TC7MZ4051FK

The TC7MZ4051FK/4052/4053FK are high-speed, low-voltage drive analog multiplexer/demultiplexers using silicon gate CMOS technology. In 3 V and 5 V systems these can achieve high-speed operation with the low power dissipation that is a feature of CMOS.

The TC7MZ4051FK/4052/4053FK offer analog/digital signal selection as well as mixed signals. The 4051 has an 8-channel configuration, the 4052 has an 4-channel × 2 configuration, and the 4053 has a 2-channel × 3 configuration.

The switches for each channel are turned ON by the control pin digital signals.

Although the control signal logical amplitude (V_CC − GND) is small, the device can perform large-amplitude (V_CC − V_EE) signal switching.

For example, if V_CC = 3 V, GND = 0 V, and V_EE = −3 V, signals between −3 V and +3 V can be switched from the logical circuit using a single 3 V power supply.

All input pins of TC7MZ4051FK are equipped with a newly developed input protection circuit that avoids the need for a diode on the plus side (forward side from the input to the V_CC). As a result, for example, 5 V signals can be permitted on the inputs even when the power supply voltage to the circuits is off. As a result of this input power protection, the TC7MZ4051/4052/4053FK can be used in a variety of applications, including in the system which has two power supplies, and in battery backup circuits.