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Analog Devices Inc. ADD8506WWARUZR7
- Part No.:
- ADD8506WWARUZR7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Video Amps and Modules
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADD8506WWARUZR7.pdf
- Description:
- IC AMP TFT-LCD 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,502
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Product details
Overview
ADD8506WWARUZR7 from Analog Devices is a 6-channel, muxed-input LCD gamma reference buffer designed for line inversion panels in automotive displays. It features rail-to-rail input/output, 380 mA output current per channel, −40°C to +105°C operating range, and A/B input selection for dual gamma curve switching - deployed in car navigation and infotainment systems.
For engineers reviewing the ADD8506WWARUZR7 datasheet, ADD8506WWARUZR7 pinout, ADD8506WWARUZR7 application, or ADD8506WWARUZR7 equivalent, key selection criteria include its 6-channel gamma buffer function, TSSOP-24 automotive-grade packaging, 3.3 V to 6.5 V single-supply operation, and high-output-current capability for driving column driver resistor ladders.
Technical Context
The ADD8506WWARUZR7 implements six independent CMOS buffer channels, each with dual analog inputs (INAx/INBx) selected by a single logic-controlled A/B terminal. Its architecture supports fast settling (≤6 μs) and high slew rate (7.0 V/μs), enabling stable gamma voltage delivery under dynamic load conditions typical of active-matrix LCD column drivers.
All six outputs deliver ≥120 mA short-circuit current and maintain rail-to-rail swing across 3.3 V–6.5 V supply, with offset voltage ≤20 mV and input bias current ≤50 nA. Power supply pins (VCC1/VCC2/VCC3) and ground terminals (GND ×2) are segregated to minimize noise coupling during high-current transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 6 independent gamma reference buffers with A/B input multiplexing per channel |
| Supply Voltage | 3.3 V to 6.5 V single supply - enables direct integration with 5 V automotive power rails |
| Output Current | 380 mA short-circuit current per channel - ensures robust drive into LCD column driver ladders |
| Temperature Range | −40°C to +105°C - qualified for under-hood and dashboard-mounted automotive display modules |
| Slew Rate | 7.0 V/μs (CL = 15 pF) - supports fast gamma voltage transitions without distortion |
| Settling Time | ≤6 μs (CL = 200 pF, RL = 10 kΩ) - maintains grayscale fidelity during frame updates |
| Input Bias Current | ≤50 nA - permits use of high-value external resistor ladders to minimize system power draw |
Pinout & Package
ADD8506WWARUZR7 is housed in a 24-lead Pb-free TSSOP package (JEDEC MO-153-AD, RU-24), with 0.65 mm pitch, 7.70 mm × 4.40 mm body, and exposed thermal pad not connected internally.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA1–INA6 | Analog Input A | Primary gamma reference input for Channels 1–6; selected when A/B = HIGH |
| INB1–INB6 | Analog Input B | Secondary gamma reference input for Channels 1–6; selected when A/B = LOW |
| OUT1–OUT6 | Analog Output | Buffered gamma reference output per channel; drives column driver ladder nodes |
| A/B | Digital Control Input | Logic-level select for INA/INB multiplexing; TTL/CMOS compatible |
| VCC1, VCC2, VCC3 | Power Supply Inputs | Three dedicated 5 V supply pins - must be shorted externally and bypassed locally |
| GND (Pins 17, 18) | Ground Terminals | Two isolated ground connections - reduce ground bounce during multi-channel switching |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full-scale gamma voltage delivery across entire 0 V–VCC range without headroom loss |
| High output current (380 mA) | Drives low-impedance LCD column driver inputs while maintaining voltage accuracy |
| Low input bias current (≤50 nA) | Allows >1 MΩ external resistor ladders, reducing quiescent current in gamma networks |
| Stable with 1 nF loads | Eliminates need for series output resistors - preserves signal integrity into capacitive panel traces |
| Automotive qualification | Controlled manufacturing, AEC-Q100 stress testing, and reliability reporting per ADI automotive program |
Applications
| Car Navigation Panels | Automotive Infotainment Systems |
|---|---|
|
