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DS3911：Temperature-Controlled, Nonvolatile, I²C Quad DAC

Low-Cost Solution for Providing Bias and Modulation Control for Multichannel Laser Diode Drivers

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.

Key Features 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

DS3911: Typical Operating Circuit Applications/Uses Active Optical Cables Instrumentation and Industrial Controls Linear and Nonlinear Compensation Optical Transceivers

DataSheet

Parametrics

Quality and Environmental Data

• DS3911.pdf

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