AD9245BCP-80

Overview

The AD9245BCP-80 is a monolithic, single 3 V supply, 14-bit analog-to-digital converter featuring a high-performance sample-and-hold amplifier and voltage reference. It utilizes a multistage differential pipelined architecture with output error correction logic to provide 14-bit accuracy and guarantee no missing codes over the full operating temperature range. The device operates at a maximum sampling rate of 80 MSPS with a typical signal-to-noise ratio of 73.3 dBc and spurious-free dynamic range of 83.0 dBc. Power consumption is 366 mW at maximum speed. It accepts flexible analog inputs ranging from 1 V p-p to 2 V p-p and supports offset binary or two's complement data formats.

Feature Summary

• Multistage differential pipelined architecture with output error correction logic ensures 14-bit accuracy and guarantees no missing codes across the operating temperature range.
• Patented sample-and-hold input maintains excellent performance for input frequencies up to 100 MHz and can be configured for single-ended or differential operation.
• Integrated clock duty-cycle stabilizer maintains overall ADC performance over a wide range of clock pulse widths.
• Out-of-range (OTR) output bit indicates when the signal exceeds the selected input range.

Applications

• Medical imaging equipment
• IF sampling in communications receivers
• WCDMA, CDMA-One, CDMA-2000, and TDS-CDMA systems
• Battery-powered instruments
• Hand-held scopemeters

Procurement Notes

Verify the specific suffix against the manufacturer's ordering guide to confirm the exact sampling rate variant and package type. Ensure that the required documentation matches the Rev E datasheet specifications. Confirm compatibility with the intended digital interface logic levels before finalizing procurement orders.

Selection Notes

Select this component for applications requiring 14-bit resolution at speeds up to 80 MSPS with low power consumption. Consider the separate digital output driver supply (DRVDD) to accommodate 2.5 V and 3.3 V logic families. Evaluate the need for external versus internal voltage references based on system noise requirements and available board space.

Part Context

The AD9245BCP-80 belongs to the AD9245 family of high-speed, low-power analog-to-digital converters. This series includes variants with different maximum sampling rates, such as 20 MSPS, 40 MSPS, and 65 MSPS. All variants share the same pinout and architectural features, allowing for simplified migration between different speed grades within the same product line.

Replacement Considerations

The AD9245 is pin-compatible with the AD9215, AD9235, and AD9236. These devices allow for simplified migration from 10-bit resolutions and lower sampling rates to 14-bit performance. Verify that the alternative part meets the specific 80 MSPS requirement and power constraints of the design.