Use Scenario: High-resolution TFT-LCD panels in vehicle navigation units requiring precise grayscale reproduction under wide temperature and lighting conditions. IC Role / Device Role / Timing Role: Gamma reference buffer delivering stable, muxed positive/negative inversion voltages to column driver ICs. Use Value: Ensures consistent color fidelity and contrast ratio across −40°C to +105°C ambient, critical for daylight-readable maps. |
Use Scenario: Central display units integrating media, climate, and vehicle settings with multi-zone gamma correction. IC Role / Device Role / Timing Role: 6-channel analog mux buffer synchronizing gamma voltage switching with frame refresh timing. Use Value: Supports simultaneous dual-gamma curve selection per channel, enabling adaptive brightness compensation across display zones. |
| Instrument Cluster Displays | Head-Up Display (HUD) Controllers |
|
Use Scenario: Digital instrument clusters using segmented or full-graphic LCDs where gamma stability affects speedometer readability and warning icon clarity. IC Role / Device Role / Timing Role: Reference voltage conditioner for column driver gamma inputs, rejecting EMI from nearby power electronics. Use Value: Low 20 mV offset and high PSRR ensure minimal luminance shift during engine cranking or alternator load transients. |
Use Scenario: Compact HUD projection modules requiring compact, thermally robust gamma reference circuitry near optical engines. IC Role / Device Role / Timing Role: Space-constrained gamma buffer with minimal external components, leveraging integrated A/B logic control. Use Value: TSSOP-24 footprint and 1.2 mm max height enable placement directly behind LCD glass, minimizing trace inductance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LCD gamma buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADD8506WRUZ | Commercial-grade version; same pinout, electrical specs, and TSSOP-24 package but rated only to +85°C junction | Not qualified for automotive AEC-Q100; unsuitable for under-dash or engine bay environments | Select ADD8506WWARUZR7 for production automotive designs requiring full −40°C to +105°C operation and reliability reporting. |
| MAX9633EUB+T | 5-channel, rail-to-rail buffer with 200 mA output; no A/B mux per channel; uses 10-lead µMAX package | Lacks per-channel gamma curve selection; requires external logic for dual-voltage switching | Consider only for non-automotive, space-constrained designs needing fewer channels and lower output current. |
Compared with ADD8506WRUZ and MAX9633EUB+T, the ADD8506WWARUZR7 uniquely combines 6-channel A/B mux capability, automotive qualification, and 380 mA output drive in a single TSSOP-24 package - eliminating need for external multiplexers or parallel buffering in high-end display systems.
Availability
ADD8506WWARUZR7 is available at Aetrix Electronics and suitable for automotive infotainment systems, car navigation panels, and instrument cluster displays requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for ADD8506WWARUZR7 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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The ADD8506WWARUZR7 belongs to Analog Devices' LCD gamma reference buffer product line, engineered specifically for automotive-grade display timing and voltage fidelity in line-inversion architectures.
FAQ
What is the primary function of the ADD8506WWARUZR7 in an LCD display system?
The ADD8506WWARUZR7 serves as a 6-channel gamma reference buffer that delivers stable, muxed analog voltages to LCD column driver ICs for precise grayscale control. Its A/B input selection enables real-time switching between positive and negative gamma curves - a core requirement for line inversion panels used in automotive displays. Each channel of the ADD8506WWARUZR7 maintains rail-to-rail output swing and high current drive to ensure accurate gamma ladder biasing.
Does the ADD8506WWARUZR7 require external passive components for stable operation?
No external compensation components are required for stability: the ADD8506WWARUZR7 is specified to remain stable with capacitive loads up to 1 nF. However, local 0.1 μF ceramic bypass capacitors are mandatory on each VCC pin (VCC1/VCC2/VCC3), and all GND pins (17 and 18) must be connected to a low-impedance ground plane. Series resistors on outputs are discouraged, as they degrade settling time and grayscale accuracy in the ADD8506WWARUZR7 application.
