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Texas Instruments TLV2254AQD
- Part No.:
- TLV2254AQD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2254AQD.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,669
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Product details
Overview
TLV2254AQD from Texas Instruments is a quad rail-to-rail output operational amplifier optimized for low-voltage, micropower operation in automotive applications. It delivers 34 µA per channel supply current, 19 nV/√Hz input voltage noise at 1 kHz, 850 µV max input offset voltage at 25°C, and rail-to-rail output swing from 2.7 V to 8 V supply - enabling high-precision signal conditioning in battery-powered sensor interfaces and ADC front-ends.
For engineers reviewing the TLV2254AQD datasheet, TLV2254AQD pinout, TLV2254AQD application, or TLV2254AQD equivalent, key selection criteria include its Q-temp automotive qualification (−40°C to 125°C), ultra-low input bias current (1 pA typ), common-mode input range extending to the negative rail, and guaranteed performance at 3 V - critical for space-constrained, low-power automotive subsystems.
Technical Context
The TLV2254AQD employs Advanced LinCMOS™ process technology to achieve high input impedance (>10¹² Ω) and low input bias current while maintaining rail-to-rail output capability. Its internal architecture supports stable unity-gain operation with 63° phase margin and 15 dB gain margin under 50 kΩ//100 pF load conditions.
It is fully characterized across −40°C to 125°C and specified for both single-supply (2.7 V–8 V) and split-supply operation, with common-mode input voltage range including the negative rail and output swing within 10 mV of both rails at light loads - making it suitable for direct interfacing with 3-V ADCs and low-headroom analog systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 8 V - enables direct use with Li-ion, 3.3 V, and 5 V rails without level-shifting. |
| Quiescent Current | 34 µA per channel typ - supports multi-channel, always-on sensing in power-sensitive automotive modules. |
| Input Offset Voltage | 850 µV max at 25°C - ensures <1 LSB error when driving 12-bit ADCs with 3 V full-scale range. |
| Input Voltage Noise | 19 nV/√Hz at 1 kHz - preserves signal integrity for low-level transducer outputs (e.g., piezoelectric sensors). |
| Common-Mode Input Range | Includes negative rail (VDD−) - allows ground-referenced input signals without biasing networks. |
| Output Swing | Rail-to-rail - delivers full dynamic range into high-impedance loads, maximizing ADC utilization. |
| Gain-Bandwidth Product | 0.187 MHz at 3 V - sufficient for DC-coupled sensor amplification and anti-alias filtering up to ~10 kHz. |
Pinout & Package
TLV2254AQD is housed in an 14-pin SOIC (D) package with standard quad op-amp pinout and automotive-grade thermal and mechanical reliability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load or next stage; rail-to-rail capable. |
| 2 | IN− A | Inverting input of Amp A - high-impedance node; sensitive to PCB leakage and layout parasitics. |
| 3 | IN+ A | Non-inverting input of Amp A - accepts ground-referenced or biased sensor signals. |
| 4 | GND / VDD− | Negative supply terminal - serves as reference for single-supply operation and return path. |
| 5 | IN+ B | Non-inverting input of Amp B - independent channel for differential pair or dual-sensor interface. |
| 6 | IN− B | Inverting input of Amp B - matched to Pin 2 for consistent AC/DC performance across channels. |
| 7 | OUT B | Amplifier B output - electrically isolated from OUT A; supports independent feedback networks. |
| 8 | VDD+ | Positive supply terminal - accepts 2.7–8 V; decoupling capacitor required near pin. |
| 9 | OUT C | Amplifier C output - third channel for multi-signal conditioning (e.g., temperature + voltage + current). |
| 10 | IN− C | Inverting input of Amp C - shares same electrical specs as Pins 2 and 6. |
| 11 | IN+ C | Non-inverting input of Amp C - supports simultaneous acquisition of three analog inputs. |
| 12 | IN+ D | Non-inverting input of Amp D - fourth channel for redundancy or auxiliary monitoring functions. |
| 13 | IN− D | Inverting input of Amp D - fully independent; no crosstalk with other channels per datasheet. |
| 14 | OUT D | Amplifier D output - completes quad configuration; enables compact 4-channel front-end design. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Enables full utilization of 3 V ADC input range without external level-shifting circuitry. |
| 1 pA typical input bias current | Minimizes voltage error across high-value sensor resistors (e.g., >1 MΩ thermistor networks). |
| Q-temp automotive qualification | Guaranteed operation from −40°C to 125°C with controlled parametric drift for engine bay and ADAS modules. |
| 19 nV/√Hz input voltage noise | Preserves SNR in low-amplitude signal chains (e.g., microphone preamps, strain gauge bridges). |
| Low 34 µA/channel quiescent current | Supports always-on diagnostics in ECU sleep modes while meeting ISO 26262 power budget constraints. |
Applications
| Engine Coolant Temperature Sensing | Brake Fluid Pressure Monitoring |
|---|---|
Use Scenario: Amplifying low-level resistance changes from NTC thermistors in coolant lines, operating continuously at ambient temperatures up to 125°C. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end with rail-to-rail output driving 12-bit SAR ADC. Use Value: 850 µV max VIO ensures ≤0.35°C measurement error over full temperature range; 1 pA IIB prevents self-heating-induced drift in high-resistance sensor legs. | Use Scenario: Conditioning piezoresistive pressure sensor outputs in brake master cylinder assemblies exposed to vibration and thermal cycling. IC Role / Device Role / Timing Role: Low-noise, low-drift signal conditioner with common-mode input range to ground for single-supply operation. Use Value: 19 nV/√Hz noise floor maintains resolution down to 0.1 psi; rail-to-rail swing maximizes dynamic range into 3.3 V ADC with 10-bit ENOB. |
| Occupant Detection System | 12 V Battery Health Monitor |
