455AIN when shutdown capability and 125°C rating are mandatory. |
Compared with TLV2455IPW, TLV2455AIN offers identical electrical performance but differs in packaging format (tray vs. tape-and-reel), while OPA2333PWR trades shutdown functionality and extended temperature range for superior DC precision - making TLV2455AIN the optimal choice for industrial-grade, power-gated analog sensing.
Availability
TLV2455AIN is available at Aetrix Electronics and suitable for portable medical diagnostics, industrial sensor transmitters, and low-power data acquisition modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2455AIN 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 over 90 years of innovation in precision analog design and manufacturing excellence.
The TLV245x family was engineered specifically for micropower, rail-to-rail signal conditioning in battery-operated medical, industrial, and portable instrumentation - prioritizing ultra-low IDD, wide supply range, and robust operation across −40°C to 125°C.
FAQ
What is the operating temperature range for TLV2455AIN?
The TLV2455AIN is rated for −40°C to +125°C free-air temperature operation, validated across the full range for parameters including supply current, input offset voltage, and common-mode rejection ratio. This makes TLV2455AIN suitable for under-hood automotive sensors and industrial control cabinets without thermal derating.
Does TLV2455AIN support true rail-to-rail input and output?
Yes, TLV2455AIN supports rail-to-rail input (common-mode range from 0 V to VDD) and rail-to-rail output (swing within 250 mV of VDD and GND at 2.5 mA load). This capability is confirmed in the datasheet Figures 1–2 (input offset vs. VIC) and Figures 11–14 (output voltage vs. load current), enabling full dynamic range utilization in 3-V systems.
How does the shutdown feature work on TLV2455AIN?
TLV2455AIN has two dedicated shutdown pins: pin 1 (1/2SHDN) disables channels 1 and 2, and pin 16 (3/4SHDN) disables channels 3 and 4. Driving either pin low places the corresponding outputs in high-impedance state and reduces supply current to 16 nA per channel. This behavior is verified in datasheet Sections 6.5 and Figure 35–41.
What package type is TLV2455AIN supplied in?
TLV2455AIN is supplied in a 16-pin TSSOP (PW) package measuring 4.4 mm × 5.0 mm with 0.65 mm lead pitch. The "AIN" suffix explicitly denotes the TSSOP-16 variant with industrial temperature grade (−40°C to 125°C), distinct from PDIP or SOIC versions of the same family.
Can TLV2455AIN drive capacitive loads reliably?
Yes, TLV2455AIN maintains stability with capacitive loads up to 1000 pF, as confirmed by phase margin measurements (56° at CL = 1000 pF, RL = 10 kΩ) in datasheet Section 6.8 and Figure 24. For loads >100 pF, a series resistor (10–50 Ω) between output and capacitance is recommended to ensure monotonic step response.
TLV2455AIN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- 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:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
TLV2455AIN FAQ
1.How can I place an order for TLV2455AIN through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2455AIN 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 TLV2455AIN reliable?
The price and inventory of TLV2455AIN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2455AIN is usually 5 days.
3.What payment methods are accepted for TLV2455AIN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2455AIN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2455AIN?
TLV2455AIN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2455AIN 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 TLV2455AIN?
For technical support, including TLV2455AIN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2455AIN requirements.
6.How does Aetrix verify that TLV2455AIN is sourced from the original manufacturer or authorized distributors?
All TLV2455AIN 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 TLV2455AIN meets industry standards.
7.What is the process for return or replacement of TLV2455AIN?
All TLV2455AIN units undergo pre-shipment inspection (PSI). If there is an issue with TLV2455AIN, 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 TLV2455AIN part is unused and in its original packaging.
Return procedure for TLV2455AIN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2455AIN Tags
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