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Texas Instruments TLV4171IDR
- Part No.:
- TLV4171IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV4171IDR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:984
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Product details
Overview
TLV4171IDR from Texas Instruments is a quad-channel, rail-to-rail output operational amplifier optimized for cost-sensitive industrial and personal electronics systems. It operates from 2.7 V to 36 V single supply (±1.35 V to ±18 V), delivers 3 MHz gain bandwidth, 16 nV/√Hz input voltage noise, ±1 μV/°C typical offset drift, and 525 µA per amplifier quiescent current - enabling precision signal conditioning in battery-powered instruments and AC-DC converters.
For engineers reviewing the TLV4171IDR datasheet, TLV4171IDR pinout, TLV4171IDR application, or TLV4171IDR equivalent, this page provides verified electrical specifications, SOIC-14 package details, functional role in transducer interfaces and active filters, and validated alternative options for low-power, EMI-hardened op amp selection.
Technical Context
The TLV4171IDR implements a proprietary input stage with phase-reversal protection, allowing common-mode inputs up to 100 mV beyond the positive rail without output inversion. Its EMI-hardened architecture includes RFI-filtered inputs and internal back-to-back diode clamping on all inputs.
Specified across –40°C to +125°C, it maintains 105 dB typical CMRR and PSRR, 94 dB minimum open-loop gain, and unity-gain stability with up to 200 pF capacitive load - supporting robust performance in noisy power module and inverter feedback loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 2.7 V to 36 V single supply - supports direct interface with 24-V industrial rails and low-voltage battery systems without level-shifting. |
| Gain Bandwidth Product | 3.0 MHz - enables stable closed-loop operation at G = +10 up to ~300 kHz for active filter and sensor amplification. |
| Input Voltage Noise Density | 16 nV/√Hz at 1 kHz - preserves SNR in high-gain transducer signal chains where thermal noise dominates. |
| Offset Drift | ±1 μV/°C typical - ensures ≤12 μV total drift over –40°C to +125°C, critical for uncalibrated temperature-stable instrumentation. |
| Quiescent Current | 525 µA per amplifier - allows four independent channels in space-constrained, low-power designs like TFT-LCD drive circuits. |
| Common-Mode Input Range | (V−) − 0.1 V to (V+) − 2 V - supports single-supply sensing of signals referenced to ground while rejecting supply ripple. |
| Output Swing | Within 90 mV of negative rail and 160 mV of positive rail (VS = ±18 V) - delivers true rail-to-rail capability for maximizing dynamic range in 3.3-V or 5-V data acquisition. |
Pinout & Package
TLV4171IDR is housed in a 14-pin SOIC package (body size 8.65 mm × 3.91 mm), optimized for automated assembly and thermal dissipation in industrial PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | OUT A, OUT B, OUT C, OUT D | Amplifier outputs - each drives ≥10 kΩ load with rail-to-rail swing; requires series resistor for >200 pF capacitive loads. |
| 2, 3, 6, 5, 9, 10, 13, 12 | –IN A/+IN A, –IN B/+IN B, –IN C/+IN C, –IN D/+IN D | Differential input pairs - EMI-hardened with RFI filtering; inputs tolerate 100 mV beyond V− and up to V+ (reduced performance within 2 V of V+). |
| 4 | V+ | Positive supply terminal - accepts 2.7 V to 36 V; must be decoupled with ≥0.1 µF ceramic capacitor near pin. |
| 11 | V− | Negative supply terminal - referenced to system ground in single-supply use; supports true negative rail operation down to –18 V. |
Key Features
| Feature | Design Value |
|---|---|
| EMI-hardened inputs | Integrated RFI filtering reduces susceptibility to 100-MHz–2-GHz interference in motor drive and power converter environments. |
| No phase reversal | Internal protection prevents output inversion when inputs exceed common-mode range - eliminates latch-up risk in transducer overvoltage events. |
| Rail-to-rail output | Swings within 90 mV of V− and 160 mV of V+ at ±18 V - maximizes usable ADC input range in 12-bit+ data acquisition systems. |
| Low input bias current | ±10 pA max - enables high-impedance sensor interfacing (e.g., pH electrodes, piezoresistive bridges) without significant offset error. |
| Wide temperature range | Specified from –40°C to +125°C - qualified for under-hood automotive modules and industrial inverters without derating. |
Applications
| Transducer Signal Conditioning | AC-DC Converter Feedback |
|---|---|
|
Use Scenario: Amplifying low-level mV outputs from strain gauges, thermocouples, or pressure sensors in factory automation equipment. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier front-end with low drift and EMI immunity. Use Value: ±1 μV/°C drift and 16 nV/√Hz noise maintain <0.1% measurement accuracy across –40°C to +85°C ambient. |
Use Scenario: Isolating and scaling voltage/current feedback signals in 1–3 kW switched-mode power supplies. IC Role / Device Role / Timing Role: Error amplifier in voltage-mode control loop with rail-to-rail output driving PWM comparator input. Use Value: 3 MHz GBW and 1.5 V/µs slew rate support fast transient response (<10 µs settling) during load steps. |
| TFT-LCD Source Driver Bias | Battery-Powered Test Equipment |
|
Use Scenario: Generating stable grayscale reference voltages for column driver ICs in medical display panels. IC Role / Device Role / Timing Role: Quad-channel buffer providing matched DC offsets to 4 independent analog voltage rails. Use Value: Channel-to-channel offset matching <1 mV and 525 µA per channel enable ultra-low-power bias generation with <10 ppm drift. |
