PCM55

® PCM54 PCM55 DESIGNED FOR AUDIO 16-Bit Monolithic DIGITAL-TO-ANALOG CONVERTERS FEATURES q q q q PARALLEL INPUT FORMAT 16-BIT RESOLUTION 15-BIT MONOTONICITY (typ) –92dB TOTAL HARMONIC DISTORTION (K Grade) q 3µs SETTLING TIME (Voltage Out) q 96dB DYNAMIC RANGE q ±3V or ±1mA AUDIO OUTPUT q OPERATES ON ±5V (PCM55) TO ±12V (PCM54) SUPPLIES q 28-PIN DIP (PCM54) q 24-LEAD SOIC (PCM55) DESCRIPTION The PCM54 and PCM55 family of converters are parallel input, fully monotonic, 16-bit digital-to-analog converters that are designed and specified for digital audio applications. These devices employ ultra-stable nichrome (NiCr) thin-film resistors to provide monotonicity, low distortion, and low differential linearity error (especially around bipolar zero) over long periods of time and over the full operating temperature. These converters are completely self-contained with a stable, low noise, internal, zener voltage reference; high speed current switches; a resistor ladder network; and a fast settling, low noise output operational amplifier all on a single monolithic chip. The converters are operated using two power supplies that Reference Voltage RF can range from ±5V (PCM55) to ±12V (PCM54). Power dissipation with ±5V supplies is typically less than 200mW. Also included is a provision for external adjustment of the MSB error (differential linearity error at bipolar zero, PCM54 only) to further improve Total Harmonic Distortion (THD) specifications if desired. A current output (IOUT...