MAXIM MAX4850 MAX4850H MAX4852 MAX4852H Dual SPDT Analog Switches with Over-Rail Signal Handling
Summary
These advanced components are industry-grade dual SPDT analog switches designed for complex audio and data signal routing in mobile electronics. Ideal for engineers designing headsets, cellular phones, or notebook computers, these switches offer exceptional over-rail signal handling up to 5.5V across a robust +2V to +5.5V supply range. The datasheet details low on-resistance switching (3.5Ω/7Ω), integrated comparators for features like mute detection, and compatibility with high-speed signals like USB 2.0.
Page 1 Text Content
ABRIDGED DATA SHEET /M /M /M
19-3375; Rev 0; 7/04
Dual SPDT Analog Switches with
Over-Rail Signal Handling
General Description Features
The MAX4850/MAX4850H/MAX4852/MAX4852H family USB 2.0 Full Speed (12MB) and USB 1.1 Signal of dual SPDT (single-pole/double-throw) switches oper-
Switching Compliant
ate from a single +2V to +5.5V supply and can handle
Switch Signals Greater than VCC
signals greater than the supply rail. These switches fea- ture low 3.5Ω or 3.5Ω/7Ω on-resistance with low on- 0.1ns Differential Skew capacitance, making them ideal for switching audio
3.5Ω/7Ω On-Resistance
and data signals.
135MHz -3d B Bandwidth
The MAX4850/MAX4850H are configured with two
+2V to +5.5V Supply Range
SPDT switches and feature two comparators for head- phone detection or mute/send key functions. The 1.8V Logic Compatible MAX4852 has two SPDT switches with no comparators
Low Supply Current
for low 1µA supply current.
1µA (MAX4852)
For over-rail applications, these devices offer either the
5µA (MAX4850)
pass-through or high-impedance option. For the
10µA (MAX4850H/MAX4852H)
MAX4850/MAX4852, the signal (up to 5.5V) passes
Available in a Space-Saving (3mm x 3mm),
through the switch without distortion even when the posi-
tive supply rail is exceeded. For the MAX4850H/ 16-Pin TQFN Package
MAX4852H, the switch input becomes high impedance when the input signal exceeds the supply rail. The MAX4850/MAX4850H/MAX4852/MAX4852H are
Ordering Information
available in the space-saving (3mm x 3mm), 16-pin TQFN package and operate over the extended temper-
ature range of -40°C to +85°C. PART TEMP RANGE PIN-PACKAGE
Applications
MAX4850ETE -40°C to +85°C 16 TQFN-EP* ABU USB Switching MAX4850HETE -40°C to +85°C 16 TQFN-EP* ABV MAX4852ETE -40°C to +85°C 16 TQFN-EP* ABZ
Audio-Signal Routing
MAX4852HETE -40°C to +85°C 16 TQFN-EP* ACA
Cellular Phones
*EP = Exposed paddle.
Notebook Computers
Pin Configurations and Selector Guide appear at end of
PDAs and Other Handheld Devices
data sheet.
Block Diagrams/Truth Table
MAX4850_ MAX4852_
MAX4850 MAX4852 MAX4850HNC1 MAX4852H
IN_ NO_ NC_
NC1 3.5Ω
3.5Ω COM1 OFF ON
NO1 ON OFF
IN1 NO1
7Ω IN1
SWITCHES SHOWN FOR
IN2 LOGIC 0 INPUT
NC2 3.5Ω
3.5Ω COM2
NO2 VCC
NO2 7Ω
COUT1
COUT2
Maxim Integrated Products
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.
Page Summary Contents For MAXIM MAX4850 MAX4850H MAX4852 MAX4852H Dual SPDT Analog Switches with Over-Rail Signal Handling
Manual Details
| Brand | Dual |
|---|---|
| Pages | 7 |
| File Size | 1.42 MB |
| Published | May 28, 2026 |
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Frequently Asked Questions
What are the operational voltage requirements for this device family?
The switches operate from a +2V to +5.5V single supply, allowing over-rail signal handling up to 5.5V.
Do these switches support USB data switching?
Yes, they feature low on-channel capacitance, allowing them to switch D+ and D- USB signals with guaranteed skew of less than 1ns.
How does the MAX4850 compare regarding over-rail capability?
The MAX4850 offers a pass-through option for over-rail applications where up to 5.5V signal passes through without distortion.
What physical temperature range can these switches operate in?
They are available (ETE version) for the extended temperature range of -40°C to +85°C.