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MAX4818 Dataheets PDF



Part Number MAX4818
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description High-Bandwidth T1/E1 Dual-SPDT Switches/4:1 Muxes
Datasheet MAX4818 DatasheetMAX4818 Datasheet (PDF)

www.DataSheet4U.com 19-3915; Rev 1; 1/07 High-Bandwidth T1/E1 Dual-SPDT Switches/ 4:1 Muxes General 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 oper.

  MAX4818   MAX4818


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www.DataSheet4U.com 19-3915; Rev 1; 1/07 High-Bandwidth T1/E1 Dual-SPDT Switches/ 4:1 Muxes General 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. Features ♦ 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) MAX4818/MAX4819 Applications T1/E1 Redundancy Switching Base Stations and Base-Station Controllers Add and Drop Multiplexers Pin Configurations NC1 V+ TOP VIEW NC2 9 N.C. 10 Multi-Service Provisioning Platforms Edge Routers Multi-Service-Switches (MSSs) Digital Loop Carriers Industrial Applications Data Acquisition Telecom Signal Switching Test Equipment Avionics 12 11 COM1 IN1 SET N.C. 13 14 8 7 COM2 IN2 EN N.C. MAX4818 15 16 6 + *EP 5 1 NO1 2 V- 3 GND 4 NO2 THIN QFN (5mm x 5mm) *EXPOSED PADDLE CONNECTED TO V- Pin Configurations continued at end of data sheet. Ordering Information PART MAX4818ETE+ MAX4819ETE+ TEMP RANGE -40°C to +85°C -40°C to +85°C PIN-PACKAGE 16 TQFN-EP* 16 TQFN-EP* CONFIGURATION 2 x SPDT 4:1 MUX PACKAGE CODE T1655-3 T1655-3 *EP = Exposed Paddle Devices are available in lead-free packages. ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. High-Bandwidth T1/E1 Dual-SPDT Switches/ 4:1 Muxes MAX4818/MAX4819 ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND unless otherwise noted.) V+ ............................................................................-0.3V to +6V V- .............................................................................-6V to +0.3V V+ to V-...................................................................-0.3V to +12V IN_, A0, A1, SET, EN ....................................-0.3V to (V+) + 0.3V NO_, NC_, COM_ ....................................................-12V to +12V NO_, to COM_, NC_ to COM_ .................................-18V to +18V Continuous Current (NO_, NC_, COM_) ....................... ±100mA Continuous Current (Any Other Terminal) ........................±30mA Peak Current (NO_, NC_, COM_) (pulsed at 1ms, 10% duty cycle).................................±300mA Continuous Power Dissipation (TA = +70°C) 16-Pin Thin QFN 5mm x 5mm (derate 33.3mW/°C above TA = +70°C) ....................................................2667mW Operating Temperature Range ......................... -40°C to +85°C Storage Temperature Range ........................... -65°C to +150°C Junction Temperature .....................................................+150°C Lead Temperature (soldering, 10s) ............................... +300°C Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS—Dual ±3.3V Supplies (V+ = +3.3V ±10%, V- = -3.3V ±10%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) PARAMETER ANALOG SWITCH Fault-Free Analog Signal Range VCOM_ VNO_ VNC_ V+ = +3V, V- = -3V, ICOM_ = 30mA, VNO_ or VNC_ = +3V (Note 2) V+ = +3V, V- = -3V, ICOM_ = 30mA, VNO_ or VNC_ = +3V (Note 2) V+ = +3V, V- = -3V, ICOM_ = 30mA, VNO_ or VNC_ = +3V (Notes 2, 3) V+ = .


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