Use Scenario: Amplifying capacitive or piezoelectric seat occupancy sensor signals in safety-critical airbag control units. IC Role / Device Role / Timing Role: Quad-channel signal conditioner for multi-node sensing, leveraging four independent amplifiers on one die. Use Value: Four matched channels reduce board area and calibration complexity; Q-temp rating ensures reliability during vehicle hot-soak testing. | Use Scenario: Measuring battery voltage, current shunt voltage, and temperature in automotive body control modules with strict power budgets. IC Role / Device Role / Timing Role: Multi-function analog front-end supporting voltage scaling, current sense amplification, and thermistor biasing. Use Value: 34 µA/channel quiescent current allows continuous monitoring during vehicle sleep mode; 2.7 V min supply supports operation down to deeply discharged battery states. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2254QD | Same package and pinout; higher 1500 µV max VIO at 25°C vs. 850 µV for TLV2254AQD. | Acceptable for non-precision applications where offset drift is less critical (e.g., basic voltage monitoring). | Select TLV2254AQD when <1 mV offset stability is required across temperature; TLV2254QD offers cost advantage where precision is relaxed. |
| LMV324QDRQ1 | Automotive-qualified quad op-amp; higher 120 µA/channel supply current, wider 2.7–5.5 V supply range, but no rail-to-rail output. | Suitable for general-purpose buffering where output swing >100 mV from rails is acceptable. | Choose TLV2254AQD for rail-to-rail output and micropower needs; LMV324QDRQ1 preferred when higher drive strength or faster slew rate (1 V/µs) is needed. |
Compared with TLV2254QD and LMV324QDRQ1, TLV2254AQD uniquely combines Q-temp qualification, rail-to-rail output, sub-35 µA/channel quiescent current, and 850 µV max offset - making it optimal for precision, low-power automotive sensor interfaces where dynamic range and long-term stability are critical.
Availability
TLV2254AQD is available at Aetrix Electronics and suitable for automotive engine control units, ADAS sensor modules, and battery management systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2254AQD 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 deep expertise in automotive-grade IC design and manufacturing.
The TLV2254AQD belongs to TI's Advanced LinCMOS™ low-voltage op-amp family, engineered specifically for precision, low-power signal conditioning in automotive and industrial environments where rail-to-rail operation and wide temperature tolerance are mandatory.
FAQ
What is the operating temperature range for TLV2254AQD?
The TLV2254AQD is qualified for automotive applications with a guaranteed operating free-air temperature range of −40°C to 125°C. This Q-temp rating is validated per AEC-Q100 stress test requirements and applies across all electrical specifications in the datasheet, ensuring reliable performance in under-hood and ADAS environments.
Does TLV2254AQD support single-supply operation?
Yes, TLV2254AQD is fully specified for single-supply operation from 2.7 V to 8 V. Its common-mode input voltage range includes the negative rail (GND), and its rail-to-rail output swings within 10 mV of both supply rails - enabling direct interfacing with 3.3 V or 5 V microcontrollers and ADCs without external biasing or level-shifting circuitry.
What is the maximum input offset voltage for TLV2254AQD?
The TLV2254AQD has a maximum input offset voltage of 850 µV at TA = 25°C, and 1000 µV across the full −40°C to 125°C operating range. This specification applies to the 'A' grade variant and is verified per TI's production test flow, making it suitable for precision DC-coupled applications such as thermistor amplification and current sensing.
How does TLV2254AQD differ from TLV2254QD?
TLV2254AQD and TLV2254QD share identical packaging, pinout, and Q-temp qualification, but differ in input offset voltage grading: TLV2254AQD guarantees ≤850 µV max VIO at 25°C, while TLV2254QD specifies ≤1500 µV. Both operate from −40°C to 125°C, but TLV2254AQD is selected for higher-precision applications requiring tighter offset control.
Is TLV2254AQD pin-compatible with other TI quad op-amps like TLV2324?
No, TLV2254AQD is not pin-compatible with TLV2324. While both are 14-pin SOIC quad op-amps, TLV2254AQD uses the industry-standard pinout (OUT A, IN− A, IN+ A, GND, IN+ B, IN− B, OUT B, VDD+, OUT C, IN− C, IN+ C, IN+ D, IN− D, OUT D), whereas TLV2324 uses a different arrangement. Always verify pin mapping using the official TI datasheet before board design or replacement.
TLV2254AQD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.12V/µs
- Gain Bandwidth Product:
- 200 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 140µA (x4 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 8 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLV2254AQD FAQ
1.How can I place an order for TLV2254AQD through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2254AQD 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 TLV2254AQD reliable?
The price and inventory of TLV2254AQD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2254AQD is usually 5 days.
3.What payment methods are accepted for TLV2254AQD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2254AQD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2254AQD?
TLV2254AQD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2254AQD 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 TLV2254AQD?
For technical support, including TLV2254AQD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2254AQD requirements.
6.How does Aetrix verify that TLV2254AQD is sourced from the original manufacturer or authorized distributors?
All TLV2254AQD 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 TLV2254AQD meets industry standards.
7.What is the process for return or replacement of TLV2254AQD?
All TLV2254AQD units undergo pre-shipment inspection (PSI). If there is an issue with TLV2254AQD, 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 TLV2254AQD part is unused and in its original packaging.
Return procedure for TLV2254AQD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2254AQD Tags
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