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Texas Instruments LM7171BIN/NOPB
- Part No.:
- LM7171BIN/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LM7171BIN/NOPB.pdf
- Description:
- IC VOLTAGE FEEDBACK 1 CIRC 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:788
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Product details
Overview
LM7171BIN/NOPB from Texas Instruments is a very high-speed, voltage-feedback amplifier optimized for video distribution, pulse amplification, and high-frequency signal conditioning. It delivers 4100 V/μs slew rate, 200 MHz unity-gain bandwidth, 100 mA output current, and operates stably at gains ≥ +2 or −1 - enabling use in HDSL drivers, professional video cameras, and laser diode interfaces.
For engineers reviewing the LM7171BIN/NOPB datasheet, LM7171BIN/NOPB pinout, LM7171BIN/NOPB application, or LM7171BIN/NOPB equivalent, key selection criteria include ±15V/±5V dual-supply operation, low THD (−75 dBc at 5 MHz), differential gain/phase accuracy (0.01%/0.02°), and SOIC-8 thermal performance (RθJA = 122.5°C/W).
Technical Context
The LM7171BIN/NOPB employs a symmetrical Class AB input stage with triple-buffered output architecture to achieve CFA-like slew performance while retaining standard VFA configuration flexibility. Its internal degeneration resistor (RE) sets slew rate proportionality to input voltage, enabling predictable large-signal response across ±5V and ±15V supplies.
It maintains stability with noise gain ≥ +2 via phase margin of 50° (±15V) or 57° (±5V), supports capacitive loads up to 1000 pF without oscillation, and provides rail-to-rail output swing (±13.3 V into 1 kΩ at ±15V) with <0.1% settling in 42 ns (LM7171B grade).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Slew Rate | 4100 V/μs at ±15V - enables clean 13-VPP pulses at >100 MHz without distortion |
| Unity-Gain Bandwidth | 200 MHz (LM7171B) - supports full-power operation up to 100 MHz with 2× gain |
| Output Current | 100 mA sourcing/sinking into 100 Ω - drives coaxial cables, transformers, or laser diodes directly |
| Supply Current | 6.5 mA typical - achieves high speed with low power overhead in portable or multi-channel systems |
| Differential Gain/Phase | 0.01% / 0.02° - meets broadcast-grade video fidelity requirements (SMPTE 253M) |
| THD + Noise | −75 dBc at 5 MHz (±15V, RL = 100 Ω) - preserves signal integrity in ADC/DAC interface and RF IF stages |
| Input Offset Voltage | 1 mV max (LM7171A), 3 mV max (LM7171B) - minimizes DC error in precision gain blocks and active filters |
Pinout & Package
LM7171BIN/NOPB is housed in an 8-pin SOIC (D package), 4.90 mm × 6.00 mm body size with standard JEDEC MS-012AC footprint. Thermal resistance RθJA = 122.5°C/W enables reliable operation up to +85°C ambient without forced airflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 8 | No Connection | Internally unconnected; must remain floating - no tie to ground or supply |
| 2 | Inverting Input | High-impedance node for feedback network connection; accepts standard resistive divider configurations |
| 3 | Noninverting Input | High-impedance input for signal source; supports single-ended or differential input topologies |
| 4 | Negative Supply (V−) | Connects to −15V or −5V rail; decoupling capacitor required within 1 cm for stability |
| 6 | Output | Capable of ±13.3 V swing into 1 kΩ; drives 75-Ω video lines or 50-Ω RF traces directly |
| 7 | Positive Supply (V+) | Connects to +15V or +5V rail; requires local 0.1 μF ceramic + 10 μF tantalum bypassing |
Key Features
| Feature | Design Value |
|---|---|
| Voltage-feedback topology with CFA-level slew | Enables traditional op-amp circuits (I/V converters, integrators) while achieving 4100 V/μs - unlike true CFAs |
| Stable at noise gain ≥ +2 | Eliminates need for external compensation in gain-of-two video buffers or inverting amplifiers |
| ±5V and ±15V operation support | Single design covers both portable (±5V) and industrial/video (±15V) applications without redesign |
| Low harmonic distortion | HD2/HD3 ≤ −75 dBc/−88 dBc at 5 MHz ensures minimal spectral regrowth in CATV and fiber-optic transmitters |
| 100 mA linear output drive | Drives 75-Ω video loads, 50-Ω transmission lines, or laser diodes without external buffer stages |
Applications
| HDSL Line Driver | Professional Video Camera Signal Chain |
|---|---|
Use Scenario: Amplifying and driving differential DSL signals over twisted-pair copper with minimal group delay variation. IC Role / Device Role / Timing Role: Final-stage line driver delivering 100 mA into 100 Ω load with 220 MHz −3dB bandwidth at AV = +2. Use Value: Maintains signal fidelity across 1–30 MHz band with <0.02° phase nonlinearity, reducing echo cancellation complexity. | Use Scenario: Buffering RGB/YUV analog video signals before ADC sampling or distribution to multiple monitors. IC Role / Device Role / Timing Role: High-fidelity video amplifier with 0.01% differential gain error and 0.02° phase error per SMPTE 253M. Use Value: Preserves color accuracy and edge sharpness in 1080p/60Hz broadcast systems without post-correction. |
| Laser Diode Driver (Pulsed) | HDTV Analog Output Stage |
Use Scenario: Delivering fast current pulses to edge-emitting laser diodes in optical time-domain reflectometers. IC Role / Device Role / Timing Role: High-current, high-slew-rate voltage-controlled current source using external sense resistor. Use Value: Achieves <10 ns rise/fall times with 13-V step into 50 Ω, enabling sub-nanosecond optical pulse resolution. | Use Scenario: Driving legacy CRT or analog monitor inputs from digital video processors in consumer HDTV platforms. IC Role / Device Role / Timing Role: 75-Ω terminated output amplifier with rail-to-rail swing (±3.4 V at ±5V) and <42 ns 0.1% settling. Use Value: Supports 1080i/720p analog outputs with zero visible ghosting or ringing on sharp transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM7171MA/NOPB | Same electrical specs; PDIP-8 package (9.81 × 9.43 mm), higher RθJA = 108°C/W | Preferred for prototyping or through-hole PCBs; unsuitable for high-density surface-mount layouts | Select when manual soldering, breadboarding, or thermal mass requirements favor DIP over SOIC |
| THS3201DR | Higher slew rate (6000 V/μs), lower supply current (5.5 mA), but only specified for ±15V; no ±5V rating | Optimized for fixed high-voltage systems; lacks dual-supply flexibility and video-grade distortion specs | Choose for ultra-fast pulse applications where ±5V operation and broadcast video linearity are not required |
Compared with LM7171MA/NOPB and THS3201DR, LM7171BIN/NOPB uniquely balances SOIC-8 compactness, dual-supply versatility (±5V/±15V), and broadcast-grade video fidelity - making it optimal for space-constrained, multi-voltage, and video-critical designs.
