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Texas Instruments LM6171AIMX
- Part No.:
- LM6171AIMX
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM6171AIMX.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,857
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Product details
Overview
LM6171AIMX from Texas Instruments is a high-speed, unity-gain-stable voltage-feedback amplifier optimized for video and precision analog signal processing. It delivers 3600 V/μs slew rate, 76 MHz unity-gain bandwidth (LM6171A grade), 110 dB CMRR, 2.5 mA supply current, and operates from ±5 V to ±15 V supplies - enabling high-fidelity NTSC/PAL line driving and ADC/DAC buffering.
For engineers reviewing the LM6171AIMX datasheet, LM6171AIMX pinout, LM6171AIMX application, or LM6171AIMX equivalent, key selection criteria include its voltage-feedback architecture, ±15 V large-signal swing capability, low THD/SFDR performance, and SOIC-8 package compatibility with legacy video signal chain layouts.
Technical Context
The LM6171AIMX employs a voltage-feedback topology with fully differential input stage and high-current output stage, supporting stable operation at unity gain without external compensation. Its internal architecture enables simultaneous high slew rate and wide bandwidth while maintaining low distortion across 3.58–10 MHz video bands.
It features rail-to-rail output drive into 100 Ω loads (±11.6 V @ ±15 V, ±3.2 V @ ±5 V), precise DC specs including 3 mV max input offset voltage (25°C), and robust thermal design with 122.5°C/W junction-to-ambient resistance in SOIC-8 package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 3600 V/μs - enables clean 10 VPP pulse response within 21 ns settling (0.1%) at AV = −1 |
| Unity-Gain Bandwidth | 76 MHz (LM6171A) - supports full-power bandwidth for 720p/1080i video signals |
| Supply Current | 2.5 mA typical - allows dual-channel implementation under 5.5 mW per amplifier at ±15 V |
| CMRR | 110 dB - rejects common-mode noise in multi-source video routing systems |
| Input Offset Voltage | 3 mV max (25°C) - ensures <0.1% gain error in precision buffer applications |
| Output Swing | ±13.3 V into 1 kΩ (±15 V supply) - maintains >90% of rail-to-rail dynamic range for broadcast-level signal integrity |
| THD + Noise | 0.03% differential gain / 0.5° differential phase - meets NTSC/PAL composite video fidelity requirements |
Pinout & Package
LM6171AIMX is supplied in an 8-pin SOIC (D package), 4.9 mm × 6 mm body size, surface-mount outline with standard JEDEC MS-012AC footprint. Pin 1 is marked by beveled corner or dot; device is not internally connected at pins 1, 5, and 8.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 2 (–IN) | Negative input | Inverting input node for closed-loop configurations; high-impedance (40 MΩ common-mode) |
| Pin 3 (+IN) | Positive input | Non-inverting input node; matched bias current path for offset minimization |
| Pin 4 (V–) | Negative supply | Connects to –5 V or –15 V rail; must be decoupled locally with 0.1 μF ceramic capacitor |
| Pin 6 (OUTPUT) | Amplifier output | Capable of sourcing/sinking ≥116 mA into 100 Ω load; requires careful layout to avoid capacitive loading instability |
| Pin 7 (V+) | Positive supply | Connects to +5 V or +15 V rail; independent of V– for split-supply operation |
| Pins 1, 5, 8 | No-connect | Not bonded internally; must remain floating or tied to ground/V+ only if required for mechanical stability |
Key Features
| Feature | Design Value |
|---|---|
| Voltage-feedback topology | Enables intuitive gain-setting with standard resistor networks and predictable stability behavior vs. current-feedback alternatives |
| ±15 V and ±5 V operation | Supports both broadcast-grade signal swing (±13.3 V) and portable low-voltage systems without redesign |
| Low 12 nV/√Hz input voltage noise | Maintains SNR >70 dB in 10 MHz baseband video channels with 1 kΩ source impedance |
| High 110 dB CMRR at DC | Rejects power supply ripple and ground bounce in mixed-signal PCB environments |
| Specified for –40°C to +85°C | Validated for industrial video equipment and broadcast infrastructure deployments |
Applications
| NTSC/PAL Line Driver | ADC/DAC Buffer |
|---|---|
Use Scenario: Driving 75 Ω coaxial cable in analog broadcast equipment with composite video signals. IC Role / Device Role / Timing Role: High-fidelity voltage buffer with minimal group delay variation across 4.43 MHz color subcarrier. Use Value: 0.03% differential gain and 0.5° differential phase preserve chroma fidelity over 100 m cable runs. |
Use Scenario: Isolating high-resolution SAR ADC inputs from multiplexer switching transients. IC Role / Device Role / Timing Role: Low-settling-time driver (21 ns, 0.1%) ensuring accurate sampling of fast-rising analog waveforms. Use Value: 3600 V/μs slew rate prevents missing-code errors during full-scale step transitions. |
| HDTV Analog Output Stage | Active Video Filter |
Use Scenario: Final-stage amplification before RGB or YPbPr output connectors in HD set-top boxes. IC Role / Device Role / Timing Role: Unity-gain stable amplifier delivering 75 MHz bandwidth for 1080i timing compliance. Use Value: 76 MHz unity-gain bandwidth exceeds SMPTE RP149 requirement for 1080i analog outputs. |
Use Scenario: Implementing 5-pole low-pass filtering in professional video test equipment. IC Role / Device Role / Timing Role: Gain block in Sallen-Key or multiple-feedback filter topologies with precise pole placement. Use Value: 90 dB open-loop gain ensures <0.1 dB passband flatness up to 30 MHz in 4th-order designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed voltage-feedback amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM6172IMX | Dual-channel version in same SOIC-8 package; identical AC specs but higher 5 mA total supply current | Preferred for space-constrained dual-buffer designs (e.g., RGB channel separation) | Select when needing two matched amplifiers without board area penalty |
| OPA695IDBVR | Current-feedback architecture; 1.7 GHz gain-bandwidth, 4300 V/μs slew rate, but requires external feedback resistor tuning | Better suited for >100 MHz RF/IF gain blocks than video baseband | Choose only for ultra-wideband applications where voltage-feedback phase margin is insufficient |
Compared with LM6172IMX and OPA695IDBVR, the LM6171AIMX offers superior DC precision (lower VOS drift, higher CMRR) and plug-and-play stability in unity-gain video buffers, while avoiding CFB layout sensitivity and dual-amplifier quiescent power overhead.
