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MAX4641, MAX4642, MAX4643
High-Speed, Low-Voltage, 4 Ohm, Dual SPST CMOS Analog Switches
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Status
Active: In Production.
Description
The MAX4641/MAX4642/MAX4643 are monolithic, dual, single-pole/single-throw (SPST) switches that can operate from a single supply ranging from +1.8V to +5.5V. The MAX4641/MAX4642/MAX4643 provide low 4Ω on-resistance (RON), 0.6Ω RON matching between channels, and 1Ω RON flatness over the entire analog signal range. These devices offer fast switching times of less than 20ns while consuming less than 0.01µW of quiescent power.
The MAX4641 has two normally open (NO) switches, and the MAX4642 has two normally closed (NC) switches. The MAX4643 has one NO switch and one NC switch. All three devices have low 0.35nA leakage currents over the entire temperature range. The MAX4641/MAX4642/MAX4643 are available in small 8-pin µMAX® and 8-pin QFN packages.
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Data Sheet
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Key Features
- +1.8V to +5.5V Single-Supply Operation
- Rail-to-Rail Analog Signal Range
- Guaranteed RON
- 4Ω max (+5V supply)
- 8Ω max (+3V supply)
- +1.8V Operation
- RON 30Ω typ Over Temperature
- tON 18ns typ, tOFF 12ns typ
- Guaranteed RON Flatness: 1Ω (+5V supply)
- Guaranteed RON Match Between Channels
- Low Leakage (<0.35nA) Over Entire Temperature Range
- Excellent AC Characteristics
- Low Crosstalk: -97dB at 1MHz
- High Off-Isolation: -80dB at 1MHz
- 0.018% Total Harmonic Distortion
- Low Power Consumption: < 0.01µW
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Applications/Uses
- Audio/Video Signal Routing
- Battery-Powered Applications
- Communication Systems
- Low-Voltage Data Acquisition
- Sample-and-Hold Circuits
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Key Specifications:
| Switches and Multiplexers (Low Voltage) |
| Part Number |
Config. |
Channels |
Normal Position |
VSUPPLY (Single)
(V) |
VSUPPLY (Single)
(V) |
VSIGNAL
(V) |
VSIGNAL
(V) |
Dynamic Range (max)
(V) |
RON
(Ω) |
RFLAT(ON)
(Ω) |
RFLAT(ON)
(Ω) |
IL(OFF)
(nA) |
tON
(ns) |
tOFF
(ns) |
QINJECTION
(pC) |
CON
(pF) |
COFF
(pF) |
Budgetary Price |
| min |
max |
min |
max |
max |
max |
typ |
max |
max |
min |
max |
max |
max |
See Notes |
| MAX4641 |
SPST |
2 |
Open |
1.8 |
5.5 |
0 |
5.5 |
5.5 |
4 |
0.85 |
1 |
0.25 |
15 |
8 |
2 |
18 |
7 |
$0.88 @1k |
| MAX4642 |
Closed |
$0.88 @1k |
| MAX4643 |
Open/Closed |
$0.85 @1k |
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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
Pin Configuration
More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-1656
Rev 1;
2002-03-21
This page last modified: 2009-10-27
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