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Analog Devices Inc. AD8170ARZ
- Part No.:
- AD8170ARZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Specialized
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8170ARZ.pdf
- Description:
- IC INTERFACE SPECIALIZED 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,974
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Product details
Overview
AD8170ARZ from Analog Devices is a 2:1 high-speed buffered video multiplexer with internal current-feedback amplifier, 250 MHz bandwidth (G = +2), 10 ns channel switching time, and ±4.0 V output swing into 1 kΩ at ±5 V supply. It delivers 50 mA output current and achieves 0.02% differential gain error for SD/HD video routing in LCD display timing controllers.
For engineers reviewing the AD8170ARZ datasheet, AD8170ARZ pinout, AD8170ARZ application, or AD8170ARZ equivalent, this page provides verified technical context, real-world design meaning of key specs, SOIC-8 package details, video-optimized performance tradeoffs, and two validated alternative parts for signal integrity-critical analog switching.
Technical Context
The AD8170ARZ integrates complementary bipolar input switches with a current-feedback amplifier architecture-enabling sub-10 ns switching via current-steering logic and maintaining 250 MHz small-signal bandwidth at G = +2 with 499 Ω feedback resistors. Its transresistance is 400–600 kΩ, and open-loop voltage gain ranges from 2000 to 6000 V/V.
It operates from ±4 V to ±6 V supplies, draws 9.7 mA quiescent current, and features fully buffered inputs/outputs with 1.7 MΩ (+) switch input resistance and 100 Ω (–) buffer input resistance. Input common-mode rejection is 51–56 dB (+CMRR) and 50–52 dB (–CMRR), while PSRR is 58–66 dB (+PSRR) and 52–58 dB (–PSRR).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| –3 dB Bandwidth | 250 MHz at G = +2, RL = 100 Ω - supports full HD (1080p60) baseband video without attenuation |
| Channel Switching Time | 7.5 ns (rise), 9.1 ns (fall) - enables pixel-level switching in "picture-in-picture" architectures |
| Differential Gain / Phase Error | 0.02% / 0.05° at 3.58 MHz - meets NTSC/PAL broadcast video fidelity requirements |
| Output Drive Capability | 50 mA continuous, 180 mA short-circuit - drives 150 Ω video loads and multiple downstream buffers |
| Crosstalk | –80 dB at 5 MHz - prevents ghosting between active/inactive video channels in multi-source systems |
| Input Voltage Range | ±3.3 V - accommodates standard ±1 V to ±2 V video signal swings with headroom |
| Quiescent Current | 9.7 mA at ±5 V - enables low-power operation in portable display subsystems |
Pinout & Package
AD8170ARZ is housed in an 8-lead narrow-body SOIC (SO-8) package with standard JEDEC MS-012AC footprint (5.3 mm × 6.2 mm, 1.75 mm height). Pin 1 is marked by a beveled corner or dot.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | +VS | Positive supply rail (±4 V to ±6 V); requires local 0.1 µF + 4.7 µF bypassing |
| 2 | IN0 | Noninverting input of Channel 0; 1.7 MΩ input resistance, 1.1 pF capacitance |
| 3 | IN1 | Noninverting input of Channel 1; identical impedance and noise characteristics as IN0 |
| 4 | GND | Analog ground reference; must connect to low-impedance PCB ground plane |
| 5 | –VS | Negative supply rail; symmetric to +VS for rail-to-rail output swing capability |
| 6 | SELECT | Digital control: Logic 0 selects IN0 → VOUT; Logic 1 selects IN1 → VOUT (TTL/CMOS compatible) |
| 7 | VOUT | Amplified, buffered output; capable of ±4.0 V swing into 1 kΩ, 50 mA drive |
| 8 | –VIN | Inverting input of internal current-feedback amplifier; connects externally to RG for gain setting |
Key Features
| Feature | Design Value |
|---|---|
| Fully buffered inputs and outputs | Eliminates loading effects when cascading multiple AD8170ARZ devices or driving long coaxial cables |
| Internal current-feedback amplifier | Enables wide bandwidth independent of closed-loop gain-250 MHz at G = +2, 710 MHz at G = +1 |
| Flexible external gain setting | Gain set by RF/RG ratio (e.g., RF = RG = 499 Ω → G = +2); supports gains from +1 to +20 |
| Low differential phase/gain error | 0.05° and 0.02% at 3.58 MHz ensures color fidelity in composite video and RGB timing paths |
| High disable isolation (AD8174 only) | Not applicable - AD8170ARZ has no ENABLE/SD pins; all channels always active |
Applications
| Video Routers | Pixel-Level Switching |
|---|---|
|
Use Scenario: Routing multiple camera feeds to a single display controller in broadcast equipment. IC Role / Device Role / Timing Role: 2:1 analog multiplexer selecting between two synchronized video streams with sub-10 ns glitch suppression. Use Value: Prevents visible tearing or crosstalk during live source switching due to –80 dB crosstalk and 138 mVp-p transient suppression. |
Use Scenario: Dynamic overlay insertion in LCD timing controllers (e.g., OSD + main video). IC Role / Device Role / Timing Role: High-speed analog switch enabling pixel-clock-synchronized source selection before DAC input. Use Value: 7.5 ns rise time ensures clean transitions within one pixel period at 13.5 MHz (480p) or 74.25 MHz (1080p). |
| LCD Display Timing Controllers | Professional Video Test Equipment |
|
Use Scenario: Signal path selection in programmable gamma correction or color space conversion modules. IC Role / Device Role / Timing Role: Buffered multiplexer isolating calibration reference signals from operational video paths. Use Value: ±4.0 V output swing and 0.02% differential gain preserve grayscale linearity across 8-bit to 12-bit video data paths. |
Use Scenario: Precision signal injection and monitoring in video waveform analyzers and jitter test sets. IC Role / Device Role / Timing Role: Low-noise, high-Z input stage feeding calibrated reference signals into measurement front-ends. Use Value: 10 nV/√Hz input voltage noise and 1.6 pA/√Hz (+) input current noise minimize added uncertainty in µV-level measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8170AR | Same die, identical electrical specs; AR denotes SOIC-8 package, ARZ adds lead-free (Pb-free) and RoHS-compliant finish | No functional difference; ARZ required for RoHS-compliant production builds | Select AD8170ARZ for new designs targeting EU/China RoHS compliance; AD8170AR remains viable for legacy non-RoHS assemblies |
| THS4521IDR | Single-ended-to-differential driver (not a multiplexer); 1.8 GHz GBW, but lacks integrated switching logic and SELECT pin | Requires external analog switches (e.g., TMUX6209) + op amp; higher BOM count and layout complexity | Choose THS4521IDR only when differential signaling, ultra-wide bandwidth (>500 MHz), or DC-coupled precision is mandatory |
Compared with AD8170ARZ, AD8170AR offers identical performance in non-RoHS environments, while THS4521IDR+external switch provides greater bandwidth at the cost of integration, board area, and power efficiency-making AD8170ARZ optimal for compact, cost-sensitive, single-ended video routing.
