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Texas Instruments LM6171BIM
- Part No.:
- LM6171BIM
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM6171BIM.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,653
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Product details
Overview
LM6171BIM 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 NTSC/PAL line driving, ADC/DAC buffering, and HDTV amplification with low distortion.
For engineers reviewing the LM6171BIM datasheet, LM6171BIM pinout, LM6171BIM application, or LM6171BIM equivalent, key selection criteria include its ±15 V/±5 V dual-supply operation, SOIC-8 package compatibility, high output drive (±116 mA sourcing/sinking), low THD/SFDR performance, and stable behavior under capacitive loads up to 1000 pF.
Technical Context
The LM6171BIM employs a voltage-feedback architecture with internal compensation for unity-gain stability, eliminating external compensation components. Its high slew rate and wide bandwidth stem from optimized transconductance and low-output-impedance stages, supporting fast settling (21 ns, 0.1%) and low propagation delay (4.1 ns).
It operates across −40°C to +85°C ambient temperature with specified performance at both ±15 V (full dynamic range) and ±5 V (portable systems). Input stage features JFET-based differential pair for low bias current (1–3 µA) and high input impedance (40 MΩ common-mode), while output stage provides rail-to-rail capable swing into 100 Ω loads.
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 high-definition video bandwidths and wideband active filtering up to ~30 MHz closed-loop. |
| −3-dB Bandwidth (AV = +2) | 75 MHz (±15 V) - matches NTSC/PAL baseband requirements and ensures minimal group delay in composite video paths. |
| Supply Current | 2.5 mA - allows integration into power-sensitive instrumentation and portable video equipment without thermal penalty. |
| CMRR | 110 dB - rejects common-mode noise in noisy industrial or broadcast environments, preserving signal integrity in differential-sense applications. |
| Output Drive | ±116 mA (sourcing/sinking, RL = 100 Ω) - directly drives 75 Ω coaxial lines or multiple downstream inputs without external buffers. |
| Input Voltage Noise | 12 nV/√Hz @ 10 kHz - maintains SNR > 70 dB in 10 MHz-bandwidth video channels with 1 VPP signal. |
Pinout & Package
The LM6171BIM is housed in an 8-pin SOIC (D package), 4.9 mm × 6 mm body size, surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 8 | N/C | No internal connection; must be left floating or tied to ground/V+ for mechanical stability - no electrical function. |
| 2 | −IN | Inverting input; accepts feedback network for precise gain control and stable closed-loop configurations. |
| 3 | +IN | Non-inverting input; high-impedance node (40 MΩ) for sensor interfacing or reference-level signal injection. |
| 4 | V− | Negative supply rail; supports dual supplies down to ±5 V - critical for symmetric clipping and DC-coupled video paths. |
| 6 | OUTPUT | Low-impedance, high-current output; capable of ±116 mA into 100 Ω, enabling direct 75 Ω line driving. |
| 7 | V+ | Positive supply rail; accepts up to ±15 V for maximum dynamic range (±13.3 V swing into 1 kΩ). |
Key Features
| Feature | Design Value |
|---|---|
| Voltage-feedback topology | Enables intuitive gain-setting with resistive networks and predictable frequency response - no current-feedback layout sensitivity. |
| Unity-gain stability | Operates stably at AV = +1 without external compensation, simplifying design for buffer and gain-of-one video distribution. |
| High output current drive | Delivers ±116 mA into 100 Ω, eliminating need for external driver stages in 75 Ω broadcast line applications. |
| Low distortion (HD2/HD3 < −70 dBc) | Maintains color fidelity and luminance accuracy in NTSC/PAL/SECAM systems with minimal differential gain/phase error (0.03%/0.5°). |
| Dual-supply operation (±5 V to ±15 V) | Supports both portable (±5 V) and professional broadcast (±15 V) use cases within same footprint and pinout. |
Applications
| Video Line Driver | ADC/DAC Buffer |
|---|---|
Use Scenario: Driving 75 Ω coaxial cable in broadcast studio routing switchers or CCTV matrix systems. IC Role / Device Role / Timing Role: High-current, low-distortion voltage buffer with matched impedance termination capability. Use Value: Preserves composite video signal integrity over 100 m cable runs with <0.03% differential gain error and <0.5° phase shift at 3.58 MHz. | Use Scenario: Isolating high-resolution SAR ADC inputs from multiplexer switching transients in data acquisition systems. IC Role / Device Role / Timing Role: Low-noise, fast-settling (21 ns, 0.1%) input buffer with high CMRR to reject digital coupling noise. Use Value: Enables 16-bit effective resolution by limiting THD to <−70 dBc and maintaining SNR > 75 dB at 100 kHz. |
| HDTV Signal Amplifier | Active Filter Stage |
Use Scenario: Amplifying RGB or YPbPr component video signals in 1080p consumer displays before HDMI encoding. IC Role / Device Role / Timing Role: Wideband gain block (75 MHz −3-dB BW) with rail-to-rail output swing into 100 Ω loads. Use Value: Supports full 30 MHz video bandwidth with <0.1 dB flatness and <1° group delay variation - meeting ITU-R BT.709 timing specs. | Use Scenario: Implementing 5th-order low-pass anti-aliasing filter in medical ultrasound front-ends. IC Role / Device Role / Timing Role: High-slew-rate op-amp in Sallen-Key or MFB topology with unity-gain stability and low noise floor. Use Value: Achieves >80 dB stopband attenuation at 2× cutoff while maintaining <10 ns group delay ripple across passband. |
