Table 1.

Comparing the spurs characteristics with other DDSs.

Works	[9]	[10]	[19]	[20]	This Work
Power supply	3.3 V/1.8 V	3.3 V/1.8 V	N/A	2.5 V/1.2 V	2.5 V/1.2 V
Process [nm]	180 CMOS	180 CMOS	55 CMOS	90 CMOS	65 CMOS
Total area [mm2]	N/A	19.32 (1)	0.1 (1)	2 (1)	6.9/channel (1)
Structure	LDAC (2)	LDAC (2)	NLDAC (2)	Hybrid (2)	LDA (2)
No. of Channel	1	1	1	1	4
$f_s$ [MHz]	1000	2500	2000	1300	1000
Spur reducing	Auxiliary (3)	Auxiliary (3)	N/A	N/A	Automatic detection
SFDR [dB]	−59 (4)	−58 (4)	−55.1	−52	−59.9 (4)
Power	0.7 W@ 1 GHz (5)	1.9 W@ 1 GHz (5)	0.13 W@ 2 GHz (5)	0.35 W@ 1.3 GHz (5)	0.6 W/channel @1 GHz (5)

⁽¹⁾ Including pads. ⁽²⁾ NLDAC, LDAC and Hybrid are the abbreviations of nonlinear DAC, linear DAC and hybrid DAC respectively. ⁽³⁾ Spectrum analyzer and other instruments are required. ⁽⁴⁾ After reduced. ⁽⁵⁾ Total power consumption of DDS.