MAX4815 Datasheet, PDF (1/17 Pages) Maxim Integrated Products – High-Bandwidth, T1/E1, SPST Analog Switches

19-3951; Rev 2; 1/07
High-Bandwidth, T1/E1, SPST Analog Switches
General Description
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 appli-
cations. Each MAX4815/MAX4816/MAX4817 replaces
four electromechanical relays, significantly reducing
board space, simplifying PC board routing, and reduc-
ing 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 typi-
cal on-resistance within the T1/E1 analog signal range.
This high-bandwidth (550MHz typical) family of prod-
ucts 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 tempera-
ture range.
Applications
T1/E1 Redundancy Switching
Base Stations and Base-Station Controllers
Add and Drop Multiplexers
Multiservice Provisioning Platforms
Edge Routers
Multiservice Switches (MSSs)
Digital Loop Carriers
Industrial Applications
Data Acquisition
Telecom Signal Switching
Test Equipment
Avionics
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, R_ON = 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
Pin Configurations
TOP VIEW
COM2 13
IN2 ₁₄
IN1 15
COM1 16
12 11 10 9
MAX4815
+
*EP
1
2
3
4
8 COM3
7 IN3
6 IN4
5 COM4
THIN QFN (5mm x 5mm)
*EXPOSED PADDLE CONNECTED TO V-
Pin Configurations continued at end of data sheet.
PART
MAX4815ETE+
TEMP RANGE
-40°C to +85°C
MAX4816ETE+
MAX4817ETE+
-40°C to +85°C
-40°C to +85°C
*EP = Exposed paddle.
Devices are available in lead-free packaging.
PIN-PACKAGE
16 TQFN-EP*
16 TQFN-EP*
16 TQFN-EP*
Ordering Information
CONFIGURATION
4 x SPST NC
4 x SPST NO
4 x SPST NC/NO
PKG CODE
T1655-3
T1655-3
T1655-3
________________________________________________________________ Maxim Integrated Products 1
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