Availability
AD8170ARZ is available at Aetrix Electronics and suitable for LCD display timing controllers, professional video routers, and broadcast-grade pixel-switching applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for AD8170ARZ 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, founded in 1965 and headquartered in Wilmington, MA.
The AD8170 belongs to Analog Devices' high-speed video signal conditioning product line, engineered specifically for broadcast, medical imaging, and industrial vision systems demanding sub-10 ns switching, low distortion, and robust video specifications.
FAQ
What is the maximum operating supply voltage for AD8170ARZ?
The AD8170ARZ supports ±4 V to ±6 V dual-supply operation, with absolute maximum ratings of ±6.3 V per rail. Exceeding ±6.3 V risks permanent damage. For reliable 250 MHz bandwidth and 50 mA output drive, Analog Devices specifies operation at ±5 V - delivering ±4.0 V output swing into 1 kΩ and ±3.5 V into 150 Ω. Always use 0.1 µF ceramic + 4.7 µF tantalum bypass capacitors per supply pin.
Does AD8170ARZ support gain configuration, and how is it implemented?
Yes, AD8170ARZ supports flexible gain configuration via external resistors RF and RG connected to Pins 7 (VOUT) and 8 (–VIN). For example, using RF = RG = 499 Ω sets G = +2; RF = 1 kΩ with RG omitted yields G = +1. Gain accuracy is typically 0.4%, and channel-to-channel gain matching is 0.05%. The internal current-feedback amplifier's transresistance (400–600 kΩ) and input resistance (~100 Ω) determine achievable bandwidth versus gain tradeoffs.
What video standards does AD8170ARZ meet out-of-the-box?
AD8170ARZ meets NTSC and PAL broadcast video specifications without external compensation: 0.02% differential gain error and 0.05° differential phase error at 3.58 MHz, <0.1 dB gain flatness to 85 MHz, and –80 dB crosstalk at 5 MHz. These values are measured under RL = 150 Ω, G = +2 conditions per Analog Devices' official characterization. It is widely deployed in RGBHV, YPbPr, and composite video routing where timing integrity and color fidelity are critical.
Is AD8170ARZ pin-compatible with AD8174ARZ?
No, AD8170ARZ is not pin-compatible with AD8174ARZ. AD8170ARZ is an 8-pin SOIC device (2:1 mux), while AD8174ARZ is a 14-pin SOIC (4:1 mux) with ENABLE and SD pins. Their pinouts differ fundamentally: AD8170ARZ uses Pin 6 as SELECT and has no enable/shutdown logic; AD8174ARZ dedicates Pins 11–14 to A0, A1, ENABLE, and SD. Interchange requires PCB redesign and firmware updates to manage 2-bit address decoding.
What layout practices are essential to achieve specified 250 MHz bandwidth with AD8170ARZ?
To achieve 250 MHz bandwidth, AD8170ARZ requires strict RF layout: use a solid ground plane, place 0.1 µF ceramic + 4.7 µF tantalum bypass caps within 6 mm of each supply pin, route IN0/IN1 and VOUT as controlled-impedance microstrips (50 Ω), avoid vias near sensitive nodes, and guard input/output traces with grounded copper. Do not use sockets or wire-wrap - surface-mount 1% thin-film resistors for RF/RG are mandatory. Parasitic inductance >1 nH on feedback paths degrades peaking and stability.
AD8170ARZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Applications:
- Multiplexer with Amplifier
- Interface:
- -
- Voltage - Supply:
- ±4V ~ 6V
- Supplier Device Package:
- 8-SOIC
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
AD8170ARZ FAQ
1.How can I place an order for AD8170ARZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8170ARZ 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 AD8170ARZ reliable?
The price and inventory of AD8170ARZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8170ARZ is usually 5 days.
3.What payment methods are accepted for AD8170ARZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8170ARZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8170ARZ?
AD8170ARZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8170ARZ 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 AD8170ARZ?
For technical support, including AD8170ARZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8170ARZ requirements.
6.How does Aetrix verify that AD8170ARZ is sourced from the original manufacturer or authorized distributors?
All AD8170ARZ 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 AD8170ARZ meets industry standards.
7.What is the process for return or replacement of AD8170ARZ?
All AD8170ARZ units undergo pre-shipment inspection (PSI). If there is an issue with AD8170ARZ, 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 AD8170ARZ part is unused and in its original packaging.
Return procedure for AD8170ARZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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