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Texas Instruments LM6584MT/NOPB
- Part No.:
- LM6584MT/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Video Amps and Modules
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM6584MT/NOPB.pdf
- Description:
- IC AMP GENERAL PURPOSE 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,741
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Product details
Overview
LM6584MT/NOPB 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 at AV = +1, 11V/μs slew rate, and 50mV rail-to-rail output swing (RL = 2kΩ) under 5–13V supply operation.
For engineers reviewing the LM6584MT/NOPB datasheet, LM6584MT/NOPB pinout, LM6584MT/NOPB application, or LM6584MT/NOPB equivalent, key selection criteria include high-output-current capability into capacitive loads, 0.5V beyond-rail input common-mode range, fast settling (270ns @ 0.1%), unity-gain stability, and SOIC-14/TSSOP-14 packaging for space-constrained LCD timing circuits.
Technical Context
The LM6584MT/NOPB integrates four independent bipolar VIP10-process op-amps with dual-input-stage architecture: PNP pair active from V− − 0.5V to ~1V below V+, NPN pair active from ~1V below V+ to V+ + 0.5V. This enables true rail-to-rail input operation but introduces input offset voltage transition near V+ − 1V.
Its output stage uses complementary bipolar transistors capable of sourcing/sinking ≥75mA continuously and up to 310/410mA peak, enabling rapid charging/discharging of large panel capacitances (e.g., VCOM bus). Stability is ensured across 0–30pF capacitive load in unity gain, with phase margin ≥56° (5V) and ≥61° (13V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 5V to 13V single-supply or ±2.5V to ±6.5V split-supply - supports standard LCD bias rails and avoids level-shifting circuitry. |
| Output Swing (RL = 2kΩ) | Within 50mV of either rail - maximizes dynamic range for DC-biased VCOM and gamma reference voltages. |
| Continuous Output Current | ±75mA per amplifier - sustains stable drive into resistive/capacitive loads without thermal shutdown in typical LCD panel conditions. |
| −3dB Bandwidth (AV = +1) | 24MHz - enables accurate reproduction of high-frequency gamma correction signals and fast panel repair waveforms. |
| Slew Rate | 11V/μs - ensures minimal distortion on transient-rich video signals and rapid settling after pixel row switching. |
| Input Common-Mode Range | V− − 0.5V to V+ + 0.5V - allows direct connection to grounded or rail-referenced gamma DAC outputs without external biasing. |
| Settling Time (0.1%) | 270ns - meets tight timing windows in high-resolution TFT panels where column/frame update rates exceed 60Hz. |
Pinout & Package
LM6584MT/NOPB is packaged in a 14-pin SOIC (MT suffix) with standard JEDEC MS-012AC footprint (5.3mm width), compatible with automated assembly and reflow profiles for industrial LCD modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 8, 11 | Output A/B/C/D | Amplifier outputs - each drives dedicated VCOM segment, gamma tap, or repair signal line with rail-to-rail swing. |
| 2, 5, 9, 12 | Inverting Input A/B/C/D | Negative feedback node - connects to output for unity-gain buffer configuration used in all three LCD applications. |
| 3, 6, 10, 13 | Non-Inverting Input A/B/C/D | Reference input - accepts DC gamma voltage, VCOM setpoint, or AC repair waveform with 0.5V beyond-rail tolerance. |
| 7 | V+ | Positive supply - accepts 5–13V or +2.5V to +6.5V; decoupling capacitor required adjacent to pin for high-current transients. |
| 14 | V− | Negative supply or ground - must be low-impedance return path; sensitive to PSRR degradation above 1MHz. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input & output | Enables direct interface with 0V–5V or 0V–12V gamma DACs and VCOM DACs without external level shifters or bias networks. |
| 310/410mA peak output current | Charges/discharge multi-nanofarad panel capacitances (e.g., 10nF VCOM bus) within sub-microsecond intervals during frame updates. |
| Unity-gain stable | Eliminates need for external compensation in standard buffer configurations - reduces BOM count and layout complexity. |
