1. General description
The 74HC4852; 74HCT4852 are dual single-pole quad-throw analog switches (SP4T) suitable
for use in analog or digital 4:1 multiplexer/demultiplexer applications. Each switch features four
independent inputs/outputs (nY0, nY1, nY2 and nY3) and a common input/output (nZ). A digital
enable input (E) and two digital select inputs (S0 & S1) are common to both switches. When E is
HIGH, the switches are turned off. The device features injection-current effect control. This allows
signals at disabled analog input channels to exceed the supply voltage without affecting the signal
of the enabled analog channel, eliminating the need for external diode/resistor networks typically
used to keep the analog channel signals within the supply-voltage range. Inputs include clamp
diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of
VCC.
2. Features
• Injection-current cross coupling < 1 mV/mA
• Wide supply voltage range from 2.0 V to 6.0 V for 74HC4852
• ESD protection:
• HBM JESD22-A114E exceeds 2000 V
• CDM JESD22-C101C exceeds 1000 V
• Latch-up performance exceeds 100 mA per JESD 78 Class II level A
• Low ON-state resistance:
• 400 Ω (typical) at VCC = 2.0 V
• 215 Ω (typical) at VCC = 3.0 V
• 120 Ω (typical) at VCC = 3.3 V
• 76 Ω (typical) at VCC = 4.5 V
• 59 Ω (typical) at VCC = 6.0 V
3. Applications
• Analog multiplexing and demultiplexing
• Digital multiplexing and demultiplexing
• Signal gating