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Texas Instruments TLV4171IPWR
- Part No.:
- TLV4171IPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLV4171IPWR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:7,322
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Product details
Overview
TLV4171IPWR from Texas Instruments is a quad-channel, rail-to-rail output, low-noise (16 nV/√Hz), low-quiescent-current (525 µA per amplifier) operational amplifier optimized for cost-sensitive industrial and battery-powered systems operating from 2.7 V to 36 V single supply (±1.35 V to ±18 V). It delivers 3 MHz gain bandwidth, ±1 µV/°C typical offset drift, and EMI-hardened inputs with RFI filtering-enabling precision signal conditioning in AC-DC converters, power modules, and TFT-LCD drive circuits.
For engineers reviewing the TLV4171IPWR datasheet, TLV4171IPWR pinout, TLV4171IPWR application, or TLV4171IPWR equivalent, key selection considerations include its 14-pin TSSOP package, quad-channel integration, rail-to-rail output swing within 90–160 mV of rails, stable operation with up to 200-pF capacitive loads, and extended common-mode range (V− − 0.1 V to V+ − 2 V).
Technical Context
The TLV4171IPWR employs a P-channel input stage enabling rail-to-rail input operation down to 100 mV below V− and up to 2 V below V+, with phase-reversal protection that clamps instead of inverting when inputs exceed common-mode limits. Its internal ESD protection includes back-to-back input diodes and current-steering paths tied to supply rails, rated for ±4000-V HBM and ±750-V CDM.
Designed for wide-supply flexibility, it maintains specified performance across –40°C to +125°C and supports unity-gain stability with 200-pF loads without external compensation. The quad architecture shares identical electrical specs across channels, allowing channel-to-channel matching in multi-path analog front-ends for test equipment and active filters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 36 V single supply (±1.35 V to ±18 V): enables direct interface with 3.3-V, 5-V, 12-V, 24-V, and 36-V industrial power rails without level-shifting. |
| Gain Bandwidth Product | 3.0 MHz: supports stable closed-loop amplification up to ~300 kHz at G = 10, suitable for sensor signal conditioning and active filter design. |
| Input Offset Drift | ±1 µV/°C (typical): ensures < ±12 µV total drift over –40°C to +125°C, critical for high-accuracy DC-coupled measurements. |
| Quiescent Current | 525 µA per amplifier (max 695 µA): allows four independent amplifiers to operate on < 2.8 mA total, ideal for battery-powered instruments. |
| Input Voltage Noise | 16 nV/√Hz at 1 kHz: provides low-noise amplification for transducer signals without requiring additional noise-filtering stages. |
| Common-Mode Rejection | 105 dB (typical): rejects interference from shared ground paths in noisy industrial environments like inverters and power modules. |
| Output Swing | Rail-to-rail: delivers >99% of supply voltage swing (e.g., 17.91 V out of 18 V) into 10-kΩ load, maximizing dynamic range in single-supply systems. |
| Capacitive Load Drive | Stable with ≤200 pF: eliminates need for isolation resistors in most PCB trace and ADC-input configurations. |
Pinout & Package
TLV4171IPWR is housed in a 14-pin TSSOP package (5.00 mm × 4.40 mm body size) with exposed pad for thermal enhancement. Pin numbering follows standard JEDEC top-view orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output: drives external load or feedback network; rail-to-rail capable with 90–160 mV headroom. |
| 2 | –IN A | Inverting input, channel A: accepts feedback signal in inverting configurations; high-impedance (10¹² Ω || 3 pF). |
| 3 | +IN A | Noninverting input, channel A: connects to reference or sensor; operates down to V− − 0.1 V. |
| 4 | V+ | Positive supply rail: accepts 2.7–36 V; decoupling capacitor required near pin for stability. |
| 5 | +IN B | Noninverting input, channel B: electrically identical to +IN A; supports independent dual-signal processing. |
| 6 | –IN B | Inverting input, channel B: matches –IN A characteristics; enables matched gain stages. |
| 7 | OUT B | Amplifier B output: fully independent output; no crosstalk with OUT A under normal operation. |
| 8 | OUT C | Amplifier C output: third independent output; supports three-channel signal chains (e.g., RGB LCD drive). |
| 9 | –IN C | Inverting input, channel C: identical bias current (±10 pA) and CMRR as other channels. |
| 10 | +IN C | Noninverting input, channel C: extends full rail-to-rail input capability to third amplifier. |
