AD9649BCPZ-65

Analog To Digital Converters (ADC) Overview

The AD9649BCPZ-65 is a monolithic, single-channel 14-bit analog-to-digital converter (ADC) from Analog Devices. It operates at a maximum sampling rate of 65 MSPS with a differential clock input supporting CMOS, LVDS, or LVPECL logic. The device features a multistage differential pipeline architecture with output error correction logic to ensure no missing codes across the full operating temperature range. It utilizes a single 1.8 V analog supply and a separate digital output driver supply ranging from 1.8 V to 3.3 V. Key performance metrics include a Signal-to-Noise Ratio (SNR) of 74.3 dBFS at a 9.7 MHz input frequency and a Spurious-Free Dynamic Range (SFDR) of 93 dBc under the same conditions. The ADC incorporates an on-chip voltage reference and sample-and-hold circuit.

Analog To Digital Converters (ADC) Feature Summary

• Multistage differential pipeline architecture with integrated output error correction logic for high accuracy.
• On-chip voltage reference and sample-and-hold circuit designed for low cost and ease of use.
• Standard serial port interface (SPI) supports configuration of data formatting, internal clock dividers, power-down modes, and DCO timing.
• Flexible digital output options including offset binary, gray code, or twos complement formats with programmable alignment.

Analog To Digital Converters (ADC) Applications

• Communications systems including GSM, EDGE, W-CDMA, LTE, CDMA2000, WiMAX, and TD-SCDMA.
• Diversity radio systems and multimode digital receivers.
• Smart antenna systems.
• Portable medical imaging and ultrasound equipment.
• Battery-powered instruments and handheld scope meters.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'BCPZ' against the manufacturer's official ordering guide to confirm package type and RoHS compliance status. Ensure that the required sampling speed variant matches the '-65' designation in your design specifications. Cross-reference the datasheet revision history for any updates to absolute maximum ratings or thermal characteristics prior to finalizing procurement orders.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 14-bit resolution and 65 MSPS sampling rate are required within a compact form factor. The device is suitable for designs needing a single 1.8 V analog supply and flexible 1.8 V to 3.3 V digital logic compatibility. Consider the pin-out compatibility with the AD9629 and AD9609 if migration from lower-resolution converters is planned. Evaluate the power consumption requirements against the specified standby and active modes.

Analog To Digital Converters (ADC) Part Context

The AD9649 belongs to a family of 14-bit, 1.8 V analog-to-digital converters available in multiple sampling speed variants: 20 MSPS, 40 MSPS, 65 MSPS, and 80 MSPS. All variants share the same 32-lead LFCSP package and pinout, facilitating easy upgrades between speeds. The device is designed to operate over the industrial temperature range of -40°C to +85°C and is RoHS compliant.

Analog To Digital Converters (ADC) Replacement Considerations

The AD9649BCPZ-65 is pin-compatible with the AD9649BCPZ-20, AD9649BCPZ-40, and AD9649BCPZ-80. It is also compatible with the AD9629 (12-bit) and AD9609 (10-bit) devices, allowing for simple migration paths between different resolutions and speeds within the same package footprint.