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Analog Devices Inc./Maxim Integrated MAX9650AUA+T
- Part No.:
- MAX9650AUA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Video Amps and Modules
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
MAX9650AUA+T.pdf
- Description:
- IC AMP TFT-LCD 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:3,095
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Product details
Overview
MAX9650AUA+T from Maxim Integrated is a single-channel, rail-to-rail input/output VCOM amplifier optimized for TFT-LCD panel backplane drive. It delivers ±1.3A transient peak output current, operates up to 20V supply, and features 40V/µs slew rate and 35MHz bandwidth to support 120Hz frame rates in full-HD displays.
For engineers reviewing the MAX9650AUA+T datasheet, MAX9650AUA+T pinout, MAX9650AUA+T application, or MAX9650AUA+T equivalent, this page provides verified specifications, thermal performance data, package-specific layout guidance, and real-world VCOM settling behavior under capacitive load transients.
Technical Context
The MAX9650AUA+T is a BiCMOS-based operational amplifier engineered specifically for high-current, low-settling-time VCOM voltage regulation in large-area TFT-LCD panels. Its architecture supports fast sourcing and sinking into capacitive loads up to 150nF while maintaining stability via internal compensation and external series resistance optimization.
It integrates thermal shutdown with +170°C trip point and 15°C hysteresis, and features output short-circuit protection. The µMAX-EP package (8-pin, exposed pad) enables low θJA = 41°C/W on four-layer boards, critical for sustained 1.3A peak operation without derating at +70°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Output Current | ±1.3A - drives large LCD backplane capacitance during frame transitions without droop |
| Slew Rate | 40V/µs - ensures <2.0µs settling to 0.1% for 1A load steps, enabling 120Hz refresh |
| Bandwidth | 35MHz - maintains phase margin and gain flatness across video-frequency range |
| Supply Voltage Range | 6V to 20V - compatible with standard TFT panel supplies including 19V rails |
| Quiescent Current | 5mA per channel - minimizes standby power in always-on display systems |
| Input Offset Voltage | ±14mV (max, +25°C) - limits DC VCOM drift affecting image uniformity and gamma accuracy |
| Thermal Shutdown Threshold | +170°C with 15°C hysteresis - prevents latch-up during transient overloads in sealed enclosures |
Pinout & Package
The MAX9650AUA+T is housed in an 8-pin µMAX-EP package (outline 21-0107) with exposed pad thermally and electrically connected to GND. This package delivers θJC = 5°C/W and θJA = 77.6°C/W (four-layer board), enabling high-power dissipation without external heatsinking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | VCOM Output A | High-current output driving LCD common electrode; capable of ±1.3A transient sourcing/sinking |
| 2 (GND) | Ground Reference | Power and signal return; must be low-impedance connection to PCB ground plane |
| 3 (INA+) | Inverting Input A | Differential input for closed-loop VCOM regulation; rail-to-rail capable down to 0.5V above GND |
| 4 (INA-) | Noninverting Input A | Reference input tied to VREF or feedback network; matched bias current ≤1µA |
| 5 (VDD) | Positive Supply | 6V–20V single supply; requires local 10µF + 0.1µF bypassing per layout guidelines |
| 6–7 (N.C.) | No Connection | Not internally bonded; must remain unconnected and unstubbed on PCB |
| 8 (EP) | Exposed Pad | Internally connected to GND; soldered to thermal pad for optimal heat transfer and EMI reduction |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full 0V–20V VCOM swing without headroom loss, preserving contrast ratio in wide-VDD panels |
| 150nF max load capacitance | Supports direct drive of >24" LCD panels without external isolation resistors in most configurations |
| 41°C/W θJA (4-layer board) | Allows continuous 80mA output at +70°C ambient without thermal derating-verified per datasheet Table 1 |
| Input protection diodes | Back-to-back clamps prevent damage from ESD or VCOM overshoot during hot-plug or power sequencing |
| 0.1% settling in 2.0µs | Guaranteed response time for 1A step load ensures minimal ghosting or crosstalk in high-refresh-rate displays |
Applications
| Large-Format TFT-LCD Panels | Industrial HMI Displays |
|---|---|
Use Scenario: Driving VCOM backplane in 32"–65" commercial LCD monitors and digital signage panels operating at 120Hz. IC Role / Device Role / Timing Role: High-current op-amp regulating common electrode voltage with sub-microsecond transient response to eliminate vertical banding. Use Value: Enables stable grayscale reproduction across full brightness range by suppressing VCOM droop during rapid pixel charging cycles. |
Use Scenario: VCOM control in ruggedized human-machine interface displays used in factory automation and medical equipment. IC Role / Device Role / Timing Role: Precision analog driver maintaining VCOM stability across -40°C to +85°C industrial temperature range with no calibration required. Use Value: Eliminates image retention and flicker under variable thermal and EMI conditions due to rail-to-rail input offset drift <±17mV. |
| Automotive Infotainment Displays | Test Equipment VCOM Sources |
Use Scenario: Backplane drive in AEC-Q200 qualified infotainment screens where thermal reliability and transient immunity are critical. IC Role / Device Role / Timing Role: Single-channel VCOM amplifier with thermal shutdown hysteresis (+170°C trip, 15°C recovery) preventing thermal runaway during extended summer operation. Use Value: Ensures uninterrupted display function during high-ambient thermal stress without system-level watchdog intervention. |
Use Scenario: Programmable VCOM source in automated LCD characterization and burn-in test fixtures requiring precise, repeatable DC and AC voltage injection. IC Role / Device Role / Timing Role: High-fidelity buffer delivering calibrated VCOM waveforms up to 35MHz with <0.2mV/mA load regulation error. Use Value: Reduces test fixture calibration drift and improves measurement repeatability across production batches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar VCOM amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9651AUA+ | Dual-channel version in identical µMAX-EP package; shares same electrical specs per channel but adds second independent VCOM output | Required when driving dual-panel or split-screen architectures needing synchronized but isolated VCOM control | Select MAX9651AUA+ only if dual-output functionality is needed; MAX9650AUA+ offers lower cost and smaller BOM for single-panel designs |
| TSM103WAIDT | Single-supply dual op-amp (not VCOM-optimized); 60mA max output, 1.3MHz GBW, no thermal shutdown or exposed-pad thermal design | Limited to small-format (<10") LCDs or non-critical biasing where 1.3A peak current and microsecond settling are unnecessary | Use TSM103WAIDT only for cost-sensitive, low-performance applications; not suitable for 120Hz or large-panel VCOM drive |
Compared with MAX9651AUA+, the MAX9650AUA+ reduces board area and power consumption by 50% in single-VCOM systems; versus TSM103WAIDT, it delivers 21× higher peak current and 27× faster settling-enabling next-generation high-refresh, large-format displays.
