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Analog Devices Inc. AD8134ACPZ-R2
- Part No.:
- AD8134ACPZ-R2
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 24-WFQFN Exposed Pad, CSP
- Datasheet:
-
AD8134ACPZ-R2.pdf
- Description:
- IC OPAMP DIFF 3 CIRCUIT 24LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:250
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Product details
Overview
AD8134ACPZ-R2 from Analog Devices is a triple high-speed differential driver IC designed for RGB video transmission over twisted-pair cable, featuring 225 MHz large-signal bandwidth, 1600 V/µs slew rate, fixed gain of 2, and on-chip sync-on-common-mode circuitry for balanced HSYNC/VSYNC transmission in KVM systems.
For engineers reviewing the AD8134ACPZ-R2 datasheet, AD8134ACPZ-R2 pinout, AD8134ACPZ-R2 application, or AD8134ACPZ-R2 equivalent, this page delivers verified specifications, package mapping, functional pin definitions, real-world use cases in video infrastructure, and validated alternative options for differential video driver selection.
Technical Context
The AD8134ACPZ-R2 integrates three independent differential drivers, each with dual feedback loops-one for differential output control and one for common-mode voltage regulation-enabling precise output balance (−60 dB @ 50 MHz) without external tuning. Its internal common-mode feedback network forces output common-mode voltage to track sync-level inputs while preserving differential signal integrity.
It supports both single-ended-to-differential and differential-to-differential operation, drives doubly terminated 100 Ω UTP cable with 1.4 Vp-p video signals, and includes an Output Pull-Down (OPD) feature for line isolation during multiplexing. Amplifier-to-amplifier isolation reaches 80 dB @ 10 MHz, critical for crosstalk-sensitive RGB channel separation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Large-signal bandwidth | 225 MHz at 2 Vp-p output - enables full HD RGB video transmission over Cat-5 cable without attenuation-induced distortion |
| Small-signal bandwidth | 450 MHz at 0.2 Vp-p - supports high-frequency timing margins and fast transient response in multi-channel sync applications |
| Slew rate | 1600 V/µs - ensures minimal edge distortion for sharp sync pulse reproduction and pixel clock fidelity |
| Output balance error | −60 dB @ 50 MHz - guarantees <0.1% amplitude/phase mismatch between complementary outputs, reducing EMI and harmonic content |
| Fixed differential gain | 2.0 V/V - compensates for 6 dB loss across doubly terminated 100 Ω lines, eliminating need for external gain-setting resistors |
| Quiescent current | 26.5 mA @ +5 V - supports low-power KVM endpoint designs without thermal derating in compact enclosures |
| Operating temperature | −40°C to +85°C - qualified for industrial-grade embedded video distribution hardware |
Pinout & Package
The AD8134ACPZ-R2 is housed in a 24-lead 4 mm × 4 mm LFCSP package with exposed paddle (EPAD) requiring thermal vias to inner PCB planes for thermal management (θJA = 70°C/W on 4-layer board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OPD) | Output Pull-Down control | Asserts low-voltage state (<0.9 V above VS−) on all outputs for differential multiplexing; 100 ns response time |
| 2,5,14,21 (VS−) | Negative supply rail | Common return for all three amplifiers and sync circuitry; must be decoupled with 0.1 µF per pin |
| 3,4,6,7 (R channel) | Red amplifier I/O | −IN R / +IN R / −OUT R / +OUT R - dedicated RGB channel with matched layout for skew control |
| 9,10,22,23 (G channel) | Green amplifier I/O | +OUT G / −OUT G / +IN G / −IN G - independent gain path; 80 dB isolation from R/B channels |
| 12,13,15,16 (B channel) | Blue amplifier I/O | +OUT B / −OUT B / +IN B / −IN B - identical topology to R/G; supports simultaneous RGB drive |
| 18 (SYNC LEVEL) | Sync amplitude reference | Sets common-mode sync pulse level (0.5 V target); gain of 1.02× to red/blue, 2.03× to green outputs |
