AD9240ASZRL

Overview

The AD9240ASZRL is a monolithic 14-bit, 10 MSPS analog-to-digital converter manufactured by Analog Devices Inc. It operates on a single +5 V supply and dissipates approximately 285 mW of power. The device features an internal sample-and-hold amplifier and voltage reference, supporting both differential and single-ended input configurations. It utilizes a multistage differential pipelined architecture with digital output error correction logic to ensure no missing codes across the operating temperature range. The component is housed in a 44-lead MQFP package.

Feature Summary

• Monolithic integration of a 14-bit ADC with an on-chip high-performance sample-and-hold amplifier and programmable voltage reference.
• Multistage differential pipelined architecture incorporating digital output error correction logic for guaranteed linearity.
• Flexible analog input structure allowing configuration for either single-ended or differential inputs with varying spans.
• Configurable digital outputs capable of interfacing directly with +3 V and +5 V CMOS logic families.

Applications

• Direct-IF down conversion in communication systems
• Imaging systems requiring high-resolution data acquisition
• Medical instrumentation utilizing precision analog signal processing

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm packaging type and environmental compliance status. Ensure that the selected variant matches the required thermal and electrical specifications for the intended application environment before finalizing procurement orders.

Selection Notes

Select this component when a complete 14-bit resolution at 10 MSPS throughput is required within a single chip solution. Consider the flexible input span options and low power consumption characteristics suitable for battery-operated or thermally constrained designs. Evaluate the interface compatibility with downstream digital logic families during the system design phase.

Part Context

The AD9240ASZRL belongs to the AD9240 family of high-speed analog-to-digital converters produced by Analog Devices Inc. This series is designed to provide hybrid-level performance using cost-effective CMOS processes. The ASZRL designation indicates a specific tape and reel packaging option within the broader product line.

Replacement Considerations

Consult official Analog Devices documentation for verified pin-compatible or functionally equivalent alternatives. Cross-reference specifications such as resolution, sampling rate, and power dissipation to ensure compatibility with existing system requirements.

FAQ

What is the pipeline latency of the AD9240?

The AD9240 has a pipeline delay or latency of three clock cycles between the input sampling event and the appearance of the corresponding digital data at the output pins.

How is the speed and power of the AD9240 configured?

The maximum conversion rate and associated power dissipation can be adjusted by connecting a resistor (RBIAS) to the BIAS pin, allowing for optimization based on specific application needs.

Can the AD9240 accept single-ended inputs?

Yes, the versatile onboard sample-and-hold amplifier allows the device to be configured for single-ended inputs, although differential inputs are often preferred for optimal distortion performance.