ADS5273 Datasheet | Texas Instruments

FEATURES - 23 Maximum Sample Rate: 70MSPS - 12-Bit Resolution - No Missing Codes - Total Power Dissipation: Internal Reference: 1W External Reference: 937m W - CMOS Technology - Simultaneous Sample-and-Hold - 71d BFS SNR at 5MHz IF - 3.3V Digital/Analog Supply - Serialized LVDS Outputs - Integrated Frame and Bit Patterns - Option to Double LVDS Clock Output Currents - Four Current Modes for LVDS - Pin- and Format-patible Family - TQFP-80 Power PAD™ Package APPLICATIONS - Portable Ultrasound Systems - Test Equipment - Military DESCRIPTION The ADS5273 is a high-performance, CMOS, 70MSPS, 8-channel analog-to-digital converter (ADC). An internal reference is provided, simplifying system design requirements. Low power consumption allows for the highest of system integration densities. Serial LVDS (low-voltage differential signaling) outputs reduce the number of interface lines and package size. MODEL ADS5270 ADS5271 ADS5272 ADS5277 RELATED PRODUCTS RESOLUTION (BITS) 12 12 12 10 SAMPLE RATE (MSPS) 40 50 65 65 CHANNELS 8 8 8 8 REFT V CM REFB CS SCLK SDATA RESET An integrated phase lock loop (PLL) multiplies the ining ADC sampling clock by a factor of 12. This high-frequency LVDS clock is used in the data serialization and transmission process. The word output of each internal ADC is serialized and transmitted either MSB or LSB first. In addition to the eight data outputs, a bit clock and a word clock are also transmitted. The bit clock is at 6x the speed of the sampling clock, whereas the word clock is at the same speed of the sampling clock. The ADS5273 provides an internal reference, or can optionally be driven with an external reference. Best performance is achieved through the internal reference mode. The device is available in a Power PAD TQFP-80 package and is specified over a - 40°C to +85°C operating range. ADCLK 6x ADCLK 12x ADCL K 1x...