16-Bit, 200 MSPS/250 MSPS Analog-to-Digital Converter

The AD9467 is a 16-bit, monolithic, IF sampling analog-to-digital converter (ADC). It is optimized for high performance over wide bandwidths and ease of use. The product operates at a 250 MSPS conversion rate and is designed for wireless receivers, instrumentation, and test equipment that require a high dynamic range.

The ADC requires 1.8 V and 3.3 V power supplies and a low voltage differential input clock for full performance operation. No external reference or driver components are required for many applications. Data outputs are LVDS compatible (ANSI-644 compatible) and include the means to reduce the overall current needed for short trace distances.

A data clock output (DCO) for capturing data on the output is provided for signaling a new output bit.

The internal power-down feature supported via the SPI typically consumes less than 5 mW when disabled.

Optional features allow users to implement various selectable operating conditions, including input range, data format select, and output data test patterns.

The AD9467 is available in a Pb-free, 72-lead, LFCSP specified over the −40°C to +85°C industrial temperature range.

Product Highlights

* IF optimization capability used to improve SFDR.

* Outstanding SFDR performance for IF sampling applications such as multicarrier, multimode 3G, and 4G cellular base station receivers.

* Ease of use: on-chip reference, high input impedance buffer, adjustable analog input range, and an output clock to simplify data capture.

* Packaged in a Pb-free, 72-lead LFCSP package.

* Clock duty cycle stabilizer (DCS) maintains overall ADC performance over a wide range of input clock pulse widths.

* Standard serial port interface (SPI) supports various product features and functions, such as data formatting (offset binary, twos complement, or Gray coding). Applications

* Multicarrier, multimode cellular receivers

* Antenna array positioning

* Power amplifier linearization

* Broadband wireless

* Radar

* Infrared imaging

* Communications instrumentation

* 75.5 dBFS SNR to 210 MHz at 250 MSPS

* 90 dBFS SFDR to 300 MHz at 250 MSPS

* SFDR at 170 MHz at 250 MSPS

* 92 dBFS at −1 dBFS

* 100 dBFS at −2 dBFS

* 60 fs rms jitter

* Excellent linearity at 250 MSPS

* DNL = ±0.5 LSB typical

* INL = ±3.5 LSB typical

* See data sheet for additional features