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12-Bit 325MS/s Dual Current Steering DAC - SMIC 55nm LL

The S3DAIQ325M12BSM55LL employs a current steering architecture with differential current outputs. It uses 6 linear bits and 6 binary bits, all of which are generated from within the current source array.

This segmentation results in an excellent static performance and reduced glitch energy at the output. This also ensures parasitics within the DAC are minimized. Furthermore, the distortion at the output is greatly reduced by using propriety latch architecture.

This 12-bit Dual DAC features an excellent static performance that includes ±0.5LSB DNL and ±1.0LSB INL for typical conditions.

Dynamic performance highlights considering a signal frequency of 10MHz and 325MS/s conversion rate include an SNR= 68dB and an SFDR=70dBc.

特色

55nm SMIC LL Process, 6 Metals Used
3.3V and 1.2V Supplies
Sampling Rate up to 325MS/s
2.6Vpp Differential Output Range
DNL= 0.5LSB; INL<1.0LSB.Typ
High Performance for Fout=10MHz

SNR> 68dB, SFDR=70dB

Stand-By and Power-Down Modes
24mW Power Consumption at 2.5mA output current
Die Area pre-shrink: 0.505mm2

优势

The S3DAIQ325M12BSM55LL is designed for operation up to 325MS/s. The S3DAIQ325M12BSM55LL is designed in a 55nm logic process, which is ideal for integration with a DSP engine, and can be cost-effectively ported across foundries and process nodes upon request.