AD9655BCPZ-125

Analog To Digital Converters (ADC) Overview

The AD9655BCPZ-125 is a dual-channel, 16-bit analog-to-digital converter (ADC) operating at a sampling rate of up to 125 MSPS. It features a pipeline architecture with an on-chip sample-and-hold circuit and requires a single 1.8 V supply. The device provides serial LVDS digital outputs with two data lanes per channel, alongside dedicated Data Clock Output (DCO) and Frame Clock Output (FCO). Key performance metrics include a full power analog bandwidth of 500 MHz, a typical Signal-to-Noise Ratio (SNR) of 79.3 dBFS at 69.5 MHz input frequency, and an Effective Number of Bits (ENOB) of 12.6 bits. Differential Nonlinearity (DNL) is ±0.7 LSB, while Integral Nonlinearity (INL) is ±3.4 LSB.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel 16-bit resolution with integrated sample-and-hold circuitry for high-speed signal acquisition.
• Serial LVDS output interface providing flexible bit orientation and programmable data alignment.
• Single 1.8 V power supply operation supporting low power consumption across industrial temperature ranges.
• Built-in SPI control interface enabling configuration of test patterns, clock dividers, and power-down modes.

Analog To Digital Converters (ADC) Applications

• Multimode digital receivers for wireless communications standards including LTE, CDMA2000, and WiMAX.
• I/Q demodulation systems and smart antenna diversity radio applications.
• Portable medical imaging and ultrasound equipment requiring compact form factors.
• Battery-powered instruments and handheld scope meters.
• Radar and LIDAR broadband data acquisition systems.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'BCPZ' against the manufacturer's current ordering guide to confirm package type and RoHS compliance status. Ensure that the required evaluation board, such as the AD9655-125EBZ, is available for initial system validation and performance testing before finalizing procurement quantities.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a small footprint and low power consumption are critical alongside high dynamic range. The AD9655 is pin-compatible with the AD9645 and AD9635, allowing for design flexibility across different resolution requirements. Ensure the application supports serial LVDS interfaces and can accommodate the necessary clocking infrastructure for optimal performance.

Analog To Digital Converters (ADC) Part Context

This device belongs to the AD9655 family of high-speed data converters from Analog Devices. It is designed to replace parallel ADCs in space-constrained designs by utilizing a serial output architecture. The part is specified over the industrial temperature range of −40°C to +85°C and is housed in a 32-lead LFCSP package.

Analog To Digital Converters (ADC) Replacement Considerations

The AD9655 is pin-compatible with the AD9645 (14-bit) and AD9635 (12-bit) dual ADCs. These parts can be substituted directly if a change in resolution or dynamic performance characteristics is acceptable for the specific application requirements.