DG412FEUE+

Switch Time (Ton, Toff) (Max):	175ns, 145ns
Base Part Number:	DG412
Supplier Device Package:	16-TSSOP
Package / Case:	16-TSSOP (0.173", 4.40mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Crosstalk:	-105dB @ 1MHz
Current - Leakage (IS(off)) (Max):	250pA
Channel Capacitance (CS(off), CD(off)):	15pF, 47pF
Charge Injection:	5pC
-3db Bandwidth:	--
Series:	--
Voltage - Supply, Dual (V±):	±4.5 V ~ 20 V
Voltage - Supply, Single (V+):	9 V ~ 36 V
Channel-to-Channel Matching (ΔRon):	200 mOhm
On-State Resistance (Max):	35 Ohm
Number of Circuits:	4
Multiplexer/Demultiplexer Circuit:	1:1
Switch Circuit:	SPST - NO
Part Status:	Active
Packaging:	Tube

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Introduction

DG412FEU+ is a high-performance, current-mode, analog-interface switch from Texas Instruments. It provides user-programmable performance and wide flexibility for applications across industrial and consumer markets. The device integrates a multi-port switch function with integrated low voltage analog inputs, CMOS input/output protection, and DC power supply ranges. The device is supplied in the 2.5mm x 5mm QFN package.

Application Field

DG412FEU+ is a high-performance, current-mode, analog-interface switch that enables efficient performance, low cost, and long-term reliability. This device is ideal for various applications in industrial and consumer markets such as power-supply systems, communication systems, audio systems, and video systems. In particular, the DG412FEU+ is suitable for applications such as multiplexers, demultiplexers, multiplex switches, voltage monitors, and backlight control of LCD displays.

Features and Benefits

The DG412FEU+ has several features that make it suitable for use in a wide range of applications. It is designed to operate from a range of input voltages from –3V to +3V, allowing for flexibility in power supply design. Additionally, the device offers low on-resistance, high-frequency response, and low charge-injection characteristics. It also features 24-bit I2C interface, on-chip thermal shutdown, and current limiting. The benefits of using the DG412FEU+ include improved efficiency, cost savings, and long-term reliability. Additionally, it enables multiplexing of different channels while providing excellent noise immunity and low power consumption.

Working Principle

The DG412FEU+ is a current-mode device and utilizes a simplified 2-wire serial data interface compatible with I2C protocols. The device consists of a single switch, with a dedicated control pin for the enable/disable operation. The switch can be operated in either open circuit, constant current, or preset voltage mode. When the device is in open circuit mode, the switch is open, allowing no current to flow through. In constant current mode, the switch is always closed and the current can be controlled by the control voltage. In preset voltage mode, the control voltage is used to set a given threshold voltage which the current flow is measured against.

Conclusion

The DG412FEU+ is a high-performance, current-mode, analog-interface switch for industrial and consumer markets. It offers user-programmable performance, low voltage input, CMOS input/output protection, and DC power supply ranges. Additionally, it features a low on-resistance and high-frequency response, making it suitable for applications such as multiplexers, demultiplexers, multiplex switches, voltage monitors, and backlight control of LCD displays. The device is easy to use and can be operated in open circuit, constant current, or preset voltage modes. With its low power consumption and excellent noise immunity, the DG412FEU+ is the ideal choice for a wide range of applications.

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