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Texas Instruments TLC2252CDR
- Part No.:
- TLC2252CDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2252CDR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,918
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Product details
Overview
TLC2252CDR from Texas Instruments is a dual rail-to-rail output, very low-power operational amplifier in an 8-pin SOIC package. It delivers 35 µA per channel supply current, 19 nV/√Hz input voltage noise at 1 kHz, and rail-to-rail output swing (±4.8 V at ±5 V supplies), making it ideal for battery-powered sensor signal conditioning and precision analog front-ends interfacing with ADCs.
For engineers reviewing the TLC2252CDR datasheet, TLC2252CDR pinout, TLC2252CDR application, or TLC2252CDR equivalent, key selection criteria include its 1 pA typical input bias current, 1500 µV max input offset voltage at 25°C, common-mode input range extending to the negative rail, and full specification across 0°C to 70°C for single- or split-supply operation.
Technical Context
The TLC2252CDR uses Advanced LinCMOS™ process technology to achieve micropower operation without sacrificing input impedance or noise performance. Its rail-to-rail output stage enables maximum dynamic range in low-voltage systems, while the input stage supports common-mode voltages down to the negative supply rail - critical for single-supply transducer interfaces.
It features fully characterized AC and DC performance at both 5 V single-supply and ±5 V split-supply conditions, with guaranteed specifications for large-signal voltage gain (≥100 V/mV), CMRR (≥70 dB), and phase margin (63°) under standard load and capacitance conditions.
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 Bias Current | 1 pA typ - preserves signal integrity when amplifying high-impedance sources like piezoelectric sensors. |
| Input Offset Voltage | 1500 µV max at 25°C - suitable for medium-precision DC-coupled applications without trimming. |
| Output Swing | Within 200 mV of both rails at ±5 V - maximizes usable ADC input range and dynamic headroom. |
| Input Voltage Noise | 19 nV/√Hz at 1 kHz - 4× lower than legacy micropower CMOS op-amps, improving SNR in low-frequency sensing. |
| Common-Mode Range | Extends to VDD– (negative rail) - allows direct interface with ground-referenced transducers in single-supply designs. |
| Gain-Bandwidth Product | 0.2 MHz - supports stable unity-gain buffering and low-frequency filtering up to ~200 kHz. |
Pinout & Package
Package: 8-pin SOIC (D package), tape-and-reel (R suffix), RoHS-compliant, rated for 0°C to 70°C operating temperature.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Channel 1) | Differential input node for first op-amp; high-impedance (10¹² Ω) CMOS input. |
| 2 | Non-Inverting Input (Channel 1) | Reference input for Channel 1; supports common-mode voltage down to VDD–. |
| 3 | Output (Channel 1) | Rail-to-rail output capable of sourcing/sinking ±50 mA; swings within 200 mV of supply rails. |
| 4 | VDD– / GND | Negative supply or ground reference; common return for both amplifiers and bias circuitry. |
| 5 | VDD+ | Positive supply input; operates from ±2.2 V to ±8 V or 4.4 V to 16 V single-supply. |
| 6 | Inverting Input (Channel 2) | Second amplifier's inverting input; electrically isolated and matched to Pin 1. |
| 7 | Non-Inverting Input (Channel 2) | Second amplifier's non-inverting input; identical electrical characteristics to Pin 2. |
| 8 | Output (Channel 2) | Independent rail-to-rail output; no internal crosstalk; supports separate feedback networks. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Enables full-scale signal utilization in low-voltage (e.g., 3.3 V or 5 V) data acquisition systems. |
| Very low input bias current | 1 pA typical ensures minimal loading error on high-Z sources such as pH electrodes or photodiode transimpedance nodes. |
| Low input voltage noise | 19 nV/√Hz at 1 kHz improves resolution in sub-100 Hz sensor signal chains without external filtering. |
| Single- and split-supply operation | Fully specified from 0°C to 70°C under both 5 V and ±5 V conditions - simplifies design reuse across architectures. |
| Macromodel included | SPICE model provided by TI enables accurate closed-loop stability and transient simulation prior to prototyping. |
Applications
| Portable ECG Front-End | Industrial Temperature Sensor Interface |
|---|---|
Use Scenario: Amplifying microvolt-level biopotential signals from dry electrodes in battery-powered wearable monitors. IC Role / Device Role / Timing Role: Dual-channel DC-coupled instrumentation amplifier stage (gain = 100) with rail-to-rail output driving 12-bit SAR ADC. Use Value: 1 pA input bias current prevents electrode polarization drift; 35 µA/channel supply current extends battery life beyond 12 months. | Use Scenario: Conditioning output from platinum RTD (PT100) bridges in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Low-drift, low-noise buffer and excitation current sink in 4-wire RTD measurement circuit. Use Value: Common-mode input range to VDD– allows direct connection to grounded bridge; 1500 µV VIO max avoids calibration overhead in 0.1°C accuracy systems. |
| Handheld Gas Detector Signal Chain | Low-Power Data Logger Analog Front-End |