Availability
LM7171BIN/NOPB is available at Aetrix Electronics and suitable for HDSL line drivers, professional video camera signal chains, and pulsed laser diode interfaces requiring stable component supply, long-term manufacturability, and TI's enhanced product change notification (PCN) process.
Supply support for LM7171BIN/NOPB 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 high-performance signal chain solutions.
The LM7171 series belongs to TI's high-speed operational amplifier product line, engineered specifically for demanding video, communications, and test equipment applications where speed, linearity, and output drive capability are critical.
FAQ
What supply voltages does the LM7171BIN/NOPB support?
The LM7171BIN/NOPB is fully specified for operation from ±5V (10 V total) and ±15V (30 V total) supplies. It functions across the full recommended range of 5.5 V to 36 V total supply voltage, with performance metrics including slew rate, bandwidth, and output swing explicitly characterized at both ±5V and ±15V in the official datasheet. This dual-supply flexibility makes LM7171BIN/NOPB suitable for both portable and industrial applications.
Is the LM7171BIN/NOPB stable in unity-gain configuration?
No - the LM7171BIN/NOPB is not unity-gain stable. It is designed for minimum stable noise gain of +2 (noninverting) or −1 (inverting). Attempting unity-gain operation will result in oscillation due to insufficient phase margin. For unity-gain applications, consider alternatives such as the OPA695 or THS3091, which are explicitly unity-gain stable. The LM7171BIN/NOPB datasheet confirms stability only at AV ≥ +2 or AV ≤ −1.
What is the maximum capacitive load the LM7171BIN/NOPB can drive without compensation?
The LM7171BIN/NOPB can safely drive up to 1000 pF of capacitive load without external compensation while maintaining stability and specified settling time. This is validated in Figures 5-32 and 5-33 of the datasheet, which show closed-loop frequency response with CL = 1000 pF at ±5V and ±15V. For loads exceeding 1000 pF, a small series resistor (e.g., 10–50 Ω) at the output is recommended to isolate capacitance and preserve phase margin.
Does the LM7171BIN/NOPB have ESD protection, and what are its ratings?
Yes, the LM7171BIN/NOPB includes integrated ESD protection rated per industry standards: ±2500 V HBM (Human Body Model) and ±1500 V CDM (Charged Device Model). These values are specified in Section 5.2 of the SNOS760D datasheet and reflect TI's robust process design. Proper handling per ANSI/ESDA-JEDEC JS-001 and JS-002 is still required during assembly to prevent latent damage.
How does the LM7171BIN/NOPB compare to current-feedback amplifiers (CFAs) in layout and application?
Unlike CFAs, the LM7171BIN/NOPB features high-impedance inputs on both inverting and noninverting terminals, allowing standard op-amp configurations - including photodiode transimpedance amplifiers, integrators, and active filters with feedback capacitors. CFAs require low-impedance inverting inputs and cannot tolerate feedback capacitance without instability. The LM7171BIN/NOPB delivers CFA-class slew (4100 V/μs) while retaining VFA design familiarity and circuit versatility.
LM7171BIN/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- VIP™ III
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 4100V/µs
- Gain Bandwidth Product:
- 200 MHz
- -3db Bandwidth:
- 220 MHz
- Current - Input Bias:
- 2.7 µA
- Voltage - Input Offset:
- 200 µV
- Current - Supply:
- 6.5mA
- Current - Output / Channel:
- 118 mA
- Voltage - Supply Span (Min):
- 5.5 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
LM7171BIN/NOPB FAQ
1.How can I place an order for LM7171BIN/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM7171BIN/NOPB 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 LM7171BIN/NOPB reliable?
The price and inventory of LM7171BIN/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM7171BIN/NOPB is usually 5 days.
3.What payment methods are accepted for LM7171BIN/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM7171BIN/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM7171BIN/NOPB?
LM7171BIN/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM7171BIN/NOPB 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 LM7171BIN/NOPB?
For technical support, including LM7171BIN/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM7171BIN/NOPB requirements.
6.How does Aetrix verify that LM7171BIN/NOPB is sourced from the original manufacturer or authorized distributors?
All LM7171BIN/NOPB 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 LM7171BIN/NOPB meets industry standards.
7.What is the process for return or replacement of LM7171BIN/NOPB?
All LM7171BIN/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM7171BIN/NOPB, 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 LM7171BIN/NOPB part is unused and in its original packaging.
Return procedure for LM7171BIN/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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