ADIS16362SLASHPCBZ datasheet(17/20 Pages) AD

17 / 20 page

ADIS16362

Rev. 0 | Page 17 of 20

APPLICATIONS INFORMATION

INSTALLATION/HANDLING

For ADIS16362 installation, use the following two-step process:

Secure the baseplate using machine screws.

Press the connector into its mate.

For removal,

Gently pry the connector from its mate using a small slot

screwdriver.

Remove the screws and lift the part up.

Never attempt to unplug the connector by pulling on the plastic

case or baseplate. Although the flexible connector is very reliable

in normal operation, it can break when subjected to unreasonable

handling. When broken, the flexible connector cannot be repaired.

The AN-1041 Application Note provides more information

about developing an appropriate mechanical interface design.

GYROSCOPE BIAS OPTIMIZATION

The factory calibration addresses initial bias errors along with

temperature-dependent bias behaviors. Installation and certain

environmental conditions can introduce modest bias errors.

The precision autonull command (GLOB_CMD[4]) provides a

simple predeployment method for correcting these errors to an

accuracy of approximately 0.008°/sec, using an average of 30 sec.

Averaging the sensor output data for 100 sec can provide incre-

mental performance gains, as well. Controlling device rotation,

power supply, and temperature during these averaging times

helps to ensure optimal accuracy during this process. Refer to

the AN-1041 Application Note for more information about

optimizing performance.

INPUT ADC CHANNEL

The AUX_ADC register provides access to the auxiliary ADC

input channel. The ADC is a 12-bit successive approximation

converter that has an input circuit equivalent to the one shown

in Figure 15. The maximum input is 3.3 V. The ESD protection

diodes can handle 10 mA without causing irreversible damage.

The on resistance (R1) of the switch has a typical value of 100 Ω.

The sampling capacitor, C2, has a typical value of 16 pF.

VCC

Figure 15. Equivalent Analog Input Circuit

(Conversion Phase: Switch Open,

Track Phase: Switch Closed)

INTERFACE PRINTED CIRCUIT BOARD (PCB)

The ADIS16362/PCBZ includes one ADIS16362BLMZ and

one interface PCB. The interface PCB simplifies the process of

integrating the ADIS16362BMLZ into an existing processor

system.

J1 and J2 are dual-row, 2 mm (pitch) connectors that work with

a number of ribbon cable systems, including 3M Part Number

152212-0100-GB (ribbon crimp connector) and 3M Part Number

3625/12 (ribbon cable). Figure 16 provides a hole pattern design

for installing the ADIS16362BMLZ and the interface PCB onto

the same surface. Figure 17 provides the pin assignments for each

connector. The pin descriptions match those listed in Table 5.

The ADIS16362 does not require external capacitors for normal

operation, so the interface PCB does not use the C1/C2 pads

(not shown in Figure 16).

23.75

21.24

30.10

27.70

1.20

NOTES

1. DIMENSIONS IN MILLIMETERS.

Figure 16. Physical Diagram for the ADIS16362/PCBZ

AUX_ADC

AUX_DAC

DNC

DIO2

DNC

DIO1

DIO4

DIO3

GND

RST

GND

VCC

GND

VCC

DIN

DOUT

SCLK

DNC

Figure 17. J1/J2 Pin Assignments

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