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Analog Devices Inc. AD8174ARZ-RL
- Part No.:
- AD8174ARZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Specialized
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8174ARZ-RL.pdf
- Description:
- IC INTERFACE SPECIALIZED 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,734
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Product details
Overview
AD8174ARZ-RL from Analog Devices is a 4:1 high-speed buffered video multiplexer with integrated current-feedback amplifier, 250 MHz bandwidth (G = +2), 10 ns channel switching time, and 50 mA output drive capability. It supports pixel switching in LCD/plasma displays and video routing systems requiring low crosstalk (–78 dB @ 5 MHz) and high disable isolation (–88 dB @ 5 MHz).
For engineers reviewing the AD8174ARZ-RL datasheet, AD8174ARZ-RL pinout, AD8174ARZ-RL application, or AD8174ARZ-RL equivalent, key selection criteria include its fast enable/disable timing (17 ns enable-to-on, 120 ns enable-to-off), shutdown mode (1.5 mA quiescent current), differential gain error (0.02%), and SOIC-14 package compatibility with industrial video signal paths.
Technical Context
The AD8174ARZ-RL implements four complementary bipolar input switches controlled by A0/A1 logic, feeding a single current-feedback amplifier whose gain is set externally via RF/RG resistors. Its internal clamping architecture enables high shutdown isolation (–92 dB @ 5 MHz) and fast transient suppression during channel switching.
It features dual digital control: ENABLE places the output in high-impedance state (IS = 4.1 mA), while SD asserts full shutdown (IS = 1.5 mA). Input resistance is 1.7 MΩ at switch inputs and 100 Ω at buffer inputs; output impedance is 10 mΩ when enabled and 10 MΩ when disabled or shut down.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth (–3 dB) | 250 MHz at G = +2, RL = 100 Ω - supports HD video baseband signals without attenuation |
| Channel Switching Time | 9.1 ns (50% logic to 90% output) - enables sub-pixel timing in high-refresh-rate displays |
| Differential Gain Error | 0.02% at 3.58 MHz - preserves color fidelity in NTSC/PAL composite video |
| Disable Isolation | –88 dB at 5 MHz - prevents signal leakage between inactive channels in multi-source routers |
| Shutdown Current | 1.5 mA max - reduces power in standby mode for thermally constrained embedded video systems |
| Output Drive | 50 mA into 10 Ω - drives long coaxial cables or multiple downstream loads without external buffering |
| Crosstalk (All Hostile) | –78 dB at 5 MHz - ensures clean separation of RGB or YUV component video streams |
Pinout & Package
AD8174ARZ-RL is housed in a 14-lead narrow SOIC (R-14) package with standard 1.27 mm pitch, JEDEC MS-012AC compliant, and rated for –40°C to +85°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN0) | Input Channel 0 | Analog input terminal for first video source; high-impedance (1.7 MΩ) buffered stage |
| 2 (IN1) | Input Channel 1 | Analog input terminal for second video source; identical electrical characteristics to IN0 |
| 3 (IN2) | Input Channel 2 | Analog input terminal for third video source; shares same switch architecture and biasing |
| 4 (IN3) | Input Channel 3 | Analog input terminal for fourth video source; fully matched to other inputs for gain/phase tracking |
| 5 (GND) | Analog Ground | Primary reference for input switches and amplifier; must be low-inductance connection to PCB ground plane |
| 6 (A0) | Address Bit 0 | Logic input selecting channel (0/1/2/3); accepts 0.8 V / 2.0 V TTL-compatible thresholds |
| 7 (A1) | Address Bit 1 | Logic input selecting channel (0/1/2/3); used with A0 per truth table for 4:1 decoding |
| 8 (ENABLE) | Output Enable Control | Active-low logic input; high state disables amplifier output to high-Z (IS = 4.1 mA) |
| 9 (+VS) | Positive Supply | Connects to +4 V to +6 V rail; bypass with 0.1 µF ceramic + 4.7 µF tantalum capacitors |
| 10 (VOUT) | Amplified Output | Current-feedback amplifier output; capable of ±4.0 V swing into 1 kΩ, ±3.5 V into 150 Ω |
