MAX4717, MAX4718 4.5Ω/20Ω, 300MHz Bandwidth, Dual SPDT Analog Switches in UCSP

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The MAX4717/MAX4718 low-voltage, low on-resistance (R_ON), dual single-pole/double-throw (SPDT) analog switches operate from a single +1.8V to +5.5V supply. These devices are designed for USB 1.1 and audio switching applications.

The MAX4717 features two 4.5Ω R_ON (max) SPDT switches with 1.2Ω flatness and 0.3Ω matching between channels. The MAX4718 features one 4.5Ω R_ON (max) SPDT switch and one 20Ω R_ON (max) SPDT switch. The 20Ω switch has a guaranteed matching and flatness of 0.4Ω and 1.2Ω, respectively. These switches offer break-before-make switching (1ns) with t_ON < 80ns and t_OFF < 40ns at +2.7V. The digital logic inputs are +1.8V logic compatible with a +2.7V to +3.6V supply.

These switches are packaged in a chip-scale package (UCSP™), significantly reducing the required PC board area. The chip occupies only a 2.0mm x 1.50mm area and has a 4 x 3 bump array with a bump pitch of 0.5mm. These switches are also available in a 10-pin µMAX® package.

Key Features

Applications/Uses

USB 1.1 Signal Switching Compliant
2ns (max) Differential Skew
-3dB Bandwidth: >300MHz
Low 15pF On-Channel Capacitance
Single-Supply Operation from +1.8V to +5.5V
4.5Ω R_ON (max) Switches (MAX4717/MAX4718)
- 0.3Ω (max) R_ON Match (+3.0V Supply)
- 1.2Ω (max) Flatness (+3.0V Supply)
20Ω R_ON (max) Switch (MAX4718)
- 0.4Ω (max) R_ON Match (+3.0V Supply)
- 1.2Ω (max) Flatness (+3.0V Supply)
Rail-to-Rail Signal Handling
High Off-Isolation: -55dB (10MHz)
Low Crosstalk: -80dB (10MHz)
Low Distortion: 0.03%
+1.8V CMOS-Logic Compatible
<0.5nA Leakage Current at +25°C

	Audio/Video Signal Routing
	Battery-Operated Equipment
	Cell Phones
	Headphone Switching
	Low-Voltage Data-Acquisition Systems
	PDAs
	Sample-and-Hold Circuits
	USB 1.1 Signal Switching Circuits

Key Specifications: Switches and Multiplexers (Low Voltage)

Part Number

Configuration

Number of Channels

V_SUPPLY, Single (min) (V)

V_SUPPLY, Single (max) (V)

R_ON (max) (Ω)

Bandwidth (MHz)

I_{L (OFF)} (max) (nA)

t_ON (max) (nS)

t_OFF (max) (nS)

Q_INJECTION (pC)

C_ON (pF)

C_OFF (pF)

Features

V_ISO, Off-Isolation (dB)

V_CT, Crosstalk (dB)

ΔR_ON (max) (Ω)

R_FLAT(ON) (max) (Ω)

Redundancy Switch

RoHS Available

Package

Price^**

MAX4717

SPDT

1.8

5.5

4.5

300

0.5

•	1.8V Logic Compatible

•	USB Certified

110

0.3

1.2

Yes

THIN QFN (Dual)/10
UCSP/0
UCSP/10
uMAX/10

$0.90 @ 1k

MAX4718

SPST

UCSP/10
uMAX/10

$0.90 @ 1k

See All Switches and Multiplexers (Low Voltage) (127)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.