How does the A/B control pin function in the ADD8506WWARUZR7?
The A/B pin is a single logic input that globally selects between the two analog inputs (INAx or INBx) for all six buffer channels simultaneously. When A/B is driven HIGH, all six outputs follow their respective INA1–INA6 inputs; when A/B is LOW, all outputs follow INB1–INB6. This synchronized switching enables rapid polarity inversion of gamma voltages across the entire display - essential for reducing flicker and improving visual quality in line-inversion LCDs driven by the ADD8506WWARUZR7.
Is the ADD8506WWARUZR7 pin-compatible with other members of the ADD8504/ADD8505/ADD8506 family?
No - the ADD8506WWARUZR7 uses a 24-pin TSSOP package with unique pin assignments including three VCC inputs (VCC1/VCC2/VCC3) and two GND pins, differing from the 16-pin ADD8504 and 20-pin ADD8505. While functional behavior is consistent across the family, PCB layout and power routing must be redesigned for the ADD8506WWARUZR7 due to its expanded pin count and dedicated supply/ground topology.
What automotive reliability documentation is available for the ADD8506WWARUZR7?
Analog Devices provides AEC-Q100 stress test reports, failure-in-time (FIT) data, and automotive reliability qualification summaries for the ADD8506WWARUZR7 upon request through authorized distributors or direct account representatives. These documents confirm compliance with temperature cycling, humidity bias HAST, and package assembly requirements for automotive under-hood and cabin applications - distinct from commercial-grade variants like the ADD8506WRUZ. The ADD8506WWARUZR7 is the only version approved for automotive deployment.
ADD8506WWARUZR7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- TFT-LCD Panels: Gamma Buffer
- Output Type:
- Rail-to-Rail
- Number of Circuits:
- 6
- -3db Bandwidth:
- -
- Slew Rate:
- 7V/µs
- Current - Supply:
- 3.9 mA
- Current - Output / Channel:
- 380 mA
- Voltage - Supply, Single/Dual (±):
- 3.3V ~ 6.5V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 24-TSSOP
ADD8506WWARUZR7 FAQ
1.How can I place an order for ADD8506WWARUZR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADD8506WWARUZR7 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 ADD8506WWARUZR7 reliable?
The price and inventory of ADD8506WWARUZR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADD8506WWARUZR7 is usually 5 days.
3.What payment methods are accepted for ADD8506WWARUZR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADD8506WWARUZR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADD8506WWARUZR7?
ADD8506WWARUZR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADD8506WWARUZR7 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 ADD8506WWARUZR7?
For technical support, including ADD8506WWARUZR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADD8506WWARUZR7 requirements.
6.How does Aetrix verify that ADD8506WWARUZR7 is sourced from the original manufacturer or authorized distributors?
All ADD8506WWARUZR7 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 ADD8506WWARUZR7 meets industry standards.
7.What is the process for return or replacement of ADD8506WWARUZR7?
All ADD8506WWARUZR7 units undergo pre-shipment inspection (PSI). If there is an issue with ADD8506WWARUZR7, 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 ADD8506WWARUZR7 part is unused and in its original packaging.
Return procedure for ADD8506WWARUZR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADD8506WWARUZR7 Tags
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LT6552CS8#PBF
Analog Devices Inc.
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LT6205IS5#TRPBF
Analog Devices Inc.
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LT6206IMS8#TRPBF
Analog Devices Inc.
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LT6552CDD#PBF
Analog Devices Inc.
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LT6552IS8#PBF
Analog Devices Inc.
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LT1252CS8#PBF
Analog Devices Inc.
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AD818ARZ-REEL7
Analog Devices Inc.
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MAX4310EUA+
Analog Devices Inc./Maxim Integrated
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AD829ARZ
Analog Devices Inc.
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AD810ARZ
Analog Devices Inc.
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MAX4310ESA+
Analog Devices Inc./Maxim Integrated
-
MAX4313ESA+
Analog Devices Inc./Maxim Integrated
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