AD9235BRUZRL7-40

Overview

The AD9235BRUZRL7-40 is a monolithic, single 3 V supply, 12-bit analog-to-digital converter (ADC) operating at a maximum sampling rate of 40 MSPS. It utilizes a multistage differential pipelined architecture with output error correction logic to guarantee no missing codes across the full industrial temperature range (-40°C to +85°C). The device features a high-performance sample-and-hold amplifier (SHA) and an on-chip voltage reference. It accepts differential or single-ended analog inputs with flexible input spans ranging from 1 V p-p to 2 V p-p. Digital outputs are available in offset binary or two's complement formats, supported by a separate DRVDD supply for 2.5 V or 3.3 V logic compatibility.

Feature Summary

• Multistage differential pipelined architecture with output error correction logic
• Integrated high-performance sample-and-hold amplifier (SHA) and voltage reference
• Flexible analog input configuration supporting differential or single-ended modes
• On-chip clock duty cycle stabilizer for maintaining performance under varying clock conditions

Applications

• Ultrasound equipment
• IF sampling in communications receivers
• Battery-powered instruments
• Hand-held scopemeters
• Low cost digital oscilloscopes

Procurement Notes

Verify that the ordering suffix RL7 corresponds to the reel packaging format as specified in the manufacturer's official documentation. Confirm that the -40 designation matches the required 40 MSPS sampling speed variant. Ensure the BRUZ package type aligns with the PCB footprint requirements. Cross-reference the specific revision level against the latest datasheet to confirm pinout and electrical parameter consistency before finalizing procurement orders.

Selection Notes

Select this component when a 12-bit resolution and 40 MSPS throughput are required within a single 3 V power supply system. Consider the AD9235 for designs needing integrated reference and SHA capabilities to reduce external component count. Evaluate the 28-lead TSSOP package constraints against board space limitations. Verify that the 7-cycle pipeline latency and 3.5 ns output delay fit the timing requirements of the downstream digital processing interface.

Part Context

The AD9235 series includes variants operating at 20 MSPS, 40 MSPS, and 65 MSPS. The AD9235BRUZRL7-40 specifically denotes the 40 MSPS version in a tape and reel configuration. This family shares a common pinout structure with the AD9214-65, facilitating potential upgrades from 10-bit systems. The device is fabricated using an advanced CMOS process suitable for industrial temperature applications.

Replacement Considerations

The AD9235 pinout is similar to the AD9214-65, allowing for simplified upgrade paths from 10-bit to 12-bit systems. Designers should verify that the replacement part maintains the same 28-lead TSSOP package dimensions and electrical characteristics to ensure mechanical and functional compatibility without requiring significant schematic modifications.