DG441 Monolithic, Quad SPST, CMOS Analog Switches

The DG441 and DG442 monolithic CMOS analog switches are drop-in replacements for the popular DG201A and DG202 series devices. They include four independent single pole single throw (SPST) analog switches, TTL and CMOS compatible digital inputs, and a voltage reference for logic thresholds.

These switches feature lower analog ON resistance (<85Ω) and faster switch time (tON <250ns) compared to the DG201A and DG202. Charge injection has been reduced, simplifying sample and hold applications.

The improvements in the DG441 series are made possible by using a high voltage silicon-gate process. An epitaxial layer prevents the latch-up associated with older CMOS technologies. The 44V maximum voltage range permits controlling 40VP-P signals. Power supplies may be single ended from +5V to +34V, symmetrical supplies from ±5V to ±22V or asymmetrical supplies limited to a maximum differential voltage of 44V with a V+ max of 34V or a V- max of -25V.

The four switches are bilateral, equally matched for AC or bidirectional signals. The ON resistance variation with analog signals is quite low over a ±5V analog input range. The switches in the DG441 and DG442 are identical, differing only in the polarity of the selection logic.

DG441 特点

ON Resistance (Max) 85Ω
Low Power Consumption (PD) <1.6mW
Fast Switching Action
- tON (Max) 250ns
- tOFF (Max, DG441) 120ns
Low Charge Injection
Upgrade from DG201A, DG202
TTL, CMOS Compatible
Single or Split Supply Operation
Pb-Free Plus Anneal Available (RoHS Compliant)

DG441 应用

Audio Switching
Battery Operated Systems
Data Acquisition
Hi-Rel Systems
Sample and Hold Circuits
Communication Systems
Automatic Test Equipment

DG441 芯片订购指南

芯片型号	产品状态	温度范围	封装尺寸图	潮湿敏感度等级MSL	美元价格US $
DG441DJZ	量产	工业级	16 Ld PDIP	N/A	0.73
DG441DVZ	量产	工业级	16 Ld TSSOP	1	0.71
DG441DVZ-T	量产	工业级	16 Ld TSSOP T+R	1	0.72
DG441DY	量产	工业级	16 Ld SOIC	1	0.81
DG441DY-T	量产	工业级	16 Ld SOIC T +R	1	0.81
DG441DYZ	量产	工业级	16 Ld SOIC	2	0.68
DG441DYZ-T	量产	工业级	16 Ld SOIC T +R	2	0.69
DG441DYZA	量产	工业级	16 Ld SOIC	2	0.68
DG441DYZA-T	量产	工业级	16 Ld SOIC T +R	2	0.69
DG441DJ	停产	工业级	16 Ld PDIP	N/A	N/A