| 270ns 0.1% settling time | Supports >120Hz refresh rates in QHD+ and UHD LCD panels by meeting strict inter-row settling deadlines. |
| −40°C to +85°C operating range | Validated for automotive dashboard displays, industrial HMIs, and medical monitors requiring extended temperature reliability. |
Applications
| VCOM Driver | Gamma Buffer |
|---|---|
Use Scenario: Driving the common electrode (VCOM) of an active-matrix TFT-LCD panel to establish precise DC bias against pixel voltages. IC Role / Device Role / Timing Role: Quad-channel unity-gain buffer delivering stable, low-noise DC voltage with minimal drift across temperature and process variation. Use Value: Maintains consistent pixel contrast ratio by holding VCOM within ±1mV despite 10nF bus capacitance and dynamic column-driver coupling currents. | Use Scenario: Buffering analog gamma correction voltages applied to source driver ICs to calibrate grayscale linearity across the display. IC Role / Device Role / Timing Role: High-impedance input / low-impedance output amplifier replicating 14-point gamma DAC outputs to multiple driver channels simultaneously. Use Value: Preserves gamma curve fidelity with <0.5mV offset error and <−53dBc harmonic distortion at 1MHz, ensuring accurate color reproduction. |
| Panel Repair Amp | High-Speed Reference Buffer |
Use Scenario: Injecting calibrated AC repair signals into defective pixel columns to restore uniform luminance in production-line LCD panel repair. IC Role / Device Role / Timing Role: Fast-settling, high-slew-rate amplifier generating precise square-wave or pulse-shaped repair stimuli synchronized to gate driver timing. Use Value: Delivers 10VPP repair waveforms with 270ns settling and <20ns propagation delay, enabling sub-pixel-level defect correction without ghosting. | Use Scenario: Stabilizing and distributing precision reference voltages (e.g., from bandgap or trimming DACs) to multiple analog blocks in LCD timing controllers. IC Role / Device Role / Timing Role: Low-drift, low-noise buffer isolating sensitive references from noisy digital supply domains and high-current switching loads. Use Value: Limits reference voltage error to <4mV over temperature using 0.7mV max input offset and 5μV/°C drift, improving ADC/DAC accuracy in timing ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail output current amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC074CDR | Lower output current (±50mA), lower slew rate (16V/μs), wider supply range (4.5–16V), higher input offset (3mV typ) | Not suitable for direct VCOM drive into >5nF loads; better for general-purpose gamma buffering where peak current <30mA | Select TLC074CDR only when power efficiency (600μA/amp) and wide supply tolerance outweigh peak drive needs. |
| OPA4991IDR | Higher precision (125μV VOS), lower noise (10.5nV/√Hz), lower output current (±65mA), no beyond-rail input | Preferred for metrology-grade gamma references; unsuitable for VCOM repair due to limited short-circuit current and no rail-overdrive input | Choose OPA4991IDR when DC accuracy and low noise dominate over dynamic panel drive capability. |
Compared with TLC074CDR and OPA4991IDR, LM6584MT/NOPB uniquely combines 310mA sourcing, 0.5V beyond-rail input, and 24MHz bandwidth - making it the only option among the three qualified for full-spectrum TFT-LCD panel driving including VCOM, gamma, and repair functions in a single device.
Availability
LM6584MT/NOPB is available at Aetrix Electronics and suitable for TFT-LCD VCOM drivers, gamma voltage buffers, and panel repair amplifiers requiring stable component supply across automotive, industrial HMI, and medical display programs.
Supply support for LM6584MT/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 logic technologies with broad industrial, automotive, and consumer applications.
The LM6584MT/NOPB belongs to TI's high-output-current, rail-to-rail op-amp product line designed specifically for TFT-LCD timing and biasing circuits - emphasizing drive strength, speed, and DC precision in compact packages.
FAQ
What is the maximum continuous output current per channel of the LM6584MT/NOPB?
