MAX5732AUTN+T

Reference Type:	External
Base Part Number:	MAX5732
Supplier Device Package:	56-TQFN (8x8)
Package / Case:	56-WFQFN Exposed Pad
Operating Temperature:	0°C ~ 85°C
Architecture:	Pipelined
INL/DNL (LSB):	±4, ±1 (Max)
Voltage - Supply, Digital:	2.7 V ~ 5.25 V
Voltage - Supply, Analog:	5V
Series:	--
Data Interface:	SPI, DSP
Differential Output:	No
Output Type:	Voltage - Buffered
Settling Time:	20µs (Typ)
Number of D/A Converters:	32
Number of Bits:	16
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The MAX5732AUTN+T is a digital to analog converter (DAC) designed for applications in the data acquisition and control fields. This device is supplied in the standard 8-pin small outline integrated circuit (SOIC) package and provides true 8-bit resolution with a maximum output voltage of 30V. The MAX5732AUTN+T is also equipped with advanced features to improve its overall performance and flexibility. These include an integrated auto-zeroing/auto-trapping circuit for noise reduction and improved accuracy, an integrated programmable reference voltage source, and an integrated temperature sensor for measuring board temperatures.

Inputs

The MAX5732AUTN+T features two data input ports, allowing it to accept 8-bit digital word inputs from both a master controller and an external microcontroller. The master controller is responsible for providing the necessary clock and control signals while the external microcontroller is responsible for generating the 8-bit Digital Word inputs. Both data inputs must be synchronized in order to ensure accurate conversion from digital to analog.

Voltage Reference

The MAX5732AUTN+T utilizes an integrated programmable bias voltage source as its reference voltage. This voltage source can be programmed via a digital word input to provide a reference voltage between 1.25V and 5.0V, allowing for flexible range operation. Additionally, the internal bias voltage can be overridden by an external voltage reference applied to the VREF pin.

Auto-Zeroing/Auto-Trapping Circuitry

The MAX5732AUTN+T features an advanced auto-zeroing/auto-trapping circuitry as part of features to improve overall performance and accuracy. This circuitry monitors the output voltage and automatically adjusts the voltage reference level to reduce noise and improve accuracy. The auto-zeroing/auto-trapping circuit is triggered whenever the data inputs change, which allows for quick and accurate conversion from digital to analog without the need for calibration.

Temperature Compensation

Another advanced feature of the MAX5732AUTN+T is its integrated temperature sensor. This temperature sensor measures board temperatures in order to compensate for any environmental fluctuations that may reduce accuracy or stability. This temperature compensation can be adjusted via a setting in the internal control registers, allowing for maximum flexibility in adapting the temperature compensation to the specific application.

Outputs

The MAX5732AUTN+T has two output ports which can provide digital-to-analog converted signals up to the maximum voltage of 30V. Each port features an internal protection circuit to protect against short circuits and is equipped with an adjustable output current limit. These features ensure that the output signals remain accurate and that the circuits will not be damaged due to excessive current.

Conclusion

The MAX5732AUTN+T digital to analog converter (DAC) is a highly advanced device, featuring an integrated programmable reference voltage source, auto-zeroing/auto-trapping circuitry, and an integrated temperature sensor for temperature compensation. This all-in-one DAC is suitable for a variety of applications in the data acquisition and control fields due to its flexibility and advanced features.

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