My Inquiry
My Account
Texas Instruments TLV171IDR
- Part No.:
- TLV171IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV171IDR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:8,024
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLV171IDR from Texas Instruments is a single-channel, 36-V rail-to-rail output operational amplifier optimized for cost-sensitive industrial and battery-powered systems. It delivers 3 MHz gain bandwidth, 16 nV/√Hz input voltage noise, ±1 μV/°C offset drift, and 525 µA quiescent current per amplifier - enabling precision signal conditioning in AC-DC converters and TFT-LCD drive circuits.
For engineers reviewing the TLV171IDR datasheet, TLV171IDR pinout, TLV171IDR application, or TLV171IDR equivalent, key selection considerations include its EMI-hardened RFI-filtered inputs, operation down to 2.7 V single supply, phase-reversal immunity, and stable performance with 200-pF capacitive loads.
Technical Context
The TLV171IDR employs a P-channel input stage enabling rail-to-rail common-mode input range extending 100 mV below V− and within 2 V of V+, with no phase reversal beyond that range. Its unity-gain-stable architecture supports capacitive loads up to 200 pF without external compensation.
It features internal EMI-hardening via RFI-filtered inputs and integrated electrostatic discharge protection (±4 kV HBM, ±750 V CDM), with low input bias current (10 pA) and high open-loop gain (94 dB min) maintained across –40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | 2.7 V to 36 V single supply (±1.35 V to ±18 V dual); enables direct interface with 3.3 V, 5 V, 12 V, and 24 V systems without level-shifting. |
| Gain Bandwidth Product | 3.0 MHz; supports stable closed-loop amplification up to ~200 kHz at G = 10 without excessive phase lag. |
| Input Voltage Noise | 16 nV/√Hz at 1 kHz; preserves signal integrity in low-level sensor interfaces like transducers and active filters. |
| Quiescent Current | 525 µA per amplifier (max 695 µA over temperature); allows multi-stage analog front-ends in battery-powered instruments. |
| Offset Voltage Drift | ±1 µV/°C (typical); ensures < ±12 µV total drift over –40°C to +125°C, critical for precision DC-coupled measurement paths. |
| Common-Mode Range | V– – 0.1 V to V+ – 2 V; permits direct sensing of signals referenced to ground in single-supply configurations. |
| Output Swing | Within 90 mV of V– and 160 mV of V+ (at ±18 V, RL = 10 kΩ); delivers >98% rail-to-rail dynamic range for maximum ADC utilization. |
Pinout & Package
TLV171IDR is packaged in an 8-pin SOIC (D package) with 4.90 mm × 3.91 mm body size. Pin 1 is OUT; Pin 2 is IN–; Pin 3 is IN+; Pin 4 is V–; Pin 5 is NC; Pin 6 is OUT (redundant, not connected); Pin 7 is V+; Pin 8 is NC. Pins 1, 5, 6, and 8 are internally unconnected and must be left floating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Amplifier output | Delivers rail-to-rail voltage swing; requires series resistor (≥50 Ω) when driving >200 pF to maintain stability. |
| IN– (Pin 2) | Inverting input | Accepts differential input signals; supports common-mode voltages down to V– – 0.1 V without phase reversal. |
| IN+ (Pin 3) | Noninverting input | Enables unity-gain buffer or noninverting amplifier configurations; RFI-filtered for EMI resilience. |
| V– (Pin 4) | Negative supply rail | Serves as reference for input common-mode and output swing; must be decoupled with ≥0.1 µF ceramic capacitor. |
| NC (Pins 5, 6, 8) | No internal connection | Electrically isolated; must remain unconnected on PCB to avoid parasitic coupling or mechanical stress. |
| V+ (Pin 7) | Positive supply rail | Supports up to 36 V; supplies internal bias circuitry and output stage; requires local 0.1 µF + 4.7 µF decoupling. |
Key Features
| Feature | Design Value |
|---|---|
| EMI-hardened inputs | Integrated RFI filtering suppresses >100 MHz interference in noisy industrial environments (e.g., inverters, power modules). |
| Rail-to-rail output | Swings within 90 mV of V– and 160 mV of V+ at full load, maximizing dynamic range for 12-bit+ ADC interfacing. |
| No phase reversal | Input overdrive beyond common-mode range forces output to rail limit instead of inverting - prevents system latch-up in transducer interfaces. |
| Low offset drift | ±1 µV/°C typical drift ensures stable DC accuracy in temperature-varying applications like currency counters and test equipment. |
| Unity-gain stable | Stable with 200 pF capacitive load; eliminates need for external compensation in driving long traces or LCD column drivers. |
Applications
| AC-DC Converters | Transducers |
|---|---|
Use Scenario: Voltage and current sensing in primary-side regulation and secondary-side feedback loops of switch-mode power supplies. IC Role / Device Role / Timing Role: Precision op amp configured as difference amplifier or current-sense amplifier for isolated feedback path. Use Value: Low 525 µA quiescent current minimizes standby loss; 36-V rating supports direct connection to high-side bus rails. |
Use Scenario: Signal conditioning of low-amplitude outputs from strain gauges, thermopiles, and piezoelectric sensors. IC Role / Device Role / Timing Role: Low-noise, low-drift amplifier in instrumentation-grade front-end with 16 nV/√Hz noise floor. Use Value: 10 pA input bias current avoids loading high-impedance sensor elements; rail-to-rail output maximizes SNR into ADC. |
| TFT-LCD Drive Circuits | Battery-Powered Instruments |
Use Scenario: Gamma correction voltage generation and column driver biasing in portable display subsystems. IC Role / Device Role / Timing Role: Precision buffer and voltage follower driving capacitive LCD pixel lines. Use Value: Unity-gain stability with 200 pF load eliminates external compensation; 2.7 V minimum supply enables direct use with Li-ion batteries. |
Use Scenario: Analog front-end for handheld multimeters, environmental monitors, and portable medical devices. IC Role / Device Role / Timing Role: Low-power signal amplifier in multi-stage measurement chains requiring long battery life. Use Value: 525 µA IQ enables >1-year operation on coin-cell batteries; ±1 µV/°C drift maintains calibration stability across operating temperatures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA192IDR | Higher precision: 5 µV max offset, 0.2 µV/°C drift, but 1.3 mA IQ and $1.25 typical price vs $0.42 for TLV171IDR. | Better suited for high-accuracy data acquisition; less optimal for ultra-low-power or cost-driven designs. | Select OPA192IDR only when sub-10 µV offset and <0.5 µV/°C drift are mandatory - not for general-purpose cost-sensitive use. |
| LM321IDBVR | Lower performance: 7 MHz GBW but 25 nV/√Hz noise, 7 µV/°C drift, 400 µA IQ, and no phase-reversal protection. | Acceptable for basic amplification where EMI immunity and rail-to-rail input are not required. | Choose LM321IDBVR only if budget is tighter than $0.25 and specifications allow relaxed noise/drift - TLV171IDR offers superior value per spec. |
Compared with OPA192IDR and LM321IDBVR, TLV171IDR uniquely balances low cost, EMI hardening, phase-reversal immunity, and 525 µA quiescent current - making it the optimal choice for industrial power conversion and portable instrumentation where reliability and efficiency intersect.
