Temperature-Controlled, Nonvolatile, I²C Quad DAC

The DS3911 is a quad, 10-bit delta-sigma output, nonvolatile (NV) controller that features an on-chip temperature sensor and associated analog-to-digital converter (ADC). The integrated temperature sensor indexes the up to 2°C resolution NV lookup tables (LUTs), encompassing a -40°C to +100°C temperature range. The LUT directly drives the delta-sigma digital-to-analog converter (DAC) outputs. This flexible LUT-based architecture allows the device to provide a temperature-compensated DAC output with arbitrary slope. Programming is accomplished by an I²C-compatible interface that operates at speeds of up to 400kHz.

Applications

* Active Optical Cables * Instrumentation and Industrial Controls * Linear and Nonlinear Compensation * Optical Transceivers

* Four 10-Bit Delta-Sigma Outputs

* On-Chip Temperature Sensor and ADC

* Four Temperature-Indexed LUTs, Up to 2°C Resolution

* I²C-Compatible Serial Interface

* Address Pins Allow Up to Four DS3911s to Share the Same I²C Bus

* 2.8V to 5.5V Digital Supply

* -40°C to +100°C Operating Temperature Range

* 3mm x 5mm, 14-Pin TDFN Package