The LM6584MT/NOPB supports ±75mA continuous output current per amplifier under specified thermal conditions. This rating is validated for sustained operation with RL = 2kΩ and ambient temperatures up to +85°C. Exceeding this current continuously may cause junction temperature to exceed 150°C, especially in the TSSOP package. The LM6584MT/NOPB also provides ±310/−410mA peak short-circuit current, intended for transient capacitive loading rather than steady-state delivery.
Does the LM6584MT/NOPB support single-supply operation at 5V?
Yes, the LM6584MT/NOPB is fully specified for single-supply operation from 5V to 13V. At VS = 5V, it delivers 4.85V high output swing and 0.15V low output swing (RL = 2kΩ), maintains 24MHz −3dB bandwidth, and achieves 270ns 0.1% settling time. Input common-mode range extends from −0.2V to +5.2V, enabling direct interface with 0–5V gamma DACs. All electrical characteristics in the 5V DC and AC tables of the SNOSA44C datasheet confirm guaranteed performance at this supply.
Can the LM6584MT/NOPB drive a 10nF capacitive load stably in unity-gain configuration?
The LM6584MT/NOPB is stable with up to 30pF capacitive load in unity-gain configuration, as confirmed by phase margin measurements (≥56° at 5V, ≥61° at 13V). For 10nF loads - typical of VCOM buses - external isolation resistance (e.g., 10Ω–50Ω series resistor) is required between amplifier output and capacitance to maintain stability. Figure 15 in the SNOSA44C datasheet shows stability boundary vs. capacitive load, and application note section "Capacitive Load" explicitly states that stability is restored at >330nF due to dominant-pole formation - but 10nF falls in the unstable region without isolation.
What is the input offset voltage specification for the LM6584MT/NOPB over temperature?
The LM6584MT/NOPB has a maximum input offset voltage of 6mV at TA = 25°C and ±85°C, with typical drift of 5μV/°C (13V supply) or 10μV/°C (5V supply). The 5V DC Electrical Characteristics table specifies VOS = 0.7–6mV min–max across −40°C to +85°C, and Figure 21 shows VOS vs. common-mode voltage exhibits a crossover near V+ − 1V due to dual-input-stage architecture. These values are measured per amplifier, not averaged across the quad package.
Is the LM6584MT/NOPB pin-compatible with other TI quad op-amps like the LM324 or TLV2464?
No, the LM6584MT/NOPB is not pin-compatible with LM324 or TLV2464. Its pinout follows a unique 14-pin SOIC arrangement: outputs on pins 1/4/8/11, inverting inputs on 2/5/9/12, non-inverting inputs on 3/6/10/13, V+ on pin 7, and V− on pin 14. In contrast, LM324 uses pins 1/7/8/14 for outputs and shares V+ (pin 4) and V− (pin 11); TLV2464 places outputs on 1/7/8/14 with different input assignments. Direct replacement would require PCB redesign. The LM6584MT/NOPB pinout is identical only to its variants (e.g., LM6584M/NOPB) and functionally matched TI parts like LM6582.
LM6584MT/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Active
- 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-TSSOP
LM6584MT/NOPB FAQ
1.How can I place an order for LM6584MT/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM6584MT/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 LM6584MT/NOPB reliable?
The price and inventory of LM6584MT/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM6584MT/NOPB is usually 5 days.
3.What payment methods are accepted for LM6584MT/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM6584MT/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM6584MT/NOPB?
LM6584MT/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM6584MT/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 LM6584MT/NOPB?
For technical support, including LM6584MT/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM6584MT/NOPB requirements.
6.How does Aetrix verify that LM6584MT/NOPB is sourced from the original manufacturer or authorized distributors?
All LM6584MT/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 LM6584MT/NOPB meets industry standards.
7.What is the process for return or replacement of LM6584MT/NOPB?
All LM6584MT/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM6584MT/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 LM6584MT/NOPB part is unused and in its original packaging.
Return procedure for LM6584MT/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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