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Texas Instruments TLC2252AQDG4
- Part No.:
- TLC2252AQDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2252AQDG4.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,563
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Product details
Overview
TLC2252AQDG4 from Texas Instruments is a dual rail-to-rail output, very low-power operational amplifier designed for precision signal conditioning in battery-powered and high-impedance sensor interfaces. It delivers 19 nV/√Hz input voltage noise at 1 kHz, 1 pA typical input bias current, 35 µA per channel supply current, and rail-to-rail output swing from ±2.2 V to ±8 V supplies. It is qualified for automotive applications (–40°C to 125°C) and used in piezoelectric transducer amplification and ADC driver stages.
For engineers reviewing the TLC2252AQDG4 datasheet, TLC2252AQDG4 pinout, TLC2252AQDG4 application, or TLC2252AQDG4 equivalent, this page provides verified electrical specifications, package mapping, validated automotive-grade operating limits, and direct alternative options for low-noise micropower op-amp selection in space-constrained, single-supply systems.
Technical Context
The TLC2252AQDG4 employs Advanced LinCMOS™ process technology to achieve rail-to-rail output swing while maintaining ultra-low input bias current (1 pA typ) and low noise (19 nV/√Hz @ 1 kHz). Its input stage includes negative-rail common-mode capability and operates over ±2.2 V to ±8 V supply ranges.
It features fully characterized performance across –40°C to +125°C, with maximum input offset voltage of 850 µV (TLC2252A grade), CMRR ≥75 dB, and supply voltage rejection ratio ≥80 dB - enabling stable operation in noisy automotive power domains without external trimming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±2.2 V to ±8 V - supports wide-input automotive battery rails and split-supply industrial sensors. |
| Input Bias Current | 1 pA typ - enables accurate amplification of high-impedance sources (e.g., piezoelectric transducers, pH electrodes). |
| Input Voltage Noise | 19 nV/√Hz @ 1 kHz - four times lower than legacy micropower CMOS op-amps, critical for low-level analog front-ends. |
| Output Swing | Rail-to-rail - delivers full dynamic range into ADCs with 5 V or ±5 V supplies, maximizing SNR without level-shifting. |
| Quiescent Current | 35 µA per channel - allows multi-channel sensing in energy-harvesting or coin-cell-powered modules. |
| Input Offset Voltage | 850 µV max @ 25°C (TLC2252A grade) - specified for precision DC-coupled signal chains requiring minimal calibration. |
| Common-Mode Input Range | Includes negative rail - permits single-supply operation with ground-referenced inputs in portable instrumentation. |
Pinout & Package
Package: SOIC-8 (D package), RoHS-compliant, surface-mount, 150 °C rated plastic body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input (Channel 1) | High-impedance differential input node; accepts signals down to VDD– (ground in single-supply mode). |
| 2 | Non-inverting input (Channel 1) | High-impedance differential input node; common-mode range extends to negative rail. |
| 3 | Output (Channel 1) | Rail-to-rail output capable of sourcing/sinking ±50 mA; drives 100 kΩ loads with <0.15 V drop near rails. |
| 4 | VDD– / GND | Negative supply or ground reference; serves as common return for both channels and bias network. |
| 5 | Non-inverting input (Channel 2) | Independent high-Z input; electrically isolated from Channel 1 except via shared supply pins. |
| 6 | Inverting input (Channel 2) | Independent high-Z input; matched offset and bias characteristics to Channel 1 per datasheet matching. |
| 7 | Output (Channel 2) | Second rail-to-rail output; identical AC/DC specs to Pin 3; no crosstalk specification provided. |
| 8 | VDD+ | Positive supply rail; supports up to +8 V; decoupling capacitor required within 1 cm for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Delivers full-scale swing to within 150 mV of either rail under 500 µA load, preserving ADC resolution in 3.3 V or 5 V systems. |
| Ultra-low input bias current | 1 pA typical enables >1 GΩ source impedance interfacing without significant DC error or drift. |
| Low-noise architecture | 19 nV/√Hz @ 1 kHz reduces integrated noise in bandwidth-limited sensor paths (e.g., <10 kHz seismic or medical biosensors). |
| Automotive temperature grade | Qualified from –40°C to +125°C per AEC-Q100 requirements, supporting engine control, cabin sensing, and ADAS subsystems. |
| Single- and split-supply operation | Fully specified for 5 V single supply or ±5 V dual supply - eliminates need for separate design variants. |
Applications
| Automotive Cabin Sensor Interface | Piezoelectric Vibration Monitoring |
|---|---|
Use Scenario: Amplifying low-amplitude signals from MEMS accelerometers and humidity sensors in vehicle cabin ECUs. IC Role / Device Role / Timing Role: Dual-channel DC-coupled signal conditioner with rail-to-rail output driving 12-bit SAR ADCs. Use Value: 35 µA/channel quiescent current extends ECU sleep-mode battery life; 850 µV max VIO ensures <0.1% gain error without calibration. | Use Scenario: Conditioning charge-mode outputs from piezoelectric knock sensors in engine management systems. IC Role / Device Role / Timing Role: High-input-impedance transimpedance preamplifier with low 1 pA bias current minimizing signal loss. Use Value: 19 nV/√Hz noise floor preserves SNR in sub-10 kHz mechanical resonance detection; –40°C to 125°C rating matches under-hood thermal profile. |
| Portable Medical Biosensor Front-End | Industrial Loop-Powered Transmitter |
