My Inquiry
My Account
Texas Instruments LM6171BIMX
- Part No.:
- LM6171BIMX
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM6171BIMX.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,805
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM6171BIMX from Texas Instruments is a high-speed, unity-gain-stable voltage-feedback amplifier optimized for video and high-fidelity analog signal processing. It delivers 3600 V/μs slew rate, 100 MHz unity-gain bandwidth (±15 V), 75 MHz −3-dB bandwidth at AV = +2, 2.5 mA supply current, and 110 dB CMRR - enabling precision NTSC/PAL line driving and ADC/DAC buffering in broadcast and instrumentation systems.
For engineers reviewing the LM6171BIMX datasheet, LM6171BIMX pinout, LM6171BIMX application, or LM6171BIMX equivalent, key selection criteria include its ±15-V/±5-V dual-supply operation, SOIC-8 package compatibility, low THD/SFDR performance, and stable gain ≥ +1 configuration without external compensation.
Technical Context
The LM6171BIMX employs a voltage-feedback architecture with internal compensation for unity-gain stability, eliminating need for external feedback capacitors. Its high slew rate and wide bandwidth stem from optimized transconductance and low-output-impedance output stage, supporting fast pulse response (<48 ns 0.1% settling) and minimal distortion in AC-coupled video paths.
It operates across −40°C to +85°C ambient, supports rail-to-rail input common-mode range (±13.5 V on ±15 V supplies), and maintains >70 dB large-signal voltage gain into 100 Ω loads - critical for driving coaxial cables and ADC front-ends with minimal signal degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 3600 V/μs - enables faithful reproduction of fast video edges and pulse signals without slew-induced distortion. |
| Unity-Gain Bandwidth | 100 MHz (±15 V) - supports full-bandwidth amplification of baseband video up to ~50 MHz with ≤3 dB loss. |
| −3-dB Bandwidth (AV = +2) | 75 MHz (±15 V) - matches NTSC/PAL luminance bandwidth requirements and HDTV timing margins. |
| Supply Current | 2.5 mA - allows integration into power-constrained portable or multi-channel video systems without thermal penalty. |
| CMRR | 110 dB - rejects common-mode noise from shared supply rails or ground loops in mixed-signal PCB layouts. |
| Input Offset Voltage | 6 mV max (−40°C to +85°C) - ensures DC accuracy in active filter and instrumentation amplifier configurations. |
| Output Swing (RL = 1 kΩ) | ±13.3 V (±15 V supplies) - provides >26 VPP dynamic range for broadcast-level signal headroom. |
Pinout & Package
LM6171BIMX is housed in an 8-pin SOIC (D package), 4.9 mm × 6 mm body size, surface-mount compatible with standard reflow profiles. Thermal resistance RθJA = 122.5°C/W enables operation up to +85°C ambient with moderate copper pour.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 8 | No-connect | Internally unconnected; must be left floating or tied to GND/V+ for mechanical stability - no electrical function. |
| 2 (–IN) | Inverting Input | Differential input node; high-impedance (40 MΩ), low-bias-current path for feedback network connection. |
| 3 (+IN) | Non-inverting Input | Differential input node; matched to –IN for optimal CMRR and offset cancellation in balanced designs. |
| 4 (V–) | Negative Supply | Accepts −15 V or −5 V; must be decoupled locally with 0.1 μF ceramic capacitor to minimize PSRR degradation. |
| 6 (OUTPUT) | Amplifier Output | Capable of ±11.6 V swing into 100 Ω; drives 75 Ω video lines directly with <0.04% differential gain error. |
| 7 (V+) | Positive Supply | Accepts +15 V or +5 V; shares same decoupling requirement as V– to maintain symmetry and PSRR. |
Key Features
| Feature | Design Value |
|---|---|
| Voltage-feedback topology | Eliminates need for external compensation components - simplifies layout and reduces BOM count in gain ≥ +1 circuits. |
| Low distortion (0.03% DG / 0.5° DP) | Preserves color fidelity and timing integrity in composite video systems compliant with NTSC/PAL/SECAM standards. |