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 |
|---|---|---|---|
| THS3091D | Higher slew rate (2000 V/μs), lower supply current (4.5 mA), but requires external compensation for unity-gain stability. | Better suited for precision pulse amplification where stability margin is managed externally; not drop-in for LM6171BIM's uncompensated unity-gain use. | Select THS3091D only when designing custom-compensated circuits requiring higher speed than LM6171BIM's 3600 V/μs limit. |
| OPA695ID | Current-feedback architecture (not voltage-feedback), 1.7 GHz GBW, 4300 V/μs slew rate, but higher input bias current (12 µA) and no guaranteed unity-gain stability. | Preferred for ultra-wideband RF sampling buffers or optical receiver TIA post-amplifiers - incompatible with standard voltage-feedback gain networks. | Choose OPA695ID only for applications demanding >500 MHz closed-loop bandwidth where voltage-feedback limitations are reached. |
Compared with THS3091D and OPA695ID, the LM6171BIM uniquely combines unity-gain stability, 3600 V/μs slew rate, and low 2.5 mA quiescent current in a single SOIC-8 package - making it optimal for cost-sensitive, space-constrained video and instrumentation designs requiring plug-and-play high-speed amplification.
Availability
LM6171BIM is available at Aetrix Electronics and suitable for video line driving, ADC/DAC buffering, and HDTV signal amplification requiring stable component supply, long-term industrial lifecycle support, and consistent parametric performance across temperature.
Supply support for LM6171BIM 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 LM6171 product line was engineered specifically for broadcast video, instrumentation, and high-fidelity analog signal conditioning - prioritizing speed, low distortion, and robust dual-supply operation in compact packages.
FAQ
What is the maximum recommended supply voltage for LM6171BIM?
The absolute maximum supply voltage (V+ – V−) for LM6171BIM is 36 V. Operation at ±15 V (30 V total) is fully specified and recommended for maximum dynamic range. Exceeding ±15 V risks exceeding junction temperature limits under load and is not characterized per datasheet specifications.
Does LM6171BIM support single-supply operation?
LM6171BIM is not characterized for true single-supply operation. It requires dual supplies (e.g., ±5 V or ±15 V) to maintain specified input common-mode range, output swing, and distortion performance. For single-supply applications, consider rail-to-rail input/output op-amps like the OPA355 or TLV2462.
What is the typical input offset voltage for LM6171BIM at 25°C?
The typical input offset voltage for LM6171BIM at 25°C and ±15 V supply is 6 mV, with a maximum of 8 mV over the full −40°C to +85°C operating temperature range. This value is confirmed in Section 5.5 of the official TI datasheet (SNOS745D).
Can LM6171BIM drive a 75 Ω coaxial cable directly?
Yes, LM6171BIM can drive 75 Ω coaxial cable directly: its output delivers ±116 mA into 100 Ω (Section 5.5), exceeds the 40 mA required for 75 Ω termination at ±3 V, and maintains <0.03% differential gain error - verified in video test conditions per Figure 5-44 through 5-51 of the LM6171BIM datasheet.
Is LM6171BIM pin-compatible with other members of the LM6171 family?
Yes, LM6171BIM shares identical SOIC-8 pinout and package dimensions with LM6171AIM and LM6171M, differing only in AC/DC performance grades (e.g., unity-gain bandwidth: 100 MHz for B-grade vs 76 MHz for A-grade). No PCB redesign is needed when upgrading between LM6171 variants in the same package.
LM6171BIM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- VIP™ III
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- 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
LM6171BIM FAQ
1.How can I place an order for LM6171BIM through Aetrix?
Please submit a Request for Quotation (RFQ) for LM6171BIM 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 LM6171BIM reliable?
The price and inventory of LM6171BIM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM6171BIM is usually 5 days.
3.What payment methods are accepted for LM6171BIM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM6171BIM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM6171BIM?
LM6171BIM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM6171BIM 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 LM6171BIM?
For technical support, including LM6171BIM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM6171BIM requirements.
6.How does Aetrix verify that LM6171BIM is sourced from the original manufacturer or authorized distributors?
All LM6171BIM 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 LM6171BIM meets industry standards.
7.What is the process for return or replacement of LM6171BIM?
All LM6171BIM units undergo pre-shipment inspection (PSI). If there is an issue with LM6171BIM, 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 LM6171BIM part is unused and in its original packaging.
Return procedure for LM6171BIM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM6171BIM Tags
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