Maxim MAX1402 manual Register BIT Name Description

Models: MAX1402

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Evaluate: MAX1400/MAX1402

MAX1402 Evaluation Kit/Evaluation System

Table 4. Guide to Register Bit Functions

REGISTER

BIT NAME

DESCRIPTION

 

 

 

COMMS

0/DRDY

Start bit is zero; DIN pin must be 1 when idle

 

 

 

 

RS2–RS0

Register select for subsequent operation

 

 

 

 

R/W

Selects subsequent read or write operation

 

 

 

 

RESET

Causes software reset when set to 1

 

 

 

 

STDBY

Activates standby power-down mode when set to 1

 

 

 

 

FSYNC

Inhibits the A/D converter when set to 1

 

 

 

GS1

A1

Selects the active channel

 

 

 

 

A0

Selects the active channel

 

 

 

 

MF1

Selects the data output rate

 

 

 

 

MF0

Selects the data output rate

 

 

 

 

CLK

Selects the CLKIN frequency

 

 

 

 

FS1

Select the data output rate

 

 

 

 

FS0

Select the data output rate

 

 

 

 

FAST

Selects SINC1 filter instead of SINC3

GS2

SCAN

Enables the scanning sequences

 

 

 

 

M1

Enables the CalGain channel

 

 

 

 

M0

Enables the CalOff channel

 

 

 

 

BUFF

Enables the input buffers

 

 

 

 

DIFF

Selects differential input pairs

 

 

 

 

BOUT

Enables the transducer burn-out test currents

 

 

 

 

IOUT

Enables the OUT1 and OUT2 current sources (MAX1402 only)

 

 

 

 

X2CLK

Selects the CLKIN frequency

 

 

 

SFR

MDOUT

Changes the DOUT and INT pins to provide raw modulator output

 

 

 

 

FULLPD

Activates full power-down mode. Use hardware reset to restore normal operation.

 

 

 

 

 

All other bits in SFR must be zero

 

 

 

TF1, 2, 3

G2–G0

Select the PGA Gain

 

 

 

 

U/B

Selects unipolar or bipolar coding

 

 

 

 

D3–D0

Select the offset correction DAC code; D3 = sign, D2–D0 = magnitude

 

 

 

DATA

D17–D0

Raw code value

 

 

 

 

DS1

Value of the DS1 input pin (MAX1402 only)

 

 

 

 

DS0

Value of the DS0 input pin (MAX1402 only)

 

 

 

 

CID2–CID0

Channel identification tag

 

 

 

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Maxim MAX1402 manual Register BIT Name Description

MAX1402 specifications

The Maxim MAX1402 is a highly integrated, low-power 12-bit analog-to-digital converter (ADC) that boasts high performance and versatility, making it ideal for a range of applications including industrial control, portable instrumentation, and medical devices. This component incorporates advanced technology aimed at providing accurate and efficient signal processing.

One of the primary features of the MAX1402 is its high resolution of 12 bits, which allows it to effectively convert analog signals into digital data with a level of detail suitable for precision measurements. The device operates at a sampling rate of up to 1 MSPS (million samples per second), allowing it to capture rapid changes in input signals, making it particularly adept for applications requiring real-time data acquisition.

Another notable characteristic is its low power consumption. With a typical operating current of only 500 µA, the MAX1402 is well-suited for battery-operated devices, where energy efficiency is paramount. The low power feature, combined with the ability to run off a single supply voltage, enhances the device's adaptability in various circuit designs.

The MAX1402 features an onboard sample-and-hold circuit, which facilitates effective signal stability during the conversion process. This is crucial in preventing distortion from high-frequency signals and helps in achieving precise measurement results even in noisy environments.

The converter supports a differential input configuration, which improves common-mode rejection and enhances the overall performance in industrial applications where noise and interference are common. Additionally, the MAX1402 includes an internal reference voltage source, simplifying system design by eliminating the need for external components.

The device is also equipped with a serial interface, which allows for straightforward integration with microcontrollers and other digital systems. This feature streamlines the process of data transmission, enabling seamless communication and control within various systems.

With its compact design and robust performance, the MAX1402 addresses the need for accurate, low-power ADCs in modern electronic applications. Its combination of features, such as 12-bit resolution, 1 MSPS sampling rate, low power consumption, and integrated functionality, positions it as a reliable choice for engineers and designers seeking to enhance their measurement and control systems.