AD7278,pdf,datasheet

TheAD7278isan8-bithighspeedlowpower

The AD7278 is an 8-bit, high speed, low power, successive-approximation ADC. The part operates from a single 2.35V to 3.6 V power supply and features throughput rates up to 3 MSPS. The part contains a low-noise, wide bandwidth track/hold amplifier which can handle input frequencies in excess of 30 MHz.

The conversion process and data acquisition are controlled using CS and the serial clock, allowing the devices to interface with microprocessors or DSPs. The input signal is sampled on the falling edge of CS and the conversion is also initiated at this point. There are no pipeline delays associated with the part.

The AD7278 uses advanced design techniques to achieve very low power dissipation at high throughput rates.

The reference for the part is taken internally from V_DD. This allows the widest dynamic input range to the ADC. Thus the analog input range for the part is 0 to V_DD. The conversion rate is determined by the SCLK.