Use Scenario: Amplifying microvolt-level EEG or EMG signals in handheld diagnostic devices powered by coin cells. IC Role / Device Role / Timing Role: Dual low-power op-amp providing gain and filtering before 16-bit delta-sigma ADC sampling. Use Value: Rail-to-rail output maximizes dynamic range into low-voltage ADCs; 35 µA/channel enables >1-year battery life at 10 Hz sampling. | Use Scenario: Signal conditioning stage in 4–20 mA loop-powered pressure transmitters with local analog processing. IC Role / Device Role / Timing Role: Precision buffer and level shifter converting sensor bridge output to ratiometric DAC input. Use Value: 850 µV max VIO and 80 dB SVR ensure stable 0.1% accuracy despite 12–36 V loop supply variation and ambient temperature swings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-power rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2432IDR | Higher drive strength (10 mA short-circuit), higher supply current (550 µA/ch), wider input voltage range (rail-to-rail input). | Preferred where output loading exceeds ±1 mA or input must swing beyond rails; unsuitable for micropower (<100 µA) designs. | Select TLV2432IDR when higher output current or rail-to-rail input is required; avoid if quiescent current budget is <100 µA. |
| OPA2333AIDR | Zero-drift architecture, 0.02 µV/°C offset drift, 60 nA supply current, 5.5 µVpp 0.1–10 Hz noise. | Better for DC-precision applications needing <1 µV offset drift over temperature; higher cost and larger die size. | Select OPA2333AIDR only when long-term DC stability dominates over micropower or cost constraints. |
Compared with TLV2432IDR and OPA2333AIDR, the TLC2252AQDG4 uniquely balances ultra-low power (35 µA), low noise (19 nV/√Hz), and automotive qualification - making it optimal for cost-sensitive, battery-aware, and thermally demanding dual-channel sensor nodes where moderate DC precision suffices.
Availability
TLC2252AQDG4 is available at Aetrix Electronics and suitable for automotive cabin sensing, portable medical diagnostics, and industrial loop-powered transmitters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC2252AQDG4 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 delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, longevity, and automotive-grade validation.
The TLC225x family was engineered for micropower, rail-to-rail signal conditioning in harsh environments - specifically targeting automotive, industrial, and portable instrumentation where low bias current, low noise, and extended temperature operation are mandatory.
FAQ
What is the maximum operating temperature range for the TLC2252AQDG4?
The TLC2252AQDG4 is qualified for continuous operation from –40°C to +125°C, meeting automotive-grade thermal requirements per its Q-suffix designation. This range is fully characterized for all key parameters including input offset voltage, CMRR, and supply current - no derating is required within these limits.
Does the TLC2252AQDG4 support true rail-to-rail input operation?
No, the TLC2252AQDG4 supports rail-to-rail *output* swing but not rail-to-rail *input*. Its common-mode input voltage range extends to the negative rail (VDD–) but stops 1.5 V below the positive rail (VDD+ – 1.5 V) - confirmed in the Recommended Operating Conditions table for all supply configurations.
What is the typical supply current per channel for the TLC2252AQDG4 at 25°C?
The typical supply current per channel for the TLC2252AQDG4 is 35 µA at 25°C and VDD = ±5 V, as specified in the "Very Low Power . . . 35 µA Per Channel Typ" headline and confirmed in Electrical Characteristics tables (IDD = 70 µA total for dual channel, i.e., 35 µA each).
Can the TLC2252AQDG4 drive a 10 kΩ load while maintaining rail-to-rail output swing?
Yes - the TLC2252AQDG4 maintains rail-to-rail output swing into 10 kΩ loads, as demonstrated by VOH ≥4.8 V and VOL ≤0.3 V at ±5 V supplies and IOL/IOH ≤1 mA (per Electrical Characteristics, Table 6 & 8). Performance degrades only under heavier loads (>4 mA), where swing compression becomes measurable.
Is the TLC2252AQDG4 pin-compatible with the standard TLC2252CD or TLC2252ID variants?
Yes - the TLC2252AQDG4 uses the same SOIC-8 (D) package and identical pinout as TLC2252CD and TLC2252ID, as confirmed by the "TLC2252C, TLC2252AC / TLC2252I, TLC2252AI / TLC2252Q, TLC2252AQ D, P, OR PW PACKAGE (TOP VIEW)" diagram on page 3 of the datasheet.
TLC2252AQDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- 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
TLC2252AQDG4 FAQ
1.How can I place an order for TLC2252AQDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2252AQDG4 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 TLC2252AQDG4 reliable?
The price and inventory of TLC2252AQDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2252AQDG4 is usually 5 days.
3.What payment methods are accepted for TLC2252AQDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2252AQDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2252AQDG4?
TLC2252AQDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2252AQDG4 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 TLC2252AQDG4?
For technical support, including TLC2252AQDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2252AQDG4 requirements.
6.How does Aetrix verify that TLC2252AQDG4 is sourced from the original manufacturer or authorized distributors?
All TLC2252AQDG4 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 TLC2252AQDG4 meets industry standards.
7.What is the process for return or replacement of TLC2252AQDG4?
All TLC2252AQDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC2252AQDG4, 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 TLC2252AQDG4 part is unused and in its original packaging.
Return procedure for TLC2252AQDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC2252AQDG4 Tags
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