XRD6406 Datasheet | Exar

FEATURES - - - - - - - - - - - 10-Bit Resolution Sampling Rate to 6 MSPS DNL = +1 LSB, INL = +2 LSB Internal S/H Function Single 5V Power Supply VIN DC Range: 0V to VDD VREF DC Range: 1V to VDD Low Power: 65m W Three-State Digital Outputs Latch-Up Free Pin patible With: MP8784 APPLICATIONS - Digital Color Copiers - Precision CCDs and Scanners - Digital Radio BENEFITS - - - - Simplified Analog Design Rugged Few External ponents, no S/H Needed Reduced Board Space June 1998-2 GENERAL DESCRIPTION The XRD6406 is a 10-bit, 6 MSPS, Analog-to-Digital Converter for applications that require high speed and high accuracy. Designed using an advanced CMOS process, this part offers excellent performance, low power consumption and latch-up free operation. The XRD6406 uses a subranging architecture to maintain low power consumption at high conversion rates. Our proprietary parator design achieves a low analog input capacitance. The input circuitry of the XRD6406 includes an on-chip S/H function that allows this part to digitize analog input signals between AGND and AVDD. The designer can choose the internally generated reference voltages, or provide external reference voltages to the VRB and VRT pins. The internal reference generates 1.0V at VRB and 4V at VRT. Providing external reference voltages allows easy interface to any input signal range between GND and VDD. This also allows the system to cancel zero scale and full scale errors. The Reference Ladder taps (R1 to R3) can be used to externally trim any INL errors. This device operates from a single 5V supply. Power consumption from a 5V supply is typically 65m W at FS=6MHz. SIMPLIFIED BLOCK DIAGRAM AVDD VDD VRTS VRT R1-R3 VRB VRBS S/H VIN Clock Logic CLK OE DVDD DGND 3 MSB parators Latch Encoder LSB parators Latch F/F DB0 (LSB) DB9 (MSB) AGND Rev. 1.00 E1998 EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 z (510) 668-7000 z (510) 668-7017 ORDERING INFORMATION Package Type Plastic Dip SOIC Temperature...