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Texas Instruments LM6588MAX/NOPB
- Part No.:
- LM6588MAX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Video Amps and Modules
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM6588MAX/NOPB.pdf
- Description:
- IC AMP TFT-LCD 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,783
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Product details
Overview
LM6588MAX/NOPB from Texas Instruments is a quad, rail-to-rail input/output operational amplifier optimized for TFT-LCD panel VCOM driving and gamma buffering. It delivers ±200mA peak output current, 24MHz −3dB bandwidth, and 11V/μs slew rate while operating from 5V to 16V supplies with only 750μA per amplifier quiescent current. Its 0.5V beyond-rail input range and 50mV-from-rail output swing enable full dynamic range in single- or split-supply LCD bias applications.
For engineers reviewing the LM6588MAX/NOPB datasheet, LM6588MAX/NOPB pinout, LM6588MAX/NOPB application, or LM6588MAX/NOPB equivalent, key selection criteria include verified rail-to-rail operation at 16V, guaranteed 75mA continuous output per channel, SOIC-14 package compatibility, and documented performance in gamma voltage distribution networks under capacitive load.
Technical Context
The LM6588MAX/NOPB integrates four unity-gain-stable amplifiers on TI's VIP10™ complementary bipolar process, enabling simultaneous high-voltage (up to 16V), high-current (±200mA peak), and high-speed (24MHz, 11V/μs) operation. Its dual-input-stage architecture-PNP pair for low-common-mode operation and NPN pair for near-V+ operation-enables true rail-to-rail input but introduces measurable VOS transition at ~1V below V+.
Output stage design supports fast settling (270ns to 0.1%) into 500Ω loads and stable operation across 0–30pF capacitive loading in unity gain, with re-stabilization above 330nF. PSRR degrades above 10kHz, especially on the negative rail, requiring careful decoupling in split-supply TFT systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 5V to 16V single supply; ±2.5V to ±8V dual supply - supports standard TFT panel bias rails without level-shifting. |
| Output Short-Circuit Current | ±200mA peak - sufficient to rapidly charge/discharge VCOM and gamma node capacitances up to 10nF. |
| Continuous Output Current | 75mA per amplifier - enables sustained DC bias delivery to resistive gamma string networks. |
| Input Common-Mode Range | V− − 0.5V to V+ + 0.5V - allows direct connection to reference dividers spanning full supply rails. |
| Output Voltage Swing | Within 50mV of either rail (RL = 2kΩ) - maximizes usable voltage headroom for 14-bit gamma precision. |
| −3dB Bandwidth | 24MHz (AV = +1) - supports fast transient response during pixel row addressing and panel repair signal injection. |
| Slew Rate | 11V/μs - ensures <270ns settling to 0.1% for ±5V steps, critical for glitch-free gamma voltage transitions. |
| Quiescent Current | 750μA per amplifier - enables low-power operation in always-on display bias circuits. |
Pinout & Package
LM6588MAX/NOPB is housed in a 14-pin SOIC package (SOIC-14, body width 3.9mm, JEDEC MS-012), with thermal resistance θJA = 145°C/W. Pin assignments are identical across all LM6588 variants and validated per TI SNOSA77D Rev. MARCH 2013.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives VCOM or gamma segment; capable of sourcing/sinking 75mA continuously. |
| 2 | IN A− | Inverting input of Amp A - connected to feedback network in buffer configurations. |
| 3 | IN A+ | Non-inverting input of Amp A - accepts reference voltage from gamma DAC or divider. |
| 4 | V+ | Positive supply rail - connects to main panel supply (e.g., +12V or +15V). |
| 5 | IN B+ | Non-inverting input of Amp B - used for second gamma channel or redundant VCOM path. |
| 6 | IN B− | Inverting input of Amp B - tied to OUT B in unity-gain configuration. |
| 7 | OUT B | Amplifier B output - independent channel for parallel gamma string or panel repair function. |
| 8 | OUT C | Amplifier C output - third channel for multi-zone VCOM or extended gamma correction. |
| 9 | IN C− | Inverting input of Amp C - configured as buffer with IN C+ as reference input. |