| 19 (HSYNC), 20 (VSYNC) | Sync pulse inputs | Accept TTL-compatible sync edges; drive internal common-mode modulators with 700–1000 V/µs slew |
| 8,11,17,24 (VS+) | Positive supply rail | Dual-rail support (+5 V or ±5 V); PSRR −48 dB ensures immunity to supply noise on video paths |
Key Features
| Feature | Design Value |
|---|---|
| Triple differential driver architecture | Three fully independent, internally matched amplifiers eliminate inter-channel gain/phase drift in RGB systems |
| Sync-on-common-mode circuitry | Transmits HSYNC/VSYNC as balanced common-mode signals over same twisted pair, cutting EMI by >20 dB vs. separate sync wires |
| Output pull-down (OPD) | Enables hot-swappable differential multiplexing using external series diodes-no external FETs or logic required |
| Internal common-mode feedback | Maintains −60 dB output balance up to 50 MHz without trimming, ensuring consistent differential signal integrity across temperature |
| Doubly terminated 100 Ω drive capability | Direct interface to Category 5 UTP without external termination resistors or impedance-matching networks |
Applications
| RGB Video over Cat-5 Cable | KVM Switching Systems |
|---|---|
Use Scenario: Transmitting analog RGBHV signals from PC source to remote monitor over 100 m of unshielded twisted pair. IC Role / Device Role / Timing Role: Triple differential driver converting single-ended RGB inputs to balanced differential outputs while embedding sync pulses onto common-mode channels. Use Value: Eliminates separate sync wiring, reduces cable count by 50%, and maintains <0.5% differential gain error across 200 MHz bandwidth. |
Use Scenario: Centralized KVM matrix supporting dynamic switching between multiple host computers and displays. IC Role / Device Role / Timing Role: Driver enabling seamless channel arbitration via OPD-controlled output disable, preventing bus contention during reconfiguration. Use Value: Sub-100 ns OPD assert/de-assert allows glitch-free switching without visible screen tearing or sync loss. |
| Video Distribution Amplifiers | Industrial Machine Vision Interfaces |
Use Scenario: Fan-out of high-resolution video to multiple monitors or recording devices in broadcast control rooms. IC Role / Device Role / Timing Role: Low-distortion buffer maintaining 64 dB SFDR @ 10 MHz to preserve color fidelity and edge sharpness. Use Value: 225 MHz large-signal bandwidth supports 1080p60 with <1 LSB error in 10-bit color depth systems. |
Use Scenario: Interfacing FPGA-based image processors to analog camera sensors or legacy display modules. IC Role / Device Role / Timing Role: Level-shifting and differential conversion of LVCMOS video clocks and data streams for noise-immune PCB routing. Use Value: Input common-mode range of −5 V to +5 V accommodates mixed-supply FPGA I/O without level translators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple differential driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8130ARZ | Single-channel, lower power (12 mA), no sync-on-common-mode; 320 MHz small-signal BW | Requires three discrete units for RGB; lacks integrated sync modulation and OPD functionality | Use only when space/power constraints outweigh need for integrated sync and multiplexing features |
| THS7374IPWPR | Triple SD/HD video driver with 100 MHz BW, no common-mode sync, no OPD, 3.3 V only | Optimized for consumer CVBS/YUV; lacks RGB-specific balance performance and wide supply range | Select for cost-sensitive SD video systems where 225 MHz BW and ±5 V operation are unnecessary |
Compared with AD8134ACPZ-R2, AD8130ARZ requires board-level replication for RGB and forfeits sync integration, while THS7374IPWPR trades bandwidth, supply flexibility, and EMI-reducing sync capability for lower unit cost in non-professional video applications.
Availability
AD8134ACPZ-R2 is available at Aetrix Electronics and suitable for KVM infrastructure, broadcast video distribution, industrial machine vision interfaces, and embedded display subsystems requiring stable component supply, long-term lifecycle assurance, and guaranteed traceable sourcing.
