MAX4817
High-Bandwidth, T1/E1, SPST Analog Switches
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Relay Replacement for T1/E1 Redundancy Applications
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Features
- Quad-SPST NO, NC, and NC/NO Configurations
- Dual-Supply Operation from ±3.3V to ±5V
- Single-Supply Operation from +6V to +11V
- Hot Insertion Tolerant with No DC Path to the Supplies
- Low On-Resistance, RON = 3.7Ω (typ) and 6Ω (max)
- Over 550MHz, -3dB Signal Bandwidth
- Excellent Crosstalk and Off-Isolation Performance Over the T1/E1 Signal Spectrum: 110dB Crosstalk Attenuation at 1MHz
- Low Current Consumption of 2mA (max)
- -40°C to +85°C Extended Temperature Range
- Space-Saving, 16-Pin, 5mm x 5mm Thin QFN
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The MAX4815/MAX4816/MAX4817 high-bandwidth, low-on-resistance, quad-SPST analog switches are designed to serve as integrated T1/E1 protection switches for 1+1 and N+1 line-card redundancy applications. Each MAX4815/MAX4816/MAX4817 replaces four electromechanical relays, significantly reducing board space, simplifying PC board routing, and reducing power consumption. These devices operate with ±3.3V or ±5V dual supplies for applications requiring T1/E1 signal switching in the line side of the interface transformer. Internal voltage multipliers drive the analog switches, yielding excellent linearity and low 3.7Ω typical on-resistance within the T1/E1 analog signal range. This high-bandwidth (550MHz typical) family of products is optimized for low return loss and matched pulse template performance in T1/E1 long-haul and short-haul applications.
The MAX4815/MAX4816/MAX4817 are available in a tiny 16-pin, 5mm x 5mm, thin QFN package and are specified over the extended -40°C to +85°C temperature range.
Applications
- Add/Drop Multiplexers
- Avionics
- Base Stations and Base-Station Controllers
- Data Acquisition
- Digital Loop Carriers
- Edge Routers
- Industrial Applications
- Multiservice Provisioning Platforms
- Multiservice Switches (MSSs)
- T1/E1 Redundancy Switching
- Telecom Signal Switching
- Test Equipment
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MAX4817
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