AD9245BCPZRL7-40

Overview

The AD9245BCPZRL7-40 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 operates at a maximum sampling rate of 40 MSPS with a differential input bandwidth of 500 MHz. The device 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. Key electrical specifications include a Signal-to-Noise Ratio (SNR) of 73.3 dBc at Nyquist, a Spurious-Free Dynamic Range (SFDR) of 83.0 dBc, and a Differential Nonlinearity (DNL) of ±0.5 LSB. Power consumption is 165 mW at the maximum sampling rate.

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 amplifier maintains excellent performance for input frequencies up to 100 MHz and supports both single-ended and differential configurations.
• Integrated clock duty-cycle stabilizer compensates for wide variations in clock pulse widths while maintaining overall ADC performance.
• Flexible analog input configuration allows user-selectable input ranges from 1 V p-p to 2 V p-p and supports offset binary or two's complement data formats.

Applications

• Medical imaging equipment
• IF sampling in communications receivers
• WCDMA, CDMA-One, CDMA-2000, and TDS-CDMA systems
• Battery-powered instruments and hand-held scopemeters
• Power-sensitive military applications

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the package type and reel quantity. Ensure that the component meets the required RoHS compliance standards for your region. Cross-reference the datasheet revision history to confirm that the technical specifications align with your design requirements before finalizing procurement.

Selection Notes

Select this component when a 14-bit resolution and 40 MSPS sampling rate are required within a single 3 V supply system. Consider the AD9245BCPZRL7-40 for designs needing a 500 MHz analog input bandwidth and low power consumption of 165 mW. Verify compatibility with 2.5 V or 3.3 V logic families using the separate digital output driver supply. Ensure the application benefits from the integrated on-chip reference and sample-and-hold amplifier.

Part Context

The AD9245BCPZRL7-40 belongs to the AD9245 family of high-speed, low-power analog-to-digital converters manufactured by Analog Devices Inc. This series includes variants with different maximum sampling rates, such as 20 MSPS, 65 MSPS, and 80 MSPS. All members share the same pinout and architectural features, allowing for simplified migration between different speed grades while maintaining 14-bit resolution and single 3 V supply operation.

Replacement Considerations

The AD9245BCPZ-20, AD9245BCPZ-65, and AD9245BCPZ-80 are pin-compatible alternatives within the same family. These parts offer different maximum sampling rates but maintain identical pinouts and functional characteristics. Select an alternative based on whether the specific sampling rate requirement can be met by a lower or higher speed variant without compromising system performance.