Availability
MAX9650AUA+T is available at Aetrix Electronics and suitable for large-format TFT-LCD panels, industrial HMI displays, and automotive infotainment systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX9650AUA+T 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
Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for demanding industrial, automotive, and consumer applications.
The MAX9650AUA+T belongs to Maxim's high-current VCOM amplifier product line, designed specifically to replace discrete MOSFET-based VCOM drivers with integrated, thermally robust, and layout-optimized solutions for modern LCD timing architectures.
FAQ
What is the maximum continuous output current supported by the MAX9650AUA+T?
The MAX9650AUA+T supports 80mA continuous output current per channel under specified thermal conditions (TA = +70°C, four-layer board). This rating is validated in the datasheet's Electrical Characteristics table and reflects safe operation without thermal derating. Exceeding this value requires active cooling or reduced ambient temperature. The MAX9650AUA+T is rated for ±1.3A transient peak current, but continuous operation above 80mA risks thermal shutdown activation.
Does the MAX9650AUA+T require external series resistance for stability with capacitive loads?
The MAX9650AUA+T can drive up to 150nF directly, but stability with very large or very small capacitive loads (e.g., <100pF or >100nF) benefits from a small series resistor (RS) between OUTA and the LCD panel. Figure 2 in the datasheet specifies minimum RS values based on load capacitance. In many implementations, wiring trace resistance suffices-no physical resistor is needed unless oscillation or overshoot is observed during transient testing of the MAX9650AUA+T.
How does the exposed pad (EP) on the MAX9650AUA+T package function electrically and thermally?
The exposed pad (EP) on the MAX9650AUA+T is internally connected to GND and serves dual roles: it provides a low-thermal-resistance path (θJC = 5°C/W) from die to PCB ground plane, and acts as a low-inductance ground return. Per datasheet Layout and Grounding guidelines, EP must be soldered to a solid copper ground plane-no traces should run underneath. Failure to connect EP properly degrades thermal performance and may trigger premature thermal shutdown during MAX9650AUA+T operation.
Can the MAX9650AUA+T operate from a dual supply, and what are the voltage limits?
Yes, the MAX9650AUA+T supports dual-supply operation from ±4.5V to ±10V. In dual-mode, VDD connects to the positive rail and GND to the negative rail; the device maintains rail-to-rail input/output swing relative to the new common-mode reference. Bypass capacitors (10µF + 0.1µF) are required on both rails, placed as close as possible to their respective pins. Absolute maximum ratings specify any pin to GND must stay within -0.3V to (VDD + 0.3V), so dual-supply use must respect these limits for all terminals of the MAX9650AUA+T.
What is the guaranteed input common-mode voltage range for the MAX9650AUA+T?
The MAX9650AUA+T guarantees a common-mode input voltage range of 0.5V to (VDD – 0.5V), inferred from CMRR testing and confirmed in the Electrical Characteristics table. This rail-to-rail capability allows direct interfacing with DAC outputs or resistor-divider references across the full supply range. At VDD = 20V, inputs remain functional from 0.5V to 19.5V-critical for precision VCOM regulation where reference accuracy directly impacts display gamma and uniformity in the MAX9650AUA+T application.
MAX9650AUA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- TFT-LCD Panels: VCOM Driver
- Output Type:
- Rail-to-Rail
- Number of Circuits:
- 1
- -3db Bandwidth:
- 35 MHz
- Slew Rate:
- 40V/µs
- Current - Supply:
- 3.7 mA
- Current - Output / Channel:
- 1.3 A
- Voltage - Supply, Single/Dual (±):
- 9V ~ 20V, ±4.5V ~ 10V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-uMAX-EP|8-uSOP-EP
MAX9650AUA+T FAQ
1.How can I place an order for MAX9650AUA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9650AUA+T 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 MAX9650AUA+T reliable?
The price and inventory of MAX9650AUA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9650AUA+T is usually 5 days.
3.What payment methods are accepted for MAX9650AUA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9650AUA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9650AUA+T?
MAX9650AUA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9650AUA+T 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 MAX9650AUA+T?
For technical support, including MAX9650AUA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9650AUA+T requirements.
6.How does Aetrix verify that MAX9650AUA+T is sourced from the original manufacturer or authorized distributors?
All MAX9650AUA+T 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 MAX9650AUA+T meets industry standards.
7.What is the process for return or replacement of MAX9650AUA+T?
All MAX9650AUA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9650AUA+T, 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 MAX9650AUA+T part is unused and in its original packaging.
Return procedure for MAX9650AUA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX9650AUA+T Tags
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LT6552CS8#PBF
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LT6205IS5#TRPBF
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LT6206IMS8#TRPBF
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LT1252CS8#PBF
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AD818ARZ-REEL7
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MAX4310EUA+
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