| High output current (116 mA sourcing) | Drives long 75 Ω coaxial cables or multiple ADC inputs without external buffers or gain stages. |
| Specified for ±5 V and ±15 V | Enables drop-in reuse across portable (±5 V) and broadcast-grade (±15 V) platforms without redesign. |
| 110 dB CMRR & 95 dB PSRR | Maintains signal integrity in noisy industrial or automotive environments where supply/ground noise is prevalent. |
Applications
| Video Line Driver | ADC/DAC Buffer |
|---|---|
Use Scenario: Driving 75 Ω coaxial cable from FPGA DAC output to monitor or recording equipment in broadcast production switchers. IC Role / Device Role / Timing Role: High-fidelity voltage buffer with unity-gain stability, preserving rise time and minimizing group delay variation. Use Value: 3600 V/μs slew rate prevents edge rounding; 0.5° differential phase error avoids hue shift in composite video. | Use Scenario: Isolating high-resolution SAR ADC input from multiplexer switching transients in automated test equipment. IC Role / Device Role / Timing Role: Low-noise, low-settling-time driver ensuring full-scale accuracy during 1 MSPS sampling windows. Use Value: 48 ns 0.1% settling time (LM6171B) meets timing budget for 16-bit ADCs; 12 nV/√Hz input noise minimizes SNR degradation. |
| HDTV Signal Amplifier | Active Filter Stage |
Use Scenario: Amplifying RGB or YPbPr component video signals prior to HDMI encoder in consumer set-top boxes. IC Role / Device Role / Timing Role: Wideband gain block operating at AV = +2 with flat 75 MHz −3-dB response and low THD. Use Value: 100 MHz unity-gain bandwidth ensures headroom for harmonics; ±13.3 V swing accommodates 2 VPP HDTV peak levels. | Use Scenario: Implementing 4th-order low-pass anti-aliasing filter in medical ultrasound front-end with precise cutoff control. IC Role / Device Role / Timing Role: Precision op-amp in Sallen-Key or MFB topology, leveraging high open-loop gain (90 dB) for accurate pole placement. Use Value: 90 dB open-loop gain ensures <0.1 dB passband ripple; 110 dB CMRR rejects ECG/EMG interference coupled onto filter reference nodes. |
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 |
|---|---|---|---|
| LM6172BIMX | Dual-channel version in same SOIC-8 package; identical AC specs but higher total supply current (5.0 mA). | Preferred for space-constrained dual-path systems (e.g., stereo audio, differential video) where channel matching matters. | Select LM6172BIMX only when dual amplifiers are required - single-channel LM6171BIMX saves cost and board area. |
| THS3091D | Current-feedback architecture; 2100 V/μs slew rate, 200 MHz bandwidth, higher supply current (6.5 mA), no unity-gain stability guarantee. | Better suited for fixed-gain > +5 applications with ultra-low distortion; requires external compensation for stability. | Choose THS3091D for >+5 gain, >150 MHz bandwidth needs; LM6171BIMX remains optimal for unity-gain-stable, low-power video buffering. |
Compared with LM6172BIMX and THS3091D, LM6171BIMX uniquely balances unity-gain stability, 3600 V/μs slew rate, and 2.5 mA quiescent current in a single SOIC-8 amplifier - making it the most efficient choice for cost-sensitive, single-channel video and data-acquisition buffer designs.
Availability
LM6171BIMX is available at Aetrix Electronics and suitable for video line driving, ADC/DAC buffering, and active filter applications requiring stable component supply, consistent parametric performance across temperature, and long-term industrial lifecycle support.
Supply support for LM6171BIMX 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 over 90 years of innovation in high-performance signal chain solutions.
The LM6171 product line was engineered specifically for high-fidelity video signal conditioning and high-speed data acquisition - delivering unity-gain stability, low distortion, and robust drive capability in compact packages.
