ADS7870 ADC Supplier?

We want to use the same ADC that rabbit uses, but although its in production, no supplier has these chips, but then the rabbit 4000 module uses them. Does anyone know how where to get them? RabbitSemi doesnt sell them do they?

Lead-time is about 43 weeks, no thanks. We decided to use an ADS7828 with a PCA9554 for the IO.