The LTC2609/LTC2619/LTC2629 are quad 16-, 14- and 12-bit, 2.7V-to-5.5V rail-to-rail voltage output DACs in a 16-lead SSOP package. They have built-in high perfor- mance output buffers and are guaranteed monotonic. These parts establish new board-density benchmarks for 16- and 14-bit DACs and advance performance standards for output drive and load regulation in single-supply, voltage-output DACs.
The LTC4223 is a dual supply hot swap controller designed for Advanced Mezzanine Cards (AMC). It controls the main 12V supply using an external N-channel MOSFET and the 3.3V auxiliary supply with an integrated switch. The 12V output ramp rate is adjustable and includes inrush current limiting. The 12V output is protected against short circuit faults with a fast acting current limit and a 5% accurate timed circuit breaker. The 3.3V output features soft start and overcurrent protection. The LTC4223 provides a current monitor output for the 12V supply and reports fault and power-good status for both supplies. It also detects card presence and allows independent control of the 12V and 3.3V outputs. The LTC4223-1 features a latch-off circuit breaker, while the LTC4223-2 provides automatic retry after a fault.