Use Scenario: Front-end signal amplification and anti-aliasing filtering in handheld multimeters and portable oscilloscopes. IC Role / Device Role / Timing Role: Low-noise, low-quiescent-current op amp for programmable gain stages and active filter sections. Use Value: 2.7 V minimum supply and 525 µA/channel allow >100-hour operation on two AA cells while maintaining 16-bit ENOB. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4182IDR | Lower offset (±4 µV max), higher GBW (10 MHz), but 1.3 mA per amplifier - 2.5× higher quiescent current than TLV4171IDR. | Better for high-precision, wideband applications (e.g., 16-bit DAC buffers); less suitable for battery life-critical designs. | Select OPA4182IDR only when sub-10 µV offset and >5 MHz bandwidth are mandatory - not a drop-in replacement due to power and layout constraints. |
| LM324DR | Wider supply range (3–32 V), but higher noise (40 nV/√Hz), no phase-reversal protection, and 700 µA per amplifier - lacks EMI hardening and rail-to-rail output. | Suitable for cost-driven, non-critical general-purpose amplification (e.g., simple comparators, LED drivers) where EMI immunity is not required. | Choose LM324DR only for legacy designs or non-industrial environments - TLV4171IDR offers superior noise, drift, and reliability in modern industrial systems. |
Compared with OPA4182IDR and LM324DR, TLV4171IDR uniquely balances low power (525 µA), EMI resilience, and precision (±1 μV/°C drift) in a quad SOIC package - making it optimal for next-generation power modules and portable test gear where thermal and EMC margins are constrained.
Availability
TLV4171IDR is available at Aetrix Electronics and suitable for AC-DC converters, battery-powered instruments, and industrial transducer interfaces requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for TLV4171IDR 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 op amp innovation and broad industrial qualification expertise.
The TLVx171 family - including TLV4171IDR - was designed specifically for cost-sensitive, EMI-prone systems such as power modules, inverters, and portable instrumentation requiring wide-supply, low-drift, and phase-reversal-protected amplification.
FAQ
What is the maximum capacitive load the TLV4171IDR can drive without oscillation?
The TLV4171IDR is unity-gain stable with up to 200 pF capacitive load when properly decoupled and laid out. Driving heavier loads (e.g., >200 pF) requires an isolation resistor (typically 47–100 Ω) in series with the output to maintain phase margin. This design constraint is confirmed in the Electrical Characteristics table and Typical Characteristics Figure 14–15 of the SBOS783 datasheet for TLV4171IDR.
Does TLV4171IDR support true rail-to-rail input operation?
TLV4171IDR supports rail-to-rail output but not full rail-to-rail input: its common-mode input range extends 100 mV below V− and to within 2 V of V+, with reduced performance (e.g., increased offset, lower CMRR) in the top 2 V. This behavior is explicitly specified in Section 7.4.1 of the TLV4171IDR datasheet and validated across –40°C to +125°C.
What is the guaranteed operating temperature range for TLV4171IDR?
TLV4171IDR is fully specified and tested from –40°C to +125°C ambient temperature, with electrical characteristics guaranteed across this range per Section 6.3 (Recommended Operating Conditions) and Section 6.7 (Electrical Characteristics) of the SBOS783 datasheet. The device remains functional from –55°C to +150°C, though parameters are not guaranteed outside the –40°C to +125°C range.
How does TLV4171IDR handle input overvoltage beyond the supply rails?
TLV4171IDR features internal phase-reversal protection that prevents output inversion when inputs exceed the common-mode range - instead, the output limits cleanly into the appropriate rail. This is confirmed in Figure 16 ("No Phase Reversal") and Section 7.3.2 of the TLV4171IDR datasheet, distinguishing it from standard op amps that exhibit catastrophic output reversal under overvoltage conditions.
Is TLV4171IDR pin-compatible with other quad op amps like LM324 or TLV2464?
No - TLV4171IDR uses a non-standard pinout optimized for noise and layout: pins 1, 7, 8, 14 are outputs; pins 2/3, 5/6, 9/10, 12/13 are input pairs; V+ is pin 4 and V− is pin 11. This differs from LM324 (V+ = pin 4, V− = pin 11, outputs at 1/7/8/14) and TLV2464 (V+ = pin 8, V− = pin 4). Direct replacement requires PCB redesign.
TLV4171IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.5V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 pA
- Voltage - Input Offset:
- 750 µV
- Current - Supply:
- 525µA (x4 Channels)
- Current - Output / Channel:
- 25 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
TLV4171IDR FAQ
1.How can I place an order for TLV4171IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV4171IDR 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 TLV4171IDR reliable?
The price and inventory of TLV4171IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV4171IDR is usually 5 days.
3.What payment methods are accepted for TLV4171IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV4171IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV4171IDR?
TLV4171IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV4171IDR 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 TLV4171IDR?
For technical support, including TLV4171IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV4171IDR requirements.
6.How does Aetrix verify that TLV4171IDR is sourced from the original manufacturer or authorized distributors?
All TLV4171IDR 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 TLV4171IDR meets industry standards.
7.What is the process for return or replacement of TLV4171IDR?
All TLV4171IDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV4171IDR, 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 TLV4171IDR part is unused and in its original packaging.
Return procedure for TLV4171IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV4171IDR Tags
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LM358DT
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LM2904DR
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LM324PWR
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