AD9125 Dual, 16-Bit, 1000 MSPS, TxDAC+® Digital-to-Analog Converter

Product Highlights Applications

The AD9125 is a dual, 16-bit, high dynamic range TxDAC+® digital-to-analog converter (DAC) that provides a sample rate of 1000 MSPS, permitting a multicarrier generation up to the Nyquist frequency. It includes features optimized for direct conversion transmit applications, including complex digital modulation, and gain and offset compensation. The DAC outputs are optimized to interface seamlessly with analog quadrature modulators, such as the ADL537x F-MOD series from Analog Devices, Inc. A 4-wire serial port interface allows programming/readback of many inter-nal parameters. Full-scale output current can be programmed over a range of 8.7 mA to 31.7 mA. The AD9125 comes in a 72-lead LFCSP.

Features and Benefits

Flexible CMOS interface allows dual-word, word, or byte load
Single-carrier W-CDMA ACLR = 80 dBc @ 122.88 MHz IF
Analog output: adjustable 8.7 mA to 31.7 mA, RL = 25 Ω to 50 Ω
Novel 2×/4×/8× interpolator/complex modulator allows carrier placement anywhere in the DAC bandwidth
Gain and phase adjustment for sideband suppression

Multi-chip synchronization interface
High performance, low noise PLL clock multiplier
Digital inverse sinc filter
Low power: 900 mW @ 500 MSPS, full operating conditions
72-lead, exposed paddle LFCSP

Digital to Analog Converters

IBIS Models

AD9125 IBIS Model .IBS

Data Sheets

Document	note
AD9125: Dual, 16-Bit, 1000 MSPS, TxDAC+ Digital-to-Analog Converter (Rev. 0)	PDF 883 kB

Application Notes

Document	note
AN-1093: Synchronization of Multiple AD9122 TxDAC+ Converters (Rev. 0)	PDF 208 kB

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
AD9125BCPZ Production	72 ld LFCSP (10x10mm, 6.0mm exposed pad)	OTH 168	-40 to 85C	35.29	30	Y
AD9125BCPZRL Production	72 ld LFCSP (10x10mm, 6.0mm exposed pad)	REEL 2000	-40 to 85C	0	30	Y