| 11 | V− | Negative supply rail: referenced to system ground in single-supply mode; must be connected. |
| 12 | +IN D | Noninverting input, channel D: completes quad-channel set; enables simultaneous four-sensor readout. |
| 13 | –IN D | Inverting input, channel D: matches all input specs; supports differential-to-single-ended conversion per channel. |
| 14 | OUT D | Amplifier D output: fourth rail-to-rail output; usable for redundancy, averaging, or multi-path filtering. |
Key Features
| Feature | Design Value |
|---|---|
| EMI-hardened inputs with RFI filtering | Reduces susceptibility to radiated RF interference (e.g., from switching power supplies or wireless modules) without external ferrite beads or RC filters. |
| No phase reversal beyond common-mode range | Prevents catastrophic output inversion during transient overvoltage events-critical in currency counters and test equipment where input signals may overshoot. |
| Rail-to-rail output swing | Delivers maximum signal amplitude from single supply, eliminating need for dual-rail generation in space-constrained TFT-LCD driver boards. |
| Low input bias current (±10 pA) | Minimizes voltage error in high-impedance sensor interfaces (e.g., piezoelectric transducers), preserving signal integrity without guard traces. |
| Specified from –40°C to +125°C | Guarantees performance in automotive under-hood, industrial motor control, and outdoor power module applications without derating. |
| Unity-gain stable with 200-pF load | Enables direct connection to long PCB traces or ADC input capacitance without stability-compromising series resistors. |
Applications
| AC-DC Converters | Power Modules |
|---|---|
Use Scenario: Monitoring and regulating output voltage/current in isolated flyback or LLC resonant converters. IC Role / Device Role / Timing Role: Precision error amplifier in feedback loop, comparing sensed output against reference. Use Value: Low offset drift (±1 µV/°C) ensures stable regulation across temperature; rail-to-rail output maximizes control range of optocoupler or PWM controller input. | Use Scenario: Signal conditioning for current sensing, temperature monitoring, and gate-drive biasing in modular power supplies. IC Role / Device Role / Timing Role: Quad-channel configuration enables simultaneous amplification of four independent analog signals (e.g., phase currents, heatsink temp, bus voltage, auxiliary supply). Use Value: 525 µA per amplifier minimizes self-heating in thermally dense modules; EMI-hardened inputs reject noise from high-dV/dt switching nodes. |
| TFT-LCD Drive Circuits | Battery-Powered Instruments |
Use Scenario: Generating precise gamma-correction voltages and source-driver reference levels in display timing controllers. IC Role / Device Role / Timing Role: Rail-to-rail output buffer driving high-capacitance LCD column lines or DAC reference ladders. Use Value: 3 MHz GBW supports fast settling for video-rate updates; 16 nV/√Hz noise prevents visible banding or flicker in grayscale transitions. | Use Scenario: Amplifying low-level sensor outputs (e.g., thermocouples, strain gauges) in handheld multimeters or portable gas analyzers. IC Role / Device Role / Timing Role: Low-power instrumentation amplifier front-end with programmable gain and filtering. Use Value: 2.8 mA total quiescent current (4 × 525 µA) extends battery life; ±10 pA input bias avoids errors in high-Z sensor bridges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4171IPWR | Same pinout, identical specs except higher quiescent current (1.2 mA per amp) and wider supply range (up to ±22 V). | Higher power consumption makes OPA4171IPWR less suitable for battery-powered instruments but better for high-voltage industrial sensors. | Select TLV4171IPWR for ultra-low-power quad designs; choose OPA4171IPWR only if >36 V supply or enhanced ESD (±4 kV HBM) is required. |
| LM324DR | Quad op-amp with lower bandwidth (1.2 MHz), higher offset (±3 mV), no rail-to-rail output, and no EMI hardening. | Lacks precision and noise performance needed for transducer or LCD applications; limited to basic comparator or low-speed buffering. | LM324DR is a cost-optimized alternative only for non-critical, low-frequency (<100 kHz), low-accuracy applications where power and noise are not constraints. |
Compared with OPA4171IPWR and LM324DR, TLV4171IPWR uniquely balances ultra-low quiescent current (525 µA), 3-MHz bandwidth, rail-to-rail output, and EMI-hardened inputs-making it the optimal choice for space- and power-constrained industrial and portable systems requiring precision analog signal conditioning.
