Post Go back to editing

Spice Model Failing after LTSpice 24 Upgrade

Category: Software
Product Number: ADG1436
Software Version: LTSpice 24.1.8

Hi all,

We've got a model that we've been working with successfully for years that utilizes the ADG1436 macro model downloaded from https://www.analog.com/en/products/adg1436.html - I have tried with our existing model and new download of this model. I have recently had to update my version of LTSpice to 24.1.8 (I don't know which version I was previously using but it had the previous UI icons compared to my current version). After the upgrade, I get the following error message relating the model that I wasn't previously getting:

C:\Users\*****\OneDrive - ******\Documents\******\Spice\ADG1436.cir(115): Syntax error: Unexpected input.
EOUT11 a11 11e POLY(2) (11sa1,6) (11f,6) 0 0 0 0 0.999/1000
                                                      ^^^^^
C:\Users\*****\OneDrive - ******\Documents\******\Spice\ADG1436.cir(158): Syntax error: Unexpected input.
EOUT21 a21 21e POLY(2) (21sa1,6) (21f,6) 0 0 0 0 0.999/1000
                                                      ^^^^^
C:\Users\*****\OneDrive - ******\Documents\******\Spice\ADG1436.cir(214): Syntax error: Unexpected input.
EOUT12 a12 12e POLY(2) (12sa1,6) (12f,6) 0 0 0 0 0.999/1000
                                                      ^^^^^
C:\Users\*****\OneDrive - ******\Documents\******\Spice\ADG1436.cir(257): Syntax error: Unexpected input.
EOUT22 a22 22e POLY(2) (22sa1,6) (22f,6) 0 0 0 0 0.999/1000
                                                      ^^^^^

The stars are just where I have redacted names and folders in the path but is unchanged from when it was previously working.

I have also tried replacing the existing model with the ADG1436 model from the "Switches" component library but this give different errors that prevent the simulation.

I apologise that I am unable to share the model but it seems clear that the problem arises from my recent update and looks like it related to the POLY statement in the model but is anyone able to shed any further light on this problem and help me find a solution?

Regards

M