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Texas Instruments LM6584MA
- Part No.:
- LM6584MA
- Manufacturer:
- Texas Instruments
- Category:
- Video Amps and Modules
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM6584MA.pdf
- Description:
- IC AMP GENERAL PURPOSE 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,027
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Product details
Overview
LM6584MA from Texas Instruments is a quad, rail-to-rail input/output operational amplifier optimized for TFT-LCD panel VCOM driving, gamma buffering, and repair amplification. It delivers ±310/−410mA peak output current, 24MHz −3dB bandwidth, 11V/μs slew rate, and operates from 5V to 13V supply with 750μA per amplifier quiescent current.
For engineers reviewing the LM6584MA datasheet, LM6584MA pinout, LM6584MA application, or LM6584MA equivalent, this page provides verified specifications, SOIC-14/TSSOP-14 pin mapping, real-world LCD timing roles, and validated alternative options for high-current, rail-to-rail buffer designs.
Technical Context
The LM6584MA integrates four unity-gain-stable amplifiers using TI's VIP10 complementary bipolar process. Its dual-input-stage architecture enables rail-to-rail common-mode input (V− −0.5V to V+ +0.5V), while its robust output stage supports 75mA continuous sourcing/sinking and 310mA/410mA peak drive into capacitive loads typical of LCD column capacitance.
It achieves 270ns 0.1% settling time at ±1V step (5V supply) and maintains ≥56° phase margin across temperature and supply voltage (5V–13V), ensuring stability in unity-gain configurations driving up to 30pF directly or >330nF with guaranteed re-stabilization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 5V to 13V - supports single-supply LCD bias rails and split supplies (±2.5V to ±6.5V) |
| Output Swing (RL = 2kΩ) | Within 50mV of rails - maximizes dynamic range for VCOM and gamma reference voltages |
| Continuous Output Current | ±75mA per amplifier - sustains DC bias for large-area LCD panels without thermal derating |
| Peak Short-Circuit Current | +310mA / −410mA - charges/discharges pixel capacitance during fast gamma transitions |
| −3dB Bandwidth (AV = +1) | 24MHz - enables high-fidelity reproduction of repair signals up to ~10MHz fundamental |
| Slew Rate | 11V/μs - ensures <270ns settling for 2V steps, critical for sub-frame timing in high-refresh displays |
| Input Common-Mode Range | V− −0.5V to V+ +0.5V - accepts full-rail input signals including digital logic-level references |
Pinout & Package
LM6584MA is available in 14-pin SOIC (D package) and TSSOP (PW package), both with identical pinout. The device uses standard quad op-amp pin assignment with independent inputs and outputs per channel, plus shared V+ and V− supply pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives VCOM or gamma segment line; capable of ±310/−410mA peak |
| 2 | IN A− | Inverting input A - used in inverting gain configurations or as feedback node for buffers |
| 3 | IN A+ | Non-inverting input A - accepts reference voltage for VCOM/gamma buffer applications |
| 4 | V+ | Positive supply - connects to main LCD bias rail (e.g., +12V or +5V); decoupling required |
| 5 | IN B+ | Non-inverting input B - dedicated input for second gamma channel or repair buffer |
| 6 | IN B− | Inverting input B - supports differential sensing or feedback in multi-channel systems |
| 7 | OUT B | Amplifier B output - independent high-current output for parallel gamma string or redundancy |
| 8 | OUT C | Amplifier C output - third high-drive output for segmented VCOM or auxiliary display functions |
| 9 | IN C− | Inverting input C - matches pin 2/6 functionality for third channel |
| 10 | IN C+ | Non-inverting input C - matches pin 3/5 functionality for third channel |
| 11 | V− | Negative supply - connects to ground (single-supply) or negative rail (±2.5V to ±6.5V) |
| 12 | IN D+ | Non-inverting input D - fourth channel input for full quad gamma/VCOM implementation |
| 13 | IN D− | Inverting input D - fourth channel inverting input |
| 14 | OUT D | Amplifier D output - fourth independent high-current output for full-panel coverage |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input and output | Enables direct interface with digital DACs and full-swing LCD bias networks without level-shifting |
| 75mA continuous output per channel | Supports sustained DC loading of large-area TFT panels without thermal shutdown or gain compression |
| 24MHz unity-gain bandwidth | Preserves fidelity of high-frequency repair signals and fast gamma calibration waveforms |
| 270ns 0.1% settling time | Meets sub-microsecond timing budgets for high-refresh-rate (≥120Hz) display systems |
| Stable with 30pF capacitive load | Eliminates need for external isolation resistors when driving long PCB traces or panel capacitance |
Applications
| LCD Panel VCOM Driver | LCD Panel Gamma Buffer |
|---|---|
Use Scenario: Generating stable common electrode voltage for active-matrix LCD panels to control pixel transmittance uniformly across screen area. IC Role / Device Role / Timing Role: Quad unity-gain buffer delivering low-noise, high-current DC bias; each amplifier drives one VCOM segment under microcontroller or DAC control. Use Value: 50mV rail-to-rail swing and 75mA continuous output maintain <0.1% VCOM drift under varying panel capacitance and temperature. |
Use Scenario: Replicating and distributing precise gamma correction voltages to multiple LCD column driver ICs for grayscale accuracy. IC Role / Device Role / Timing Role: High-speed, low-offset buffer amplifying DAC outputs to 14+ gamma reference levels; operates at DC to ~5MHz. Use Value: 24MHz bandwidth and 11V/μs slew rate preserve gamma step integrity during rapid brightness transitions in HDR content. |
| LCD Panel Repair Amp | TFT Display Calibration System |
Use Scenario: Injecting high-fidelity test signals into LCD data lines to identify and compensate for pixel defects or column shorts during manufacturing. IC Role / Device Role / Timing Role: Fast-settling, high-output-current amplifier generating programmable AC-coupled repair waveforms synchronized to gate driver timing. Use Value: 270ns 0.1% settling and ±310/−410mA peak current enable clean 10MHz+ repair pulses without edge ringing or overshoot. |
Use Scenario: Real-time adjustment of VCOM and gamma references during factory calibration to compensate for panel-to-panel variation and aging effects. IC Role / Device Role / Timing Role: Precision quad buffer with low TC VOS (5μV/°C) and high CMRR (75dB) maintaining reference stability over −40°C to +85°C. Use Value: Input offset drift ≤4mV over full temperature range ensures <0.5% gamma error after 5-year field operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-output-current, rail-to-rail op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM6582MA | Dual-channel version; same specs per channel but only two amplifiers in SOIC-8/TSSOP-8 | Suitable for smaller panels or partial gamma sets where only two high-current buffers needed | Select when board space or cost constraints favor dual-channel density and quad functionality is unnecessary |
| LMH6629MA | Single-channel, 450MHz GBW, 1200V/μs slew, but lower output current (±100mA) and no rail-to-rail input | Better for wideband signal conditioning; unsuitable for VCOM DC bias due to limited input range and current | Choose only for ultra-high-speed repair signal generation where bandwidth outweighs current and rail compliance needs |
Compared with LM6582MA and LMH6629MA, the LM6584MA uniquely combines quad-channel integration, ±310/−410mA peak drive, rail-to-rail I/O, and 24MHz bandwidth-making it the only option qualified for full-panel VCOM + gamma + repair in a single SOIC-14 package.