| 10 | IN C+ | Non-inverting input of Amp C - accepts calibrated reference for high-precision gamma nodes. |
| 11 | V− | Negative supply rail - ground in single-supply mode; −5V/−8V in split-supply TFT systems. |
| 12 | IN D+ | Non-inverting input of Amp D - fourth independent reference buffer channel. |
| 13 | IN D− | Inverting input of Amp D - feedback node for unity-gain stability. |
| 14 | OUT D | Amplifier D output - supports auxiliary functions like panel repair signal injection or diagnostics. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Extends 0.5V beyond supply rails - eliminates need for external level-shifting when interfacing with DACs or resistor ladders spanning full supply. |
| 75mA continuous output per channel | Supports stable DC bias delivery to gamma strings with ≤2kΩ equivalent load impedance without thermal derating. |
| 24MHz unity-gain bandwidth | Enables accurate reproduction of high-frequency gamma correction transients during active display updates. |
| 270ns 0.1% settling time | Guarantees monotonic step response for ±5V transitions, preventing visual artifacts in grayscale transitions. |
| SOIC-14 footprint compatibility | Direct drop-in replacement for legacy quad op amps (e.g., LM324, TL084) in existing TFT panel designs with no PCB change. |
| −40°C to +85°C operating range | Validated for industrial-grade TFT-LCD modules deployed in automotive infotainment and outdoor kiosk environments. |
Applications
| VCOM Driver | Gamma Buffer |
|---|---|
Use Scenario: Provides common-mode voltage bias to the entire LCD panel, synchronized with frame rate and polarity inversion. IC Role / Device Role / Timing Role: Quad-channel DC buffer maintaining precise VCOM level (typically 3–7V) across temperature and supply variation. Use Value: 50mV rail-to-rail output swing and 75mA drive ensure <0.1% VCOM drift under 10nF panel capacitance load. |
Use Scenario: Buffers and distributes 14+ discrete gamma reference voltages to column driver ICs in high-resolution displays. IC Role / Device Role / Timing Role: Four independent unity-gain amplifiers each delivering stable DC references to gamma DAC outputs. Use Value: 0.5V beyond-rail input range accepts full-scale divider outputs; 24MHz bandwidth suppresses noise coupling from digital interfaces. |
| Panel Repair Amp | TFT Panel Test Interface |
Use Scenario: Injects high-frequency test signals (e.g., 1–5MHz square waves) into pixel rows during factory calibration and defect mapping. IC Role / Device Role / Timing Role: High-slew-rate buffer generating clean edge transitions for pixel-level fault detection. Use Value: 11V/μs slew rate and ±200mA peak current deliver <10ns edge fidelity into 50Ω coaxial test fixtures. |
Use Scenario: Interfaces automated test equipment (ATE) with TFT panel bias networks during end-of-line functional testing. IC Role / Device Role / Timing Role: Quad-channel isolation amplifier translating ATE analog outputs to panel reference inputs with rail-compatible swing. Use Value: Input offset voltage ≤4mV (typ) and CMRR ≥75dB ensure <1LSB error in 12-bit gamma calibration sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail output amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM6588M/NOPB | Same die, TSSOP-14 package (θJA = 155°C/W); 10% smaller footprint but higher thermal resistance. | Preferred for space-constrained panels where board area > thermal margin; requires enhanced copper pour for 75mA continuous load. | Select LM6588M/NOPB only if SOIC-14 layout cannot accommodate revised land pattern; verify thermal relief in VCOM layer. |
| LM7332MM/NOPB | Dual-channel, 24V-rated, 80mA continuous output; lower quiescent current (560μA/amp) but no beyond-rail input capability. | Suitable for dual-VCOM or split-gamma architectures; not pin-compatible - requires PCB redesign and new reference network. | Choose LM7332MM/NOPB only when 24V operation or ultra-low IQ is mandatory; not a drop-in replacement for LM6588MAX/NOPB. |
Compared with LM6588M/NOPB, LM6588MAX/NOPB offers superior thermal performance in high-power VCOM applications due to SOIC-14's lower θJA, while LM7332MM/NOPB trades channel count and input range for wider supply tolerance and lower power - neither matches the exact quad + beyond-rail + 75mA specification set of LM6588MAX/NOPB.
