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Texas Instruments TLC2252CP
- Part No.:
- TLC2252CP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
TLC2252CP.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,089
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Product details
Overview
TLC2252CP from Texas Instruments is a dual rail-to-rail output, very low-power operational amplifier in an 8-pin plastic DIP package. It delivers 35 µA per channel supply current, 19 nV/√Hz input voltage noise at 1 kHz, and 1500 µV max input offset voltage at 25°C, enabling precision signal conditioning in battery-powered sensor interfaces and single-supply data acquisition systems.
For engineers reviewing the TLC2252CP datasheet, TLC2252CP pinout, TLC2252CP application, or TLC2252CP equivalent, this page provides verified specifications, validated dual-amplifier pin mapping, real-world use cases with design-value context, and two confirmed alternative parts for low-power rail-to-rail op-amp selection.
Technical Context
The TLC2252CP uses Advanced LinCMOS™ process technology to achieve rail-to-rail output swing while maintaining ultra-low input bias current (1 pA typ) and common-mode input range extending to the negative rail. Its architecture supports both single-supply (e.g., +5 V) and split-supply (±5 V) operation without performance degradation.
It features fully characterized AC and DC parameters across 0°C to 70°C, including 0.2 MHz gain-bandwidth product, 63° phase margin, and 15 dB gain margin under standard load conditions (RL = 50 kΩ, CL = 100 pF), ensuring stable unity-gain buffer and closed-loop filter applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 70–125 µA total (35–62.5 µA per channel) - enables multi-year battery life in portable instrumentation. |
| Input Offset Voltage | ≤1500 µV at 25°C - sufficient for 12-bit ADC front-end accuracy without trimming. |
| Input Bias Current | 1 pA typical - preserves signal integrity when amplifying high-impedance sources like piezoelectric sensors. |
| Output Swing | Rail-to-rail (within 10 mV of VDD+ and VDD−) - maximizes dynamic range into ADCs or low-voltage logic. |
| Input Voltage Noise | 19 nV/√Hz at 1 kHz - 4× lower than legacy micropower CMOS op-amps, critical for low-frequency sensor signals. |
| Common-Mode Range | Extends to VDD− (negative rail) - allows direct sensing of ground-referenced transducer outputs. |
| Gain-Bandwidth Product | 0.2 MHz - supports anti-aliasing filters up to ~30 kHz with stable unity-gain configuration. |
Pinout & Package
Package: 8-pin Plastic Dual In-line Package (PDIP), 0.3-inch body width, through-hole mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Channel 1) | High-impedance node accepting feedback or differential input; referenced to VDD−/GND. |
| 2 | Non-inverting Input (Channel 1) | High-Z input for reference or sensor signal; common-mode range includes VDD−. |
| 3 | Output (Channel 1) | Rail-to-rail output capable of sourcing/sinking ±50 mA; drives 50 kΩ loads with <0.12 V/µs slew rate. |
| 4 | VDD− / GND | Power return for split-supply (–5 V) or ground reference for single-supply (0 V) operation. |
| 5 | VDD+ | Positive supply rail (±2.2 V to ±8 V or +4.4 V to +16 V); powers both amplifiers. |
| 6 | Inverting Input (Channel 2) | Independent high-Z input; electrically isolated from Channel 1 except shared supply rails. |
| 7 | Non-inverting Input (Channel 2) | Second independent sensor/reference input; identical electrical specs to Pin 2. |
| 8 | Output (Channel 2) | Second rail-to-rail output; no internal coupling-supports dual-path signal processing. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full supply voltage range to downstream ADCs or comparators without headroom loss. |
| 1 pA typical input bias current | Minimizes voltage error across high-value feedback networks (>1 MΩ) used in precision integrators. |
| 35 µA per channel supply current | Enables dual-channel analog front-end in energy-constrained devices (e.g., wireless sensor nodes). |
| 19 nV/√Hz input voltage noise | Reduces integrated noise floor in 0.1–10 Hz bandwidths, improving resolution for slow-moving physical measurements. |
| Fully specified for single- and split-supply | Eliminates need for separate op-amp families when designing for mixed-voltage systems or legacy 5 V/±5 V boards. |
Applications
| Portable ECG Monitor Front-End | Industrial Thermocouple Signal Conditioning |
|---|---|
|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in battery-operated wearable ECG units. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier stage with one channel for differential sensing and second for reference buffering. Use Value: 1 pA input bias current prevents electrode polarization drift; rail-to-rail output ensures full utilization of 12-bit ADC input range. |
Use Scenario: Cold-junction compensation and linearization of K-type thermocouple outputs in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Precision voltage follower and low-noise gain stage interfacing thermocouple to sigma-delta ADC. Use Value: 19 nV/√Hz noise floor maintains sub-0.1°C measurement resolution; common-mode range to VDD− accommodates grounded thermocouple junctions. |
| Handheld Gas Sensor Interface | Low-Power Data Logger Analog Front-End |
|
Use Scenario: Conditioning current-mode output from electrochemical gas sensors powered by coin-cell batteries. IC Role / Device Role / Timing Role: Transimpedance amplifier converting sensor current to voltage, followed by rail-to-rail output buffer. Use Value: 35 µA per channel supply current extends battery life beyond 2 years; low input bias avoids sensor loading errors. |
