AD9245BCPZRL7-80

Overview

The AD9245BCPZRL7-80 is a monolithic, single 3 V supply, 14-bit analog-to-digital converter (ADC) featuring a high-performance sample-and-hold amplifier (SHA) 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 power consumption of 366 mW. It supports flexible analog inputs ranging from 1 V p-p to 2 V p-p and offers 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 SHA input maintains excellent performance for input frequencies up to 100 MHz and can be configured for single-ended or differential operation.
• Clock duty-cycle stabilizer maintains overall ADC performance over a wide range of clock pulse widths.
• OTR output bit indicates when the signal is beyond 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 ordering suffix RL7 corresponds to tape and reel packaging when sourcing components. Confirm that the BCPZ designation aligns with the required lead-free and RoHS compliance standards for your manufacturing process. Ensure the -80 speed grade matches the system timing requirements before finalizing procurement orders.

Selection Notes

Select this component when a 14-bit resolution and 80 MSPS sampling rate are required within a single 3 V supply constraint. Consider the AD9245BCPZRL7-80 for applications needing differential inputs with a 500 MHz bandwidth. Evaluate the power consumption of 366 mW against thermal management capabilities in the target design environment.

Part Context

This part belongs to the AD9245 series, which includes variants with different sampling rates such as 20 MSPS, 40 MSPS, and 65 MSPS. The AD9245 is pin-compatible with the AD9215, AD9235, and AD9236, allowing simplified migration from lower resolutions and speeds. The device is fabricated on an advanced CMOS process and housed in a 32-lead LFCSP package.

Replacement Considerations

The AD9245BCPZ-65 serves as a direct substitute if a lower sampling rate of 65 MSPS is acceptable. Designers migrating from 10-bit converters may consider the AD9215, AD9235, or AD9236 due to pin compatibility, though resolution and speed differences must be accounted for in the system design.

FAQ

Does the AD9245 guarantee no missing codes?

Yes, the AD9245 uses output error correction logic to guarantee no missing codes over the full operating temperature range.

What is the function of the OTR pin?

The OTR (Out-of-Range) output bit indicates when the analog input signal exceeds the selected input range.

Can the AD9245 operate with single-ended inputs?

Yes, the wide bandwidth, truly differential SHA allows configuration for single-ended applications in addition to differential operation.