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Texas Instruments TLC2252QD
- Part No.:
- TLC2252QD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2252QD.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,917
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Product details
Overview
TLC2252QD from Texas Instruments is a dual rail-to-rail output, very low-power operational amplifier designed for precision signal conditioning in automotive and industrial environments. It delivers 35 µA per channel supply current, 19 nV/√Hz input voltage noise at 1 kHz, 1 pA typical input bias current, and rail-to-rail output swing across ±2.2 V to ±8 V supplies - enabling high dynamic range in battery-powered sensor interfaces and ADC drivers.
For engineers reviewing the TLC2252QD datasheet, TLC2252QD pinout, TLC2252QD application, or TLC2252QD equivalent, key selection criteria include its Q-temp automotive qualification (–40°C to 125°C), 850 µV max input offset voltage (TLC2252AQD variant), ultra-low power consumption, and compatibility with single- or split-supply systems requiring wide common-mode input range down to the negative rail.
Technical Context
The TLC2252QD employs Advanced LinCMOS™ process technology to achieve rail-to-rail output swing while maintaining micropower operation. Its input stage supports common-mode voltages extending to the negative supply rail, and it is fully specified for both single-supply (e.g., 5 V) and split-supply (e.g., ±5 V) configurations.
It features a 0.2 MHz gain-bandwidth product, 63° phase margin, and 15 dB gain margin under unity-gain conditions with 50 kΩ load and 100 pF capacitance - ensuring stable operation in low-frequency precision circuits without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 35 µA per channel typ - enables multi-year battery life in portable monitoring systems |
| Input Bias Current | 1 pA typ - preserves signal integrity when amplifying high-impedance sources like piezoelectric sensors |
| Input Voltage Noise | 19 nV/√Hz at 1 kHz - 4× lower than prior micropower CMOS op-amps for cleaner small-signal amplification |
| Output Swing | Rail-to-rail - maximizes dynamic range when driving SAR or delta-sigma ADCs with limited supply headroom |
| Input Offset Voltage | 850 µV max (TLC2252AQD) - supports precision DC-coupled applications without trimming |
| Operating Temp Range | –40°C to 125°C - qualified for under-hood automotive and harsh industrial environments |
| Common-Mode Input Range | Includes negative rail - allows direct interfacing with ground-referenced transducers in single-supply systems |
Pinout & Package
Package: SOIC-8 (D package), surface-mount, 150 mil width, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Inverting amplifier output terminal for Channel A; rail-to-rail capable |
| 2 | IN– A | Inverting input for Channel A; accepts signals down to VDD– |
| 3 | IN+ A | Non-inverting input for Channel A; high-impedance (10¹² Ω) |
| 4 | VDD– / GND | Negative supply or ground reference; common return for both channels |
| 5 | IN+ B | Non-inverting input for Channel B; independent of Channel A |
| 6 | IN– B | Inverting input for Channel B; supports same common-mode range as Channel A |
| 7 | OUT B | Inverting amplifier output terminal for Channel B; rail-to-rail capable |
| 8 | VDD+ | Positive supply terminal; operates from ±2.2 V to ±8 V or 4.4 V to 16 V single supply |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Swings within 10 mV of both supply rails - preserves full ADC input range without level-shifting circuitry |
| Ultra-low input bias current | 1 pA typ - eliminates significant error in photodiode or pH electrode front-ends |
| Low-noise architecture | 19 nV/√Hz at 1 kHz - improves SNR in medical ECG and industrial vibration sensing |
| Automotive qualification | Q-temp grade (–40°C to 125°C) with configuration control - meets AEC-Q100 stress test requirements |
| Single- and split-supply support | Fully characterized at 5 V and ±5 V - simplifies design reuse across portable and industrial platforms |
Applications
| Automotive Sensor Signal Conditioning | Portable Medical Instrumentation |
|---|---|
Use Scenario: Amplifying low-level analog outputs from temperature, pressure, or position sensors in engine control units and ADAS modules. IC Role / Device Role / Timing Role: Dual-channel precision amplifier providing rail-to-rail output drive into 12-bit ADC inputs. Use Value: 850 µV max VIO and –40°C to 125°C operation ensure accuracy over full automotive thermal profile without calibration. | Use Scenario: Front-end amplification of biopotential signals (ECG, EMG) in handheld diagnostic devices. IC Role / Device Role / Timing Role: Low-noise, low-power dual op-amp for differential instrumentation amplifier stages. Use Value: 1 pA input bias current prevents electrode polarization errors; 35 µA/channel extends battery life beyond 5 years in standby mode. |
| Industrial Process Monitoring | Smart Sensor Transmitter Modules |
Use Scenario: Signal conditioning for 4–20 mA loop-powered field transmitters measuring flow, level, or humidity. IC Role / Device Role / Timing Role: Dual op-amp implementing I/V conversion and buffer stages in low-power analog front-ends. Use Value: Rail-to-rail output and negative-rail common-mode input enable operation from single 3.3 V supply while accepting 0 V referenced sensor signals. | Use Scenario: Integrating analog signal chain in IIoT edge nodes with integrated temperature, gas, or motion sensing. IC Role / Device Role / Timing Role: Dual amplifier for sensor excitation and output buffering before MCU ADC sampling. Use Value: Micropower consumption (70 µA total) and 19 nV/√Hz noise allow high-resolution measurements without compromising energy budget. |
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 |
|---|---|---|---|
| TLV2432IDR | Higher supply current (125 µA/ch), wider GBW (1.8 MHz), higher drive capability (25 mA) | Better suited for active filters or higher-speed sensor interfaces where bandwidth >100 kHz is required | Select TLV2432IDR when slew rate (0.5 V/µs) and output drive exceed TLC2252QD's capabilities |
| OPA2333AIDR | Zero-drift architecture, 2 µV max VIO, 0.1 µV/°C drift, but higher quiescent current (17 µA/ch) | Preferred for ultra-precision DC-coupled applications (e.g., weigh scales, strain gauges) demanding sub-µV offset stability | Choose OPA2333AIDR only when long-term DC accuracy outweighs micropower priority |
Compared with TLV2432IDR and OPA2333AIDR, the TLC2252QD provides the lowest power consumption and widest temperature range among these three - making it optimal for automotive and battery-constrained industrial designs where offset voltage ≤850 µV is acceptable.
