LTC1746

The LTC®1746 is a 25Msps, sampling 14-bit A/D converter esigned for digitizing high frequency, wide dynamic ange signals. Pin selectable input ranges of ±1V nd ±1.6V along with a resistor programmable mode llow the LTC1746's input range to be optimized for a wide ariety of applications.

The LTC1746 is perfect for demanding communications pplications with AC performance that includes 77.5dB NR and 99dB spurious free dynamic range. Ultralow jitter f 0.3psRMS allows undersampling of IF frequencies of up o 70MHz with excellent noise performance. DC specs nclude ±3LSB INL and no missing codes over temperature.

The digital interface is compatible with 5V, 3V and 2V logic ystems. The ENC and ENC inputs may be driven differentially rom PECL, GTL and other low swing logic families or rom single-ended TTL or CMOS. The low noise, high gain NC and ENC inputs may also be driven by a sinusoidal ignal without degrading performance. A separate output ower supply can be operated from 0.5V to 5V, making it asy to connect directly to any low voltage DSPs or FIFOs.

The TSSOP package with a flow-through pinout simplifies he board layout.