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MAX4851, MAX4851H, MAX4853, MAX4853H
3.5Ω/7Ω Quad SPST Switches with Over-Rail Signal Handling
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Status
Active: In Production.
Description
The MAX4851/MAX4851H/MAX4853/MAX4853H family of quad single-pole/single-throw (SPST) switches operates from a single +2V to +5.5V supply and can handle signals greater than the supply rail. These switches feature low 3.5Ω on-resistance with 40pF on-capacitance or 7Ω on-resistance with 30pF on-capacitance, making them ideal for switching audio and data signals.
The MAX4851/MAX4851H are configured with four SPST switches and feature a comparator for headphone detection or mute/send key functions. The MAX4853/MAX4853H have four SPST switches but do not include a comparator.
For over-rail applications, these devices offer either the pass-through or high-impedance option. For the MAX4851/MAX4853, signals greater than the positive supply (up to 5.5V) pass through the switch without distortion. For the MAX4851H/MAX4853H, the switch input becomes high impedance when the input signal exceeds the supply rail.
The MAX4851/MAX4851H/MAX4853/MAX4853H are available in the space-saving, 16-pin, 3mm x 3mm thin QFN package and operate over the -40°C to +85°C
extended temperature range.
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Data Sheet
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Key Features
- USB 2.0 Full Speed (12Mbps) and USB 1.1 Signal Switching
- Switch Signals Greater than VCC
- +2V to +5.5V Supply Range
- 3.5Ω/7Ω On-Resistance
- 30pF On-Capacitance (7Ω Switch)
- 150MHz -3dB Bandwidth
- 1.8V Logic Compatibility
- Low Supply Current
- 0.01µA (MAX4853)
- 5µA (MAX4851)
- 10µA (MAX4851H/MAX4853H)
- Low 0.01nA Leakage Current
- Available in a Space-Saving 3mm x 3mm, 16-Pin TQFN Package
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Applications/Uses
- Audio Signal Routing
- Cell Phones
- Notebook Computers
- PDAs and Other Handheld Devices
- USB Switching
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Key Specifications:
| Switches and Multiplexers (Low Voltage) |
| Part Number |
Config. |
Channels |
VSUPPLY (Single)
(V) |
VSUPPLY (Single)
(V) |
VSIGNAL
(V) |
VSIGNAL
(V) |
Dynamic Range (max)
(V) |
RON
(Ω) |
RFLAT(ON) |
BW
(MHz) |
IL(OFF)
(nA) |
tON
(ns) |
tOFF
(ns) |
CON
(pF) |
COFF
(pF) |
Budgetary Price |
| min |
max |
min |
max |
max |
max |
typ |
max |
min |
max |
max |
max |
See Notes |
| MAX4851 |
SPST |
4 |
2 |
5.5 |
0 |
5.5 |
5.5 |
5 |
1.2 |
135 |
10 |
100 |
60 |
30 |
13 |
- |
| MAX4851H |
- |
| MAX4853 |
- |
| MAX4853H |
- |
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See All Switches and Multiplexers (Low Voltage) (186)
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Pricing 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.
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Diagram
Block Diagram
More Information
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Information Index
Document Ref.: 19-3471
Rev 0;
2004-11-05
This page last modified: 2009-11-30
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