MAX22191AUT+ by Analog Devices

Ultra-Low-Power, Parasitically Powered Digital Input


The MAX22191 is an IEC 61131-2 compliant, industrial digital input (DI) device. The MAX22191 translates a 24V industrial switching signal to a 3.3V/5V CMOS-level output, or to a 2.3mA (typ) current output for driving an optocoupler and/or LED. Voltage thresholds and current levels in the MAX22191 are compliant with Type 1 and Type 3 inputs, while minimizing power dissipation. The MAX22191 is also compliant with 48V inputs, with the addition of external resistors. Operating power is derived from the input signal, eliminating the need for an external field-side power supply. A 250ns (max) fast response time is ideal for high-speed inputs. Additionally, a CMOS-compatible test input is available for safety diagnostics. The MAX22191 features robust functionality for harsh industrial systems and is capable of normal operation with input signals ranging from -60V to +60V. Integrated thermal shutdown further protects the device when VCC is present. The MAX22191 is available in a small, 6-lead SOT23 package and operates over the -40°C to +125°C ambient temperature range. Design Solution: Worried About Heat in Your I/O Module? No Need to Sweat ›

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Features

High Integration for Flexible Circuit Designs Interfaces to Optocouplers or Digital Isolators Capable of Driving an Optocoupler and Status LED Operational as Sink or Source Digital Input Ultra-High Speed: 250ns (max) Propagation Delay Test Pulse Diagnostic Allows for Small Footprint TVS Surge Protection
Interfaces to Optocouplers or Digital Isolators
Capable of Driving an Optocoupler and Status LED
Operational as Sink or Source Digital Input
Ultra-High Speed: 250ns (max) Propagation Delay
Test Pulse Diagnostic
Allows for Small Footprint TVS Surge Protection
Reduced Power and Heat Dissipation Parasitically Powered from the Field Input Accurate ±15% Input-Current Limiting 100µA (typ) Quiescent Current with Optocoupler 96% (typ) Current-Transfer Efficiency to Optocoupler
Parasitically Powered from the Field Input
Accurate ±15% Input-Current Limiting
100µA (typ) Quiescent Current with Optocoupler
96% (typ) Current-Transfer Efficiency to Optocoupler
Robust Design Operates from -60V to +60V Input Voltage -40°C to +125°C Ambient Operating Temperature
Operates from -60V to +60V Input Voltage
-40°C to +125°C Ambient Operating Temperature

Specifications

Digital Input/Output Digital Input
Interface Type CMOS
# Channels 1
VSUPPLY (V) (min) -60
VSUPPLY (V) (max) 60
Digital Input Type Type 1Type 3
Min. Detectable Field Input Pulse Width (µs) 0.25
Oper. Temp. (°C) -40 to +125
Package/Pins SOT23/6
BudgetaryPrice (See Notes) 0.7


MAX22191AUT+ Special Function by Analog Devices

DIGITAL INPUT DEVICE 5.5V SOT-23-6

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

Specifications

IC Function Digital Input Translator
Supply Voltage Min 3V
Supply Voltage Max 5.5V
IC Package Type SOT-23
No. of Pins 6Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

DIGITAL INPUT DEVICE, 5.5V, SOT-23-6 | Farnell

Frequently Asked Questions

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Is the MAX22191AUT+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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