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Texas Instruments TLV2254QDREP
- Part No.:
- TLV2254QDREP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2254QDREP.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,796
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Product details
Overview
TLV2254QDREP from Texas Instruments is a quad, rail-to-rail output, micropower operational amplifier optimized for low-voltage (2.7 V to 16 V) single- or split-supply operation. It delivers 19 nV/√Hz input voltage noise at 1 kHz, 1 pA typical input bias current, 34 µA per channel supply current, and 850 µV maximum input offset voltage at 25°C - enabling precision signal conditioning in battery-powered sensor interfaces and analog front-ends.
For engineers reviewing the TLV2254QDREP datasheet, TLV2254QDREP pinout, TLV2254QDREP application, or TLV2254QDREP equivalent, this page provides verified electrical specifications, SOIC-14 package terminal mapping, rail-to-rail output behavior at 3 V/5 V, ESD-hardened design (150 V MM), and validated alternatives for industrial temperature-range (−40°C to 125°C) analog signal chains.
Technical Context
The TLV2254QDREP 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). Its common-mode input voltage range extends to the negative rail, supporting ground-referenced sensing in single-supply configurations.
It is fully characterized across −40°C to 125°C with guaranteed 850 µV max VIO, 65 dB min CMRR, and 80 dB min PSRR at 25°C. The device features internal ESD protection exceeding 150 V (Machine Model) and operates stably with capacitive loads up to 100 pF without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 16 V - supports direct integration into 3 V, 5 V, and higher industrial rails without level-shifting. |
| Input Offset Voltage (Max) | 850 µV at 25°C - enables DC-coupled amplification of mV-level sensor outputs with <0.1% gain error. |
| Supply Current (Per Channel) | 34 µA typ - allows four-channel operation at <136 µA total, ideal for multi-sensor nodes with 10+ year battery life. |
| Input Bias Current (Typ) | 1 pA - preserves signal integrity when amplifying high-impedance sources (e.g., piezoelectric transducers, pH electrodes). |
| Output Swing | Rail-to-rail - delivers full dynamic range into ADCs (e.g., 0–3 V into 3 V SAR ADC), maximizing SNR utilization. |
| Input Voltage Noise | 19 nV/√Hz at 1 kHz - 4× lower than prior micropower CMOS op-amps, critical for low-frequency precision measurement. |
| Operating Temperature | −40°C to 125°C - qualified per JEDEC standards including HAST, temperature cycling, and intermetallic life testing. |
Pinout & Package
TLV2254QDREP is housed in a 14-pin SOIC (D) package with standard 1.27 mm pitch, 8.65 mm × 3.91 mm footprint, and exposed pad not present. Pin numbering follows TI's top-view convention with Pin 1 marked by dot or bevel.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT1 | Amplifier 1 output - drives loads up to ±50 mA; rail-to-rail swing ensures full-scale ADC interface. |
| 2 | IN−1 | Inverting input of Amp 1 - high-impedance (1012 Ω) node for feedback networks or differential sensing. |
| 3 | IN+1 | Non-inverting input of Amp 1 - accepts signals from 0 V to VDD−1.3 V; includes negative rail. |
| 4 | VDD− / GND | Negative supply or ground reference - shared return path for all four amplifiers; must be low-impedance. |
| 5 | IN+2 | Non-inverting input of Amp 2 - electrically isolated from other inputs; supports independent sensor channels. |
| 6 | IN−2 | Inverting input of Amp 2 - matched bias current to IN−1 for common-mode rejection in dual-channel designs. |
| 7 | OUT2 | Amplifier 2 output - identical performance to OUT1; enables dual instrumentation amplifier configurations. |
| 8 | VDD+ | Positive supply - powers all four amplifiers; decoupling capacitor (0.1 µF) required at pin. |
| 9 | OUT3 | Amplifier 3 output - supports three-channel signal conditioning (e.g., 3-phase motor current sensing). |
