MAX5548 Datasheet | Maxim Integrated

.. 19-3836; Rev 0; 10/05 Dual, 8-Bit, Programmable, 30m A High-Output-Current DAC General Description The MAX5548 dual, 8-bit, digital-to-analog converter (DAC) Features high-output-current capability. The MAX5548 sources up to 30m A per DAC, making it ideal for PIN diode biasing applications. Outputs can also be paralleled for high-current applications (up to 60m A typ). Operating from a single +2.7V to +5.25V supply, the MAX5548 typically consumes 1.5m A per DAC in normal operation and less than 1µA (max) in shutdown mode. The MAX5548 also Features low output leakage current in shutdown mode (±1µA max) that is essential to ensure that the external PIN diodes are off. Additional Features include an integrated +1.25V bandgap reference, and a control amplifier to ensure high accuracy and low-noise performance. A separate reference input (REFIN) allows for the use of an external reference source, such as the MAX6126, for improved gain accuracy. A pin-selectable I2C- -/SPI™-patible serial interface provides optimum flexibility for the MAX5548. The maximum programmable output current value is set using software and an adjustment resistor. The MAX5548 is available in a 3mm x 3mm, 16-pin, thin QFN package, and is specified over the extended (-40°C to +85°C) temperature range. - Pin-Selectable I2C- Features or SPI-patible Interface - Guaranteed Low Output Leakage Current in Shutdown (±1µA max) - Guaranteed Monotonic over Extended Temperature Range - Dual Outputs for Balanced Systems - Current Outputs Source Up to 30m A per DAC - Parallelable Outputs for 60m A Applications - Output Stable with RF Filters - Internal or External Reference Capability - Digital Output (DOUT) Available for Daisy Chaining in SPI Mode - +2.7V to +5.25V Single-Supply Operation - 16-Pin (3mm x 3mm) Thin QFN Package - Programmable Output Current Range Set by Software and Adjustment Resistor Ordering Information PART MAX5548ETE TEMP RANGE -40°C to +85°C PINPKG 16 Thin...