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MAX301, MAX303, MAX305
Precision, Dual, High-Speed Analog Switches
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Status
Active: In Production.
Description
The MAX301/MAX303/MAX305 are precision, dual, highspeed
analog switches. The single-pole single-throw
(SPST) MAX301 and double-pole single-throw (DPST)
MAX305 dualswitches are normally open (NO). The single-pole double-throw (SPDT) MAX303 has two NO and two normally closed (NC) poles. All three parts offer low
on resistance (less than 35Ω), guaranteed to match to
within 2Ω between channels and to remain flat over the
full analog signal range (Δ3Ω max). They also offer low leakage
(less than 250pA at +25°C and less than 6nA at
+85°C) and fast switching (turn-on time less than 150ns
and turn-off time less than 100ns).
The MAX301/MAX303/MAX305 are fabricated with
Maxim's new improved silicon-gate process for high
system accuracy. Design improvements guarantee
extremely low charge injection (15pC) and low power
consumption (35µW). A 44V maximum breakdown voltage
allows rail-to-rail analog signal capability.
These monolithic switches operate with a single positive
supply (+10V to +30V) or with split supplies (±4.5V
to ±20V) while retaining CMOS-logic input compatibility
and fast switching. CMOS inputs provide reduced input
loading.
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Data Sheet
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Key Features
- Low On-Resistance < 22Ω Typical (35Ω Max)
- Guaranteed Matched On-Resistance Between Channels < 2Ω
- Guaranteed Flat On-Resistance over Full Analog Signal Range Δ3Ω Max
- Guaranteed Charge Injection < 15pC
- Guaranteed Off-Channel Leakage < 6nA at +85°C
- Single-Supply Operation (+10V to +30V)
- Bipolar-Supply Operation (±4.5V to ±20V)
- TTL-/CMOS-Logic Compatible
- Rail-to-Rail Analog Signal Handling Capability
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Applications/Uses
- Battery-Powered Applications
- Communication Systems
- Guidance and Control Systems
- Heads-Up Displays
- Military Radios
- PBX, PABX
- Sample-and-Hold Circuits
- Test Equipment
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Key Specifications:
| Switches and Multiplexers (Mid Voltage) |
| Part Number |
Functions |
Config. |
Channels |
Normal Position |
VSUPPLY (Single)
(V) |
VSUPPLY (Single)
(V) |
VSUPPLY (Dual)
(±V) |
VSUPPLY (Dual)
(±V) |
RON
(Ω) |
IL(OFF)
(nA) |
tON
(ns) |
tOFF
(ns) |
QINJECTION
(pC) |
CON
(pF) |
COFF
(pF) |
Budgetary Price |
| min |
max |
min |
max |
max |
max |
min |
max |
max |
max |
See Notes |
| MAX301 |
Switch |
SPST |
2 |
Open |
10 |
30 |
4.5 |
20 |
35 |
0.25 |
150 |
100 |
15 |
39 |
12 |
$2.03 @1k |
| MAX303 |
SPDT |
Open/Closed |
$4.27 @1k |
| MAX305 |
DPST |
Open |
$4.27 @1k |
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See All Switches and Multiplexers (Mid Voltage) (302)
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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
Notes and Comments
Improved DG401, low RON match and flatness (MAX301)
Improved DG403, low RON match and flatness (MAX303)
Improved DG405, low RON match and flatness (MAX305)
Didn't Find What You Need?
Information Index
Document Ref.: 19-0159
Rev 1;
2007-07-30
This page last modified: 2009-11-10
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