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Texas Instruments TLV4171ID
- Part No.:
- TLV4171ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV4171ID.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:152
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Product details
Overview
TLV4171ID 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 personal electronics systems operating from 2.7 V to 36 V single supply. It delivers 3 MHz gain bandwidth, ±1 µV/°C typical offset drift, and EMI-hardened inputs with RFI filtering - deployed in AC-DC converters, battery-powered instruments, and TFT-LCD drive circuits.
For engineers reviewing the TLV4171ID datasheet, TLV4171ID pinout, TLV4171ID application, or TLV4171ID equivalent, key selection considerations include its 14-pin SOIC package, quad-channel integration, rail-to-rail output swing within 160 mV of rails, stable operation with 200-pF capacitive loads, and extended common-mode range (V– – 0.1 V to V+ – 2 V).
Technical Context
The TLV4171ID 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 both single-supply (2.7 V to 36 V) and dual-supply (±1.35 V to ±18 V) configurations without recalibration. The quad architecture shares identical electrical specs across channels, enabling consistent channel matching in multi-stage signal conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 2.7 V to 36 V single supply - enables direct interface with 3.3 V, 5 V, 12 V, 24 V, and 32 V industrial rails without level-shifting. |
| Gain Bandwidth | 3 MHz - supports stable closed-loop amplification up to ~300 kHz at G = 10, suitable for active filters and sensor signal conditioning. |
| Input Offset Drift | ±1 µV/°C (typical) - ensures < ±12 µV total drift over –40°C to +125°C, critical for precision DC-coupled measurement paths. |
| Quiescent Current | 525 µA per amplifier - allows four independent amplifiers to operate on < 2.1 mA total, ideal for battery-powered instrumentation. |
| Output Swing | Rail-to-rail, within 160 mV of V+ and 90 mV of V– at ±18 V - maximizes dynamic range in single-supply data acquisition front-ends. |
| Capacitive Load Drive | Stable with ≤200 pF - permits direct driving of ADC input capacitors, long PCB traces, or small bypass networks without external isolation resistors. |
| Common-Mode Range | V– – 0.1 V to V+ – 2 V - supports sensing signals referenced to ground in high-side current monitor configurations. |
Pinout & Package
TLV4171ID is housed in a 14-pin SOIC package (8.65 mm × 3.91 mm body size), optimized for automated assembly and thermal dissipation in space-constrained industrial PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives external load or next-stage input; rail-to-rail capable with 25 mA short-circuit current limit. |
| 2 | –IN A | Inverting input, channel A - accepts feedback network or differential signal; high-impedance (10¹² Ω || 3 pF) minimizes loading on source. |
| 3 | +IN A | Noninverting input, channel A - connects to reference, sensor, or signal source; supports common-mode voltages down to V– – 0.1 V. |
| 4 | V+ | Positive supply rail - supplies all four amplifiers; must be decoupled locally with ≥100 nF ceramic capacitor. |
| 5 | +IN B | Noninverting input, channel B - electrically identical to +IN A; enables independent biasing for multi-channel transducer interfaces. |
| 6 | –IN B | Inverting input, channel B - used for feedback or differential pair; matched offset and drift to channel A ensure inter-channel consistency. |
| 7 | OUT B | Amplifier B output - fully independent output stage; no crosstalk with channel A under normal operation. |
| 8 | OUT C | Amplifier C output - provides third analog path without additional IC footprint; supports triple-signal processing in compact designs. |
| 9 | –IN C | Inverting input, channel C - shares same input structure as A/B; validated for EMI-hardened operation per TI SBOS783 test data. |
| 10 | +IN C | Noninverting input, channel C - supports rail-to-rail input common-mode range; usable for high-side current sense with V– = GND. |
| 11 | V– | Negative supply rail - serves as reference for all four amplifiers; must be connected directly to system ground or negative rail. |
| 12 | +IN D | Noninverting input, channel D - enables fourth independent signal path; identical CMRR (105 dB typ.) and PSRR (105 dB typ.) to other channels. |
| 13 | –IN D | Inverting input, channel D - supports unity-gain buffer or inverting amplifier topologies; low 10 pA bias current preserves high-Z sensor accuracy. |
| 14 | OUT D | Amplifier D output - completes quad functionality; slew rate of 1.5 V/µs ensures fidelity for 10-V step responses within 10 µs (0.01% settling). |
Key Features
| Feature | Design Value |
|---|---|
| EMI-hardened inputs with RFI filtering | Reduces susceptibility to GSM, Wi-Fi, and switching regulator noise - verified by EMIRR IN+ > 80 dB at 900 MHz per Figure 25. |
| Rail-to-rail output swing | Delivers full dynamic range into 10-kΩ loads - eliminates need for level-shifting in 3.3 V or 5 V microcontroller ADC interfaces. |
| No phase reversal on overdrive | Prevents catastrophic output inversion during transient overvoltage - outputs clamp safely instead of reversing polarity in noninverting configurations. |
| Low 16 nV/√Hz input voltage noise | Enables clean amplification of µV-level sensor signals (e.g., thermocouples, strain gauges) without adding measurable noise floor. |
| Unity-gain stable with 200-pF load | Eliminates need for output isolation resistors in most layout scenarios - simplifies design and improves signal integrity for ADC drivers. |
Applications
| AC-DC Converters | Battery-Powered Instruments |
|---|---|
Use Scenario: Voltage and current regulation feedback loops in isolated flyback and forward converters. IC Role / Device Role / Timing Role: Quad op amp implements error amplifier, slope compensation, overvoltage protection comparator, and current sense amplifier in one package. Use Value: Reduces component count by consolidating four critical analog functions, lowering BOM cost and PCB area versus discrete solutions. | Use Scenario: Signal conditioning for portable multimeters, handheld gas detectors, and medical pulse oximeters. IC Role / Device Role / Timing Role: Amplifies low-level sensor outputs (e.g., electrochemical cell currents, photodiode signals) while maintaining ultra-low power consumption. Use Value: 525 µA per amplifier enables >100-hour battery life in continuous-monitoring devices powered by two AA cells. |
