ITG-3200 INVENSENSE, ITG-3200 Datasheet - Page 16

• Manufacturer Part Number: ITG-3200
• Description: IC, GYRO, TRI-AXIS, +/-2000 DEG/S
• Manufacturer: INVENSENSE

Specifications of ITG-3200

• No. Of Axes: 3
• Sensor Case Style: QFN
• No. Of Pins: 24
• Supply Voltage Range: 2.1V To 3.6V
• Operating Temperature Range: -40°C To +85°C
• Interface: I2C, Serial
• Interface Type: I2C, Serial
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

5
5.1
5.2
The ITG-3200 consists of the following key blocks and functions:
5.3
The ITG-3200 consists of three independent vibratory MEMS gyroscopes, which detect rotational rate about the X
(roll), Y (pitch), and Z (yaw) axes. When the gyros are rotated about any of the sense axes, the Coriolis Effect causes a
deflection that is detected by a capacitive pickoff. The resulting signal is amplified, demodulated, and filtered to
produce a voltage that is proportional to the angular rate. This voltage is digitized using individual on-chip 16-bit
Analog-to-Digital Converters (ADCs) to sample each axis.
The full-scale range of the gyro sensors is preset to ±2000 degrees per second (°/s). The ADC output rate is
programmable up to a maximum of 8,000 samples per second down to 3.9 samples per second, and user-selectable low-
pass filters enable a wide range of cut-off frequencies.
Functional Overview
CPOUT
1
Block Diagram
Overview
Three-Axis MEMS Gyroscope with 16-bit ADCs and Signal Conditioning
Three-axis MEMS rate gyroscope sensors with individual 16-bit ADCs and signal conditioning
I
Clocking
Sensor Data Registers
Interrupts
Digital-Output Temperature Sensor
Bias and LDO
Charge Pump
2
C serial communications interface
20
Optional
CLOCK
Charge
X Gyro
Y Gyro
Z Gyro
Pump
VDD
Clock
13
ADC
ADC
ADC
Sensor
Temp
VLOGIC
ITG-3200 Product Specification
Bias & LDO
8
Conditioning
Conditioning
Conditioning
GND
Signal
Signal
Signal
ITG-3200
18
ADC
REGOUT
10
Factory Cal
Interrupt
Register
Register
Register
Sensor
Config
Status
FIFO
Document Number: PS-ITG-3200A-00-01.4
Revision: 1.4
Release Date: 03/30/2010
I
Interrupt
Interface
2
C Serial
12
23
24
9
16 of 39
INT
AD0
SCL
SDA