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Texas Instruments TLV2455CD
- Part No.:
- TLV2455CD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2455CD.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:9,541
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Product details
Overview
TLV2455CD 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 TLV2455CD datasheet, TLV2455CD pinout, TLV2455CD application, or TLV2455CD equivalent, key selection criteria include its shutdown capability (16 nA/channel), rail-to-rail swing at 3 V, guaranteed performance across −40°C to 125°C, and TSSOP-16 packaging for space-constrained analog signal chains.
Technical Context
The TLV2455CD 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). Its internal architecture supports stable unity-gain operation with 56° phase margin into 1000 pF capacitive loads.
Shutdown control is active-low on dedicated SHDN pins (pins 1/2SHDN and 3/4SHDN), placing outputs in high-impedance state and reducing quiescent current to 16 nA per channel - critical for intermittent-sampling architectures in portable instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 6 V - enables direct operation from single-cell Li-ion or two-cell alkaline batteries. |
| Gain-Bandwidth Product | 220 kHz - supports stable DC-coupled amplification and low-frequency sensor signal conditioning up to ~20 kHz. |
| Supply Current per Channel | 23 µA - allows 4-channel operation under 100 µA total, extending battery life in always-on monitoring devices. |
| Output Drive Capability | ±10 mA - drives 500 Ω loads directly without external buffers in transducer interface circuits. |
| Rail-to-Rail I/O | Input range: 0 V to VDD; Output swing: within 250 mV of rails at 2.5 mA - maximizes dynamic range in 3 V systems. |
| Shutdown Current | 16 nA per channel - reduces system standby power by >99.9% versus active mode, ideal for duty-cycled ADC front-ends. |
| Input Offset Voltage | 20 µV (typ) - minimizes DC error in precision bridge amplifier and thermocouple cold-junction compensation. |
Pinout & Package
TSSOP-16 package with 0.65 mm pitch, 5.0 mm × 4.4 mm body, and exposed thermal pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 8 | 1/2SHDN, 3/4SHDN | Active-low shutdown control inputs for channels 1&2 and 3&4 - tie to VDD for normal operation. |
| 2, 3, 5, 6, 9, 10, 12, 13 | 1IN−, 1IN+, 2IN+, 2IN−, 3IN+, 3IN−, 4IN−, 4IN+ | Differential input terminals for four independent op-amps - support single-ended or differential sensing. |
| 4, 7, 11, 14 | 1OUT, 2OUT, 3OUT, 4OUT | Amplifier output nodes - each capable of sourcing/sinking ±10 mA while maintaining rail-to-rail swing. |
| 15 | GND | Analog ground reference - requires low-impedance connection to PCB ground plane for noise immunity. |
| 16 | VDD+ | Positive supply rail - decoupling capacitor (0.1 µF ceramic) required within 5 mm of pin for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables full utilization of 3 V supply range in single-supply data acquisition, eliminating level-shifting circuitry. |
| Ultralow 23 µA/channel supply current | Permits integration of four precision amplifiers in energy-harvesting or coin-cell-powered IoT edge nodes. |
| Dedicated dual shutdown controls | Allows independent power gating of amplifier pairs - e.g., keep channel 1–2 active for bias generation while shutting down 3–4 during sleep. |
| Guaranteed operation from −40°C to 125°C | Supports deployment in automotive cabin sensors and industrial process controllers without derating. |
| 220 kHz GBW with 0.11 V/µs slew rate | Provides adequate bandwidth for ECG, pulse oximetry, and strain gauge signals while maintaining low noise (52 nV/√Hz). |
Applications
| Portable Patient Monitoring | Low-Power Data Acquisition |
|---|---|
Use Scenario: Amplifying weak bio-potential signals (ECG, EMG) from dry electrodes in wearable patches. IC Role / Device Role / Timing Role: Quad-channel instrumentation front-end providing gain, filtering, and rail-to-rail buffering before 12-bit SAR ADC sampling. Use Value: 23 µA/channel current and shutdown capability extend single-CR2032 battery life beyond 6 months in intermittent-read mode. | Use Scenario: Conditioning outputs from multiple MEMS pressure and temperature sensors in smart HVAC controllers. IC Role / Device Role / Timing Role: Four independent sensor signal conditioners with matched DC performance across channels. Use Value: 20 µV typical VIO and 0.3 µV/°C drift ensure <0.1% full-scale error over industrial temperature range without calibration. |
| Medical Sensor Interface | Battery-Powered Test Equipment |
Use Scenario: Interfacing resistive glucose strip readers and optical pulse oximeter photodiode transimpedance stages. IC Role / Device Role / Timing Role: Dual-channel transimpedance amplifier + dual-channel reference buffer in compact diagnostic handheld. Use Value: ±10 mA output drive directly sources LED bias current and drives ADC reference inputs without discrete components. | Use Scenario: Signal conditioning in handheld multimeters and portable oscilloscope front-ends. IC Role / Device Role / Timing Role: Quad op-amp providing programmable gain, offset correction, and anti-alias filtering. Use Value: TSSOP-16 footprint allows four precision amps in <120 mm² PCB area - critical for pocket-sized test gear. |
