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Texas Instruments LMH6683MTX/NOPB
- Part No.:
- LMH6683MTX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMH6683MTX/NOPB.pdf
- Description:
- IC OPAMP VFB 3 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,339
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Product details
Overview
LMH6683MTX/NOPB from Texas Instruments is a triple, high-speed, single-supply voltage-feedback operational amplifier optimized for video signal conditioning. It delivers 190MHz −3dB bandwidth (A = +2, ±5V), 940V/μs slew rate, 0.01% differential gain error, and 0.08° differential phase error at NTSC 3.58MHz - enabling precision composite video amplification in portable and embedded systems.
For engineers reviewing the LMH6683MTX/NOPB datasheet, LMH6683MTX/NOPB pinout, LMH6683MTX/NOPB application, or LMH6683MTX/NOPB equivalent, key selection criteria include video-grade AC performance (DG/DP), rail-to-rail output swing capability (0.8V from rails into 2kΩ), input common-mode range extending 0.5V beyond V− and 1.7V from V+, and immunity to output phase reversal under input overdrive.
Technical Context
The LMH6683MTX/NOPB employs a voltage-feedback topology with a class-AB input stage that delivers exponential transconductance versus input differential voltage - enabling higher slew rate at large signal amplitudes without saturation. This architecture supports stable operation at gains ≥ +2 and ≤ −1 while maintaining low distortion and fast settling (42ns to ±0.1%).
Its VIP10 BiCMOS process enables high speed with low quiescent current (6.5mA per channel), wide input common-mode range (−5.5V to +3.3V on ±5V supplies), and robust output drive (+85/−80mA) into 150Ω loads. The device is explicitly immune to output phase reversal when inputs exceed specified common-mode limits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3dB Bandwidth | 190MHz at A = +2 (±5V); ensures full NTSC/PAL video bandwidth with margin |
| Slew Rate | 940V/μs (±5V); supports clean 6VPP transient response without slewing distortion |
| Differential Gain Error | 0.01% (NTSC 3.58MHz); preserves color saturation accuracy in cascaded video chains |
| Differential Phase Error | 0.08° (NTSC 3.58MHz); maintains precise hue fidelity across DC levels and loads |
| Input Common-Mode Range | Extends 0.5V below V− and 1.7V from V+ (±5V); enables ground-referenced video input buffering |
| Output Voltage Swing | 0.8V from either rail into 2kΩ; maximizes dynamic range in single-supply video systems |
| Supply Current per Channel | 6.5mA (typical); enables triple-amplifier integration in power-constrained portable designs |
Pinout & Package
TSSOP-14 package (4.4mm × 5.0mm, 0.65mm pitch), thermally enhanced for high-speed operation in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | High-current, low-impedance output capable of ±85/−80mA drive into 150Ω |
| 2 (−IN A) | Inverting input A | High-impedance node; accepts input signals down to 0.5V below V− |
| 3 (+IN A) | Non-inverting input A | High-impedance node; supports rail-to-rail common-mode input range |
| 4 (V−) | Negative supply | Ground reference in single-supply mode; must be connected to system GND |
| 5 (OUT B) | Amplifier B output | Independent output with identical AC/DC specs and phase-reversal immunity |
| 6 (−IN B) | Inverting input B | Electrically isolated from other channels; enables independent feedback networks |
| 7 (+IN B) | Non-inverting input B | Supports same input voltage range as Pin 3; no crosstalk degradation (−78dB @5MHz) |
| 8 (OUT C) | Amplifier C output | Third identical channel; allows full RGB or YUV signal path integration |
| 9 (−IN C) | Inverting input C | Matched bias and noise characteristics to Pins 2 and 6 |
| 10 (+IN C) | Non-inverting input C | Enables three independent video gain stages on one die with minimal board area |
| 11 (V+) | Positive supply | Accepts 3V–12V single supply or ±5V split supply; thermal pad improves θJA to 155°C/W |
| 12 (NC) | No connect | Internally unused; must remain unconnected per TI design guidelines |
| 13 (NC) | No connect | Internally unused; must remain unconnected |
| 14 (NC) | No connect | Internally unused; must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| Video-optimized AC performance | 0.01% DG / 0.08° DP at NTSC 3.58MHz ensures broadcast-grade color fidelity |
| Phase-reversal immunity | Outputs clamp at rail during input overvoltage - eliminates need for external clamping in servo/video front-ends |
| Rail-to-rail output swing | 0.8V from rails into 2kΩ preserves >80% of supply voltage as usable signal swing |
| Wide input common-mode range | Operates with inputs 0.5V below V− and 1.7V from V+ - supports ground-referenced video inputs |
| Triple-channel integration | Three matched amplifiers in one TSSOP-14 reduce PCB area vs. discrete SOIC-8 solutions by >40% |
Applications
| Composite Video Driver | ADC Input Buffer |
|---|---|
Use Scenario: Driving 75Ω coaxial cable in portable DVD players or set-top boxes with NTSC/PAL output. IC Role / Device Role / Timing Role: Final-stage video buffer delivering full-swing composite signal with minimal amplitude/phase distortion. Use Value: 0.01% DG/0.08° DP ensures color accuracy across temperature and load variations without calibration. |
Use Scenario: Conditioning analog video or sensor signals prior to high-speed ADC sampling (e.g., 10–40 MSPS). IC Role / Device Role / Timing Role: High-fidelity unity-gain or gain-of-two buffer isolating source impedance from ADC input capacitance. Use Value: 190MHz bandwidth and 940V/μs slew rate prevent settling errors and harmonic distortion at Nyquist frequencies. |
| Portable Communications Interface | Current Sense Amplifier |
