MAX5115 Datasheet

• Nonvolatile Registers Initialize DACs to Stored States
• +2.7V to +5.25V Single-Supply Operation
• Quad 8-Bit DACs with Independent High and Low Reference Inputs
• Rail-to-Rail Output Buffers
• Low 200µA per DAC Supply Current
• Power-Down Mode Reduces Supply Current to 25µA (max)
• 400kHz, I²C-Compatible, 2-Wire Serial Interface
• Small 16-/20-Pin QSOP Packages

• ATE Calibration
• Digital Gain and Offset Adjustments
• Laser Biasing
• Portable Instrumentation
• Power-Amp Bias Control
• Programmable Attenuators

The MAX5115 quad, 8-bit, digital-to-analog converters (DACs) feature nonvolatile registers. These nonvolatile registers store the DAC operating modes and output states, allowing the DACs to initialize to specified configurations at power-up. Precision on-chip output buffers swing rail-to-rail, and provide 8µs settling time. The I²C-compatible, 2-wire serial interface allows for a maximum clock frequency of 400kHz.

The MAX5115 has independent high and low reference inputs allowing maximum output voltage range flexibility. The reference rails accept voltage inputs that range from ground to the positive supply rail.

The devices operate from a single +2.7V to +5.25V supply and consume 200µA per DAC. A software-controlled power-down mode decreases supply current to less than 25µA. A software-controlled mute mode sets each DAC, or both DACs simultaneously, to their respective REFL_ voltages.

The MAX5115 is available in a 20-pin QSOP. The MAX5115 is specified for operation over the extended (-40°C to +85°C) temperature range.