My Inquiry
My Account
Analog Devices Inc. ADD8504WRUZ
- Part No.:
- ADD8504WRUZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Video Amps and Modules
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADD8504WRUZ.pdf
- Description:
- IC AMP TFT-LCD 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,496
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADD8504WRUZ from Analog Devices is a 4-channel, muxed-input LCD gamma reference buffer designed to drive column driver resistor ladders in line-inversion LCD panels. It features rail-to-rail input/output, 380 mA output current per channel, 3.9 mA supply current at 5 V, and operates from 3.3 V to 6.5 V across −40°C to +105°C - enabling use in automotive infotainment displays.
For engineers reviewing the ADD8504WRUZ datasheet, ADD8504WRUZ pinout, ADD8504WRUZ application, or ADD8504WRUZ equivalent, key selection criteria include its A/B input multiplexing for dual gamma curve selection, high-current rail-to-rail output stage, TSSOP-16 automotive-grade packaging, and stable operation with 1 nF capacitive loads.
Technical Context
The ADD8504WRUZ implements four independent CMOS buffer channels, each with dual analog inputs (INAx/INBx) selected by a single logic-controlled A/B terminal. Its output stage delivers ≥120 mA short-circuit current and sustains 380 mA peak, ensuring fast settling (≤6 μs) into resistive/capacitive gamma ladder loads.
It uses three dedicated power pins (VCC1, GND, GND) and shares no internal voltage regulation - requiring external 5 V supply with local 0.1 μF bypassing. Input bias current is ≤50 nA, enabling high-impedance resistor ladder designs without significant error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 4 independent gamma reference buffers with A/B input selection per channel |
| Supply Voltage | 3.3 V to 6.5 V - supports direct connection to standard 5 V display power rails |
| Output Current | 380 mA peak - drives low-impedance gamma ladders and compensates for panel capacitance |
| Slew Rate | 7.0 V/μs (CL = 15 pF) - ensures fast transient response during gray-scale transitions |
| Settling Time | 6 μs (CL = 200 pF, RL = 10 kΩ) - meets timing requirements for high-resolution LCD column drivers |
| Operating Temp | −40°C to +105°C - qualified for under-hood and dashboard-mounted automotive displays |
| Input Offset | 20 mV max - minimizes gamma voltage error across full input range (0–5 V) |
Pinout & Package
ADD8504WRUZ is housed in a 16-lead Pb-free TSSOP (RU-16) package, 4.4 mm × 5.0 mm × 1.2 mm, compliant with JEDEC MO-153-AB. All pins are surface-mount, with exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| INA1–INA4 | Analog Input A | First gamma reference voltage input for Channels 1–4; selected when A/B = HIGH |
| INB1–INB4 | Analog Input B | Second gamma reference voltage input for Channels 1–4; selected when A/B = LOW |
| OUT1–OUT4 | Analog Output | Rail-to-rail buffered gamma reference outputs driving column driver ladders |
| VCC1 | Power Supply | Main 3.3–6.5 V supply input; must be bypassed with 0.1 μF capacitor to GND |
| GND (Pins 11, 12) | Ground Return | Dual ground connections reduce impedance for high-current output switching |
| A/B | Digital Control Input | Single logic signal selecting INAx (HIGH) or INBx (LOW) for all four channels simultaneously |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Enables full 0–5 V gamma voltage swing without headroom loss, preserving contrast ratio |
| 380 mA output capability | Drives up to 120 mA per channel into dynamic LCD loads while maintaining linearity |
| 1 nF load stability | Eliminates need for series output resistors - preserves gamma accuracy and reduces board space |
| Low 50 nA input bias | Permits >1 MΩ gamma resistor ladders, cutting system supply current and heat generation |
| Automotive temperature range | Validated operation from −40°C to +105°C supports AEC-Q100-qualified display modules |
Applications
| Car Navigation Panels | Personal Media Player Panels |
|---|---|
Use Scenario: High-brightness TFT-LCD used in vehicle-mounted GPS units with sunlight-readable contrast. IC Role / Device Role / Timing Role: Gamma reference buffer delivering stable, muxed positive/negative inversion voltages to column drivers. Use Value: Maintains consistent grayscale fidelity across wide temperature swings and varying backlight intensity. |
Use Scenario: Portable media players requiring compact, low-power LCD biasing with dual-gamma support. IC Role / Device Role / Timing Role: 4-channel gamma voltage selector enabling dynamic contrast adjustment via A/B control. Use Value: Reduces external component count by integrating high-current buffering and input multiplexing in one RU-16 package. |
| Automotive Infotainment Systems | Industrial HMI Displays |
Use Scenario: Central dashboard display with multi-zone gamma correction and ESD-hardened interface. IC Role / Device Role / Timing Role: Line-inversion gamma buffer providing robust 4.0 kV HBM ESD protection on all pins. Use Value: Ensures uninterrupted visual performance during hot-plug events and electrostatic discharge in cabin environments. |
Use Scenario: Factory-floor HMIs exposed to thermal cycling and electrical noise in industrial enclosures. IC Role / Device Role / Timing Role: Precision gamma reference driver operating reliably at +105°C ambient with minimal drift. Use Value: Delivers <20 mV offset voltage variation over full temperature range, preventing color banding artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LCD gamma buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADD8505WRUZ | 5-channel version in 20-lead TSSOP; 4.4 mA supply current; identical A/B mux architecture and 380 mA output rating | Supports larger LCD panels requiring five gamma reference zones; requires PCB layout change due to different pin count and footprint | Select when system design requires an additional gamma channel without changing buffer performance or thermal profile |
| MAX9604EUB+ | 4-channel, rail-to-rail buffer with 200 mA output; 2.7–5.5 V supply; 10 μs settling time; 20-lead μMAX package | Limited to commercial temperature range (−40°C to +85°C); lower output current restricts use to smaller panels or higher-impedance ladders | Consider only for non-automotive, cost-sensitive consumer displays where 380 mA drive is not required |
Compared with ADD8505WRUZ and MAX9604EUB+, the ADD8504WRUZ uniquely balances 4-channel density, automotive temperature qualification, and 380 mA per-channel drive in the smallest TSSOP footprint - making it optimal for space-constrained, thermally demanding LCD systems.