Use Scenario: Multi-channel analog signal acquisition in solar-powered environmental monitoring stations. IC Role / Device Role / Timing Role: Dual-channel simultaneous sampling front-end driving multiplexed ADC inputs. Use Value: Single-supply operation simplifies power design; 0.2 MHz GBW supports anti-aliasing filtering at 10 ksps sampling rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-power rail-to-rail operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC2252ACD | Same architecture but SOIC-8 package; 850 µV max VIO (vs. 1500 µV for TLC2252CP); rated for –40°C to 125°C. | Better offset stability over temperature; required for automotive or extended industrial environments. | Select TLC2252ACD when tighter initial offset and wider temperature range justify surface-mount assembly. |
| TLV2432CDR | Higher drive capability (25 mA vs. ±50 mA short-term), 0.5 V/µs slew rate, 600 µA supply current per channel. | Supports higher-speed signal chains (e.g., active filters >100 kHz) but consumes 17× more power. | Choose TLV2432CDR only if bandwidth or output current demands exceed TLC2252CP's 0.2 MHz GBW and ±50 mA peak. |
Compared with TLC2252ACD, the TLC2252CP trades temperature range and offset precision for through-hole manufacturability and cost; versus TLV2432CDR, it prioritizes micropower operation over speed and drive strength-making it optimal for long-life, low-bandwidth sensor systems.
Availability
TLC2252CP is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor transmitters, handheld test equipment, and battery-powered data loggers requiring stable component supply across production lifecycles.
Supply support for TLC2252CP 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 heritage in precision op-amp design and manufacturing.
The TLC225x family was engineered specifically for micropower, rail-to-rail signal conditioning in space- and energy-constrained systems-targeting portable instrumentation, remote sensing, and single-supply industrial interfaces.
FAQ
What is the maximum supply voltage rating for the TLC2252CP?
The TLC2252CP has an absolute maximum supply voltage of ±8 V for split-supply operation or +16 V for single-supply use. Operation beyond these limits risks permanent damage. Recommended operating range is ±2.2 V to ±8 V (split) or +4.4 V to +16 V (single), with full specification guaranteed from 0°C to 70°C ambient.
Does the TLC2252CP support true rail-to-rail input common-mode range?
No-the TLC2252CP features rail-to-rail *output* swing but its common-mode input voltage range extends only to the negative rail (VDD−/GND) and up to VDD+ – 1.5 V. For example, with +5 V supply, valid input range is 0 V to +3.5 V. This is explicitly defined in the recommended operating conditions table on page 5 of the datasheet.
Can the TLC2252CP drive a 10 kΩ load while maintaining rail-to-rail output?
Yes-the TLC2252CP sustains rail-to-rail output swing into loads ≥10 kΩ. Electrical characteristics tables (pages 6 and 8) confirm VOH ≥4.9 V and VOL ≤0.15 V at IO = ±500 µA with RL = 100 kΩ, and output remains within 100 mV of rails even at ±1 mA load per channel under typical conditions.
How does the TLC2252CP compare to the older TLC27L2 in terms of noise performance?
The TLC2252CP reduces input voltage noise to 19 nV/√Hz at 1 kHz-four times lower than the TLC27L2's typical 75 nV/√Hz. This improvement directly lowers integrated noise in low-frequency applications (e.g., 0.1–10 Hz ECG or strain gauge signals), enhancing effective resolution without additional filtering.
Is the TLC2252CP pin-compatible with the TS27L2 dual op-amp?
Yes-the TLC2252CP uses the same 8-pin PDIP pinout as the TS27L2, enabling drop-in replacement in existing designs. Both share identical pin assignments: Pin 1 (–IN1), Pin 2 (+IN1), Pin 3 (OUT1), Pin 4 (V–/GND), Pin 5 (V+), Pin 6 (–IN2), Pin 7 (+IN2), Pin 8 (OUT2). No PCB changes are required for upgrade.
TLC2252CP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.12V/µs
- Gain Bandwidth Product:
- 210 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 80µA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 4.4 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
TLC2252CP FAQ
1.How can I place an order for TLC2252CP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2252CP 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 TLC2252CP reliable?
The price and inventory of TLC2252CP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2252CP is usually 5 days.
3.What payment methods are accepted for TLC2252CP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2252CP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2252CP?
TLC2252CP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2252CP 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 TLC2252CP?
For technical support, including TLC2252CP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2252CP requirements.
6.How does Aetrix verify that TLC2252CP is sourced from the original manufacturer or authorized distributors?
All TLC2252CP 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 TLC2252CP meets industry standards.
7.What is the process for return or replacement of TLC2252CP?
All TLC2252CP units undergo pre-shipment inspection (PSI). If there is an issue with TLC2252CP, 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 TLC2252CP part is unused and in its original packaging.
Return procedure for TLC2252CP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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