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Texas Instruments TLC2252AQDR
- Part No.:
- TLC2252AQDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2252AQDR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,821
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Product details
Overview
TLC2252AQDR from Texas Instruments is a dual rail-to-rail output, very low-power operational amplifier optimized for automotive-grade applications. It delivers 35 µA per channel supply current, 19 nV/√Hz input voltage noise at 1 kHz, and 850 µV maximum input offset voltage at 25°C, enabling precision signal conditioning in battery-powered sensor interfaces and analog front-ends interfacing with ADCs.
For engineers reviewing the TLC2252AQDR datasheet, TLC2252AQDR pinout, TLC2252AQDR application, or TLC2252AQDR equivalent, key selection criteria include its Q-temp automotive qualification (–40°C to +125°C), rail-to-rail output swing, ultra-low input bias current (1 pA typ), and compatibility with single-supply (2.2 V to 8 V) or split-supply (±2.2 V to ±8 V) operation.
Technical Context
The TLC2252AQDR uses Advanced LinCMOS™ process technology to achieve rail-to-rail output swing while maintaining micropower operation. Its input stage supports common-mode voltage down to the negative rail, and it features fully specified performance across automotive temperature range (–40°C to +125°C) under both single- and split-supply conditions.
Designed as a performance upgrade to TS27L2/L4 and TLC27L2/L4, the device integrates high input impedance (>10¹² Ω), low noise, and low offset drift (0.5 µV/°C), making it suitable for high-impedance source amplification-e.g., piezoelectric transducers-and precision DC-coupled monitoring circuits where power and accuracy are jointly constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 35 µA per channel - enables multi-year battery life in portable and remote sensing systems. |
| Input Offset Voltage | 850 µV max at 25°C - supports accurate DC amplification without frequent calibration in automotive sensor signal chains. |
| Input Bias Current | 1 pA typical - preserves signal integrity when amplifying from ultra-high-impedance sources like pH electrodes or photodiodes. |
| Input Voltage Noise | 19 nV/√Hz at 1 kHz - improves SNR in low-level analog signal conditioning versus prior micropower CMOS op-amps. |
| Rail-to-Rail Output | Swing includes both supply rails - maximizes dynamic range when driving SAR or delta-sigma ADCs from single 3.3 V or 5 V supplies. |
| Operating Temp Range | –40°C to +125°C - qualified for under-hood and transmission control module applications per AEC-Q100 stress requirements. |
| Common-Mode Input Range | Includes negative rail - allows direct interface with ground-referenced sensors without level-shifting circuitry. |
Pinout & Package
Package: SOIC-8 (D package), tape-and-reel (R suffix), Q-temp automotive qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Channel 1) | High-impedance differential input node; accepts signals referenced to GND or negative rail. |
| 2 | Non-Inverting Input (Channel 1) | High-impedance differential input node; supports unity-gain buffer or precision instrumentation configurations. |
| 3 | Output (Channel 1) | Rail-to-rail output capable of sourcing/sinking ±50 mA; drives ADC reference buffers or low-power actuators. |
| 4 | VDD– / GND | Negative supply or ground reference; common return for both channels and external decoupling. |
| 5 | VDD+ | Positive supply input; operates from 2.2 V to 8 V single supply or ±2.2 V to ±8 V dual supply. |
| 6 | Inverting Input (Channel 2) | Independent high-Z input for second signal path; enables dual-channel filtering or differential pair amplification. |
| 7 | Non-Inverting Input (Channel 2) | Second independent input; supports matched gain stages or dual-sensor signal conditioning. |
| 8 | Output (Channel 2) | Second rail-to-rail output; allows simultaneous processing of two analog signals with shared supply and thermal environment. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output swing | Enables full utilization of ADC input range in single-supply systems, improving effective resolution by up to 1 LSB. |
| 1 pA typical input bias current | Minimizes voltage error across high-value feedback networks (e.g., >10 MΩ), critical for long-time-constant integrators. |
| 850 µV max input offset (TLC2252A variant) | Reduces initial DC error in closed-loop transducer interfaces, lowering system calibration burden in production test. |
| Q-temp automotive qualification | Meets extended temperature and reliability requirements for engine control, HVAC, and body electronics modules. |
| Low 19 nV/√Hz input noise | Supports clean amplification of microvolt-level sensor outputs (e.g., thermocouples, strain gauges) without dominant noise contribution. |
Applications
| Engine Coolant Temperature Sensing | Automotive Cabin Air Quality Monitoring |
|---|---|
Use Scenario: Amplifies low-level resistance changes from NTC thermistors in coolant lines, operating from 5 V vehicle supply with minimal self-heating. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with rail-to-rail output driving 12-bit SAR ADC input. Use Value: 850 µV max VIO ensures <±0.5°C measurement error before calibration; 35 µA/channel minimizes thermal drift in sealed sensor housings. | Use Scenario: Conditions analog output from electrochemical CO₂ and VOC sensors in HVAC control units, powered by always-on 3.3 V rail. IC Role / Device Role / Timing Role: High-input-impedance buffer and gain stage preceding low-power ADC in sleep-mode-aware subsystem. Use Value: 1 pA IIB prevents loading of high-output-impedance gas sensors; –40°C to +125°C rating ensures operation during cold cranking and summer cabin heat soak. |
| Electric Power Steering Torque Sensor Interface | Brake Fluid Level Detection Circuit |
