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Analog Devices Inc. AD8170ARZ-R7
- Part No.:
- AD8170ARZ-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Specialized
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD8170ARZ-R7.pdf
- Description:
- IC INTERFACE SPECIALIZED 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,115
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Product details
Overview
AD8170ARZ-R7 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 serves as a precision analog signal selector in pixel-switching and LCD display timing paths.
For engineers reviewing the AD8170ARZ-R7 datasheet, AD8170ARZ-R7 pinout, AD8170ARZ-R7 application, or AD8170ARZ-R7 equivalent, key selection criteria include differential gain error (0.02%), crosstalk (–80 dB @ 5 MHz), gain flatness (0.1 dB to 85 MHz), and SOIC-8 package compatibility with high-density video routing layouts.
Technical Context
The AD8170ARZ-R7 integrates complementary bipolar input switches with a current-feedback output amplifier, enabling sub-10 ns switching via current-steering logic and maintaining low glitch (138 mVp-p) through base-clamped transistor turn-off. Its transresistance is 400–600 kΩ, and open-loop voltage gain ranges from 2000 to 6000 V/V.
Gain is set externally via resistor networks (e.g., RF = RG = 499 Ω for G = +2); bandwidth scales inversely with feedback network impedance. Input resistance is 1.7 MΩ at the switch node and 100 Ω at the inverting buffer input, supporting stable operation with 50 Ω or 75 Ω source/load impedances.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| –3 dB Bandwidth | 250 MHz at G = +2, RL = 100 Ω - supports full HD video signal integrity without roll-off |
| Channel Switching Time | 7.5 ns (10% settling) - enables pixel-level switching in "picture-in-picture" architectures |
| Differential Gain Error | 0.02% @ 3.58 MHz - preserves color fidelity in composite video systems |
| Crosstalk | –80 dB @ 5 MHz - prevents interference between adjacent video channels |
| Output Drive Current | 50 mA - drives 150 Ω video loads or multiple 75 Ω cables in parallel |
| Quiescent Current | 9.7 mA @ ±5 V - enables low-power operation in always-on display subsystems |
| Input Voltage Range | ±3.3 V - compatible with standard ±5 V supplies while avoiding rail saturation |
Pinout & Package
AD8170ARZ-R7 is housed in an 8-lead narrow-body SOIC (SO-8) package with standard JEDEC MS-012AC footprint, 1.27 mm pitch, and exposed pad not present. Thermal resistance θJA = 160°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN0) | Noninverting input of Channel 0 | Accepts analog video signal; high-impedance (1.7 MΩ) switch node |
| 2 (IN1) | Noninverting input of Channel 1 | Second analog video source; identical electrical characteristics to Pin 1 |
| 3 (SELECT) | Digital control input (TTL/CMOS) | Logic 0 selects IN0; Logic 1 selects IN1; 0.8 V / 2.0 V thresholds |
| 4 (GND) | Analog and digital ground reference | Single ground plane required; decoupling capacitors must connect here |
| 5 (–VS) | Negative supply rail | Accepts –4 V to –6 V; PSRR = 52–58 dB up to 10 MHz |
| 6 (VOUT) | Amplified, buffered output | Current-feedback architecture delivers 50 mA into 10 Ω load |
| 7 (+VS) | Positive supply rail | Accepts +4 V to +6 V; PSRR = 58–66 dB up to 10 MHz |
| 8 (–VIN) | Inverting input of internal amplifier | 100 Ω input resistance; connects to external feedback network (e.g., RG) |
Key Features
| Feature | Design Value |
|---|---|
| Fully buffered inputs and outputs | Eliminates loading effects on upstream sources and downstream loads during channel switching |
| Internal current-feedback amplifier | Enables wide bandwidth (250 MHz) independent of closed-loop gain setting |
| Flexible gain via external resistors | Supports G = +1 to +20 using standard 1% thin-film resistors; gain matching < 0.05% |
| Low differential phase error | 0.05° @ 3.58 MHz - maintains sync pulse timing accuracy in NTSC/PAL systems |
| High disable isolation | Not applicable - AD8170 lacks ENABLE/SD pins; only AD8174 supports disable/shutdown |
Applications
| Pixel Switching for Picture-in-Picture | LCD Display Timing Control |
|---|---|
Use Scenario: Selecting between main and inset video streams in real-time without visible artifacts. IC Role / Device Role / Timing Role: High-speed analog multiplexer routing RGB or YUV signals to dual display pipelines. Use Value: 10 ns switching and 0.02% differential gain ensure seamless transitions and color consistency across picture zones. |
Use Scenario: Routing timing-critical clock or sync signals to column/row drivers in active-matrix LCD panels. IC Role / Device Role / Timing Role: Buffered signal selector delivering low-jitter, rail-to-rail swing to gate driver ICs. Use Value: ±4.0 V output swing into 1 kΩ and 15 ns settling to 0.1% preserve edge integrity for precise pixel addressing. |
| Video Router Backplane Interface | Plasma Display Subframe Multiplexing |
Use Scenario: Aggregating multiple camera feeds onto a shared video bus in broadcast equipment. IC Role / Device Role / Timing Role: Low-crosstalk (–80 dB @ 5 MHz) analog switch isolating inactive sources from active signal path. Use Value: Prevents ghosting or bleed-through between concurrent video channels under multi-source load conditions. |
Use Scenario: Distributing subframe data across plasma panel segments during field-sequential driving. IC Role / Device Role / Timing Role: Fast-settling multiplexer synchronizing high-frequency video bursts to sustain luminance uniformity. Use Value: 1000 V/µs slew rate and 250 MHz bandwidth maintain pulse fidelity across 100+ kHz subframe rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 2:1 high-speed video multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8170ARZ | Same die, tape-and-reel vs. cut-tape packaging; identical electrical specs and SOIC-8 footprint | No functional difference; used interchangeably where reel feed is required for SMT line efficiency | Select AD8170ARZ-R7 for automated placement; AD8170ARZ for manual prototyping or small-batch use |
| THS4521IDR | Single-ended-to-differential driver (not multiplexer); no SELECT logic; 2-GHz GBW but no integrated switching | Requires external analog switches and level-shifting; suited for differential signaling, not channel selection | Choose only if system already uses differential signaling and discrete switch control; not drop-in replacement |
Compared with AD8170ARZ-R7, AD8170ARZ offers identical performance in cut-tape form, while THS4521IDR provides higher bandwidth but lacks integrated multiplexing logic-making it unsuitable for direct substitution in pixel-switching or video-router designs requiring native 2:1 selection.
