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Texas Instruments TLC252CPW
- Part No.:
- TLC252CPW
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC252CPW.pdf
- Description:
- IC CMOS 2 CIRCUIT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:775
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Product details
Overview
TLC252CPW from Texas Instruments is a LinCMOS™ dual operational amplifier optimized for low-power, single-supply operation across 1.4 V to 16 V. It delivers 10 mV max input offset voltage (VIO), 30 nV/√Hz input noise at 1 kHz, and rail-to-rail common-mode input range extending to the negative rail - enabling precision signal conditioning in battery-powered sensor interfaces and portable instrumentation.
For engineers reviewing the TLC252CPW datasheet, TLC252CPW pinout, TLC252CPW application, or TLC252CPW equivalent, this device is selected for ultra-low quiescent current (375 µA typ at 1.4 V), high input impedance (>10¹² Ω), and stable unity-gain operation - critical when designing energy-constrained analog front-ends with minimal supply headroom.
Technical Context
The TLC252CPW implements a silicon-gate LinCMOS™ process, delivering inherently low input bias currents (≤600 pA) and stable offset voltage over temperature (1–2 µV/°C). Its input stage supports true single-supply operation with common-mode voltage down to VDD–/GND, eliminating level-shifting requirements in low-voltage systems.
Internally protected against ESD up to 2000 V (MIL-STD-883C, Method 3015.1), the device features two independent amplifiers in an 8-pin TSSOP package, each with dedicated non-inverting/inverting inputs and output terminals - suitable for dual-channel buffering, differential amplification, or active filtering without cross-talk.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.4 V to 16 V - enables direct operation from single-cell Li-ion, alkaline, or solar sources without regulation. |
| Input Offset Voltage (VIO) | 10 mV max at 25°C - defines worst-case DC error in precision gain stages or sensor offset correction circuits. |
| Input Bias Current | 600 pA max at 70°C - preserves accuracy in high-impedance transducer interfaces (e.g., pH electrodes, piezoresistive sensors). |
| Input Noise Density | 30 nV/√Hz typ at 1 kHz - limits achievable SNR in low-frequency signal amplification below 10 kHz. |
| Unity-Gain Bandwidth | 1.7 MHz typ at VDD = 5 V - supports stable closed-loop operation up to ~100 kHz with moderate gain. |
| Common-Mode Input Range | Includes negative rail (VDD–/GND) - allows direct sensing of signals referenced to ground in single-supply systems. |
| Quiescent Supply Current | 375 µA typ at VDD = 1.4 V - extends battery life in always-on monitoring nodes (e.g., IoT edge sensors). |
Pinout & Package
Package: 8-pin TSSOP (PW), 3.0 mm × 4.4 mm body, 0.65 mm pitch, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Amplifier 1 output | Drives load directly; limited to ±15 mA short-circuit current per datasheet absolute ratings. |
| 2 (IN–1) | Amplifier 1 inverting input | High-impedance node (≥10¹² Ω); sensitive to PCB leakage and guarding requirements. |
| 3 (IN+1) | Amplifier 1 non-inverting input | Accepts signals down to VDD–/GND; no level-shifting needed for ground-referenced sources. |
| 4 (VDD–/GND) | Negative supply / ground reference | Return path for both amplifiers; must be low-impedance to minimize PSRR degradation. |
| 5 (VDD) | Positive supply | Supports 1.4–16 V; bypass capacitor (0.1 µF) required near pin for stability at higher gains. |
| 6 (OUT2) | Amplifier 2 output | Independent output; not internally connected to OUT1 - enables dual-channel isolation. |
| 7 (IN–2) | Amplifier 2 inverting input | Electrically isolated from IN–1; allows separate feedback networks per channel. |
| 8 (IN+2) | Amplifier 2 non-inverting input | Matches IN+1 specs; supports dual-sensor or differential pair configurations. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Operates with inputs at VDD–/GND, eliminating need for external biasing in single-supply designs. |
| Ultra-low power consumption | 375 µA typical supply current at 1.4 V enables multi-year battery life in remote sensor nodes. |
| ESD protection | Withstands 2000 V HBM per MIL-STD-883C - reduces handling sensitivity during PCB assembly. |
| Stable unity-gain operation | No external compensation required; supports gain ≥1 configurations without oscillation. |
| LinCMOS™ process technology | Delivers picoampere-level input bias currents and low drift - critical for high-impedance source interfacing. |
Applications
| Portable Medical Sensors | Industrial Process Monitoring |
|---|---|
Use Scenario: Amplifying microvolt-level ECG or EEG signals from dry electrodes in wearable health monitors. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end with one op-amp for differential gain and the other for right-leg drive (RLD) feedback. Use Value: 10 mV VIO and rail-to-rail input allow accurate baseline recovery without DC blocking capacitors, reducing component count and board space. | Use Scenario: Signal conditioning for 4–20 mA loop-powered temperature transmitters in factory automation. IC Role / Device Role / Timing Role: Low-power I/V converter and buffer driving ADC input in isolated analog input modules. Use Value: 1.4 V minimum supply enables operation directly from loop voltage with margin, while 600 pA bias current prevents loading of high-Z RTD bridge sensors. |
| Battery-Powered Data Loggers | Solar-Powered Environmental Stations |