| 11 (–VIN) | Inverting Input | Feedback node for external resistor network; 100 Ω input impedance, critical for stability |
| 12 (SD) | Shutdown Control | Active-high logic input; high state shuts down all switches and amplifier (IS = 1.5 mA) |
| 13 (–VS) | Negative Supply | Connects to –4 V to –6 V rail; symmetric supply required for full dynamic range |
| 14 (GND) | Power Ground | Dedicated ground return for supply currents; separate from analog ground in star-point layout |
Key Features
| Feature | Design Value |
|---|---|
| Fully buffered inputs and outputs | 1.7 MΩ input resistance on switch side and 100 Ω on buffer side minimize loading on upstream sources and downstream loads |
| Fast output disable (AD8174 only) | 17 ns enable-to-on and 120 ns enable-to-off times allow cascading multiple AD8174ARZ-RL devices on shared bus without contention |
| High shutdown isolation | –92 dB at 5 MHz ensures no signal coupling through powered-down device in multi-mux arrays |
| Flexible gain setting | External RF/RG resistors support gains of +1, +2, +10, +20 with documented bandwidth trade-offs per Table III |
| Low differential phase error | 0.05° at 3.58 MHz maintains precise hue reproduction in broadcast-quality video systems |
Applications
| Video Router Backplane | Multi-Source Display Controller |
|---|---|
Use Scenario: Centralized switching of up to 16 video sources across 4 independent output buses in broadcast infrastructure. IC Role / Device Role / Timing Role: 4:1 multiplexer stage in hierarchical routing tree; ENABLE pin synchronizes output bus access across parallel AD8174ARZ-RL units. Use Value: –78 dB crosstalk prevents ghosting between HDMI/SDI sources; 10 ns switching enables frame-accurate source transitions. | Use Scenario: Driving three independent display panels (main, PIP, status) from a single graphics processor with independent timing control. IC Role / Device Role / Timing Role: Channel selector feeding LVDS transmitter; SD pin powers down unused paths during panel sleep modes. Use Value: 1.5 mA shutdown current extends battery life in portable medical imaging displays; 0.02% differential gain preserves diagnostic image contrast. |
| LCD Panel Pixel Multiplexing | Plasma Display Subfield Driver |
Use Scenario: Routing RGB data streams to column drivers in high-resolution TFT-LCD modules with >120 Hz refresh rates. IC Role / Device Role / Timing Role: High-speed analog switch preceding gamma correction DAC; A0/A1 pins synchronized to gate driver timing controller. Use Value: 250 MHz bandwidth passes 10-bit RGB signals without edge ringing; 15 ns settling ensures accurate pixel charge transfer. | Use Scenario: Selecting sustain pulse waveforms for individual plasma cell rows during subfield addressing sequences. IC Role / Device Role / Timing Role: Fast-switching multiplexer in high-voltage sustain driver chain; ENABLE pin isolates inactive row sections during reset phases. Use Value: –88 dB disable isolation prevents false firing of adjacent cells; 50 mA output drive sustains 100+ V/ns slew rates into capacitive plasma loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 4:1 high-speed video multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8174ARZ | Same die, tape-and-reel vs. tube packaging; identical electrical specs and pinout | No functional difference; ARZ-RL optimized for automated SMT placement | Select AD8174ARZ-RL for high-volume production requiring reel-fed pick-and-place |
| THS4521IDR | Single-ended-to-differential driver (not multiplexer); no channel selection logic or ENABLE/SD pins | Requires external logic and discrete switches to replicate 4:1 function; higher board area and BOM count | Choose THS4521IDR only when differential signaling and programmable gain outweigh integration benefits |
Compared with AD8174ARZ and THS4521IDR, the AD8174ARZ-RL provides factory-verified tape-and-reel consistency for SMT lines, retains full 4:1 switching functionality with hardware-controlled enable/shutdown, and delivers lower system-level cost through reduced component count and layout complexity.
