My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX9650AZK+
- Part No.:
- MAX9650AZK+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Video Amps and Modules
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MAX9650AZK+.pdf
- Description:
- IC POWER MANAGEMENT
- Quantity:
- Payment:
- Shipping:
Inventory:4,952
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX9650AZK+ from Maxim Integrated is a single-channel rail-to-rail input/output operational amplifier optimized as a high-current VCOM driver for TFT-LCD panels. 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 and full HD television timing stability.
For engineers reviewing the MAX9650AZK+ datasheet, MAX9650AZK+ pinout, MAX9650AZK+ application, or MAX9650AZK+ equivalent, key selection criteria include peak current capability under capacitive load, thermal shutdown behavior at +170°C with 15°C hysteresis, quiescent current per channel (3.7–8mA), and SOT23-5 package suitability for space-constrained LCD timing modules.
Technical Context
The MAX9650AZK+ implements a BiCMOS-based op-amp architecture with internal protection diodes on inputs and short-circuit/thermal shutdown circuitry. Its output stage is designed for fast sourcing and sinking into large capacitive loads (up to 150nF), enabling stable VCOM voltage hold during rapid LCD panel transitions.
It operates from a single 6V–20V supply, supports rail-to-rail input common-mode range (0.5V to VDD–0.5V), and achieves 80dB CMRR and 95dB PSRR - critical for rejecting power-supply noise in high-resolution display backplane biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Output Current | ±1.3A - enables fast charging/discharging of large TFT-LCD VCOM capacitance (e.g., >100nF) without droop or overshoot |
| Slew Rate | 40V/µs - ensures sub-2µs settling to 0.1% for 1A load steps, meeting 120Hz refresh timing budgets |
| Bandwidth | 35MHz (-3dB) - maintains gain flatness across video-frequency harmonics up to full HD resolution |
| Supply Voltage Range | 6V to 20V - compatible with standard LCD panel supplies including 12V, 15V, and 19V rails |
| Quiescent Current | 3.7–8mA per channel - balances low-power standby with high-drive readiness in always-on display systems |
| Input Offset Voltage | ±14mV (max at +25°C), ±17mV (over –40°C to +125°C) - minimizes DC VCOM drift affecting grayscale uniformity |
| Thermal Shutdown | +170°C activation with 15°C hysteresis - protects against sustained overload while allowing recovery during low-duty-cycle LCD operation |
Pinout & Package
The MAX9650AZK+ is housed in a 5-pin SOT23 package with exposed pad not present (unlike µMAX-EP/TDFN-EP variants); thermal performance relies on PCB copper area under the body. Pin 1 is OUTA, Pin 2 is INA−, Pin 3 is INA+, Pin 4 is GND, Pin 5 is VDD.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | VCOM output driver | High-current rail-to-rail output node; connects directly to LCD panel VCOM electrode |
| 2 (INA−) | Inverting input | Accepts feedback from VCOM node or reference divider; protected by back-to-back diodes |
| 3 (INA+) | Noninverting input | Receives precision VREF or DAC output; 100MΩ input resistance minimizes loading |
| 4 (GND) | Analog ground reference | Primary return path for output current and bias currents; must be low-impedance plane |
| 5 (VDD) | Positive supply input | Requires local 10µF + 0.1µF bypassing; supports 6V–20V single supply operation |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full-swing VCOM bias generation from 0V to VDD, maximizing contrast ratio in wide-voltage LCDs |
| Output short-circuit protection | Prevents latch-up or damage during panel fault conditions such as cracked glass or ESD-induced leakage |
| Exposed-pad-free SOT23 | Reduces BOM count vs. EP packages while maintaining 146.4°C/W θJA (4-layer board) for moderate-power use cases |
| 150nF max load capacitance | Supports direct drive of large-area or high-resolution TFT panels without external isolation resistors in most configurations |
| Low input bias current (0.01–1µA) | Maintains accuracy when driven by high-impedance DACs or resistor dividers in closed-loop VCOM regulation |
Applications
| Large-Format TFT-LCD Panels | Industrial HMI Display Modules |
|---|---|
|
Use Scenario: Driving VCOM backplane in 24-inch+ commercial displays with 120Hz refresh and 10-bit grayscale. IC Role / Device Role / Timing Role: High-current op-amp providing stable common-mode voltage reference for column drivers during rapid pixel updates. Use Value: 40V/µs slew rate and ±1.3A peak current prevent VCOM droop during 1A transient loads, preserving image uniformity and eliminating vertical banding. |
Use Scenario: VCOM regulation in sealed industrial HMIs operating continuously at 60°C ambient temperature. IC Role / Device Role / Timing Role: Precision analog buffer with thermal shutdown, holding VCOM within ±5mV over temperature and life. Use Value: +170°C thermal shutdown with 15°C hysteresis prevents catastrophic failure during extended high-brightness operation while enabling automatic recovery. |
| Medical Diagnostic Monitors | Avionics Cabin Displays |
|
Use Scenario: Biasing high-reliability TFT panels in ultrasound and MRI viewing stations requiring zero image artifacts. IC Role / Device Role / Timing Role: Low-noise, low-drift VCOM amplifier with <±17mV offset over –40°C to +125°C. Use Value: 80dB CMRR and 95dB PSRR suppress switching noise from adjacent DC/DC converters, preventing luminance flicker in diagnostic imaging. |
Use Scenario: VCOM drive in certified avionics displays subjected to DO-160E lightning-induced transient stress. IC Role / Device Role / Timing Role: Robust analog output stage with internal input protection diodes and short-circuit limiting. Use Value: Input protection (±20mA absolute max) and output current limiting enable survival of induced transients without external TVS components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar VCOM amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9650AUA+ | 8-pin µMAX-EP package with exposed pad; lower θJA = 77.6°C/W (4-layer board); same electrical specs | Better thermal performance required for continuous 1A output in compact enclosures | Select MAX9650AUA+ when PCB layout allows EP grounding and thermal dissipation exceeds SOT23 limits |
| MAX9650ATA+ | 8-pin TDFN-EP package; lowest θJA = 41°C/W (4-layer board); ±350mA continuous output rating | Higher continuous current capability and superior heat spreading for high-duty-cycle VCOM control | Choose MAX9650ATA+ for designs needing sustained >200mA VCOM current or operating above 85°C ambient |
Compared with MAX9650AZK+, the MAX9650AUA+ offers improved thermal management in the same functional footprint, while the MAX9650ATA+ provides higher continuous current and lower thermal resistance - both retain identical AC performance but differ in package-driven thermal and layout constraints.