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 |
|---|---|---|---|
| TLV2465CD | Higher supply current (550 µA/ch), 6.4 MHz GBW, no shutdown - optimized for speed over power. | Suitable for higher-bandwidth sensor interfaces (e.g., ultrasonic flow meters) where 23 µA constraint is relaxed. | Select TLV2465CD only when >10× bandwidth is required and battery life is secondary to signal fidelity. |
| LPV821QDGKR | Lower supply current (650 nA/ch), 10 kHz GBW, single-channel - ultra-low-power but lower performance. | Fits sub-µA always-on wake-up circuits but cannot replace TLV2455CD's 220 kHz or quad-channel density. | Choose LPV821QDGKR for nanowatt standby monitoring; TLV2455CD remains optimal for active-sensing multi-channel systems. |
Compared with TLV2455CD, TLV2465CD trades 24× higher power for 29× more bandwidth and no power management, while LPV821QDGKR reduces current by 35× but sacrifices 22× bandwidth and channel count - making TLV2455CD the balanced choice for portable precision analog systems requiring both efficiency and capability.
Availability
TLV2455CD is available at Aetrix Electronics and suitable for portable medical equipment, battery-powered data loggers, and industrial sensor nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2455CD 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 analog 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 the TLV2455CD?
The TLV2455CD is rated for operation from 0°C to 70°C (C-suffix grade). This commercial temperature range is validated per TI's SLOS218F datasheet and applies to all electrical specifications unless otherwise noted. For extended-range alternatives, consider TLV2455ID (−40°C to 125°C) or TLV2455AID (−40°C to 125°C, enhanced VIO).
Does the TLV2455CD support true rail-to-rail output swing under load?
Yes, the TLV2455CD delivers rail-to-rail output swing within 250 mV of each supply rail while sourcing or sinking 2.5 mA - confirmed in the datasheet's "Output Drive Capability" section and Figure 11–14. At lighter loads (<1 mA), swing improves to within 50 mV of rails, enabling full dynamic range utilization in 3 V data acquisition systems.
How does shutdown functionality work on the TLV2455CD?
The TLV2455CD features two independent active-low shutdown pins: pin 1 (1/2SHDN) controls channels 1 and 2, and pin 8 (3/4SHDN) controls channels 3 and 4. Pulling either pin below 0.8 V (at VDD = 5 V) places the corresponding amplifier pair's output in high-impedance state and reduces supply current to 16 nA per channel - verified in the "Supply Current in Shutdown Mode" specification table.
What package type is used for the TLV2455CD?
The TLV2455CD is supplied in a 16-pin TSSOP (PW) package with 0.65 mm lead pitch, 5.0 mm × 4.4 mm body dimensions, and a thermal pad (non-connected). This package is explicitly listed in the "TLV2454 and TLV2455 AVAILABLE OPTIONS" table of the SLOS218F datasheet and supports automated SMT assembly.
Can the TLV2455CD drive capacitive loads without instability?
The TLV2455CD maintains stability into ≥1000 pF capacitive loads, as demonstrated by 56° phase margin in Figure 24 of the datasheet. For loads >100 pF, TI recommends adding a small series resistor (10–50 Ω) between output and capacitance to isolate the op-amp's output stage - a standard practice confirmed in the "Capacitive Load Driving" application note SLOA059.
TLV2455CD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm 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-SOIC
TLV2455CD FAQ
1.How can I place an order for TLV2455CD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2455CD 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 TLV2455CD reliable?
The price and inventory of TLV2455CD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2455CD is usually 5 days.
3.What payment methods are accepted for TLV2455CD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2455CD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2455CD?
TLV2455CD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2455CD 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 TLV2455CD?
For technical support, including TLV2455CD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2455CD requirements.
6.How does Aetrix verify that TLV2455CD is sourced from the original manufacturer or authorized distributors?
All TLV2455CD 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 TLV2455CD meets industry standards.
7.What is the process for return or replacement of TLV2455CD?
All TLV2455CD units undergo pre-shipment inspection (PSI). If there is an issue with TLV2455CD, 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 TLV2455CD part is unused and in its original packaging.
Return procedure for TLV2455CD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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