MAX4592CSE+

Switch Time (Ton, Toff) (Max):	80ns, 45ns
Base Part Number:	MAX4592
Supplier Device Package:	16-SO
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Operating Temperature:	0°C ~ 70°C (TA)
Crosstalk:	-85dB @ 10MHz
Current - Leakage (IS(off)) (Max):	100pA
Channel Capacitance (CS(off), CD(off)):	9pF, 9pF
Charge Injection:	2pC
-3db Bandwidth:	--
Series:	--
Voltage - Supply, Dual (V±):	--
Voltage - Supply, Single (V+):	3 V ~ 16 V
Channel-to-Channel Matching (ΔRon):	500 mOhm
On-State Resistance (Max):	20 Ohm
Number of Circuits:	4
Multiplexer/Demultiplexer Circuit:	1:1
Switch Circuit:	SPST - NO
Part Status:	Active
Packaging:	Tube

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Introduction

The MAX4592CSE+ is a monolithic CMOS analog multiplexer designed for switching applications. The MAX4592CSE+ offers an ideal solution for applications requiring selectable analog input paths or multiplexed signal selection and switching. Its low power dissipation and high speed operation make it suitable for use in a variety of interfacing applications, including analog input selection and data multiplexing. It is also used for level shifting and adjustable current routing applications.

Applications

The MAX4592CSE+ has an analog input switch that provides two sigma-delta, temperature-stabilized, digitally controlled analog switches. It is capable of controlling the analog inputs of up to 128 different channels and can be used in a variety of data conversion, data acquisition, and system detection applications.The maximum output current of the MAX4592CSE+ is 50mA with a minimum on resistance of 0.2 ohm. This makes the device an ideal choice for controlling the analog signals in applications such as medical equipment, automotive, audio, video, and industrial control systems. Furthermore, the MAX4592CSE+ is equipped with an analog input selection pin for selecting between various digital thresholds and an adjustable I-sense pin to control the current limited in the analog input switch.

Working Principle

The MAX4592CSE+ allows the user to select up to 128 distinct analog inputs discretely. The user can select the desired input via a simple 5-bit digital control word. When this is done, the MAX4592CSE+ multiplexer automatically starts an internal integration process. During the integration process, the MAX4592CSE+ subtracts the voltage on the common input of the selectively connected analog input from the voltage on the dynamically selected differential inputs. The internal startup time adheres to the delays imposed by the voltage settling of the analog signals to ensure accurate and rapid data capture.At the end of the integration process, the MAX4592CSE+ examines the integrated signal and detects whether the switch has reached the selectable high or low option. If the switch has a logical low, the output pin NC becomes high, and if the switch has a logical high, the output pin NC becomes low.Also, the MAX4592CSE+ has an adjustable, current-limited I-sense pin. This pin is used to adjust the input threshold of the multiplexer. By adjusting this pin, the user can increase or decrease the sensitivity of the multiplexer.

Limitations

The MAX4592CSE+ is limited in that it only supports up to 128 different analog inputs. Additionally, it has a maximum on-resistance of 0.2 ohm and a maximum output current of 50mA. These limits may be unsuitable for applications that require more than 128 inputs, higher current levels, or higher precision level shifting.

Conclusion

The MAX4592CSE+ is an ideal solution for applications requiring selectable analog input paths or multiplexed signal selection and switching. It is a low power, low noise, high speed analog multiplexer that provides a convenient interface for data conversion and data acquisition. Its adjustable I-sense pin makes it easy to adjust the sensitivity of the multiplexer for optimal performance. However, the MAX4592CSE+ has some limits, making it unsuitable for applications requiring higher precision or higher current levels.

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