Availability
TLC2252QD is available at Aetrix Electronics and suitable for automotive sensor modules, portable medical diagnostics, and industrial process transmitters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC2252QD 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 experience in high-reliability automotive and industrial IC design.
The TLC225x family was engineered specifically for ultra-low-power, rail-to-rail precision amplification in harsh-environment applications - targeting automotive subsystems, portable instrumentation, and smart sensor nodes where supply constraints and thermal extremes demand robust analog performance.
FAQ
What is the maximum operating supply voltage for the TLC2252QD?
The TLC2252QD supports a maximum supply voltage of ±8 V for split-supply operation or up to 16 V for single-supply use. Absolute maximum ratings specify VDD+ ≤ 8 V and VDD– ≥ –8 V relative to midpoint; exceeding these limits risks permanent device damage. Recommended operating range remains ±2.2 V to ±8 V, validated across its full –40°C to 125°C temperature range.
Does the TLC2252QD have rail-to-rail input capability?
No, the TLC2252QD features rail-to-rail *output* swing but only extends its common-mode input voltage range to the negative supply rail (VDD–). The positive end is limited to VDD+ – 1.5 V under recommended conditions. This architecture enables ground-referenced sensor interfacing in single-supply systems while maintaining precision and low power - distinct from full rail-to-rail input op-amps that require more supply headroom.
How does the TLC2252QD differ from the standard TLC2252CD?
The TLC2252QD differs from the TLC2252CD primarily in temperature rating and qualification: TLC2252QD is Q-temp automotive-grade (–40°C to 125°C) with configuration control and AEC-Q100 alignment, whereas TLC2252CD is commercial-grade (0°C to 70°C). Both share identical electrical specs including 35 µA/channel supply current and 19 nV/√Hz noise, but only TLC2252QD guarantees performance and reliability in under-hood automotive applications.
Can the TLC2252QD drive capacitive loads directly?
The TLC2252QD is stable with up to 100 pF capacitive load under unity-gain conditions (63° phase margin, 15 dB gain margin), as verified in the datasheet. For loads exceeding 100 pF - such as ADC input capacitance plus PCB trace capacitance - external isolation resistance (e.g., 10–50 Ω in series with output) is recommended to maintain stability and prevent peaking or oscillation in precision measurement paths.
Is there a single-amplifier version of the TLC2252QD?
No, Texas Instruments does not offer a Q-temp qualified single-amplifier variant of the TLC2252QD. However, the TLV2211 family (e.g., TLV2211IDBVR) provides rail-to-rail input/output, micropower operation (1 µA), and –40°C to 125°C rating in SOT-23 - serving as a functional alternative for space-constrained designs needing single-channel amplification with comparable environmental robustness.
TLC2252QD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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
TLC2252QD FAQ
1.How can I place an order for TLC2252QD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2252QD 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 TLC2252QD reliable?
The price and inventory of TLC2252QD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2252QD is usually 5 days.
3.What payment methods are accepted for TLC2252QD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2252QD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2252QD?
TLC2252QD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2252QD 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 TLC2252QD?
For technical support, including TLC2252QD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2252QD requirements.
6.How does Aetrix verify that TLC2252QD is sourced from the original manufacturer or authorized distributors?
All TLC2252QD 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 TLC2252QD meets industry standards.
7.What is the process for return or replacement of TLC2252QD?
All TLC2252QD units undergo pre-shipment inspection (PSI). If there is an issue with TLC2252QD, 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 TLC2252QD part is unused and in its original packaging.
Return procedure for TLC2252QD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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