AD9117BCPZ

Overview

The AD9117BCPZ is a dual-channel, 14-bit low-power digital-to-analog converter (DAC) from Analog Devices. It operates at sample rates up to 125 MSPS and features TxDAC architecture optimized for transmit signal paths. The device supports flexible power supply voltages ranging from 1.8 V to 3.3 V, with power dissipation of 232 mW at 125 MSPS and 191 mW at 10 MSPS. Key performance metrics include an SFDR of 86 dBc at 1 MHz output and -162 dBc/Hz noise spectral density. It includes two on-chip auxiliary DACs, adjustable output common-mode levels, and interfaces via CMOS inputs.

Feature Summary

• Dual 14-bit resolution with 125 MSPS maximum sampling rate
• Low power consumption: 232 mW at 125 MSPS, <3 mW in sleep mode
• High dynamic performance: 86 dBc SFDR at 1 MHz output
• Integrated internal reference and two auxiliary DACs

Applications

• Wireless infrastructures
• Picocell and femtocell base stations
• Medical instrumentation
• Ultrasound transducer excitation
• Signal generators and arbitrary waveform generators

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure correct package type and temperature range. Confirm RoHS compliance status and lead times with authorized distributors prior to procurement. Ensure proper ESD handling procedures are followed during storage and assembly due to the sensitivity of the semiconductor components.

Selection Notes

Select the AD9117BCPZ when 14-bit resolution and 125 MSPS speed are required for low-power applications. Compare against pin-compatible variants like the AD9114, AD9115, and AD9116 if lower resolution or cost constraints exist. Ensure the system design accommodates the 1.8 V to 3.3 V supply range and utilizes the adjustable output common-mode feature for optimal interfacing.

Part Context

The AD9117BCPZ belongs to the AD9114/AD9115/AD9116/AD9117 family of TxDAC converters. These devices share identical interfaces, packages, and pinouts, allowing for flexible upward or downward selection based on performance and cost requirements. This pin compatibility simplifies design upgrades or downgrades within communication systems without requiring PCB layout changes.

Replacement Considerations

Pin-compatible alternatives within the same family include the AD9114 (8-bit), AD9115 (10-bit), and AD9116 (12-bit). These parts offer reduced resolution but maintain the same footprint and interface, facilitating direct substitution if higher bit-depth is not required by the application.

FAQ

What is the maximum sampling rate of the AD9117BCPZ?

The AD9117BCPZ supports a maximum sampling rate of 125 MSPS.

How does the AD9117 handle output common-mode levels?

The output common-mode level is adjustable from 0 V to 1.2 V, allowing for easy interfacing with components that require common-mode levels greater than 0 V.

Does the AD9117BCPZ include auxiliary DACs?

Yes, the device integrates two on-chip auxiliary DACs for additional functionality such as biasing or calibration.