AD9214BRS-105

Overview

The AD9214BRS-105 is a 10-bit monolithic sampling analog-to-digital converter (ADC) operating at a maximum conversion rate of 105 MSPS. It features an on-chip track-and-hold circuit and requires only a single 3.3 V supply (2.7 V to 3.6 V). The device offers a 300 MHz analog bandwidth and supports either 1 V p-p or 2 V p-p differential input ranges via the DFS/GAIN pin. Digital outputs are TTL/CMOS compatible, with a separate DrVDD supply for logic interfacing. Power consumption is 285 mW at full speed, reducing to 30 mW in power-down mode.

Feature Summary

• Integrated pipeline architecture with on-chip track-and-hold and reference
• Single 3.3 V supply operation with separate digital driver supply
• Configurable analog input range and data format options
• Low power consumption with dedicated power-down mode

Applications

• Battery-powered instruments
• Hand-held scopemeters
• Low-cost digital oscilloscopes
• Ultrasound equipment
• Cable reverse path systems

Procurement Notes

Verify the specific suffix 'R' indicates the reel packaging variant compared to standard tube versions. Confirm the '-105' designation matches the required 105 MSPS sampling rate specification. Ensure the component meets industrial temperature range requirements if deployed in harsh environments. Cross-reference the ordering guide for any updated package or lead-free status changes.

Selection Notes

Select this model when a 105 MSPS sampling rate is required for high-speed signal acquisition. Consider the 1 V p-p or 2 V p-p input range flexibility based on the source signal amplitude. Evaluate the 28-lead SSOP package constraints against available PCB real estate. Verify that the system clock jitter remains below 3 ps rms to maintain optimal SNR performance.

Part Context

This component belongs to the AD9214 family of low-power, 10-bit ADCs from Analog Devices. It shares architectural similarities with the AD9215 but differs in package type and specific interface configurations. The series is designed for cost-sensitive applications requiring moderate resolution and high throughput without external drivers.

Replacement Considerations

The AD9214BRU-105 serves as a pin-compatible alternative in a TSSOP-28 package. Verify that the thermal characteristics and footprint differences between SSOP and TSSOP packages are acceptable for the existing design layout.