ADIS16060

Rev. 0 | Page 10 of 12

BASIC OPERATION

The ADIS16060 is designed for simple integration into indus-

trial system designs, requiring only a 5 V power supply, two

mode select lines, and three serial communications lines. The

SPI handles all digital I/O communication in the ADIS16060.

SERIAL PERIPHERAL INTERFACE (SPI)

The ADIS16060 SPI port includes five signals: Mode Select 1

(MSEL1), Mode Select 2 (MSEL2), serial clock (SCLK), data

input (DIN), and data output (DOUT). The MSEL1 line is used

when reading data out of the sensor (DOUT), and the MSEL2

line is used when configuring the sensor (DIN).

Selecting Output Data

Refer to Table 5 to determine the appropriate DIN bit sequence

based on the required data source. Table 2 and Figure 3 provide

the necessary timing details for the input configuration sequence.

After the MSEL2 goes high, the last eight DIN bits are loaded

into the internal control register, which represents DB0 to DB7

in Table 5.

Output Data Access

Use Table 2 and Figure 2 to determine the appropriate timing

considerations for reading output data.

OUTPUT DATA FORMATTING

All of the output data is in an offset-binary format, which in

this case, means that the ideal output for a zero rate condition is

8192 codes. If the sensitivity is equal to +0.0122°/sec/LSB, a rate

of +10°/sec results in a change of 820 codes, and a digital rate

output of 9012 codes. If an offset error of −20°/sec is introduced,

the output is reduced by 1639 codes (if typical sensitivity is

assumed), resulting in a digital rate output of 6552 codes.

ADC CONVERSION

The internal successive approximation ADC begins the conversion

process on the falling edge of MSEL1 and starts to place data

shown in Figure 2. The entire conversion process takes 20 SCLK

cycles. After MSEL1 goes high, the acquisition process starts in

preparation for the next conversion cycle.

Table 5. DIN Configuration Bit Assignments

Action

DB7

DB6

DB5

DB4

DB3

DB2

DB1

DB0

Measure Angular Rate (Gyro)

0

0

1

0

0

0

0

0

Measure Temperature

0

0

0

1

0

0

0

0

Measure AIN2

1

0

0

0

0

0

0

0

Measure AIN1

0

1

0

0

0

0

0

0

Set Positive Self-Test and Output for Angular Rate

0

0

1

0

0

0

1

0

Set Negative Self-Test and Output for Angular Rate

0

0

1

0

0

0

0

1