Availability
TLV171IDR is available at Aetrix Electronics and suitable for AC-DC converters, transducer interfaces, and battery-powered instruments requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV171IDR 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 family was designed for cost-sensitive industrial and personal electronics systems needing EMI-hardened, low-noise, single-supply op amps operating from 2.7 V to 36 V - targeting power modules, inverters, and portable test equipment.
FAQ
What is the maximum capacitive load the TLV171IDR can drive without oscillation?
The TLV171IDR is unity-gain stable with capacitive loads up to 200 pF when properly decoupled and laid out. Driving larger loads requires isolation via a series resistor (e.g., 50 Ω) between the output and the load capacitance. This configuration is validated in TI's SBOS783 datasheet Figure 14 and Figure 15, which show overshoot behavior versus capacitive load for various ROUT values. TLV171IDR's internal compensation ensures stability without external components under standard conditions.
Does the TLV171IDR support true rail-to-rail input operation?
The TLV171IDR supports rail-to-rail input common-mode voltage from V– – 0.1 V up to V+ – 2 V for normal operation. It can accept inputs up to V+ (i.e., 100 mV beyond the top rail), but performance degrades - including increased offset voltage and reduced CMRR - within the top 2 V of the supply. This behavior is documented in Section 7.4.1 of the SBOS783 datasheet and confirmed in Figure 2 and Figure 3 (Offset Voltage vs Common-Mode Voltage).
What is the operating temperature range specified for the TLV171IDR?
The TLV171IDR is fully specified from –40°C to +125°C ambient temperature, with electrical characteristics guaranteed across this range. Absolute maximum ratings extend to –55°C to +150°C junction temperature, and storage temperature spans –65°C to +150°C. Thermal metrics such as RθJA = 149.5°C/W (SOIC-8) are provided in Section 6.4 of the SBOS783 datasheet to support thermal design validation. TLV171IDR maintains 525 µA typical IQ and 3 MHz GBW across the full –40°C to +125°C range.
How does the TLV171IDR handle input overvoltage conditions that exceed the supply rails?
The TLV171IDR incorporates internal phase-reversal protection: when input signals exceed the linear common-mode range (e.g., >V+ – 2 V), the output saturates toward the appropriate rail instead of inverting polarity. This prevents latch-up or erroneous control signals in noninverting configurations. The feature is verified in Figure 16 ("No Phase Reversal") of SBOS783 and stems from its P-channel input stage topology. TLV171IDR also includes ESD protection diodes rated for ±4 kV HBM and ±750 V CDM.
Is the TLV171IDR pin-compatible with other members of the TLVx171 family?
No - TLV171IDR (single-channel, SOIC-8) is not pin-compatible with TLV2171 (dual-channel, SOIC-8 or VSSOP-8) or TLV4171 (quad-channel, SOIC-14 or TSSOP-14). While all share identical electrical specifications and functional behavior, their pinouts differ fundamentally: TLV171IDR uses Pins 1–4 and 7 for signal I/O and supply, with Pins 5/6/8 as NC; TLV2171 dedicates Pins 1/7 to two independent outputs and Pins 2/3/5/6 to four inputs. TLV171IDR's pin mapping is unique to its single-channel implementation.
TLV171IDR 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:
- 1
- 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
- Current - Output / Channel:
- -
- 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
TLV171IDR FAQ
1.How can I place an order for TLV171IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV171IDR 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 TLV171IDR reliable?
The price and inventory of TLV171IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV171IDR is usually 5 days.
3.What payment methods are accepted for TLV171IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV171IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV171IDR?
TLV171IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV171IDR 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 TLV171IDR?
For technical support, including TLV171IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV171IDR requirements.
6.How does Aetrix verify that TLV171IDR is sourced from the original manufacturer or authorized distributors?
All TLV171IDR 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 TLV171IDR meets industry standards.
7.What is the process for return or replacement of TLV171IDR?
All TLV171IDR units undergo pre-shipment inspection (PSI). If there is an issue with TLV171IDR, 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 TLV171IDR part is unused and in its original packaging.
Return procedure for TLV171IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV171IDR 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…
