Exar Corporation XRD87L85
The XRD87L85 is an 8-bit Analog-to-Digital Converter. Designed using an advanced 3.3V CMOS process, this part offers excellent performance, low power consumption, and latch-up free operation. This device uses a two-step flash architecture to maintain low power consumption at high conversion rates.| Part No. | XRD87L85 |
|---|---|
| Datasheet | XRD87L85 Download |
| Manufacturer |  Exar Corporation |
| Description | Low-Voltage CMOS 8-Bit High-Speed Analog-to-Digital Converter |
| Buy | Stock & Price |
FEATURES
● 8-Bit Resolution● Up to 10 MHz Sampling Rate
● Internal S/H Function
● Single Supply: 3.3V
● VIN DC Range: 0V to VDD
● VREF DC Range: 1V to VDD
● Low Power: 25mW typ. (excluding reference)
● Latch-Up Free
● ESD Protection: 2000V Minimum
● 20-Pin Package Available: XRD87L75
APPLICATIONS
● Digital Color Copiers● Cellular Telephones
● CCDs and Scanners
● Video Capture Boards
GENERAL DESCRIPTION
The input circuitry of the XRD87L85 includes an on-chip S/H function which allows the user to digitize analog input signals between AGND and AVDD. Careful design and chip layout have achieved a low analog input capacitance. This reduces “kickback” and eases the requirements of the buffer/amplifier used to drive the XRD87L85. The designer can choose the internally generated reference voltages by connecting VRB to VRBS and VRT to VRTS, or provide external reference voltages to the VRB and VRT pins. The internal reference generates 0.4V at VRB and 1.72V at VRT. Providing external reference voltages allows easy interface to any input signal range between AGND and AVDD.
