Maxim > Products > Analog Switches and Multiplexers > MAX4644

MAX4644

High-Speed, Low-Voltage, 4Ω, Dual, SPDT CMOS Analog Switch

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX4644 is a single-pole/double-throw (SPDT) switch that operates from a single supply ranging from +1.8V to +5.5V. It provides low 4Ω on-resistance (R_ON) as well as 1Ω R_ON flatness over the entire analog-signal range. The MAX4644 offers fast switching times of less than 20ns while ensuring break-before-make operation. It typically consumes only 0.01µW of quiescent power, making it suitable for use in low-power, portable applications.

The MAX4644's features include low leakage currents over the entire temperature range, TTL/CMOS-compatible digital logic, and excellent AC characteristics. It is packaged in either a small 8-pin µMAX® or a tiny 6-pin SOT23.

Data Sheet

Download	Rev 1	(PDF, 112kB)
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Key Features

+1.8V to +5.5V Single-Supply Operation
Rail-to-Rail Analog-Signal Range
Guaranteed R_ON
- 4Ω max (+5V Supply)
- 8Ω max (+3V Supply)
+1.8V Operation
- R_ON 30Ω (typ) Over Temperature
- t_ON 18ns (typ), t_OFF 12ns typ
Guaranteed R_ON Flatness: 0.75Ω (typ) (+5V Supply)
Guaranteed R_ON Match Between Channels: 0.1Ω typ (+5V Supply)
Low Leakage (< 0.35nA) Over Entire Temperature Range
Excellent AC Characteristics
- Low Crosstalk: -82dB at 1MHz
- High Off-Isolation: -80dB at 1MHz
- 0.018% Total Harmonic Distortion
Low Power Consumption: < 0.01µW

Applications/Uses

Audio/Video Signal Routing
Battery-Powered Applications
Communication Systems
Low-Voltage Data Acquisition
Sample-and-Hold Circuits

Key Specifications:

Switches and Multiplexers (Low Voltage)

Part Number

Config.

Channels

V_SUPPLY (Single)
(V)

V_SIGNAL
(V)

Dynamic Range (max)
(V)

R_ON
(Ω)

R_FLAT(ON)
(Ω)

I_L(OFF)
(nA)

t_ON
(ns)

t_OFF
(ns)

Q_INJECTION
(pC)

C_ON
(pF)

C_OFF
(pF)

Budgetary Price

min

max

min

max

typ

max

min

max

See Notes

MAX4644

2:1

SPDT

1.8

5.5

0.75

0.25

$0.81 @1k

See All Switches and Multiplexers (Low Voltage) (186)

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.

Diagram

Pin Configurations/Functional Diagrams/Truth Table

More Information

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