Use Scenario: Amplifying nanoamp-level current from electrochemical gas sensors powered by coin-cell batteries. IC Role / Device Role / Timing Role: Transimpedance amplifier (TIA) with 10 MΩ feedback resistor and rail-to-rail output into anti-aliasing filter. Use Value: Ultra-low input bias current minimizes TIA offset error; 19 nV/√Hz noise preserves detection limit below 1 ppm CO. | Use Scenario: Multiplexed analog signal conditioning for thermocouples, strain gauges, and humidity sensors in solar-powered environmental loggers. IC Role / Device Role / Timing Role: Dual-channel programmable-gain amplifier (PGA) with shutdown control synchronized to ADC sampling. Use Value: 35 µA/channel quiescent current enables >5-year field deployment; rail-to-rail output ensures full ADC code utilization across varying sensor spans. |
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 |
|---|---|---|---|
| MCP6022-I/SN | Higher supply current (100 µA/channel), lower VIO (250 µV max), same SOIC-8 package. | Better DC precision but higher power; less suitable for ultra-long-life battery systems. | Select when offset drift and long-term stability outweigh micropower requirements. |
| TLV2432IDR | Higher output drive (60 mA), wider input voltage range (to VDD+ – 0.1 V), 100 µA/channel supply current. | Superior for driving capacitive loads or interfacing with wide-VDD ADCs; not optimized for <50 µA/channel systems. | Choose when interfacing with SAR ADCs requiring fast settling or driving >1000 pF traces. |
Compared with MCP6022-I/SN and TLV2432IDR, the TLC2252CDR offers the lowest quiescent current in its class while maintaining rail-to-rail output and sub-pA input bias - making it uniquely suited for energy-constrained, high-impedance sensor nodes where precision is secondary to longevity.
Availability
TLC2252CDR 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 extended production lifecycles.
Supply support for TLC2252CDR 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 ICs.
The TLC225x family was designed specifically for micropower, rail-to-rail signal conditioning in battery-operated and space-constrained systems - emphasizing ultra-low IIB, low noise, and robust single-supply operation.
FAQ
What is the maximum operating supply voltage for the TLC2252CDR?
The TLC2252CDR supports a maximum supply voltage of ±8 V for split-supply operation or 16 V for single-supply configurations. Absolute maximum ratings specify VDD+ ≤ 8 V and VDD– ≥ –8 V relative to midpoint; exceeding these limits risks permanent device damage. Recommended operating range is ±2.2 V to ±8 V or 4.4 V to 16 V, with full characterization at ±5 V and 5 V.
Does the TLC2252CDR support true rail-to-rail input capability?
No - the TLC2252CDR features rail-to-rail *output* swing but only extends its common-mode input voltage range to the negative rail (VDD–). The positive end is limited to VDD+ – 1.5 V under recommended conditions. This architecture enables excellent performance with ground-referenced sensors while retaining CMOS input benefits like ultra-low bias current.
Can the TLC2252CDR drive capacitive loads directly?
The TLC2252CDR is stable with capacitive loads up to 100 pF when configured for unity gain, as verified by 63° phase margin measurements. For larger loads (e.g., ADC input capacitors >200 pF), external isolation resistance (≥100 Ω) or gain ≥ 2 is required to maintain stability. Always verify loop response using the provided macromodel in SPICE simulations before layout.
How does the input offset voltage of the TLC2252CDR compare to the TLC2252ACDR variant?
The TLC2252CDR has a maximum input offset voltage of 1500 µV at 25°C, whereas the TLC2252ACDR (A-grade) is specified at 850 µV max under identical conditions. Both share the same package, pinout, and temperature range (0°C to 70°C), but the A-grade version undergoes tighter factory screening for lower VIO - critical for DC-coupled applications demanding higher initial accuracy.
Is the TLC2252CDR suitable for automotive applications?
The TLC2252CDR is not qualified for automotive use; it is rated for commercial temperature range (0°C to 70°C) only. For automotive applications, TI offers the TLC2252QDR (Q-grade, –40°C to 125°C) and TLC2252AQDR (A-grade Q-version), both qualified to AEC-Q100 standards and featuring enhanced reliability testing, configuration control, and extended temperature validation.
TLC2252CDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLC2252CDR FAQ
1.How can I place an order for TLC2252CDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2252CDR 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 TLC2252CDR reliable?
The price and inventory of TLC2252CDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2252CDR is usually 5 days.
3.What payment methods are accepted for TLC2252CDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2252CDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2252CDR?
TLC2252CDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2252CDR 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 TLC2252CDR?
For technical support, including TLC2252CDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2252CDR requirements.
6.How does Aetrix verify that TLC2252CDR is sourced from the original manufacturer or authorized distributors?
All TLC2252CDR 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 TLC2252CDR meets industry standards.
7.What is the process for return or replacement of TLC2252CDR?
All TLC2252CDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC2252CDR, 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 TLC2252CDR part is unused and in its original packaging.
Return procedure for TLC2252CDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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