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Texas Instruments TLC2252QDG4
- Part No.:
- TLC2252QDG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC2252QDG4.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,615
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Product details
Overview
TLC2252QDG4 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 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 from ±2.2 V to ±8 V supplies. It is widely used in piezoelectric transducer amplification and ADC front-end buffering.
For engineers reviewing the TLC2252QDG4 datasheet, TLC2252QDG4 pinout, TLC2252QDG4 application, or TLC2252QDG4 equivalent, key selection criteria include micropower operation (35 µA/channel), rail-to-rail output capability, low input bias current (1 pA typ), input offset voltage ≤1500 µV over temperature, and Q-temp automotive qualification (–40°C to 125°C).
Technical Context
The TLC2252QDG4 employs Advanced LinCMOS™ process technology to achieve rail-to-rail output swing while maintaining ultra-low quiescent current. Its input stage includes high-impedance CMOS inputs with common-mode range extending to the negative rail, enabling single-supply operation down to 4.4 V total supply.
It features fully specified performance across –40°C to 125°C, including 70 dB minimum CMRR, 80 dB minimum PSRR, and 100 kΩ to 1 MΩ large-signal open-loop gain. The device is optimized for stability with capacitive loads up to 100 pF and exhibits 63° phase margin at unity gain with 50 kΩ load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 35 µA per channel - enables multi-year battery life in portable monitoring systems |
| Input Bias Current | 1 pA typical - preserves signal integrity when amplifying high-impedance sources like piezoelectric sensors |
| Input Voltage Noise | 19 nV/√Hz at 1 kHz - supports low-noise signal acquisition in precision analog front-ends |
| Output Swing | Rail-to-rail - maximizes dynamic range into ADCs without level-shifting circuitry |
| Input Offset Voltage | ≤1500 µV max (–40°C to 125°C) - ensures DC accuracy in closed-loop sensor interfaces |
| Common-Mode Range | Includes negative rail - allows true single-supply operation with ground-referenced inputs |
| Operating Temp | –40°C to 125°C - qualified for under-hood automotive and industrial control environments |
Pinout & Package
Package: SOIC-8 (D package), RoHS-compliant, surface-mount, 150 mil width.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Channel 1) | Accepts differential input signal; high-impedance CMOS node (1 pA bias current) |
| 2 | Non-Inverting Input (Channel 1) | Reference input for Channel 1; common-mode range extends to V– |
| 3 | Output (Channel 1) | Rail-to-rail output capable of sourcing/sinking ±50 mA; drives 100 kΩ loads |
| 4 | V– / GND | Negative supply or ground reference; supports single- or split-supply operation |
| 5 | V+ | Positive supply rail; operates from ±2.2 V to ±8 V (or 4.4 V to 16 V single-supply) |
| 6 | Inverting Input (Channel 2) | Independent high-Z input for second amplifier; identical specs to Pin 1 |
| 7 | Non-Inverting Input (Channel 2) | Second independent reference input; same rail-to-rail input capability as Pin 2 |
| 8 | Output (Channel 2) | Second rail-to-rail output; electrically isolated from Channel 1; no crosstalk specification given |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Enables full utilization of ADC input range without external level-shifting components |
| 1 pA input bias current | Minimizes voltage error in high-impedance source applications (e.g., pH electrodes, photodiodes) |
| 35 µA per channel supply current | Supports always-on sensing in energy-constrained IoT nodes and handheld medical devices |
| –40°C to 125°C operation | Fully characterized and qualified for automotive engine-control and industrial motor-drive feedback loops |
| Low 19 nV/√Hz noise | Reduces integrated noise floor in bandwidth-limited sensor amplifiers (<100 kHz) |
Applications
| Piezoelectric Sensor Amplifier | ADC Front-End Buffer |
|---|---|
Use Scenario: Amplifying low-level charge output from vibration or pressure sensors in predictive maintenance modules. IC Role / Device Role / Timing Role: First-stage transimpedance or voltage amplifier with high input impedance and minimal loading. Use Value: 1 pA input bias current prevents signal degradation; rail-to-rail output ensures maximum SNR into 12-bit+ SAR ADCs. | Use Scenario: Driving the sampling capacitor of precision successive-approximation ADCs in data loggers. IC Role / Device Role / Timing Role: Low-power, low-distortion buffer isolating sensor signal path from ADC switching transients. Use Value: 0.2% THD+N at 10 kHz and 63° phase margin ensure stable settling within ADC acquisition windows. |
| Battery-Powered Gas Monitor | Automotive Cabin Air Quality Sensor |
Use Scenario: Signal conditioning for electrochemical gas sensors requiring microamp-level bias stability. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with low drift and minimal self-heating in sealed enclosures. Use Value: 1500 µV max VIO over –40°C to 125°C and 0.5 µV/°C tempco maintain calibration integrity over temperature. | Use Scenario: Conditioning CO₂ or VOC sensor outputs in automotive HVAC control units. IC Role / Device Role / Timing Role: Dual-channel signal conditioner supporting simultaneous temperature-compensated sensor pairs. Use Value: Q-temp qualification (–40°C to 125°C) and 70 dB CMRR reject engine bay EMI during cold-start and hot-soak conditions. |
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 strength (25 mA), higher supply current (600 µA/channel), wider input voltage range (rail-to-rail in/out) | Preferred where output loading exceeds ±50 mA or where input rail-to-rail is required | Select TLV2432IDR only if higher speed (1.3 MHz GBW) or stronger output drive is needed; not drop-in due to higher power |
| OPA2333AIDR | Zero-drift architecture, 0.02 µV/°C offset drift, 60 µA/channel, lower noise (5.5 nV/√Hz) | Required for <1 µV offset drift over temperature in precision instrumentation | Choose OPA2333AIDR when long-term DC stability outweighs micropower priority; not pin-compatible |
Compared with TLV2432IDR and OPA2333AIDR, the TLC2252QDG4 uniquely balances ultra-low power (35 µA), rail-to-rail output, and automotive temperature range - making it optimal for cost-sensitive, battery-constrained automotive and industrial sensor nodes where moderate DC precision suffices.