Use Scenario: Multi-channel analog acquisition of thermistor, humidity, and light sensor outputs in field-deployed loggers. IC Role / Device Role / Timing Role: Dual op-amp used for sensor excitation (constant-current source) and signal buffering prior to multiplexed ADC sampling. Use Value: 375 µA quiescent current per amplifier extends 10-year battery life in intermittent-sampling deployments. | Use Scenario: Signal conditioning for photodiode and thermopile sensors in off-grid weather stations powered by small solar panels. IC Role / Device Role / Timing Role: Low-noise preamplifier for weak photocurrent signals, operating directly from unregulated 2–5 V solar harvest voltage. Use Value: 30 nV/√Hz noise density and 1.4 V operation enable usable SNR even under low-light conditions without LDO overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC27L2CPW | Lower VIO (5 mV max), lower IDD (24 µA typ at 5 V), but reduced bandwidth (85 kHz B1) and higher noise (68 nV/√Hz). | Better for ultra-low-power, DC-critical applications (e.g., precision thermistor readout); unsuitable for >10 kHz signal paths. | Select TLC27L2CPW when VIO < 5 mV and supply current < 50 µA are mandatory, accepting bandwidth trade-off. |
| TLV2462IPW | Higher performance: 0.6 mV VIO, 6.4 MHz B1, 22 nV/√Hz noise, but requires ≥2.7 V supply and draws 550 µA. | Enables higher-speed, higher-accuracy signal chains (e.g., audio preamps, fast sensor sampling); incompatible with sub-2.7 V batteries. | Choose TLV2462IPW when supply ≥2.7 V is guaranteed and sub-mV offset + MHz bandwidth justify higher power. |
Compared with TLC252CPW, TLC27L2CPW trades bandwidth and noise for lower power and tighter offset, while TLV2462IPW delivers superior AC performance and precision at the cost of minimum supply voltage and quiescent current - making TLC252CPW the optimal balance for 1.4–5 V battery-operated systems requiring robust DC accuracy and moderate speed.
Availability
TLC252CPW is available at Aetrix Electronics and suitable for portable medical sensors, industrial process monitoring, and battery-powered data loggers requiring stable component supply across extended production lifecycles.
Supply support for TLC252CPW 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 solutions, with decades of expertise in precision op-amps and low-power design.
The TLC25x series was engineered for cost-sensitive, energy-constrained applications demanding rail-to-rail input operation, ultra-low supply current, and stable DC performance - particularly in battery-powered instrumentation and sensor signal chains.
FAQ
What is the maximum supply voltage rating for the TLC252CPW?
The TLC252CPW has an absolute maximum supply voltage (VDD) rating of 18 V, as specified in the Absolute Maximum Ratings table. However, its recommended operating range is 1.4 V to 16 V. Operating above 16 V may compromise long-term reliability or parametric performance, and thermal dissipation must remain within the 336 mW limit at 70°C ambient for the PW package.
Does the TLC252CPW support true single-supply operation with inputs at ground potential?
Yes, the TLC252CPW supports true single-supply operation with its common-mode input voltage range extending to the negative rail (VDD–/GND). At VDD = 5 V, the input range is –0.2 V to 4 V, allowing direct connection of ground-referenced sensors without external biasing - a key enabler for simplified single-supply system design.
What is the typical input offset voltage for the TLC252CPW, and how does it vary with temperature?
The TLC252CPW has a maximum input offset voltage (VIO) of 10 mV at 25°C, with a typical value of 1.1 mV. Its average temperature coefficient (αVIO) is 1–2 µV/°C across 25°C to 70°C, meaning VIO drift is typically ≤10 µV over that range - critical for maintaining DC accuracy in uncalibrated industrial sensor interfaces.
Can the TLC252CPW drive capacitive loads without instability?
The TLC252CPW is unity-gain stable with capacitive loads up to 20 pF when using appropriate layout practices (short traces, local bypassing). For larger loads (e.g., >50 pF), external isolation resistance (e.g., 100 Ω in series with the output) is recommended to maintain phase margin ≥40°, as confirmed by datasheet Bode plots and phase margin measurements at 1.7 MHz.
Is the TLC252CPW pin-compatible with other devices in the TLC25x family?
Yes, all TLC25x dual op-amps - including TLC252CPW, TLC25L2CPW, and TLC25M2CPW - share identical 8-pin TSSOP (PW) pinouts and footprints. This allows direct substitution based on performance tier (low-power, low-noise, or medium-speed) without PCB redesign, provided supply and signal constraints align with the selected variant's specifications.
TLC252CPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 2.9V/µs
- Gain Bandwidth Product:
- 2.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.6 pA
- Voltage - Input Offset:
- 1.1 mV
- Current - Supply:
- 1.9mA (x2 Channels)
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 1.4 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
TLC252CPW FAQ
1.How can I place an order for TLC252CPW through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC252CPW 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 TLC252CPW reliable?
The price and inventory of TLC252CPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC252CPW is usually 5 days.
3.What payment methods are accepted for TLC252CPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC252CPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC252CPW?
TLC252CPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC252CPW 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 TLC252CPW?
For technical support, including TLC252CPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC252CPW requirements.
6.How does Aetrix verify that TLC252CPW is sourced from the original manufacturer or authorized distributors?
All TLC252CPW 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 TLC252CPW meets industry standards.
7.What is the process for return or replacement of TLC252CPW?
All TLC252CPW units undergo pre-shipment inspection (PSI). If there is an issue with TLC252CPW, 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 TLC252CPW part is unused and in its original packaging.
Return procedure for TLC252CPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC252CPW Tags
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