AD9241ASZRL

Overview

The AD9241ASZRL is a monolithic 14-bit, 1.25 MSPS analog-to-digital converter manufactured by Analog Devices Inc. It operates on a single +5 V supply and consumes approximately 60 mW of power. The device features a differential pipelined architecture with digital output error correction logic to guarantee no missing codes across the full operating temperature range. It integrates an on-chip sample-and-hold amplifier and a programmable voltage reference. The ADC provides straight binary output data and includes an out-of-range indicator. It is housed in a 44-pin MQFP package.

Feature Summary

• Integrates a high-performance, low-noise sample-and-hold amplifier and a programmable voltage reference on a single chip.
• Utilizes a multistage differential pipelined architecture with digital output error correction logic to ensure no missing codes over the full operating temperature range.
• Features flexible analog input configuration supporting both single-ended and differential inputs with varying spans.
• Includes an out-of-range (OTR) signal to indicate overflow conditions.

Applications

• Imaging systems
• Medical imaging equipment
• Data acquisition systems

Procurement Notes

Verify that the component matches the exact part number AD9241ASZRL. Confirm the manufacturer is Analog Devices Inc. Check for physical damage or signs of electrostatic discharge before installation. Ensure proper handling procedures are followed due to ESD sensitivity.

Selection Notes

Select this component when a 14-bit resolution and 1.25 MSPS sampling rate are required. Consider its single +5 V supply operation and low power consumption of 60 mW. Evaluate the need for integrated reference and sample-and-hold capabilities versus external components. Assess compatibility with +3 V and +5 V CMOS logic families for digital interfacing.

Part Context

The AD9241 belongs to the AD924x series, which includes the AD9240 and AD9243. These devices share similar architectures but differ in maximum conversion rates. The AD9241 specifically offers a throughput of 1.25 MSPS, distinguishing it from higher-speed variants like the AD9240.

Replacement Considerations

The AD9240ASZRL and AD9243ASZRL are pin-compatible members of the same family. Verify if the different maximum conversion rates of these alternatives meet the specific application requirements before substitution.

FAQ

What is the pipeline delay of the AD9241?

The AD9241 has a pipeline delay of three clock cycles.

Can the AD9241 operate with single-ended inputs?

Yes, the versatile onboard sample-and-hold amplifier can be configured for either single-ended or differential inputs.

What is the typical input referred noise at VREF = 2.5 V?

The typical input referred noise is 0.36 LSB rms when VREF is set to 2.5 V.