AD9246BCPZRL7-80

Overview

The AD9246BCPZRL7-80 is a monolithic, single-channel 14-bit analog-to-digital converter (ADC) from Analog Devices. It operates on a single 1.8 V analog supply and supports sampling rates up to 80 MSPS. The device features a high-performance sample-and-hold amplifier with a 650 MHz bandwidth and an integrated voltage reference. It utilizes a multistage differential pipeline architecture with output error correction logic to ensure accuracy and guarantee no missing codes across the full operating temperature range of -40°C to +85°C.

Feature Summary

• Features a patented differential sample-and-hold amplifier input that maintains excellent performance for input frequencies up to 225 MHz.
• Includes a clock duty cycle stabilizer to maintain overall ADC performance over a wide range of clock pulse widths.
• Supports flexible analog inputs with user-selectable ranges and offsets, including single-ended applications.
• Provides a standard serial port interface for configuring data formatting, enabling power-down modes, and selecting voltage reference modes.

Applications

• Ultrasound equipment
• IF sampling in communications receivers
• Battery-powered instruments
• Hand-held scopemeters

Procurement Notes

Verify the specific speed grade suffix matches the required conversion rate. Confirm the LFCSP_VQ package type and reel packaging details align with assembly requirements. Ensure the component meets RoHS standards and check for any specific environmental certifications required by the target application.

Selection Notes

Select this model when a 14-bit resolution and 80 MSPS sampling rate are sufficient for the design. Consider the AD9246BCPZRL7-105 or AD9246BCPZRL7-125 if higher throughput is needed, as they share pin compatibility. Evaluate the power consumption at the target clock frequency against system constraints.

Part Context

This component belongs to the AD9246 family of high-speed, low-power ADCs. It is designed to offer a migration path from 12-bit devices like the AD9233 while providing enhanced resolution. The part is suitable for applications requiring high dynamic range and low power consumption in compact form factors.

Replacement Considerations

The AD9246 is pin-compatible with the AD9233, allowing for simple migration from 12-bit to 14-bit designs. Other parts in the AD9246 series with different speed grades may serve as alternatives if sampling rate requirements differ.

FAQ

What digital data formats does the AD9246 support?

The AD9246 supports offset binary, Gray code, and two's complement data formats, which can be selected via the serial port interface or external pins.

How does the device handle variations in clock duty cycles?

The AD9246 includes a built-in clock duty cycle stabilizer (DCS) that compensates for wide variations in clock pulse widths while maintaining excellent overall ADC performance.

Is the AD9246 guaranteed to have no missing codes?

Yes, the device guarantees no missing codes over the full operating temperature range due to its multistage differential pipeline architecture with output error correction logic.