AD9114BCPZRL7

Overview

The AD9114BCPZRL7 is a dual, low-power, 8-bit digital-to-analog converter (DAC) from Analog Devices. It operates at sample rates up to 125 MSPS and features differential current outputs with adjustable common-mode levels ranging from 0 V to 1.2 V. The device supports supply voltages between 1.8 V and 3.3 V, consuming approximately 220 mW at full speed. Key specifications include a settling time of 11.5 ns, spurious-free dynamic range (SFDR) of 86 dBc at 1 MHz output, and integrated internal reference capabilities.

Feature Summary

• Dual-channel architecture with 8-bit resolution and 125 MSPS update rate
• Low power consumption: 191 mW at 10 MSPS and <3 mW in sleep mode
• Adjustable output common-mode voltage from 0 V to 1.2 V for flexible interfacing
• Integrated LVCMOS clock input and single-port CMOS data interface

Applications

• Wireless infrastructure base stations
• Picocell and femtocell systems
• Medical instrumentation
• Ultrasound transducer excitation
• Portable signal generators

Procurement Notes

Verify the specific suffix RL7 indicates reel packaging when sourcing components. Confirm that the operating environment stays within the specified -40°C to +85°C temperature range. Ensure proper ESD precautions are taken during handling due to device sensitivity. Check RoHS compliance status against local regulatory requirements before integration into final assemblies.

Selection Notes

Select this component for applications requiring high linearity and low power in transmit signal paths. Compare DNL and INL performance against system requirements, noting post-calibration values offer improved accuracy. Consider the 40-lead LFCSP package dimensions for PCB layout constraints. Evaluate power supply noise rejection if operating in noisy environments.

Part Context

This part belongs to the TxDAC family, sharing pinouts with higher-resolution variants like the AD9115, AD9116, and AD9117. This compatibility allows for design flexibility based on resolution needs without changing the board layout. The AD9114 specifically targets cost-sensitive applications where 8-bit resolution is sufficient for the required dynamic range.

Replacement Considerations

Direct pin-compatible substitutes include the AD9115, AD9116, and AD9117 for increased resolution. Verify that the host system can support the additional bits if upgrading. No other direct functional replacements are documented in the provided datasheet.