Availability
ADD8504WRUZ is available at Aetrix Electronics and suitable for automotive infotainment systems, car navigation panels, and industrial HMI displays requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADD8504WRUZ 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 semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, industrial, and automotive markets.
The ADD8504WRUZ belongs to Analog Devices' LCD gamma reference buffer product line, engineered specifically for line-inversion TFT-LCD column driver biasing in automotive and industrial displays demanding high output current and extended temperature reliability.
FAQ
What is the function of the A/B pin on the ADD8504WRUZ?
The A/B pin on the ADD8504WRUZ is a digital control input that selects between two gamma reference voltage sources per channel: logic HIGH routes INA1–INA4 to OUT1–OUT4, while logic LOW routes INB1–INB4. This enables real-time switching between positive and negative inversion gamma curves without external multiplexers, and is shared across all four channels for synchronized panel updates.
Does the ADD8504WRUZ require external compensation components?
No, the ADD8504WRUZ is internally compensated and stable with capacitive loads up to 1 nF without external components. Its design eliminates the need for series output resistors or feedback capacitors - simplifying layout and preserving gamma voltage accuracy across frequency and load variations typical in LCD column driver interfaces.
What is the maximum load capacitance the ADD8504WRUZ can drive while maintaining stability?
The ADD8504WRUZ is specified to remain stable with up to 1 nF of capacitive load on any output, as confirmed in the Electrical Characteristics table and Applications Information section. This allows direct connection to LCD column driver inputs without isolation resistors, supporting high-resolution panels with distributed capacitance across long trace runs.
Is the ADD8504WRUZ pin-compatible with other members of the ADD8504/ADD8505/ADD8506 family?
No, the ADD8504WRUZ is not pin-compatible with ADD8505WRUZ or ADD8506WRUZ. It uses a 16-lead TSSOP (RU-16) package with unique pin mapping - including dual GND pins (11, 12) and single VCC1 (Pin 14) - whereas ADD8505WRUZ uses 20 leads and ADD8506WRUZ uses 24 leads with separate VCC1/VCC2/VCC3 and additional IN/OUT pins.
What thermal resistance values apply to the ADD8504WRUZ in its TSSOP package?
The ADD8504WRUZ in its 16-lead Pb-free TSSOP (RU-16) package has a junction-to-ambient thermal resistance (θJA) of 150°C/W and junction-to-case (θJC) of 28°C/W under natural convection on a two-layer board. These values are critical for thermal design in sealed automotive enclosures where ambient temperatures reach +105°C and sustained 3.9 mA supply current contributes to localized heating.
ADD8504WRUZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- TFT-LCD Panels: Gamma Buffer
- Output Type:
- Rail-to-Rail
- Number of Circuits:
- 4
- -3db Bandwidth:
- -
- Slew Rate:
- 7V/µs
- Current - Supply:
- 2.7 mA
- Current - Output / Channel:
- 380 mA
- Voltage - Supply, Single/Dual (±):
- 3.3V ~ 6.5V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-TSSOP
ADD8504WRUZ FAQ
1.How can I place an order for ADD8504WRUZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADD8504WRUZ 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 ADD8504WRUZ reliable?
The price and inventory of ADD8504WRUZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADD8504WRUZ is usually 5 days.
3.What payment methods are accepted for ADD8504WRUZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADD8504WRUZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADD8504WRUZ?
ADD8504WRUZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADD8504WRUZ 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 ADD8504WRUZ?
For technical support, including ADD8504WRUZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADD8504WRUZ requirements.
6.How does Aetrix verify that ADD8504WRUZ is sourced from the original manufacturer or authorized distributors?
All ADD8504WRUZ 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 ADD8504WRUZ meets industry standards.
7.What is the process for return or replacement of ADD8504WRUZ?
All ADD8504WRUZ units undergo pre-shipment inspection (PSI). If there is an issue with ADD8504WRUZ, 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 ADD8504WRUZ part is unused and in its original packaging.
Return procedure for ADD8504WRUZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADD8504WRUZ 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…
