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Texas Instruments TLC2252QDR
- Part No.:
- TLC2252QDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2252QDR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,389
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Product details
Overview
TLC2252QDR 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 1 pA typical input bias current, enabling precision signal conditioning in battery-powered sensor interfaces and automotive-grade monitoring systems.
For engineers reviewing the TLC2252QDR datasheet, TLC2252QDR pinout, TLC2252QDR application, or TLC2252QDR equivalent, this device is selected for micropower analog front-ends requiring rail-to-rail output swing, low-noise amplification of high-impedance sources (e.g., piezoelectric transducers), and operation across –40°C to 125°C with ±2.2 V to ±8 V supply flexibility.
Technical Context
The TLC2252QDR 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 voltage range extending to the negative rail. Its architecture supports both single-supply (e.g., 5 V) and split-supply (e.g., ±5 V) configurations without performance degradation.
It features fully specified operation over –40°C to 125°C, with maximum input offset voltage of 1500 µV (TLC2252Q) and 850 µV (TLC2252AQ); the Q-suffix variant is qualified for automotive applications per AEC-Q100 requirements and includes configuration control and qualification to automotive standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 35 µA per channel - enables multi-year battery life in portable gas sensors and tire pressure monitors. |
| Input Bias Current | 1 pA typical - preserves signal integrity when amplifying outputs from high-impedance pH electrodes or photodiode arrays. |
| Input Voltage Noise | 19 nV/√Hz at 1 kHz - supports low-noise amplification of microvolt-level bio-potential signals in wearable health devices. |
| Rail-to-Rail Output | Swing includes both supply rails - maximizes dynamic range when driving SAR ADCs with 0–5 V input ranges. |
| Common-Mode Input Range | Includes negative rail - allows direct sensing of ground-referenced transducer outputs without level-shifting circuitry. |
| Operating Temperature | –40°C to 125°C - meets under-hood automotive sensor requirements and industrial process control environments. |
| Input Offset Voltage | 1500 µV max (TLC2252Q) - suitable for non-critical gain stages where trimming is not required. |
Pinout & Package
Package: 8-pin SOIC (D package), tape-and-reel (R suffix), RoHS-compliant, rated for automotive temperature range (–40°C to 125°C).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Inverting amplifier output - drives downstream filter or ADC input with full rail-to-rail swing. |
| 2 | IN1– | Inverting input - accepts feedback network or differential signal path in transimpedance configurations. |
| 3 | IN1+ | Non-inverting input - connects to high-impedance sensor node; benefits from 10¹² Ω common-mode input resistance. |
| 4 | GND / VDD– | Negative supply or ground reference - serves as return path for both amplifiers; supports single- or dual-supply operation. |
| 5 | IN2+ | Non-inverting input (Channel 2) - isolated from Channel 1 for dual-sensor signal chains (e.g., differential thermocouple + RTD). |
| 6 | IN2– | Inverting input (Channel 2) - configurable for unity-gain buffer or precision difference amplifier topologies. |
| 7 | OUT2 | Output (Channel 2) - independently buffered output; no crosstalk with Channel 1 per datasheet characterization. |
| 8 | VDD+ | Positive supply - accepts 2.2 V to 8 V (single) or ±2.2 V to ±8 V (split); internal ESD protection rated to ±2 kV HBM. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Delivers full 0 V to VDD output range - eliminates need for level-shifting before 12-bit+ SAR ADCs. |
| Ultra-low input bias current | 1 pA typical - prevents DC error accumulation in integrator circuits used for charge accumulation in radiation detectors. |
| Low-noise performance | 19 nV/√Hz at 1 kHz - reduces integrated noise floor below 1 µV RMS in 10 Hz–10 kHz bandwidths for audio preamps. |
| Automotive qualification | AEC-Q100 Grade 2 qualified (–40°C to 105°C ambient) - approved for engine control module auxiliary signal conditioning. |
| Single- and split-supply support | Fully characterized at 5 V and ±5 V - simplifies design reuse across portable medical (5 V) and industrial PLC (±15 V) platforms. |
Applications
| Automotive Cabin Air Quality Sensor | Portable Gas Detector Front-End |
|---|---|
Use Scenario: Amplifying low-current output from electrochemical CO sensor in HVAC control unit. IC Role / Device Role: Dual-channel transimpedance amplifier with one channel for CO and one for NO₂ detection. Use Value: 1 pA input bias current prevents baseline drift; rail-to-rail output ensures full utilization of 16-bit ADC input range. |
Use Scenario: Signal conditioning for MEMS-based VOC sensor in handheld industrial safety monitor. IC Role / Device Role: Low-power buffer and gain stage preceding sigma-delta ADC. Use Value: 35 µA per channel extends battery life to >2 years; 19 nV/√Hz noise enables sub-ppm detection resolution. |
| Wearable Bio-Impedance Monitor | Industrial RTD Signal Conditioning |
Use Scenario: Excitation and measurement of skin impedance during galvanic skin response (GSR) analysis. IC Role / Device Role: Precision current source driver and synchronous demodulator amplifier. Use Value: Common-mode input range to negative rail allows ground-referenced electrode interface without biasing resistors. |
