AD9235BRURL7-40

Overview

The AD9235BRURL7-40 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 ensure no missing codes across the 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. Key electrical specifications include a typical Signal-to-Noise Ratio (SNR) of 70.6 dBc at 2.4 MHz input frequency, a Spurious-Free Dynamic Range (SFDR) of 92.0 dBc, and a Differential Nonlinearity (DNL) of ±0.35 LSB at 25°C. Power consumption is typically 110 mW under sine wave input conditions.

Feature Summary

• Multistage differential pipelined architecture with output error correction logic for guaranteed linearity
• Integrated high-performance sample-and-hold amplifier (SHA) and voltage reference
• Clock duty cycle stabilizer (DCS) to maintain performance despite clock variations
• Flexible analog input configuration supporting both differential and single-ended modes

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current data sheet to confirm package type and reel specifications. Ensure compatibility with system power supplies and logic levels before integration. Cross-reference the part number with official distributor catalogs to validate availability and lead times. Confirm that the component meets all required environmental and regulatory standards for the intended deployment.

Selection Notes

Select this model when a 40 MSPS sampling rate and 12-bit resolution are required within a single 3 V supply design. Consider the AD9235 family variants if different throughput speeds or packaging options better suit the board layout constraints. Evaluate the internal reference capabilities to potentially reduce external component count compared to devices requiring external references.

Part Context

The AD9235BRURL7-40 belongs to the Analog Devices AD9235 family of 12-bit ADCs, which also includes -20 and -65 speed grades. This series is designed for applications requiring low power consumption and high dynamic range in compact form factors. The BRU designation indicates the TSSOP-28 package variant within the broader product line.

Replacement Considerations

Direct pin-compatible replacements within the same family include the AD9235BRUZ-20 and AD9235BRUZ-65, offering different sampling rates but identical interfaces. Verify that any substitute maintains the required 40 MSPS throughput and 12-bit accuracy specifications for the specific application context.