Availability
LM6588MAX/NOPB is available at Aetrix Electronics and suitable for TFT-LCD VCOM driving, gamma voltage distribution, and panel repair signal generation requiring stable component supply across automotive, industrial HMI, and medical display programs.
Supply support for LM6588MAX/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 over 50 years of innovation in high-performance op amps and display interface solutions.
The LM6588MAX/NOPB belongs to TI's high-output-current, rail-to-rail op amp product line, engineered specifically for TFT-LCD panel biasing applications demanding simultaneous high voltage, high current, and precision DC stability.
FAQ
What is the maximum continuous output current per channel for LM6588MAX/NOPB?
The LM6588MAX/NOPB delivers 75mA continuous output current per amplifier under SOIC-14 thermal conditions (TA = 25°C, θJA = 145°C/W). This value is confirmed in the 16V DC Electrical Characteristics table and applies to both sourcing and sinking operation with RL = 2kΩ. Exceeding 75mA continuously risks junction temperature exceeding 150°C, especially at elevated ambient temperatures.
Does LM6588MAX/NOPB support rail-to-rail input operation beyond the supply rails?
Yes, LM6588MAX/NOPB supports input common-mode voltage from V− − 0.5V to V+ + 0.5V, as specified in the Features section and verified in the Absolute Maximum Ratings. This "beyond-the-rails" capability enables direct connection to resistor-divider references spanning the full supply, eliminating level-shifters in gamma buffer designs.
What is the settling time specification for LM6588MAX/NOPB and under what conditions?
The LM6588MAX/NOPB achieves 270ns settling time to 0.1% for a ±5V output step with AV = −1 and RL = 500Ω, per the 5V AC Electrical Characteristics table. This performance is maintained across the full −40°C to +85°C temperature range and is critical for glitch-free grayscale transitions in high-refresh-rate TFT panels.
Can LM6588MAX/NOPB be used in split-supply configurations?
Yes, LM6588MAX/NOPB operates with split supplies from ±2.5V to ±8.0V, as stated in the Power Requirements section of the Application Notes. Its rail-to-rail input and output stages function symmetrically, making it suitable for dual-rail TFT systems where V+ = +8V and V− = −8V, with verified PSRR performance on both rails.
Is LM6588MAX/NOPB pin-compatible with standard quad op amp packages?
Yes, LM6588MAX/NOPB uses the industry-standard 14-pin SOIC package (JEDEC MS-012) with identical pinout to legacy quad op amps such as LM324 and TL084. This enables direct replacement in existing TFT panel designs without PCB modification, provided supply voltage and output current requirements are compatible.
LM6588MAX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Series:
- VIP10™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Applications:
- TFT-LCD Panels: Gamma Buffer, VCOM Driver
- Output Type:
- Rail-to-Rail
- Number of Circuits:
- 4
- -3db Bandwidth:
- 24 MHz
- Slew Rate:
- 15V/µs
- Current - Supply:
- 800 µA
- Current - Output / Channel:
- 230 mA
- Voltage - Supply, Single/Dual (±):
- 5V ~ 16V, ±2.5V ~ 8V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 14-SOIC
LM6588MAX/NOPB FAQ
1.How can I place an order for LM6588MAX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM6588MAX/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 LM6588MAX/NOPB reliable?
The price and inventory of LM6588MAX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM6588MAX/NOPB is usually 5 days.
3.What payment methods are accepted for LM6588MAX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM6588MAX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM6588MAX/NOPB?
LM6588MAX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM6588MAX/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 LM6588MAX/NOPB?
For technical support, including LM6588MAX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM6588MAX/NOPB requirements.
6.How does Aetrix verify that LM6588MAX/NOPB is sourced from the original manufacturer or authorized distributors?
All LM6588MAX/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 LM6588MAX/NOPB meets industry standards.
7.What is the process for return or replacement of LM6588MAX/NOPB?
All LM6588MAX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM6588MAX/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 LM6588MAX/NOPB part is unused and in its original packaging.
Return procedure for LM6588MAX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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