Availability
LM6171AIMX is available at Aetrix Electronics and suitable for NTSC/PAL line drivers, ADC/DAC buffers, HDTV analog output stages, and active video filters requiring stable component supply across industrial temperature ranges and long-lifecycle production programs.
Supply support for LM6171AIMX 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 expertise in high-performance op-amps and signal-chain solutions.
The LM6171AIMX belongs to TI's precision high-speed amplifier product line, engineered specifically for broadcast video, instrumentation, and data acquisition systems demanding wide bandwidth, low distortion, and rail-compatible output drive.
FAQ
What supply voltages does the LM6171AIMX support?
The LM6171AIMX is specified for operation from ±5 V to ±15 V dual supplies, with absolute maximum rating of 36 V total supply (V+ – V–). At ±5 V, it delivers 750 V/μs slew rate and 70 MHz unity-gain bandwidth; at ±15 V, it achieves 3600 V/μs and 76 MHz. This dual-voltage capability makes LM6171AIMX suitable for both portable and broadcast-grade equipment without circuit redesign.
Is the LM6171AIMX unity-gain stable?
Yes, the LM6171AIMX is explicitly designed as a unity-gain-stable voltage-feedback amplifier. Its internal compensation ensures unconditional stability with closed-loop gains ≥1, eliminating need for external compensation components. This is confirmed in the datasheet's "Description" section and validated across all tested load conditions (100 Ω to 1 kΩ) and supply voltages (±5 V to ±15 V).
What is the maximum output current capability of the LM6171AIMX?
The LM6171AIMX provides continuous output current of 116 mA sourcing and 105 mA sinking into 100 Ω loads at ±15 V supply and 25°C. Short-circuit current reaches 135 mA (both sourcing and sinking). These values are measured under linear-region operation and enable direct driving of 75 Ω video lines or low-impedance ADC inputs without external buffers - a key feature of LM6171AIMX in high-fidelity signal chains.
Does the LM6171AIMX meet NTSC and PAL video specifications?
Yes, the LM6171AIMX meets critical NTSC and PAL video specifications: 0.03% differential gain and 0.5° differential phase error at 3.58 MHz (±15 V, AV = +2), measured with 75 Ω input/output termination. These values are explicitly listed in Section 5.5 of the datasheet and confirm LM6171AIMX suitability for composite video line drivers, sync separators, and encoder/decoder interfaces in broadcast equipment.
What package type is used for the LM6171AIMX?
The LM6171AIMX uses an 8-pin SOIC (Small Outline Integrated Circuit) package, designated as "D package" by Texas Instruments, with nominal dimensions of 4.9 mm × 6 mm. This surface-mount outline complies with JEDEC MS-012AC standards and is compatible with automated PCB assembly processes. The LM6171AIMX variant specifically denotes the SOIC-8 packaging option - distinct from the PDIP-8 (P package) version.
LM6171AIMX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- VIP™ III
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 3600V/µs
- Gain Bandwidth Product:
- 100 MHz
- -3db Bandwidth:
- 160 MHz
- Current - Input Bias:
- 1 µA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 2.5mA
- Current - Output / Channel:
- 116 mA
- Voltage - Supply Span (Min):
- 5.5 V
- Voltage - Supply Span (Max):
- 34 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
LM6171AIMX FAQ
1.How can I place an order for LM6171AIMX through Aetrix?
Please submit a Request for Quotation (RFQ) for LM6171AIMX 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 LM6171AIMX reliable?
The price and inventory of LM6171AIMX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM6171AIMX is usually 5 days.
3.What payment methods are accepted for LM6171AIMX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM6171AIMX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM6171AIMX?
LM6171AIMX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM6171AIMX 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 LM6171AIMX?
For technical support, including LM6171AIMX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM6171AIMX requirements.
6.How does Aetrix verify that LM6171AIMX is sourced from the original manufacturer or authorized distributors?
All LM6171AIMX 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 LM6171AIMX meets industry standards.
7.What is the process for return or replacement of LM6171AIMX?
All LM6171AIMX units undergo pre-shipment inspection (PSI). If there is an issue with LM6171AIMX, 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 LM6171AIMX part is unused and in its original packaging.
Return procedure for LM6171AIMX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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