IO-Link Device Transceiver with Integrated Cortex-M0 and Analog Front End

The MAX22522 is a mixed signal IO-Link device transceiver incorporating an ARM®Cortex-M0 with an IO-Link data link state machine. This state machine autonomously manages all time critical tasks for IO-Link communication at the COM1, COM2, and COM3 data rates. The integrated state machine manages all IO-Link M-sequence types, as well as full ISDU transfers.

The MAX22522 integrates programmable analog components including a 13-bit ADC, an integrated comparator, and four programmable resistors, which allow the MAX22522 to be used for signal generation and conditioning for end-of-line calibration for sensors and actuators.

Low-noise 5V, 3.3V, and 1.8V linear regulators provide low-noise supplies for analog signal sensing. Optionally, an external NPN transistor may also be used to shunt regulator heat off-chip.

The 24V C/Q driver can be configured to operate in high- side (PNP), low-side (NPN), or push-pull (PP) modes. The C/Q current limit threshold is programmable from 50mA to 250mA.

An integrated comparator, a 6-bit DAC, a 13-bit ADC, and high-resolution variable resistors are included for signal conditioning for analog sensing circuitry.

The MAX22522 is available in a 60-bump WLP package (4.42mm × 2.64mm) and operates over the −40°C to +125°C temperature range.

* Enable Smallest Sensors and Actuators

* Cortex-M0 with 64kB RAM and SWD

* IO-Link State Machine

* High Performance IO-Link Transceiver

* High Speed Comparator

* 6-bit DAC

* Three 256-Tap 10kΩ Variable Resistors

* 60kΩ 64-Tap Variable Resistor

* 13-Bit ADC

* 10 GPIOs Configurable as I2C, SPI, SWD

* Integrated Temperature Sensor

* Integrated Oscillator with PLL for IO-Link

* Highly Flexible and Configurable

* 7V to 36V Supply

* COM1, COM2, and COM3 Data Rates

* Programmable 50mA to 250mA C/Q Current Limit Threshold

* 5V and 1.8V Linear Regulators with Controller

* WLP Package (4.42mm × 2.64mm)