MAX22344CAAP+ by Analog Devices

Reinforced, Fast, Low-Power, Four-Channel 3.75kVRMS Digital Isolators


The MAX22344–MAX22346 are reinforced, fast, low-power, 4-channel digital galvanic isolators using Maxim’s proprietary process technology. These devices transferdigital signals between circuits with different power domains, using as little as 0.74mW per channel at 1Mbps (1.8V supply). All of the devices in the family feature reinforced isolation for a withstand voltage rating of 3.75kVRMS for 60 seconds. The MAX22344–MAX22346 family offers all possible unidirectional channel configurations to accommodate any 4-channel design, including SPI, RS-485, and digital I/O applications. Output enable for the A side of the MAX22345R/S is active-low, making them ideal for isolating a port on a shared SPI bus since the active-low CS signal can directly enable the MISO signal on the isolator. All other output enables in the MAX22344–MAX22346 family are the traditional active-high. Devices are available with a maximum data rate of either 25Mbps or 200Mbps, and feature a selectable default state for the outputs. The default is the state the output assumes when the input is either not powered or is open-circuit. See the Ordering Information and Product Selector Guide for suffixes associated with each option. Independent 1.71V to 5.5V supplies on each side of the isolator also make the devices suitable for use as level translators. All of the devices in the MAX22344–MAX22346 family are available in a 20-pin SSOP package with 5.5mm of creepage and clearance. The package material has a minimum comparative tracking index (CTI) of 400V, which gives it a group II rating in creepage tables. All devices are rated for operation at ambient temperatures of -40°C to +125°C.

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Features

Reinforced Galvanic Isolation for Fast Digital Signals Up to 200Mbps Maximum Data Rate Withstands 3.75kVRMS for 60s (VISO) Continuously Withstands 784VRMS (VIOWM) Withstands ±10kV Surge Between GNDA and GNDB with 1.2/50μs Waveform High CMTI (50kV/μs, Typical)
Up to 200Mbps Maximum Data Rate
Withstands 3.75kVRMS for 60s (VISO)
Continuously Withstands 784VRMS (VIOWM)
Withstands ±10kV Surge Between GNDA and GNDB with 1.2/50μs Waveform
High CMTI (50kV/μs, Typical)
Low Power Consumption 0.74mW per Channel at 1Mbps with VDD = 1.8V 1.4mW per Channel at 1Mbps with VDD = 3.3V 3.2mW per Channel at 100Mbps with VDD = 1.8V
0.74mW per Channel at 1Mbps with VDD = 1.8V
1.4mW per Channel at 1Mbps with VDD = 3.3V
3.2mW per Channel at 100Mbps with VDD = 1.8V
Options to Support a Broad Range of Applications 2 Maximum Data Rates (200Mbps, 25Mbps) 3 Direction Configurations Active-High or Active-Low Enable Inputs Pin-Selectable Output Default States (High/Low)
2 Maximum Data Rates (200Mbps, 25Mbps)
3 Direction Configurations
Active-High or Active-Low Enable Inputs
Pin-Selectable Output Default States (High/Low)

Specifications

# Channels 4
Insulation Rating 3750VRMS
# Uni-directional Inputs (Side A) 4
Uni-directional Data Rate (Mbps) (max) 200
Isolation Barrier Dual (Reinforced)
Oper. Temp. (°C) -40 to +125
Package/Pins See Data Sheet


MAX22344CAAP+ Maxim Integrated Parts by Analog Devices

DIGITAL ISOLATOR 4CH -40 TO 125DEG C

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

No. of Channels 4 Channel
Propagation Delay 5.7ns
Supply Voltage Min 1.71V
Supply Voltage Max 5.5V
Interface Case Style SSOP
No. of Pins 20Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2019)

Alternative Descriptions

Four Channel, Low Power, High | Analog Devices
Digital Isolator, 4Ch, -40 To 125Deg C | Newark Electronics
DIGITAL ISOLATOR, 4CH, -40 TO 125DEG C | element14

Frequently Asked Questions

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Is the MAX22344CAAP+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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