Supply support for AD8134ACPZ-R2 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, serving precision instrumentation, communications, and industrial markets since 1965.
The AD8134ACPZ-R2 belongs to Analog Devices' high-speed differential driver product line, engineered specifically for noise-immune analog video transmission over cost-effective twisted-pair cabling in professional and industrial environments.
FAQ
What is the supply voltage range supported by the AD8134ACPZ-R2?
The AD8134ACPZ-R2 operates from a single +4.5 V to +6 V supply or dual ±4.5 V to ±6 V supplies. At +5 V, it draws 26.5 mA quiescent current; at ±5 V, consumption rises to 31 mA. The extended range ensures compatibility with legacy 5 V systems and modern bipolar video signal chains without level-shifting circuitry.
How does the sync-on-common-mode feature work in the AD8134ACPZ-R2?
The AD8134ACPZ-R2 embeds horizontal and vertical sync pulses onto the common-mode voltage of its differential outputs using dedicated HSYNC, VSYNC, and SYNC LEVEL pins. This eliminates separate sync wires, reduces EMI radiation by >20 dB, and maintains tight timing alignment between RGB data and sync edges across all three channels.
Can the AD8134ACPZ-R2 drive standard 75 Ω coaxial video cables?
No-the AD8134ACPZ-R2 is optimized for doubly terminated 100 Ω differential loads like Cat-5 UTP or PCB differential pairs. Driving 75 Ω coax requires external impedance transformation (e.g., balun or resistor network), which degrades balance and bandwidth. For coax applications, Analog Devices recommends the AD8129 or AD8143 receiver/driver pairs.
What is the purpose of the OPD pin on the AD8134ACPZ-R2?
The OPD (Output Pull-Down) pin on the AD8134ACPZ-R2 asserts a low-impedance state on all six outputs, pulling them to VS− + 0.8 V within 100 ns. Used with external series diodes, it enables differential multiplexing of multiple AD8134ACPZ-R2 drivers on shared twisted-pair lines without bus contention or signal reflection.
Does the AD8134ACPZ-R2 require external gain-setting resistors?
No-the AD8134ACPZ-R2 has a fixed internal differential gain of 2.0 V/V, implemented via precision on-chip 1.5 kΩ and 750 Ω resistors. This eliminates external components, ensures gain stability over temperature, and simplifies layout for RGB video applications where line termination loss must be compensated exactly.
AD8134ACPZ-R2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-WFQFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Differential
- Number of Circuits:
- 3
- Output Type:
- Differential
- Slew Rate:
- 1600V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 450 MHz
- Current - Input Bias:
- 67 µA
- Voltage - Input Offset:
- 4 mV
- Current - Supply:
- 31mA
- Current - Output / Channel:
- 90 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-LFCSP-WQ (4x4)
AD8134ACPZ-R2 FAQ
1.How can I place an order for AD8134ACPZ-R2 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8134ACPZ-R2 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 AD8134ACPZ-R2 reliable?
The price and inventory of AD8134ACPZ-R2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8134ACPZ-R2 is usually 5 days.
3.What payment methods are accepted for AD8134ACPZ-R2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8134ACPZ-R2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8134ACPZ-R2?
AD8134ACPZ-R2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8134ACPZ-R2 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 AD8134ACPZ-R2?
For technical support, including AD8134ACPZ-R2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8134ACPZ-R2 requirements.
6.How does Aetrix verify that AD8134ACPZ-R2 is sourced from the original manufacturer or authorized distributors?
All AD8134ACPZ-R2 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 AD8134ACPZ-R2 meets industry standards.
7.What is the process for return or replacement of AD8134ACPZ-R2?
All AD8134ACPZ-R2 units undergo pre-shipment inspection (PSI). If there is an issue with AD8134ACPZ-R2, 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 AD8134ACPZ-R2 part is unused and in its original packaging.
Return procedure for AD8134ACPZ-R2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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