MAX14890EATJ+

MAX14890EATJ+ is an incremental encoder interface for RS-422, HTL, and TTL with digital inputs. The MAX14890E incremental encoder receiver contains four differential receivers and two single-ended receivers. The auxiliary IEC 61131-2 Type-1/Type-3 digital inputs are designed for operation with switches or proximity sensors and can be individually configured for TTL operation. All receiver input signals are fault-protected to voltage shorts in the ±40V range. Per channel fault detection provides warning of irregular conditions such as small differential signals, shorts, opens, overvoltages, and undervoltages. The MAX14890E features a pin-selectable SPI or parallel logic interface. SPI control provides detailed diagnostics and individual configurations for receivers. Applications include encoder interfaces, motor controllers, pulse counters, and servo control commutation.

• High flexibility supports all encoder types, selectable RS-422/HTL/TTL/DI receivers
• RS-422 maximum data rate is 35Mbps at VCC=5V±10%, VL=1.62V to VCC, TA=-40°C to +125°C
• TTL maximum switching rate is 5MHz at TTL mode, CL=15pF, 0V ≤ VIN ≤ +5V
• Single-ended (SE-HTL) maximum switching rate is 400KHz at SE-HTL mode, HITH is high or low
• SPI or pin-controlled operation, 1.62V to 5.5V logic interface
• SPI interface allows per-receiver configuration
• Integrated fault detection reduces down-time
• Open-wire and short-circuit detection, overvoltage and undervoltage fault detection
• 32 TQFN EPpackage
• Temperature range from -40°C to +125°C

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party.