Availability
TLV4171IPWR is available at Aetrix Electronics and suitable for AC-DC converters, power modules, and battery-powered instruments requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TLV4171IPWR 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 company specializing in analog and embedded processing technologies, with leadership in precision amplifiers, power management, and signal chain solutions.
The TLVx171 product line was designed for cost-sensitive industrial and personal electronics systems requiring EMI-hardened, low-noise, single-supply op-amps operating from 2.7 V to 36 V-with emphasis on rail-to-rail output, low drift, and wide temperature range (–40°C to +125°C).
FAQ
What is the maximum capacitive load the TLV4171IPWR can drive while remaining stable?
The TLV4171IPWR is unity-gain stable with capacitive loads up to 200 pF, as confirmed in the datasheet's Electrical Characteristics and Typical Characteristics sections. This allows direct connection to ADC input capacitors, long PCB traces, or LCD column lines without external isolation resistors. For loads exceeding 200 pF, a series output resistor (e.g., 50 Ω) is recommended to maintain phase margin and prevent peaking or oscillation. Stability is verified across the full –40°C to +125°C temperature range and 2.7–36 V supply range.
Does the TLV4171IPWR support true rail-to-rail input operation?
The TLV4171IPWR supports rail-to-rail input operation down to 100 mV below the negative rail (V− − 0.1 V) and up to 2 V below the positive rail (V+ − 2 V) for full-spec performance. It can accept inputs extending 100 mV beyond V+, but with reduced CMRR and PSRR within the top 2 V. This P-channel input stage enables accurate sensing in single-supply systems where signals approach or slightly exceed supply rails-common in transducer interfaces and power supply monitoring circuits using TLV4171IPWR.
What is the typical quiescent current per amplifier in the TLV4171IPWR?
The typical quiescent current per amplifier in the TLV4171IPWR is 525 µA, with a maximum of 695 µA over the full –40°C to +125°C temperature range and 2.7–36 V supply range. This ultra-low current enables four independent amplifiers to operate on under 2.8 mA total, making TLV4171IPWR ideal for battery-powered instruments, portable test equipment, and energy-harvesting systems where standby power budget is critical.
How does the TLV4171IPWR handle input overvoltage conditions that cause phase reversal in other op-amps?
The TLV4171IPWR incorporates internal phase-reversal protection that prevents output inversion when inputs exceed the common-mode range. Instead of reversing polarity, the output clamps to the appropriate rail-ensuring predictable behavior during transients in applications like currency counters or test equipment. This feature is validated in Figure 16 ("No Phase Reversal") of the SBOS783 datasheet and applies across the full operating temperature and supply range of TLV4171IPWR.
Is the TLV4171IPWR pin-compatible with other members of the TLVx171 family?
The TLV4171IPWR is not pin-compatible with TLV171 (5-pin SOT-23 or 8-pin SOIC) or TLV2171 (8-pin SOIC/VSSOP) due to its 14-pin TSSOP footprint and quad-channel pinout. However, it shares identical electrical specifications-including offset voltage, drift, noise, bandwidth, and supply range-with those devices. This allows seamless architectural scaling: TLV171 for single-channel, TLV2171 for dual-channel, and TLV4171IPWR for quad-channel implementations without redesigning analog circuitry.
TLV4171IPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm 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-TSSOP
TLV4171IPWR FAQ
1.How can I place an order for TLV4171IPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV4171IPWR 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 TLV4171IPWR reliable?
The price and inventory of TLV4171IPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV4171IPWR is usually 5 days.
3.What payment methods are accepted for TLV4171IPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV4171IPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV4171IPWR?
TLV4171IPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV4171IPWR 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 TLV4171IPWR?
For technical support, including TLV4171IPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV4171IPWR requirements.
6.How does Aetrix verify that TLV4171IPWR is sourced from the original manufacturer or authorized distributors?
All TLV4171IPWR 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 TLV4171IPWR meets industry standards.
7.What is the process for return or replacement of TLV4171IPWR?
All TLV4171IPWR units undergo pre-shipment inspection (PSI). If there is an issue with TLV4171IPWR, 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 TLV4171IPWR part is unused and in its original packaging.
Return procedure for TLV4171IPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV4171IPWR Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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