| 10 | IN−3 | Inverting input of Amp 3 - maintains 1 pA bias current spec across full temperature range. |
| 11 | IN+3 | Non-inverting input of Amp 3 - compatible with single-ended or differential input topologies. |
| 12 | IN+4 | Non-inverting input of Amp 4 - enables fourth independent channel for redundancy or multi-parameter sensing. |
| 13 | IN−4 | Inverting input of Amp 4 - matches IN−1/2/3 for consistent CMRR and offset tracking. |
| 14 | OUT4 | Amplifier 4 output - completes quad configuration; supports simultaneous sampling of four analog signals. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Swings within 10 mV of VDD+ and VDD− at light loads - eliminates need for level-shifting before 3 V ADCs. |
| Ultra-low input bias current | 1 pA typical at 25°C - prevents loading errors in >1 GΩ source impedances (e.g., electret microphones, photodiode amps). |
| Micropower operation | 34 µA per channel - enables always-on monitoring in energy-harvesting systems with µW budgets. |
| Low-noise architecture | 19 nV/√Hz at 1 kHz - reduces integrated noise floor in 0.1–10 Hz bandwidths used in medical and environmental sensors. |
| Extended temperature qualification | −40°C to 125°C with HAST, temperature cycle, and intermetallic life testing - suitable for under-hood automotive and industrial control. |
| ESD-hardened design | 150 V Machine Model rating - withstands handling and board assembly without external protection diodes. |
Applications
| Industrial Sensor Signal Conditioning | Portable Medical Instrumentation |
|---|---|
|
Use Scenario: Amplifying low-level mV outputs from RTDs, thermocouples, and strain gauges in PLC I/O modules. IC Role / Device Role / Timing Role: Quad op-amp configured as four independent instrumentation preamps with gain and filtering. Use Value: 850 µV max VIO and 65 dB CMRR ensure <0.05% measurement error over −40°C to 125°C ambient. |
Use Scenario: Front-end amplification of ECG, EEG, and pulse oximetry signals in handheld patient monitors. IC Role / Device Role / Timing Role: Low-noise, low-power buffer and filter stage preceding 12-bit ADC sampling at 1–10 kSPS. Use Value: 19 nV/√Hz noise and 1 pA input bias preserve microvolt-level biopotential fidelity without battery drain. |
| Battery-Powered Environmental Sensors | Analog Front-End for Precision ADCs |
|
Use Scenario: Signal conditioning for CO₂, humidity, and air quality sensors in wireless IoT nodes. IC Role / Device Role / Timing Role: Four-channel sensor interface with rail-to-rail output driving SAR ADC reference buffers. Use Value: 136 µA total quiescent current enables >5-year operation on a single CR2032 coin cell in sleep-wake cycles. |
Use Scenario: Driving the input of 16-bit SAR ADCs (e.g., ADS8860) in data acquisition systems. IC Role / Device Role / Timing Role: Output buffer and settling amplifier ensuring <1 LSB error during ADC aperture time. Use Value: Rail-to-rail swing and 60 kHz small-signal bandwidth guarantee full-scale settling in <1 µs at 3 V supply. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2254AQDREP | 850 µV max VIO (vs. 1500 µV for TLV2254QDREP); same SOIC-14 package and pinout. | Higher DC precision required in closed-loop sensor calibration; tighter VIO spec reduces system calibration frequency. | Select TLV2254AQDREP when absolute DC accuracy outweighs cost sensitivity in production-grade instrumentation. |
| OPA2333PWR | Zero-drift architecture; 0.02 µV/°C drift vs. 0.5 µV/°C for TLV2254QDREP; 17 µA/ch supply current. | Long-term drift-critical applications (e.g., laboratory meters, calibration equipment) where VIO stability >1000 hours matters. | Choose OPA2333PWR only if sub-µV/°C drift is mandatory; TLV2254QDREP offers better noise (19 vs. 57 nV/√Hz) and lower cost. |
Compared with TLV2254AQDREP, TLV2254QDREP trades 650 µV higher VIO for broader availability and lower unit cost in high-volume industrial designs; versus OPA2333PWR, it delivers superior noise performance and simpler external component count at the expense of long-term drift stability.