Availability
AD8170ARZ-R7 is available at Aetrix Electronics and suitable for LCD display timing control, video router backplane interfaces, and plasma display subframe multiplexing requiring stable component supply, long-term industrial lifecycle support, and traceable sourcing.
Supply support for AD8170ARZ-R7 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 DSP technologies, serving precision instrumentation, communications, and industrial markets since 1965.
The AD8170 belongs to Analog Devices' high-speed video signal conditioning product line, engineered specifically for broadcast, medical imaging, and professional display systems demanding sub-10 ns switching and broadcast-grade video fidelity.
FAQ
What is the maximum operating supply voltage for AD8170ARZ-R7?
The AD8170ARZ-R7 supports ±4 V to ±6 V dual supplies, with absolute maximum ratings of ±6.3 V per rail. Operation beyond ±6 V risks permanent damage. At ±5 V, quiescent current is 9.7 mA typical, and output swing reaches ±4.0 V into 1 kΩ - making ±5 V the recommended nominal supply for optimal video performance and thermal margin in the AD8170ARZ-R7.
Does AD8170ARZ-R7 support shutdown or output disable functionality?
No, AD8170ARZ-R7 does not include ENABLE or SD pins. Unlike the AD8174, the AD8170 is a fixed 2:1 multiplexer with no power-down or high-impedance output mode. All channels draw current continuously when powered. For systems requiring dynamic power gating, the AD8174ARZ-R7 (4:1 with SD/ENABLE) or external FET-based enable circuitry must be used instead of the AD8170ARZ-R7.
What external resistors are required to configure AD8170ARZ-R7 for G = +2 operation?
To configure AD8170ARZ-R7 for G = +2, use RF = RG = 499 Ω (1% metal film). This network yields 250 MHz small-signal bandwidth and 0.1 dB flatness to 85 MHz. The resistors connect between VOUT (Pin 6) and –VIN (Pin 8) for RF, and between –VIN (Pin 8) and GND (Pin 4) for RG. Layout must minimize parasitic capacitance - critical for preserving AD8170ARZ-R7's high-frequency response.
Can AD8170ARZ-R7 drive a 75 Ω video load directly?
Yes, AD8170ARZ-R7 can drive a 75 Ω load, delivering ±3.5 V minimum swing at ±5 V supply. However, for optimal video performance (e.g., < 0.1 dB gain flatness), a series 25 Ω resistor is recommended between VOUT and the 75 Ω load to match characteristic impedance and suppress reflections - especially over traces > 2 inches. This termination preserves AD8170ARZ-R7's 15 ns 0.1% settling and minimizes overshoot.
Is AD8170ARZ-R7 pin-compatible with earlier AD8170 variants like AD8170AN or AD8170AR?
Yes, AD8170ARZ-R7 shares identical pinout, footprint, and electrical specifications with AD8170AR (SOIC-8) and AD8170AN (PDIP-8). The "Z" suffix denotes lead-free/RoHS-compliant construction; "R7" indicates 7-inch tape-and-reel packaging. No PCB layout changes are needed when upgrading from AD8170AR to AD8170ARZ-R7 - all timing, gain, and drive characteristics remain fully consistent across these AD8170ARZ-R7 variants.
AD8170ARZ-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-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:
- 8-SOIC
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
AD8170ARZ-R7 FAQ
1.How can I place an order for AD8170ARZ-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8170ARZ-R7 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-R7 reliable?
The price and inventory of AD8170ARZ-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8170ARZ-R7 is usually 5 days.
3.What payment methods are accepted for AD8170ARZ-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8170ARZ-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8170ARZ-R7?
AD8170ARZ-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8170ARZ-R7 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-R7?
For technical support, including AD8170ARZ-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8170ARZ-R7 requirements.
6.How does Aetrix verify that AD8170ARZ-R7 is sourced from the original manufacturer or authorized distributors?
All AD8170ARZ-R7 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-R7 meets industry standards.
7.What is the process for return or replacement of AD8170ARZ-R7?
All AD8170ARZ-R7 units undergo pre-shipment inspection (PSI). If there is an issue with AD8170ARZ-R7, 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-R7 part is unused and in its original packaging.
Return procedure for AD8170ARZ-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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