Availability
TLC2252QDG4 is available at Aetrix Electronics and suitable for automotive cabin air quality monitors, handheld gas detectors, and piezoelectric structural health monitoring systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC2252QDG4 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 for industrial, automotive, and personal electronics markets.
The TLC225x family was engineered specifically for micropower, rail-to-rail output signal conditioning in battery-operated and high-impedance sensor applications - emphasizing low bias current, low noise, and wide temperature operation.
FAQ
What is the maximum operating supply voltage for the TLC2252QDG4?
The TLC2252QDG4 supports a maximum total supply voltage of 16 V in single-supply mode (VDD = 16 V) or ±8 V in split-supply configuration. Absolute maximum ratings specify VDD+ ≤ +8 V and VDD– ≥ –8 V. Exceeding these limits risks permanent damage. Operation above ±8 V is not supported, even briefly.
Does the TLC2252QDG4 support true rail-to-rail input?
No, the TLC2252QDG4 features rail-to-rail *output* but not rail-to-rail input. Its common-mode input voltage range extends to the negative rail (V–) but stops 1.5 V below the positive rail (V+ – 1.5 V) under all operating conditions. This limitation is explicitly defined in the Recommended Operating Conditions table for all temperature grades.
Is the TLC2252QDG4 pin-compatible with the standard TLC2252CDR?
Yes, the TLC2252QDG4 is pin-compatible with the TLC2252CDR and other SOIC-8 variants in the TLC2252 family. All share identical D-package pinout (SOIC-8, 150-mil width), including Pin 1 (1IN–), Pin 2 (1IN+), Pin 3 (1OUT), Pin 4 (V–/GND), Pin 5 (V+), Pin 6 (2IN–), Pin 7 (2IN+), and Pin 8 (2OUT). Only temperature grade and offset voltage bin differ.
What is the input offset voltage specification for the TLC2252QDG4 over temperature?
The TLC2252QDG4 has a maximum input offset voltage of 1500 µV over its full operating range of –40°C to 125°C. At 25°C, the typical value is 200 µV, and the maximum is also 1500 µV. The temperature coefficient is 0.5 µV/°C, meaning offset drift remains tightly bounded across automotive thermal profiles.
Can the TLC2252QDG4 drive a 100 pF capacitive load stably?
Yes, the TLC2252QDG4 is characterized for stable operation with up to 100 pF capacitive load at unity gain, delivering 63° phase margin and 15 dB gain margin under standard test conditions (RL = 50 kΩ, CL = 100 pF, VDD = ±5 V). No external compensation is required for this load condition, as confirmed in the Operating Characteristics tables.
TLC2252QDG4 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
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TLC2252QDG4 FAQ
1.How can I place an order for TLC2252QDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC2252QDG4 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 TLC2252QDG4 reliable?
The price and inventory of TLC2252QDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC2252QDG4 is usually 5 days.
3.What payment methods are accepted for TLC2252QDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC2252QDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC2252QDG4?
TLC2252QDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC2252QDG4 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 TLC2252QDG4?
For technical support, including TLC2252QDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC2252QDG4 requirements.
6.How does Aetrix verify that TLC2252QDG4 is sourced from the original manufacturer or authorized distributors?
All TLC2252QDG4 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 TLC2252QDG4 meets industry standards.
7.What is the process for return or replacement of TLC2252QDG4?
All TLC2252QDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLC2252QDG4, 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 TLC2252QDG4 part is unused and in its original packaging.
Return procedure for TLC2252QDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLC2252QDG4 Tags
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