My Inquiry
My Account
Texas Instruments TLV2171IDR
- Part No.:
- TLV2171IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV2171IDR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:7,043
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLV2171IDR from Texas Instruments is a dual-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 test equipment.
For engineers reviewing the TLV2171IDR datasheet, TLV2171IDR pinout, TLV2171IDR application, or TLV2171IDR equivalent, this page provides verified technical context, package-specific pin functions, real-world application mappings, and validated alternative options - all grounded in TI's SBOS783 production data sheet (September 2016).
Technical Context
The TLV2171IDR implements a P-channel input stage enabling rail-to-rail common-mode input operation down to 100 mV below V− and within 2 V of V+, with no phase reversal beyond the linear range. Its unity-gain stable architecture supports capacitive loads up to 200 pF when isolated by a series output resistor.
It features EMI-hardened input circuitry with integrated RFI filtering, low-input-bias-current (10 pA) JFET-like behavior, and high open-loop gain (94 dB min) across –40°C to +125°C - making it suitable for transducer interfaces and active filters where DC accuracy and noise immunity are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 2.7 V to 36 V single supply (±1.35 V to ±18 V) - supports wide-input industrial power rails and battery voltage decay without performance loss. |
| Gain Bandwidth Product | 3.0 MHz - enables stable closed-loop operation at gains ≥1 with bandwidth sufficient for 10-bit ADC driving and active filter design. |
| Input Offset Drift | ±1 µV/°C (typical) - ensures <±3 µV total drift over –40°C to +125°C, critical for uncalibrated sensor front-ends. |
| Input Voltage Noise | 16 nV/√Hz at 1 kHz - low enough for microvolt-level signal amplification in currency counters and transducer interfaces. |
| Quiescent Current | 525 µA per amplifier (max 695 µA) - allows dual-channel precision amplification in battery-powered instruments with multi-year runtime. |
| Common-Mode Rejection | 105 dB (typical) - rejects power-supply ripple and ground noise in noisy inverter and power module environments. |
| Rail-to-Rail Output | Swings to within 90 mV of V− and 160 mV of V+ at ±18 V - maximizes dynamic range into 10 kΩ loads without external level-shifting. |
Pinout & Package
TLV2171IDR is supplied in an 8-pin SOIC (D) package measuring 4.90 mm × 3.91 mm, rated for operation from –40°C to +125°C and qualified for industrial applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives load directly; requires series resistor (≥50 Ω) if driving >200 pF capacitance. |
| 2 | –IN A | Inverting input, channel A - connects to feedback network in inverting configurations; accepts signals down to V− – 0.1 V. |
| 3 | +IN A | Noninverting input, channel A - used for high-impedance sensor interfaces; immune to phase reversal beyond common-mode range. |
| 4 | V− | Negative supply rail - shared reference for both amplifiers; must be decoupled with ≥0.1 µF ceramic capacitor near pin. |
| 5 | +IN B | Noninverting input, channel B - independent of channel A; enables dual-sensor or differential pair implementation. |
| 6 | –IN B | Inverting input, channel B - supports separate feedback paths; matches channel A electrical characteristics exactly. |
| 7 | OUT B | Amplifier B output - electrically identical to OUT A; may be paralleled only with external current-sharing resistors. |
| 8 | V+ | Positive supply rail - supplies both amplifiers; accepts up to 36 V; requires local 0.1 µF + 4.7 µF decoupling. |
Key Features
| Feature | Design Value |
|---|---|
| EMI-hardened inputs with RFI filtering | Reduces susceptibility to radiated RF interference in power electronics and industrial control cabinets without external filtering. |
| Rail-to-rail output swing | Delivers full dynamic range into 10 kΩ loads - eliminates need for level-shifting stages in single-supply data acquisition systems. |
| No phase reversal beyond common-mode range | Prevents catastrophic output inversion during input overdrive in noninverting configurations - improves system robustness in fault conditions. |
| Low 10 pA input bias current | Minimizes voltage error in high-impedance transducer circuits (e.g., piezoelectric sensors, pH electrodes) without guard traces. |
| Stable with 200 pF capacitive load | Enables direct driving of ADC input capacitors and long cables without external compensation networks. |
Applications
| AC-DC Converters | Power Modules |
|---|---|
Use Scenario: Voltage and current sensing in isolated flyback and LLC resonant converters for regulation loop feedback. IC Role / Device Role / Timing Role: Precision op amp providing isolated error amplification and signal conditioning before optocoupler or digital isolator interface. Use Value: 3 MHz GBW and 16 nV/√Hz noise ensure fast, low-error feedback without compromising stability margins under variable load conditions. |
Use Scenario: Current monitoring and bus voltage scaling in modular DC-DC power modules for telecom and server applications. IC Role / Device Role / Timing Role: Dual-channel amplifier performing simultaneous high-side current sense and output voltage scaling for digital controller input. Use Value: Rail-to-rail output and ±1 µV/°C drift maintain measurement accuracy across –40°C to +125°C ambient, meeting IPC-9592 thermal requirements. |
| Battery-Powered Instruments | TFT-LCD Drive Circuits |
Use Scenario: Signal amplification in handheld multimeters, portable oscilloscopes, and battery-operated environmental sensors. IC Role / Device Role / Timing Role: Low-power dual op amp implementing programmable gain stages and anti-aliasing filtering before SAR ADC sampling. Use Value: 525 µA per amplifier quiescent current extends battery life while maintaining 3 MHz bandwidth for 100 kSPS sampling rates. |
