Quad 16-bit current-output DAC

28 May 2008 Analogue, Mixed Signal, LSI

Linear Technology has introduced the LTC2755-16, a quad 16-bit current-output DAC with six software-programmable output ranges. The device guarantees 16-bit linearity over the industrial temperature range without any adjustment. Each DAC output can be individually programmed through a parallel interface or can be pin-strapped for operation within a single range. By integrating four DACs with very good linearity, the LTC2755-16 is ideal for multichannel data acquisition systems and automated test equipment. It is capable of outputting six unique software-programmable unipolar and bipolar output ranges. Software programmability eliminates the need for expensive precision resistors, gain stages and switching jumpers by hand. The six output voltage ranges include two unipolar ranges (0 to 5 V, 0 to 10 V) and four bipolar ranges (±10 V, ±5 V, ±2,5 V, -2,5 V to +7,5 V). The device outputs any of the six ranges while operating from a single 2,7 V to 5,5 V supply, drawing a maximum supply current of only 1 μA.

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