The HMCAD1512 is a versatile high performance low power analog-to-digital converter (ADC), utilizing time-interleaving to increase sampling rate. Integrated Cross Point Switches activate the input selected by the user.

The device contains 2 ADCs that can be interleaved by the user to act as a single channel or two channels. In single channel mode, either of the two inputs can be selected as a valid input to the single ADC channel. In dual channel mode, either of the two inputs can be selected for each ADC channel. (The HMCAD1512 does not support the quad-channel mode. The HMCAD1511 should be used for this purpose).

An internal, low jitter and programmable clock divider makes it possible to use a single clock source for all operational modes.

The HMCAD1512 is based on a proprietary structure, and employs internal reference circuitry, a serial control interface and serial LVDS/RSDS output data. Data and frame synchronization clocks are supplied for data capture at the receiver. Internal 1 to 50× digital coarse gain with ENOB > 7.5 up to 16× gain, allows digital implementation of oscilloscope gain settings. Internal digital fine gain can be set separately for each ADC to calibrate for gain errors.

Various modes and configuration settings can be applied to the ADC through the serial control interface (SPI). Each channel can be powered down independently and data format can be selected through this interface. A full chip idle mode can be set by a single external pin. Register settings determine the exact function of this pin.

HMCAD1512 is designed to easily interface with Field Programmable Gate Arrays (FPGAs) from several vendors.

APPLICATIONS

• Point-to-point Microwave Links
• Digital Oscilloscopes
• Satellite Receivers