19-0613; Rev 2; 3/09
High-/Full-Speed USB 2.0 Switches
with High ESD
The MAX4906EF are electrostatic discharge (ESD)-pro-
tected analog switches that combine low on-capacitance
(CON) and low on-resistance (RON) necessary for high-
performance switching applications. The COM_ inputs
are protected against ±15kV ESD without latchup or dam-
age. The device is designed for USB 2.0 high-speed
applications at 480Mbps. The switches also handle all the
requirements for USB low- and full-speed signaling.
The MAX4906EF features two single-pole/double-throw
(SPDT) switches. The device is fully specified to operate
from a single +2.7V to +3.6V power supply and is protect-
ed against a +5.5V short to all analog inputs (COM_, NC_,
NO_). This feature makes the MAX4906EF fully compliant
with the USB 2.0 specification of +5.5V fault protection.
The device features a low threshold voltage and a +1.4V
VIH, permitting them to be used with low-voltage logic.
The device features a QP input that when driven high,
turns the charge pump off and sets the device in standby
mode. When the device is in standby mode, the quies-
cent supply current is reduced to 3µA (max) and the
switches remain operable.
The MAX4906EF is available in a space-saving, 2mm x
2mm µDFN package and operates over a -40°C to +85°C
Digital Still Cameras
T3/E3 Switches for
♦ ±15kV (Human Body Model) ESD Protection,
♦ Fully Specified for a Single +2.7V to +3.6V
♦ Low 4Ω (typ), 7Ω (max) On-Resistance (RON)
♦ -3dB Bandwidth: 500MHz (typ)
♦ Low Bit-to-Bit Skew ≤ 20ps
♦ Charge-Pump Noise = 90µV (typ)
♦ Charge-Pump Enable
♦ No Need for Logic-Level Shifters for 1.4V or
♦ COM_ Analog Inputs Fault-Protected Against
Shorts to USB Supply Rail Up to +5.5V
♦ Low Supply Current 3µA (max) in Standby
♦ Space-Saving 10-Pin, 2mm x 2mm µDFN Package
MAX4906EFELB+T -40°C to +85°C 10 μDFN AAJ
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Typical Operating Characteristics
V+ = 3.3V
IBIAS = 9mA
UI = 2.08ns
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.