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Data Sheet

FULL DATA SHEET (PDF, 1.3MB) Download   E-Mail

Description

The MAX4818/MAX4819 high-bandwidth, low-on-resistance analog dual SPDT switches/4:1 multiplexers are designed to serve as integrated T1/E1 protection switches for 1+1 and N+1 line-card redundancy applications. Each MAX4818/MAX4819 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 4Ω typical on-resistance within the T1/E1 analog signal range. This high-bandwidth family of products is optimized for low return loss and matched pulse template performance in T1/E1 long-haul and short-haul applications. The MAX4818/MAX4819 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.

Key Features		Applications/Uses
Dual SPDT and 4:1 Multiplexer 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 = 4Ω (typ) and 6Ω (max) Over 350MHz -3dB Signal Bandwidth (MAX4818) Excellent Crosstalk and Off-Isolation Performance Over the T1/E1 Signal Spectrum: Over 110dB Crosstalk Attenuation at 1MHz (MAX4818) Low Current Consumption of 2mA (max) -40°C to +85°C Extended Temperature Range Space-Saving, 16-Pin, 5mm x 5mm Thin QFN SET Controls All Switches Simultaneously For Redundancy Switching (MAX4819)		Add/Drop Multiplexers Avionics Base Stations and Base-Station Controllers Data Acquisition Digital Loop Carriers Edge Routers Industrial Applications Multi-Service Provisioning Platforms Multi-Service-Switches (MSSs) T1/E1 Redundancy Switching Telecom Signal Switching Test Equipment

Diagram

Typical Operating Circuit

Evaluation Kits

none

Design Guides

Mux & Switch (PDF)

Reliability Reports

Show FIT data for: MAX4818 MAX4819 Request Reliability Report for: MAX4818 MAX4819

Software/Models

none

Ordering Information
Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices: 1-6 of 6
MAX4818	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4818ETE+			TQFN;16 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0073 (PDF) Use pkgcode/variation: T1655+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4818ETE+T			Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4818ETE-T			Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4818ETE			TQFN;16 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0073 (PDF) Use pkgcode/variation: T1655-3*	-40°C to +85°C	See data sheet Materials Analysis
MAX4819	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4819ETE-T			Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4819ETE			TQFN;16 pin;26 mm² Outline Drawing: 21-0140 (PDF) Land Pattern: 90-0073 (PDF) Use pkgcode/variation: T1655-3*	-40°C to +85°C	See data sheet Materials Analysis

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