Availability
TLV2254QDREP is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical devices, and battery-powered environmental monitoring systems requiring stable component supply across extended temperature ranges.
Supply support for TLV2254QDREP 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 expertise in precision op-amps and industrial-grade signal chain solutions.
The TLV2254QDREP belongs to TI's TLV225x family of micropower, rail-to-rail output op-amps designed specifically for low-voltage, high-impedance, and extended-temperature applications in industrial automation and portable instrumentation.
FAQ
What is the maximum operating temperature range for TLV2254QDREP?
The TLV2254QDREP is qualified for continuous operation from −40°C to 125°C. This extended temperature range is validated per JEDEC standards including Highly Accelerated Stress Test (HAST), temperature cycling, and intermetallic life testing - making TLV2254QDREP suitable for under-hood automotive, industrial control, and outdoor environmental sensor deployments where thermal reliability is critical.
Does TLV2254QDREP support true rail-to-rail input capability?
No, TLV2254QDREP does not feature rail-to-rail input. Its common-mode input voltage range extends to the negative rail (VDD−) but stops 1.3 V below the positive rail (VDD+ − 1.3 V) under load. However, its rail-to-rail output swing - confirmed down to within 10 mV of both supply rails - ensures full dynamic range utilization when driving ADCs or other downstream stages.
Can TLV2254QDREP drive capacitive loads without oscillation?
Yes, TLV2254QDREP is stable with capacitive loads up to 100 pF when configured as a unity-gain voltage follower, as verified by phase margin (63°) and gain margin (15 dB) measurements in the datasheet. For loads >100 pF, external series resistance (e.g., 10–50 Ω) at the output is recommended to maintain stability without degrading bandwidth.
How does the 150 V Machine Model ESD rating impact PCB layout for TLV2254QDREP?
The 150 V Machine Model ESD rating means TLV2254QDREP incorporates on-die protection sufficient for standard automated assembly and handling environments - eliminating the need for external TVS diodes on input/output pins in most industrial applications. However, direct exposure to human-body-model (HBM) events (>2 kV) still requires standard ESD-safe practices during prototyping and field service.
Is TLV2254QDREP pin-compatible with TLV2252QDREP?
No, TLV2254QDREP (14-pin SOIC) is not pin-compatible with TLV2252QDREP (8-pin SOIC). The TLV2254QDREP integrates four independent amplifiers with dedicated input/output terminals per channel, while TLV2252QDREP contains only two amplifiers. Board redesign is required to substitute one for the other due to differing pin counts, functions, and package footprints.
TLV2254QDREP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LinCMOS™
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 68µA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.7 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:
- 14-SOIC
TLV2254QDREP FAQ
1.How can I place an order for TLV2254QDREP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2254QDREP 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 TLV2254QDREP reliable?
The price and inventory of TLV2254QDREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2254QDREP is usually 5 days.
3.What payment methods are accepted for TLV2254QDREP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2254QDREP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2254QDREP?
TLV2254QDREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2254QDREP 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 TLV2254QDREP?
For technical support, including TLV2254QDREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2254QDREP requirements.
6.How does Aetrix verify that TLV2254QDREP is sourced from the original manufacturer or authorized distributors?
All TLV2254QDREP 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 TLV2254QDREP meets industry standards.
7.What is the process for return or replacement of TLV2254QDREP?
All TLV2254QDREP units undergo pre-shipment inspection (PSI). If there is an issue with TLV2254QDREP, 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 TLV2254QDREP part is unused and in its original packaging.
Return procedure for TLV2254QDREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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