AD9640ABCPZ-80

Analog To Digital Converters (ADC) Overview

The AD9640ABCPZ-80 is a dual-channel, 14-bit analog-to-digital converter (ADC) from Analog Devices. It operates at a maximum sampling rate of 80 MSPS with an internal clock divider supporting integer ratios from 1 to 8. The device utilizes a multistage differential pipelined architecture and accepts differential analog inputs with a 650 MHz bandwidth. It functions on a single 1.8 V analog supply and supports digital output driver supplies ranging from 1.8 V to 3.3 V CMOS or 1.8 V LVDS. Key performance metrics include a Signal-to-Noise Ratio (SNR) of 72.1 dB at 70 MHz input frequency and a Spurious-Free Dynamic Range (SFDR) of 85 dBc. The component is housed in a 64-lead LFCSP package and operates within an industrial temperature range of -40°C to +85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrated dual 14-bit ADC core with differential sample-and-hold amplifiers and built-in error correction logic.
• Flexible analog input configuration supporting user-selectable voltage spans from 1 V p-p to 2 V p-p.
• Built-in signal monitor and fast detect features for automatic gain control optimization and overrange detection.
• Configurable serial port interface for system control, data formatting selection, and power management.

Analog To Digital Converters (ADC) Applications

• Communications systems including GSM, EDGE, WCDMA, LTE, CDMA2000, WiMAX, and TD-SCDMA.
• Diversity radio systems and multimode digital receivers.
• I/Q demodulation systems and smart antenna arrays.
• General-purpose software-defined radios and broadband data applications.

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'A' against the manufacturer's ordering guide to confirm the exact grade and testing parameters. Ensure the design accommodates the required DRVDD voltage levels for the selected output interface mode. Confirm thermal management requirements for the 64-lead LFCSP package based on the expected ambient operating conditions.

Analog To Digital Converters (ADC) Selection Notes

Select this model when a sampling rate up to 80 MSPS is sufficient for the application bandwidth. Consider the AD9640ABCPZ-105 or higher speed variants if the system requires faster conversion rates. Evaluate the power consumption differences between CMOS and LVDS output modes to optimize the DRVDD supply current. Verify that the 1.8 V analog supply compatibility matches the system's available voltage rails.

Analog To Digital Converters (ADC) Part Context

This component belongs to the AD9640 family of dual high-speed ADCs. The family includes variants with different maximum sampling speeds, such as 105 MSPS, 125 MSPS, and 150 MSPS. All members share the same pinout and architectural features, allowing for straightforward migration between speed grades while maintaining board layout compatibility.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible alternatives within the same series include the AD9640BCPZ-80, which shares the same package and functionality but may differ in commercial vs. industrial temperature specifications. Higher speed versions like the AD9640ABCPZ-105 are electrically compatible but consume more power.