DG442

Monolithic, Quad SPST, CMOS Analog Switches

Product Status: Mass Production(*)

OVERVIEW

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.

KEY FEATURES

  • 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)

PARAMETRICS

Parameters
DG442
Basic Information
生产状态
Mass Production(*)
器件/通道数量
4
开关或MUX
Switch
配置
NO
开关类型
SPST
RDS (ON)
50 Ω
泄漏
0.08 nA
源电容 (pf)
4
IS
15 µA
VCC (单) (最小值) (V)
5
VCC (单) (最大值) (V)
34
资质级别
Standard
TON (ns)
150
TOFF (ns)
110
电荷注入 (pC)
1
漏电容
16 pF
双电源电压 (最小值)
±5 V
双电源电压 (最大值)
±20 V
供电电压Vcc范围 (V)
+5 to +34, ±5 to ±20
CAN 采样
YES
温度范围
-40 to +85

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