AD9142ABCPZ

Overview

The AD9142ABCPZ is a dual, 16-bit, high dynamic range digital-to-analog converter (DAC) from Analog Devices Inc. It supports a maximum sample rate of 1600 MSPS and operates within an industrial temperature range of -40°C to +85°C. The device features a flexible 16-bit LVDS interface with selectable 2×, 4×, or 8× interpolation filters. Key electrical specifications include a differential nonlinearity (DNL) of ±2.1 LSB and integral nonlinearity (INL) of ±3.7 LSB. It consumes approximately 1.8 W at full operating conditions and is housed in a 72-lead LFCSP package.

Feature Summary

• Dual-channel architecture with 16-bit resolution and 1600 MSPS update rate
• Integrated on-chip numeric control oscillator (NCO) for carrier placement
• Supports word and byte load modes via flexible 16-bit LVDS interface
• Includes selectable 2×, 4×, and 8× interpolation filters

Applications

• Wireless communications base stations (3G/4G, MC-GSM)
• Wideband point-to-point and LMDS/MMDS systems
• Software defined radios
• Transmit diversity and MIMO configurations

Procurement Notes

Verify the specific suffix 'RL' against official documentation to confirm reel packaging status. Ensure compatibility with required supply voltages (AVDD33, DVDD18, CVDD18) and check for any recent product change notifications regarding pinout or thermal characteristics before finalizing procurement.

Selection Notes

Select this component for applications requiring high dynamic range and low spurious performance up to the Nyquist frequency. Consider the integrated NCO and digital gain/phase adjustment features if direct conversion transmit architectures are utilized. Verify that the host system can support the required LVDS data rates and clock frequencies up to 575 MHz.

Part Context

This part belongs to the AD9142A TxDAC+ family, designed specifically for direct conversion transmit applications. It integrates features such as input signal power detection and emergency stop functions to protect downstream analog circuitry. The device is optimized for seamless interfacing with analog quadrature modulators.

Replacement Considerations

Consult the manufacturer's ordering guide for verified alternative part numbers within the same series. Ensure any substitute maintains compatible pinouts, voltage levels, and performance metrics such as SFDR and ACLR.