AD9642BCPZ-170

Analog To Digital Converters (ADC) Overview

The AD9642BCPZ-170 is a single-channel, 14-bit analog-to-digital converter (ADC) from Analog Devices Inc., operating at a maximum sampling rate of 170 MSPS. It utilizes a multistage differential pipelined architecture with integrated output error correction logic and an internal voltage reference. The device accepts differential analog inputs with a nominal full-scale range of 1.75 V p-p and outputs data via DDR LVDS interfaces compliant with ANSI-644 levels. Powered by a single 1.8 V supply for both analog and digital sections, it features a 3-wire SPI-compatible serial port for configuration. The component operates within an industrial temperature range of −40°C to +85°C and is housed in a 32-lead LFCSP package.

Analog To Digital Converters (ADC) Feature Summary

• Multistage differential pipelined ADC core with integrated output error correction logic
• Internal voltage reference and duty cycle stabilizer for maintaining performance
• Flexible analog input range supporting user-selectable spans
• Integer 1-to-8 input clock divider accommodating high-frequency clocks

Analog To Digital Converters (ADC) Applications

• TD-SCDMA, WiMAX, WCDMA, CDMA2000, GSM, EDGE, LTE communications
• Diversity radio systems and smart antenna systems
• Ultrasound equipment and portable instrumentation
• General-purpose software radios and I/Q demodulation systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific speed grade suffix matches the required conversion rate, as the AD9642 family includes variants rated for 170 MSPS, 210 MSPS, and 250 MSPS. Confirm that the ordering code corresponds to the BCPZ package style and the -170 speed bin. Ensure compliance with RoHS directives and check for any specific environmental or handling requirements outlined in the manufacturer's documentation before finalizing procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 14-bit resolution and up to 170 MSPS sampling rate are required for broadband applications. Consider the pin compatibility with the AD9634 if migration from 12-bit architectures is planned. Evaluate the power consumption specifications against system thermal constraints, noting the standby and power-down modes available for energy savings. Verify that the LVDS output interface aligns with the receiving device's input capabilities.

Analog To Digital Converters (ADC) Part Context

The AD9642 belongs to a family of high-performance, low-cost, small-size, wide-bandwidth, and versatile analog-to-digital converters designed for communications applications. It shares architectural similarities with other devices in the series, such as the AD9648, but differs in channel count and package size. The device is protected by U.S. patents and is intended to meet the stringent performance and form factor requirements of modern wireless infrastructure.

Analog To Digital Converters (ADC) Replacement Considerations

The AD9642 is pin-compatible with the AD9634, allowing for migration between 14-bit and 12-bit resolutions without board redesign. It is also compatible with the AD6672. When selecting a replacement, ensure the substitute maintains the same 14-bit resolution, LVDS output interface, and 1.8 V supply requirements.