Availability
MAX9650AZK+ is available at Aetrix Electronics and suitable for large-format TFT-LCD panels, industrial HMI display modules, and medical diagnostic monitors requiring stable component supply and long-term manufacturability.
Supply support for MAX9650AZK+ 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 communications applications.
The MAX9650 series belongs to Maxim's high-current precision amplifier product line, engineered specifically for TFT-LCD VCOM biasing where fast transient response, rail-to-rail operation, and robust thermal protection are mandatory.
FAQ
What is the maximum continuous output current specification for the MAX9650AZK+?
The MAX9650AZK+ is rated for 20mA continuous output current per channel under test conditions (VOUT = 9.5V). This reflects its SOT23-5 thermal limitations - unlike the µMAX-EP and TDFN-EP variants, it is optimized for peak-current delivery rather than sustained high-current operation. Designers should verify junction temperature rise using θJA = 146.4°C/W in their specific layout.
Does the MAX9650AZK+ require external series resistance for stability with capacitive loads?
Yes - the MAX9650AZK+ benefits from a small series resistor (e.g., 2.2Ω) between OUTA and the LCD VCOM node to ensure stability with large capacitive loads (>100nF). Figure 2 in the datasheet defines minimum combined ESR/trace resistance versus load capacitance; omitting this resistor may cause ringing or overshoot in high-resolution panels.
How does thermal shutdown behave in the MAX9650AZK+ during typical TFT-LCD operation?
The MAX9650AZK+ activates thermal shutdown at +170°C junction temperature and re-enables after cooling by 15°C. In normal TFT-LCD use, duty cycle is low and average power dissipation remains well below thermal limits - shutdown occurs only during sustained overload or poor PCB thermal design, not during standard 120Hz frame updates.
Can the MAX9650AZK+ operate from dual supplies?
No - the MAX9650AZK+ is specified for single-supply operation from 6V to 20V. While the MAX9650 family supports ±4.5V to ±10V dual supplies in other package variants, the SOT23-5 pinout lacks dedicated negative supply pins. Dual-supply use would require redesigning the reference architecture and is not validated for MAX9650AZK+.
What is the input common-mode voltage range for the MAX9650AZK+?
The MAX9650AZK+ supports a rail-to-rail input common-mode range of 0.5V to VDD – 0.5V, inferred from CMRR testing. This allows direct interfacing with DAC outputs or resistor-divider references spanning near-ground to near-VDD levels, essential for flexible VCOM setpoint programming in multi-voltage display systems.
MAX9650AZK+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Series:
- -
- Packaging:
- Tube
- 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:
- TSOT-23-5
MAX9650AZK+ FAQ
1.How can I place an order for MAX9650AZK+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9650AZK+ 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 MAX9650AZK+ reliable?
The price and inventory of MAX9650AZK+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9650AZK+ is usually 5 days.
3.What payment methods are accepted for MAX9650AZK+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9650AZK+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9650AZK+?
MAX9650AZK+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9650AZK+ 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 MAX9650AZK+?
For technical support, including MAX9650AZK+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9650AZK+ requirements.
6.How does Aetrix verify that MAX9650AZK+ is sourced from the original manufacturer or authorized distributors?
All MAX9650AZK+ 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 MAX9650AZK+ meets industry standards.
7.What is the process for return or replacement of MAX9650AZK+?
All MAX9650AZK+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX9650AZK+, 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 MAX9650AZK+ part is unused and in its original packaging.
Return procedure for MAX9650AZK+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX9650AZK+ Tags
-
LT6552CS8#PBF
Analog Devices Inc.
-
LT6205IS5#TRPBF
Analog Devices Inc.
-
LT6206IMS8#TRPBF
Analog Devices Inc.
-
LT6552CDD#PBF
Analog Devices Inc.
-
LT6552IS8#PBF
Analog Devices Inc.
-
LT1252CS8#PBF
Analog Devices Inc.
-
AD818ARZ-REEL7
Analog Devices Inc.
-
MAX4310EUA+
Analog Devices Inc./Maxim Integrated
-
AD829ARZ
Analog Devices Inc.
-
AD810ARZ
Analog Devices Inc.
-
MAX4310ESA+
Analog Devices Inc./Maxim Integrated
-
MAX4313ESA+
Analog Devices Inc./Maxim Integrated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