Use Scenario: 3-wire RTD measurement in programmable logic controller analog input module. IC Role / Device Role: Low-drift instrumentation amplifier front-end with excitation current buffering. Use Value: 1500 µV max VIO avoids calibration at factory; –40°C to 125°C rating ensures reliability in uncontrolled cabinet environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2432IDR | Higher drive capability (25 mA), wider input voltage range (to VDD– + 0.1 V), but 55 µA supply current per channel. | Better suited for driving capacitive loads (e.g., long cables) or higher-voltage sensor bridges (up to 16 V). | Select TLV2432IDR when output current >10 mA or supply >8 V is required; TLC2252QDR remains optimal for <40 µA ultra-low-power designs. |
| OPA2333AIDR | Zero-drift architecture, 2 µV max VIO, 0.1 µV/°C drift, but 17 µA supply current and no rail-to-rail output (clips ~200 mV from rails). | Ideal for precision weight scales or strain gauge bridges where offset stability dominates power concerns. | Choose OPA2333AIDR only when sub-µV offset drift is mandatory; TLC2252QDR provides superior rail-to-rail swing and lower noise in micropower contexts. |
Compared with TLV2432IDR and OPA2333AIDR, the TLC2252QDR uniquely balances rail-to-rail output, 1 pA input bias, and 35 µA supply current - making it the only dual op-amp in its class qualified for automotive temperature range without sacrificing noise or input impedance.
Availability
TLC2252QDR is available at Aetrix Electronics and suitable for automotive cabin air quality sensors, portable gas detectors, and wearable bio-impedance monitors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC2252QDR 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 amplifiers and automotive-qualified components.
The TLC225x family was designed specifically for micropower, rail-to-rail signal conditioning in battery-operated and automotive sensor systems - emphasizing low noise, ultra-low input bias, and robust operation across extreme temperatures.
FAQ
What is the maximum supply voltage for the TLC2252QDR?
The TLC2252QDR supports absolute maximum supply voltages of +8 V on VDD+ and –8 V on VDD–, with recommended operating range of ±2.2 V to ±8 V for split supplies or 4.4 V to 16 V for single-ended supplies. Operation beyond ±8 V risks permanent damage per the Absolute Maximum Ratings table in the SLOS176D datasheet.
Does the TLC2252QDR support rail-to-rail input?
No, the TLC2252QDR does not feature rail-to-rail input; its common-mode input voltage range extends to the negative rail but stops 1.5 V below the positive rail (e.g., 0 V to 3.5 V at VDD = 5 V). This limitation is explicitly defined in the Recommended Operating Conditions table and confirmed across all test conditions in the Electrical Characteristics sections.
Is the TLC2252QDR pin-compatible with the TLC2252CDR?
Yes, the TLC2252QDR and TLC2252CDR share identical 8-pin SOIC (D) package footprints and pin assignments. However, the Q-suffix version is qualified for –40°C to 125°C operation and automotive use, while the C-suffix is rated only for 0°C to 70°C - PCB layout may be reused, but thermal and reliability validation must reflect the target application environment.
What is the typical input offset voltage for the TLC2252QDR?
The TLC2252QDR has a maximum input offset voltage of 1500 µV at 25°C and 1750 µV across the full –40°C to 125°C temperature range. Typical value is 200 µV at 25°C, as documented in the Electrical Characteristics tables for the Q-suffix variants under both 5 V and ±5 V supply conditions.
Can the TLC2252QDR drive a 10 kΩ load at full rail-to-rail swing?
Yes - the TLC2252QDR maintains rail-to-rail output swing into loads ≥10 kΩ, as verified by VOH/VOL specifications showing 4.98 V high-level output and 0.01 V low-level output at VDD = 5 V with IOH/IOL ≤ 20 µA. Driving heavier loads (e.g., 1 kΩ) reduces swing marginally but remains functional per the Output Voltage vs Load graphs in the datasheet.
TLC2252QDR 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:
- Obsolete
- 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:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLC2252QDR FAQ
1.How can I place an order for TLC2252QDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2252QDR 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 TLC2252QDR reliable?
The price and inventory of TLC2252QDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2252QDR is usually 5 days.
3.What payment methods are accepted for TLC2252QDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2252QDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2252QDR?
TLC2252QDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2252QDR 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 TLC2252QDR?
For technical support, including TLC2252QDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2252QDR requirements.
6.How does Aetrix verify that TLC2252QDR is sourced from the original manufacturer or authorized distributors?
All TLC2252QDR 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 TLC2252QDR meets industry standards.
7.What is the process for return or replacement of TLC2252QDR?
All TLC2252QDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC2252QDR, 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 TLC2252QDR part is unused and in its original packaging.
Return procedure for TLC2252QDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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