MP8798 Datasheet | Exar

FEATURES - - - - - - - - - - - - 10-Bit Resolution 4-Channel Mux Sampling Rates from <1 k Hz to 1 MHz Very Low Power CMOS - 30 m W (typ) Power Down; Lower Consumption - 3 m W (typ) Input Range between GND and VDD No S/H Required for Analog Signals less than 100 k Hz No S/H Required for CCD Signals less than 1 MHz Single Power Supply (4 to 6 Volts) Latch-Up Free High ESD Protection: 4000 Volts Minimum 3 V Version: MP87L98 BENEFITS - - - - - - - - Reduced Board Space (Small Package) Reduced External Parts, No Sample/Hold Needed Suitable for Battery & Power Critical Applications Designer can Adapt Input Range & Scaling µP/DSP Interface and Control Applications High Resolution Imaging - Scanners & Copiers Wireless Digital munications Multiplexed Data Acquisition APPLICATIONS GENERAL DESCRIPTION The MP8798 is a flexible, easy to use, precision 10-bit Analog-to-Digital Converter with 4-channel mux that operates over a wide range of input and sampling conditions. The MP8798 can operate with pulsed “on demand” conversion operation or continuous “pipeline” operation for sampling rates up to 1 MHz. The elimination of the S/H, requirements, very low power, and small package size offer the designer a low cost solution. No sample and hold is required for charge couple device applications, up to 1 MHz, or multiplexed input applications when the signal source bandwidth is limited to 100 k Hz. The input architecture of the MP8798 allows direct interface to any analog input range between AGND and AVDD (0 to 2 V, 1 to 4 V, 0 to 5 V, etc.). The user simply sets VREF(+) and VREF(- ) to enpass the desired input range. Scaled reference resistor tap 1/2 R allows for customizing the transfer curve as well as providing a 1/2 span reference voltage. Digital outputs are CMOS and TTL patible. The MP8798 uses a two-step flash technique. The first segment converts the 4 MSBs and consists of 15 autobalanced parators, latches, an encoder, and buffer storage registers. The second segment converts the...