Availability
LM6584MA is available at Aetrix Electronics and suitable for TFT-LCD panel manufacturing, display module calibration, and industrial HMI display repair requiring stable component supply across extended production lifecycles.
Supply support for LM6584MA 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 power management technologies, with decades of experience in display interface and high-performance amplifier design.
The LM6584MA belongs to TI's precision high-output-current op amp product line, engineered specifically for TFT-LCD panel VCOM drivers, gamma buffers, and repair amplifiers demanding rail-to-rail operation and robust capacitive load drive.
FAQ
What is the maximum continuous output current per channel of the LM6584MA?
The LM6584MA delivers ±75mA continuous output current per amplifier under specified thermal conditions. This rating is maintained across the full operating temperature range (−40°C to +85°C) with appropriate PCB copper area and airflow. Exceeding this current continuously risks junction temperature rise beyond 150°C, especially in the higher-thermal-resistance TSSOP package. The LM6584MA datasheet confirms this value in both 5V and 13V DC electrical characteristics tables.
Does the LM6584MA support rail-to-rail input operation?
Yes, the LM6584MA supports true rail-to-rail input operation with a common-mode voltage range extending 0.5V beyond both supply rails (V− −0.5V to V+ +0.5V). This capability is explicitly stated in the Features section and verified in the DC Electrical Characteristics tables for both 5V and 13V supplies. It enables direct interfacing with digital logic and DAC outputs without external level-shifting circuitry.
What is the typical slew rate and settling time of the LM6584MA?
The LM6584MA has a typical slew rate of 11V/μs (measured at 5V supply) and a 0.1% settling time of 270ns for a ±1V step. These values are confirmed in the 5V AC Electrical Characteristics table and Typical Performance Characteristics Figure 11. The fast settling supports high-refresh-rate display systems where timing margins are tight, and the slew rate ensures faithful reproduction of gamma calibration waveforms.
Which packages are available for the LM6584MA?
The LM6584MA is offered in two industry-standard packages: 14-pin SOIC (D package) and 14-pin TSSOP (PW package). Both share identical pinouts and electrical specifications. Thermal resistance differs: SOIC has θJA = 145°C/W, while TSSOP has θJA = 155°C/W. The LM6584MA datasheet's Ordering Information and Thermal Resistance tables confirm these package options and their respective dissipation limits.
Is the LM6584MA unity-gain stable?
Yes, the LM6584MA is unity-gain stable, as explicitly stated in the Features section and verified by its ≥56° phase margin across operating conditions. The device remains stable driving up to 30pF capacitive load in unity-gain configuration and recovers stability at >330nF, per Figure 15 in the datasheet. This eliminates the need for external compensation in standard buffer applications like VCOM and gamma distribution.
LM6584MA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- General Purpose
- Output Type:
- Rail-to-Rail
- Number of Circuits:
- 4
- -3db Bandwidth:
- 24 MHz
- Slew Rate:
- 15V/µs
- Current - Supply:
- 780 µA
- Current - Output / Channel:
- 75 mA
- Voltage - Supply, Single/Dual (±):
- 5V ~ 13V, ±2.5V ~ 6.5V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 14-SOIC
LM6584MA FAQ
1.How can I place an order for LM6584MA through Aetrix?
Please submit a Request for Quotation (RFQ) for LM6584MA 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 LM6584MA reliable?
The price and inventory of LM6584MA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM6584MA is usually 5 days.
3.What payment methods are accepted for LM6584MA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM6584MA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM6584MA?
LM6584MA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM6584MA 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 LM6584MA?
For technical support, including LM6584MA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM6584MA requirements.
6.How does Aetrix verify that LM6584MA is sourced from the original manufacturer or authorized distributors?
All LM6584MA 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 LM6584MA meets industry standards.
7.What is the process for return or replacement of LM6584MA?
All LM6584MA units undergo pre-shipment inspection (PSI). If there is an issue with LM6584MA, 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 LM6584MA part is unused and in its original packaging.
Return procedure for LM6584MA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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