Use Scenario: Amplifies Wheatstone bridge output from magnetostrictive torque sensors, requiring stable gain and low drift over temperature. IC Role / Device Role / Timing Role: Dual-channel instrumentation amplifier front-end with matched VIO and CMRR >75 dB. Use Value: 0.5 µV/°C αVIO limits offset drift to <6 µV over full automotive range; dual configuration reduces board space vs. discrete solutions. | Use Scenario: Detects fluid level via capacitive or resistive probe in brake reservoir, operating from 12 V battery with LDO regulation. IC Role / Device Role / Timing Role: Low-power comparator driver and analog conditioner feeding microcontroller ADC. Use Value: Rail-to-rail output ensures full-scale detection margin even at low battery voltages (9 V); 35 µA total quiescent current extends system sleep duration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-power operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2432IDR | Higher drive capability (25 mA), wider supply range (2.7 V to 6 V), but higher quiescent current (550 µA/ch) and no automotive temp grade. | Better suited for active filter or line-driver roles; not qualified for under-hood use. | Select TLV2432IDR only if output current >10 mA or bandwidth >1 MHz is required; avoid for battery-critical or automotive-qualified designs. |
| OPA2333AIDR | Zero-drift architecture, 2 µV max VIO, 0.02 µV/°C drift, but 17 µA/ch supply current and limited rail-to-rail output swing (within 10 mV of rails). | Superior for ultra-precision DC measurements; less ideal for wide-dynamic-range ADC driving. | Choose OPA2333AIDR when sub-µV offset stability dominates over output swing or power; verify output headroom margins with target ADC. |
Compared with TLV2432IDR and OPA2333AIDR, the TLC2252AQDR uniquely balances automotive qualification, rail-to-rail output, ultra-low power (35 µA/ch), and 1 pA input bias-making it optimal for cost-sensitive, thermally demanding, battery-constrained automotive analog front-ends where moderate precision suffices.
Availability
TLC2252AQDR is available at Aetrix Electronics and suitable for engine control units, cabin air quality monitors, and brake fluid level detection systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC2252AQDR 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 company specializing in analog and embedded processing technologies, with leadership in automotive, industrial, and power management ICs.
The TLC225x family was designed specifically for rail-to-rail, micropower operational amplification in automotive and industrial sensor signal chains where low power, precision, and temperature robustness are jointly required.
FAQ
What is the maximum supply voltage for the TLC2252AQDR?
The TLC2252AQDR supports a maximum supply voltage of ±8 V in split-supply mode or 8 V in single-supply operation. Absolute maximum ratings specify VDD+ ≤ 8 V and VDD– ≥ –8 V. Exceeding these values risks permanent damage. Operation within recommended conditions (±2.2 V to ±8 V or 2.2 V to 8 V) ensures guaranteed performance across –40°C to +125°C.
Does the TLC2252AQDR have rail-to-rail input capability?
No, the TLC2252AQDR features rail-to-rail *output* swing but only extends its common-mode input voltage range to the negative rail (VDD–/GND). The positive end is limited to VDD+ – 1.5 V under recommended operating conditions. This allows ground-referenced sensor inputs but requires level-shifting for signals near the positive rail.
Is the TLC2252AQDR pin-compatible with the standard TLC2252CDR?
Yes, the TLC2252AQDR shares identical SOIC-8 (D) package footprint and pinout with TLC2252CDR and other D-package variants. However, the 'Q' suffix denotes Q-temp automotive qualification (–40°C to +125°C operation, enhanced reliability testing), while 'C' is commercial grade (0°C to 70°C). PCB layout is interchangeable, but thermal and lifetime validation differs.
What is the typical input bias current of the TLC2252AQDR?
The typical input bias current of the TLC2252AQDR is 1 pA at 25°C, with a maximum of 100 pA across the full –40°C to +125°C temperature range. This ultra-low value is enabled by Advanced LinCMOS™ process technology and makes the device suitable for interfacing with high-impedance sources such as piezoelectric sensors, pH electrodes, and photodiode transimpedance stages.
Can the TLC2252AQDR drive a 10 kΩ load across the full temperature range?
Yes, the TLC2252AQDR can drive a 10 kΩ load across –40°C to +125°C while maintaining rail-to-rail output swing and specified AC performance. Its output stage is rated for ±50 mA short-circuit current, and typical output voltage swing remains within 100 mV of each rail into 10 kΩ at 25°C. Load regulation and thermal effects are within specification limits for this load under all recommended operating conditions.
TLC2252AQDR 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:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLC2252AQDR FAQ
1.How can I place an order for TLC2252AQDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2252AQDR 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 TLC2252AQDR reliable?
The price and inventory of TLC2252AQDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2252AQDR is usually 5 days.
3.What payment methods are accepted for TLC2252AQDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2252AQDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2252AQDR?
TLC2252AQDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2252AQDR 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 TLC2252AQDR?
For technical support, including TLC2252AQDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2252AQDR requirements.
6.How does Aetrix verify that TLC2252AQDR is sourced from the original manufacturer or authorized distributors?
All TLC2252AQDR 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 TLC2252AQDR meets industry standards.
7.What is the process for return or replacement of TLC2252AQDR?
All TLC2252AQDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC2252AQDR, 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 TLC2252AQDR part is unused and in its original packaging.
Return procedure for TLC2252AQDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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