Availability
AD8174ARZ-RL is available at Aetrix Electronics and suitable for video routers, LCD/plasma display controllers, and broadcast equipment requiring stable component supply, long-term obsolescence management, and RoHS-compliant SOIC packaging.
Supply support for AD8174ARZ-RL 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, founded in 1965 and headquartered in Wilmington, MA.
The AD8174ARZ-RL belongs to Analog Devices' high-speed video multiplexer product line, engineered specifically for broadcast, medical imaging, and industrial display systems demanding sub-10 ns switching, ultra-low distortion, and robust channel isolation.
FAQ
What is the maximum operating supply voltage for the AD8174ARZ-RL?
The AD8174ARZ-RL operates from ±4 V to ±6 V dual supplies, with absolute maximum ratings of ±6.3 V per rail. Exceeding ±6.3 V risks permanent damage. For optimal video performance at G = +2, ±5 V is recommended per the datasheet's test conditions and Figure 1 small-signal response curve.
How does the AD8174ARZ-RL achieve –92 dB shutdown isolation?
The AD8174ARZ-RL achieves –92 dB shutdown isolation at 5 MHz by fully disabling all input switches and the current-feedback amplifier when SD = Logic 1, reducing output impedance to 10 MΩ and minimizing capacitive coupling through the package. This is verified in Figure 14 and specified in Note 8 of the datasheet under Shutdown Isolation.
Can the AD8174ARZ-RL be used with single-supply operation?
No, the AD8174ARZ-RL requires dual ±4 V to ±6 V supplies as confirmed by its absolute maximum ratings, input common-mode range (±3.3 V), and internal complementary bipolar switch architecture. Single-supply operation is not supported and would violate the device's operational specifications.
What is the purpose of the two GND pins (Pins 5 and 14) on the AD8174ARZ-RL?
Pins 5 and 14 serve distinct grounding roles: Pin 5 is analog ground for input switches and amplifier biasing, while Pin 14 is power ground for supply return currents. The datasheet mandates separate low-inductance traces converging at a single star point to prevent noise coupling-critical for maintaining 0.02% differential gain accuracy.
Does the AD8174ARZ-RL support gain configuration other than +2?
Yes, the AD8174ARZ-RL supports gains of +1, +10, and +20 using external RF/RG resistor combinations listed in Table III. At G = +1, bandwidth increases to 780 MHz (small signal), while G = +10 reduces bandwidth to 50 MHz-enabling trade-offs between speed and gain per application requirements.
AD8174ARZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Multiplexer with Amplifier
- Interface:
- -
- Voltage - Supply:
- ±4V ~ 6V
- Supplier Device Package:
- 14-SOIC
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
AD8174ARZ-RL FAQ
1.How can I place an order for AD8174ARZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8174ARZ-RL 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 AD8174ARZ-RL reliable?
The price and inventory of AD8174ARZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8174ARZ-RL is usually 5 days.
3.What payment methods are accepted for AD8174ARZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8174ARZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8174ARZ-RL?
AD8174ARZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8174ARZ-RL 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 AD8174ARZ-RL?
For technical support, including AD8174ARZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8174ARZ-RL requirements.
6.How does Aetrix verify that AD8174ARZ-RL is sourced from the original manufacturer or authorized distributors?
All AD8174ARZ-RL 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 AD8174ARZ-RL meets industry standards.
7.What is the process for return or replacement of AD8174ARZ-RL?
All AD8174ARZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with AD8174ARZ-RL, 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 AD8174ARZ-RL part is unused and in its original packaging.
Return procedure for AD8174ARZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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