AD9248BCPZ-65

Overview

The AD9248BCPZ-65 is a dual-channel, 14-bit analog-to-digital converter (ADC) operating at a maximum sampling rate of 65 MSPS. It features dual high-performance sample-and-hold amplifiers and an integrated voltage reference within a multistage differential pipelined architecture. The device guarantees no missing codes across the full industrial temperature range (-40°C to +85°C). It operates on a single 3 V supply (2.7 V to 3.6 V) with typical power consumption of 600 mW at maximum speed. Key performance metrics include a Signal-to-Noise Ratio (SNR) of 71.6 dBc and a Spurious-Free Dynamic Range (SFDR) of 80.5 dBc at Nyquist. The input supports flexible ranges from 1 V p-p to 2 V p-p with a 500 MHz bandwidth.

Feature Summary

• Dual-channel architecture with independent clock inputs and duty cycle stabilizer for maintaining performance under varying clock conditions.
• Integrated voltage reference and wide-bandwidth differential sample-and-hold amplifier supporting flexible analog input ranges.
• Multiplexed data output option enabling single-port operation from either channel A or channel B.
• Exceptional crosstalk immunity exceeding 85 dB between channels.

Applications

• Ultrasound equipment
• Direct conversion or IF sampling receivers for WB-CDMA, CDMA2000, and WiMAX
• Battery-powered instruments
• Hand-held scopemeters
• Low cost digital oscilloscopes

Procurement Notes

Verify the specific suffix 'BCPZRL' against official documentation to confirm reel packaging and lead-free status. Ensure the source document explicitly links this suffix to the AD9248-65 speed grade. Confirm availability through authorized distributors as standard stock levels may vary.

Selection Notes

Select the AD9248BCPZ-65 when dual-channel 14-bit resolution and 65 MSPS throughput are required. Consider the 600 mW power dissipation and thermal management needs for the LFCSP package. Verify compatibility with the system's clock jitter specifications and analog input signal levels against the 1 V p-p to 2 V p-p range.

Part Context

The AD9248 belongs to Analog Devices' family of high-speed, low-power ADCs. It is pin-compatible with the 12-bit AD9238, allowing for design flexibility between resolution and cost. The -65 speed grade represents the highest performance tier in the series, optimized for applications demanding maximum dynamic range at high sampling rates.

Replacement Considerations

The AD9248BSTZ-65 is a pin-compatible alternative available in a 64-lead LQFP package. The AD9248BCPZ-40 offers the same functionality at a reduced 40 MSPS sampling rate. Verify package dimensions and thermal characteristics when substituting between LFCSP and LQFP variants.