MAX1416EUE+

Number of A/D Converters:	1
Base Part Number:	MAX1416
Supplier Device Package:	16-TSSOP
Package / Case:	16-TSSOP (0.173", 4.40mm Width)
Operating Temperature:	-40°C ~ 85°C
Features:	PGA
Voltage - Supply, Digital:	5V
Voltage - Supply, Analog:	5V
Reference Type:	External
Architecture:	Sigma-Delta
Series:	--
Ratio - S/H:ADC:	--
Configuration:	MUX-PGA-ADC
Data Interface:	SPI
Input Type:	Differential
Number of Inputs:	2
Sampling Rate (Per Second):	500
Number of Bits:	16
Part Status:	Active
Packaging:	Tube

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Data Acquisition - Analog to Digital Converters (ADC)

The MAX1416EUE+ is an analog to digital converter (ADC) employing successive approximation register (SAR) architecture. It has 13 effective bits of resolution and is a low-power and low-spillage device. This converter is designed to interface with a variety of analog inputs and digital control signals. The ADC features a differential analog input, internal reference, successive approximation register, sample and hold, and synchronous serial interface.

Application Field of MAX1416EUE+

The primary application field of MAX1416EUE+ is medical instrumentation such as ECG and EEG machines. It can also be used in portable equipment, industrial instruments, audio processing systems, and instrumentation systems. The unit operates over an ambient temperature range of -40°C to +85°C and an input voltage range of 3V to 15V. It is designed for low-power operation and features a robust design for high temperature/reliability operation.

Working Principle

The working principle of the MAX1416EUE+ is based on the successive approximation register (SAR) architecture. The device consists of an analog-to-digital converter, sample and hold, and synchronous serial interface. The analog to digital converter takes the analog input signal and translates it into a digital representation. The sample and holds circuit captures the analog signal for processing and is triggered by the external clock. The synchronous serial interface provides the digital output of the converted analog signal.The device also provides an internal reference voltage, which sets the input range of the ADC. The reference voltage is connected to the SAR register, which is responsible for the successive approximation of the input signal to the target voltage. The sample and hold is clocked by an external clock signal and the target voltage is compared to the input voltage by the successive approximation register. A digital result is then provided at the synchronous serial interface.

Benefits of MAX1416EUE+

The MAX1416EUE+ provides numerous benefits to its users such as low power consumption, output noise, and high accuracy. The device consumes only 11 mA of quiescent current and is power supply tolerant up to 15V. The device also features an excellent noise rejection and is capable of rejecting 60 Hz line frequency noise. Additionally, it has an effective resolution of 13 bits over the operating temperature range of -40°C to +85°C. The device has a fixed-gain amplifier, which eliminates the need for external calibration and ensures the highest accuracy rate over the entire operating temperature range.

Conclusion

The MAX1416EUE+ is an analog to digital converter (ADC) employing SAR architecture. It is designed to interface with a variety of analog signals and digital control signals and provides excellent performance in medical instrumentation applications. The device operates over an ambient temperature range of -40°C to +85°C and an input voltage range of 3V to 15V. It features a sample and hold, synchronous serial interface, robust design, and low-power characteristics. Furthermore, it offers excellent noise rejection and high accuracy.

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