| TFT-LCD Drive Circuits | Active Filters |
Use Scenario: Gamma correction voltage generation and source driver biasing in automotive and industrial display modules. IC Role / Device Role / Timing Role: Configured as precision voltage followers and summing amplifiers to generate stable, temperature-stable reference voltages for column drivers. Use Value: ±1 µV/°C offset drift ensures gamma curve stability across –40°C to +85°C automotive temperature range. | Use Scenario: 2nd-order low-pass and band-pass filtering in audio preamps, vibration monitoring, and ECG front-ends. IC Role / Device Role / Timing Role: Implements Sallen-Key and multiple-feedback topologies with precise gain and cutoff control using external RC networks. Use Value: 3 MHz GBW supports filter corner frequencies up to 300 kHz with <0.1 dB passband ripple and minimal phase distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4171IDR | Higher quiescent current (1.2 mA per amp), lower input bias current (0.3 pA), identical GBW (3 MHz) and supply range. | Better suited for ultra-high-impedance pH or ion-selective electrode sensors where bias current dominates error. | Select TLV4171ID for battery life-critical designs; OPA4171IDR where femtoampere-level input bias is mandatory. |
| LM324DR | Lower supply voltage ceiling (32 V max), higher offset drift (7 µV/°C), no EMI hardening, 1.2 MHz GBW. | Acceptable for cost-driven consumer-grade applications where EMI immunity and precision are secondary. | Choose TLV4171ID for industrial environments with switching noise or extended temperature requirements; LM324DR only for legacy 5 V systems with relaxed specs. |
Compared with OPA4171IDR and LM324DR, TLV4171ID uniquely balances ultra-low power (525 µA), EMI resilience, and precision (±1 µV/°C drift) in a quad SOIC - making it optimal for next-generation portable and automotive analog subsystems where efficiency and robustness coexist.
Availability
TLV4171ID is available at Aetrix Electronics and suitable for AC-DC converters, battery-powered instruments, and TFT-LCD drive circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV4171ID 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 innovation in precision amplifiers and power management ICs.
The TLVx171 product line was designed specifically for cost-sensitive industrial and personal electronics systems needing EMI-hardened, low-power, wide-supply operational amplifiers - targeting applications from power conversion to portable instrumentation.
FAQ
What is the maximum capacitive load the TLV4171ID can drive while remaining stable?
The TLV4171ID is unity-gain stable with capacitive loads up to 200 pF, as confirmed in the Electrical Characteristics table and Typical Characteristics (Figures 14–15). This allows direct connection to ADC input capacitors and moderate-length PCB traces without requiring series isolation resistors - a key advantage over many general-purpose op amps that oscillate above 50 pF.
Does the TLV4171ID support true rail-to-rail input operation?
The TLV4171ID supports rail-to-rail input operation down to 100 mV below V– and up to 2 V below V+ for normal performance. It can accept inputs up to 100 mV beyond V+, but with reduced specifications (e.g., increased offset, degraded CMRR) within the top 2 V - details are specified in Section 7.4.1 of the SBOS783 datasheet.
What is the operating temperature range for the TLV4171ID?
The TLV4171ID is fully specified from –40°C to +125°C, with absolute maximum ratings extending to –55°C to +150°C. All key parameters - including offset voltage, drift, gain bandwidth, and quiescent current - are guaranteed across the full –40°C to +125°C range, making it suitable for under-hood automotive and industrial control applications.
How does the EMI hardening in the TLV4171ID improve system reliability?
The TLV4171ID incorporates RFI-filtered inputs and achieves >80 dB EMIRR (Electromagnetic Interference Rejection Ratio) at 900 MHz, as measured in Figure 25 of SBOS783. This prevents noise coupling from cellular bands, switch-mode power supplies, and RF transceivers from corrupting sensitive analog measurements - critical in medical, test equipment, and automotive display systems.
Can the TLV4171ID replace the LM324 in existing designs without layout changes?
The TLV4171ID uses the same 14-pin SOIC footprint as the LM324, enabling drop-in replacement in many cases. However, due to its wider supply range (2.7 V–36 V vs. LM324's 3 V–32 V), lower quiescent current, and improved AC performance, validation of loop stability, noise, and thermal behavior is required - especially in high-gain or high-frequency configurations.
TLV4171ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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
TLV4171ID FAQ
1.How can I place an order for TLV4171ID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV4171ID 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 TLV4171ID reliable?
The price and inventory of TLV4171ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV4171ID is usually 5 days.
3.What payment methods are accepted for TLV4171ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV4171ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV4171ID?
TLV4171ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV4171ID 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 TLV4171ID?
For technical support, including TLV4171ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV4171ID requirements.
6.How does Aetrix verify that TLV4171ID is sourced from the original manufacturer or authorized distributors?
All TLV4171ID 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 TLV4171ID meets industry standards.
7.What is the process for return or replacement of TLV4171ID?
All TLV4171ID units undergo pre-shipment inspection (PSI). If there is an issue with TLV4171ID, 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 TLV4171ID part is unused and in its original packaging.
Return procedure for TLV4171ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV4171ID Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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