FAQ
What supply voltages does the LM6171BIMX support?
The LM6171BIMX is fully specified for operation from ±15 V and ±5 V supplies. At ±15 V, it achieves 3600 V/μs slew rate and 100 MHz unity-gain bandwidth; at ±5 V, slew rate drops to 750 V/μs with 70 MHz unity-gain bandwidth. Both configurations maintain 2.5 mA typical supply current and full −40°C to +85°C operational range. The LM6171BIMX's dual-supply specification enables direct reuse across legacy broadcast and modern portable platforms without circuit modification.
Is the LM6171BIMX unity-gain stable?
Yes, the LM6171BIMX is internally compensated for unity-gain stability - no external compensation capacitor is required for AV ≥ +1 configurations. This is confirmed in the device description and functional specifications, where it states "high-speed, unity-gain-stable voltage-feedback amplifier" and lists guaranteed stability under AV = +1 (200 MHz −3-dB bandwidth). The LM6171BIMX maintains ≥40° phase margin at unity gain, enabling reliable use in voltage followers, active filters, and gain-of-one video drivers without risk of oscillation.
What is the maximum load capacitance the LM6171BIMX can drive without instability?
The LM6171BIMX can safely drive up to 1000 pF capacitive load while maintaining stability, as verified by Figure 5-16 and Figure 5-23 in the datasheet showing gain-bandwidth and slew rate vs. load capacitance. For optimal pulse fidelity and minimal overshoot, TI recommends limiting capacitive load to ≤100 pF when driving long traces or unterminated cables. When driving >100 pF, series output resistance (e.g., 10–22 Ω) should be added close to the LM6171BIMX output pin to isolate the capacitive load and preserve phase margin.
How does the LM6171BIMX perform in video applications like NTSC or PAL?
The LM6171BIMX delivers 0.03% differential gain and 0.5° differential phase error at 3.58 MHz - meeting or exceeding NTSC and PAL broadcast specifications. Its 75 MHz −3-dB bandwidth at AV = +2 ensures full luminance and chrominance signal preservation, while 3600 V/μs slew rate prevents edge distortion in sync pulses and fast transitions. These measured values are explicitly documented in Section 5.5 Electrical Characteristics and validated in Figures 5-44 through 5-51, confirming suitability for professional and consumer video signal chains.
What is the thermal performance of the LM6171BIMX in SOIC-8 package?
The LM6171BIMX in SOIC-8 (D package) has a junction-to-ambient thermal resistance (RθJA) of 122.5°C/W. At maximum 2.5 mA supply current and ±15 V operation, power dissipation is ~75 mW, resulting in ~9.2°C junction-to-ambient rise above ambient. With 1 cm² 2-oz copper pour, junction temperature stays well below 150°C derating limit even at +85°C ambient - enabling reliable operation in enclosed industrial enclosures without forced airflow. Thermal data is provided in Table 5.4 and Figure 5-52.
LM6171BIMX 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
LM6171BIMX FAQ
1.How can I place an order for LM6171BIMX through Aetrix?
Please submit a Request for Quotation (RFQ) for LM6171BIMX 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 LM6171BIMX reliable?
The price and inventory of LM6171BIMX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM6171BIMX is usually 5 days.
3.What payment methods are accepted for LM6171BIMX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM6171BIMX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM6171BIMX?
LM6171BIMX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM6171BIMX 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 LM6171BIMX?
For technical support, including LM6171BIMX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM6171BIMX requirements.
6.How does Aetrix verify that LM6171BIMX is sourced from the original manufacturer or authorized distributors?
All LM6171BIMX 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 LM6171BIMX meets industry standards.
7.What is the process for return or replacement of LM6171BIMX?
All LM6171BIMX units undergo pre-shipment inspection (PSI). If there is an issue with LM6171BIMX, 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 LM6171BIMX part is unused and in its original packaging.
Return procedure for LM6171BIMX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM6171BIMX 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…