Use Scenario: Signal conditioning in handheld test equipment or field-deployable comms analyzers with analog I/O. IC Role / Device Role / Timing Role: Low-noise, high-bandwidth amplifier for IF/RF baseband signal routing and level shifting. Use Value: 12nV/√Hz input voltage noise and −78dB crosstalk enable multi-channel simultaneous measurement integrity. |
Use Scenario: Bidirectional current sensing in battery management or motor control subsystems with <100mV sense drops. IC Role / Device Role / Timing Role: Precision difference amplifier with rail-to-rail input range accepting signals near ground or supply rails. Use Value: Input CMVR extends 0.5V below V− allows direct connection to shunt resistors referenced to system ground. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH6683MA/NOPB | SOIC-14 package; 145°C/W θJA vs. 155°C/W for TSSOP-14; identical electrical specs | Better thermal performance in low-airflow environments; larger footprint | Select LMH6683MA/NOPB for industrial ambient >70°C or where reflow profile requires lower thermal mass |
| THS3203DR | Single-channel, 1.8GHz GBW, higher power (12.5mA/ch), no DG/DP characterization | Optimized for RF/IF gain blocks, not video; lacks differential gain/phase validation | Choose THS3203DR only for non-video high-frequency gain applications requiring >500MHz bandwidth |
Compared with LMH6683MA/NOPB, the LMH6683MTX/NOPB offers 10°C/W lower thermal resistance in a 30% smaller footprint but requires tighter layout control for EMI; versus THS3203DR, it trades raw bandwidth for guaranteed video-linearity metrics and lower quiescent current.
Availability
LMH6683MTX/NOPB is available at Aetrix Electronics and suitable for composite video driver, ADC input buffer, portable communications interface, and current sense amplifier applications requiring stable component supply across automotive infotainment, medical imaging, and industrial test equipment programs.
Supply support for LMH6683MTX/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 and embedded processing technologies, with decades of expertise in high-speed op-amps and video signal chain solutions.
The LMH6683MTX/NOPB belongs to TI's LMH66xx video op-amp family, engineered specifically for broadcast-quality differential gain/phase performance in space-constrained, single-supply video systems.
FAQ
What is the maximum operating supply voltage for LMH6683MTX/NOPB?
The LMH6683MTX/NOPB supports a total supply voltage range of 3V to 12V (V+ − V−), with absolute maximum rating of 12.6V. At ±5V operation, it achieves its specified 190MHz bandwidth and 940V/μs slew rate. Exceeding 12.6V risks permanent damage per TI's Absolute Maximum Ratings table.
Does LMH6683MTX/NOPB support single-supply operation with ground-referenced inputs?
Yes. The LMH6683MTX/NOPB features an input common-mode voltage range extending 0.5V below V−. When V− = 0V (single-supply), inputs can go down to −0.5V - enabling direct connection to ground-referenced video sources or sensors without level-shifting circuitry.
What is the output short-circuit current capability of LMH6683MTX/NOPB?
The LMH6683MTX/NOPB delivers ±120mA short-circuit output current (sinking from or sourcing to V+/2) under ±5V supply conditions. Continuous short-circuit operation is permitted only if supply voltage remains below 6V at room temperature; above 6V, duration must be limited to 1.5ms per TI's Electrical Characteristics notes.
How does LMH6683MTX/NOPB achieve immunity to output phase reversal?
The LMH6683MTX/NOPB uses a proprietary input stage design that prevents transistor saturation during input overdrive. When inputs exceed the common-mode range, the output clamps predictably at the nearest supply rail instead of reversing polarity - a critical feature for servo loops and video sync circuits where phase inversion causes system failure.
Is LMH6683MTX/NOPB RoHS compliant and lead-free?
Yes. LMH6683MTX/NOPB carries the /NOPB suffix, indicating lead-free (Pb-free) construction with Sn (tin) lead finish. It meets RoHS Directive 2011/65/EU requirements and is rated MSL Level-1 (unlimited floor life at ≤30°C/60% RH) per TI's packaging documentation.
LMH6683MTX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMH®
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 3
- Output Type:
- -
- Slew Rate:
- 940V/µs
- Gain Bandwidth Product:
- 120 MHz
- -3db Bandwidth:
- 190 MHz
- Current - Input Bias:
- 5 µA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 6.5mA (x3 Channels)
- Current - Output / Channel:
- 85 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LMH6683MTX/NOPB FAQ
1.How can I place an order for LMH6683MTX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMH6683MTX/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 LMH6683MTX/NOPB reliable?
The price and inventory of LMH6683MTX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMH6683MTX/NOPB is usually 5 days.
3.What payment methods are accepted for LMH6683MTX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMH6683MTX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMH6683MTX/NOPB?
LMH6683MTX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMH6683MTX/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 LMH6683MTX/NOPB?
For technical support, including LMH6683MTX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMH6683MTX/NOPB requirements.
6.How does Aetrix verify that LMH6683MTX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMH6683MTX/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 LMH6683MTX/NOPB meets industry standards.
7.What is the process for return or replacement of LMH6683MTX/NOPB?
All LMH6683MTX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMH6683MTX/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 LMH6683MTX/NOPB part is unused and in its original packaging.
Return procedure for LMH6683MTX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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