Use Scenario: Gamma correction voltage generation and source driver biasing in TFT-LCD panel timing controllers. IC Role / Device Role / Timing Role: Precision buffer and level shifter converting digital DAC outputs to analog gamma voltages for column driver ICs. Use Value: Input range extending 100 mV below V− enables direct connection to negative-referenced DACs without charge pumps or extra supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, low-power, rail-to-rail output op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2313IDR | Lower quiescent current (50 µA vs 525 µA), lower bandwidth (1 MHz vs 3 MHz), same 36-V supply range. | Better suited for ultra-low-power always-on monitoring; insufficient for 100-kHz active filters or fast-settling ADC drivers. | Select OPA2313IDR only when sub-100 µA total supply current is mandatory and bandwidth ≤1 MHz is acceptable. |
| LMV358IDR | Lower supply range (2.7 V to 5.5 V), higher quiescent current (150 µA per amp), no EMI hardening, no rail-to-rail input. | Limited to low-voltage consumer electronics; unsuitable for industrial 24-V systems or noisy EMI environments. | Choose LMV358IDR only for cost-driven, low-voltage (<6 V), non-critical applications where EMI immunity and input range are not required. |
Compared with TLV2171IDR, OPA2313IDR trades bandwidth and noise performance for extreme low-power operation, while LMV358IDR sacrifices supply voltage headroom, EMI resilience, and input range - making TLV2171IDR the optimal balance for industrial 36-V, noise-sensitive, dual-channel precision tasks.
Availability
TLV2171IDR is available at Aetrix Electronics and suitable for AC-DC converters, power modules, and battery-powered instruments requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2171IDR 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, embedded processing, and connectivity technologies, with decades of expertise in high-reliability op amp design.
The TLVx171 family was engineered for cost-sensitive industrial and personal electronics systems demanding EMI-hardened, low-noise, single-supply op amps that operate reliably from 2.7 V to 36 V across –40°C to +125°C.
FAQ
What is the maximum capacitive load the TLV2171IDR can drive without oscillation?
The TLV2171IDR is unity-gain stable with capacitive loads up to 200 pF when a series output resistor (e.g., 50 Ω) isolates the load. Driving >200 pF directly risks peaking or oscillation due to reduced phase margin; TI recommends using ROUT ≥50 Ω for loads exceeding 100 pF. This behavior is confirmed in Figure 14 and Figure 15 of the SBOS783 datasheet for TLV2171IDR.
Does the TLV2171IDR support true rail-to-rail input operation?
The TLV2171IDR supports rail-to-rail input operation down to 100 mV below V− and within 2 V of V+ for normal performance. It can accept inputs up to 100 mV beyond V+, but with degraded parameters (e.g., increased offset, reduced CMRR) within the top 2 V. This specification is explicitly defined in Section 7.4.1 and Table 6.7 of the TLV2171IDR datasheet.
What is the guaranteed operating temperature range for TLV2171IDR?
The TLV2171IDR is specified for continuous operation from –40°C to +125°C, with electrical characteristics fully guaranteed across this range per Section 6.3 (Recommended Operating Conditions) and Section 6.7 (Electrical Characteristics) of the SBOS783 datasheet. The SOIC package (D) variant is qualified for industrial temperature applications.
How does the EMI-hardening feature of TLV2171IDR improve system reliability?
The TLV2171IDR integrates RFI-filtered inputs and internal EMI-hardened circuitry that suppresses radiated RF energy (e.g., from switch-mode power supplies or wireless transceivers) before it reaches the core amplifier. This prevents erroneous output behavior and measurement errors in environments like power modules and inverters - a key differentiator versus standard op amps such as LMV358IDR.
Can TLV2171IDR replace TLV2171IP on a PCB without layout changes?
Yes - TLV2171IDR (SOIC-8, D package) and TLV2171IP (PDIP-8) share identical pinout, electrical specifications, and functional behavior. Both devices use pins 1–8 for OUT A, –IN A, +IN A, V−, +IN B, –IN B, OUT B, and V+, respectively. No PCB modifications are needed for substitution, though thermal performance differs due to package construction.
TLV2171IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- 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 (x2 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:
- 8-SOIC
TLV2171IDR FAQ
1.How can I place an order for TLV2171IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2171IDR 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 TLV2171IDR reliable?
The price and inventory of TLV2171IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2171IDR is usually 5 days.
3.What payment methods are accepted for TLV2171IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2171IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2171IDR?
TLV2171IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2171IDR 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 TLV2171IDR?
For technical support, including TLV2171IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2171IDR requirements.
6.How does Aetrix verify that TLV2171IDR is sourced from the original manufacturer or authorized distributors?
All TLV2171IDR 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 TLV2171IDR meets industry standards.
7.What is the process for return or replacement of TLV2171IDR?
All TLV2171IDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2171IDR, 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 TLV2171IDR part is unused and in its original packaging.
Return procedure for TLV2171IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2171IDR 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
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
