Increase range with external resistor
Z-axis (yaw rate) response
SPI digital output interface
High vibration rejection over wide frequency
2000 g-pow
1 kHz bandwidth
Selectable using external capacitor
Externally controlled self-test
Internal temperature sensor output
Dual auxiliary 14-bit ADC inputs
Absolute rate output for precision applications
5 V single-supply operation
8.2 mm × 8.2 mm × 5.2 mm package
−40°C to +105°C operation
RoHS compliant
ered shock survivability
Yaw Rate Gyroscope with SPI
ADIS16060
GENERAL DESCRIPTION
The ADIS16060 is a yaw rate gyroscope with an integrated
serial peripheral interface (SPI). It features an externally
selectable bandwidth response and scalable dynamic range.
The SPI port provides access to the rate sensor, an internal
emperature sensor, and two external analog signals (using
t
internal ADC). The digital data available at the SPI port is
proportional to the angular rate about the axis that is normal
to the top surface of the package.
An additional output pin provides a precision voltage reference.
digital self-test function electromechanically excites the sensor
A
to test the operation of the sensor and the signal-conditioning
circuits.
The ADIS16060 is available in an 8.2 mm × 8.2 mm × 5.2 mm,
16-
terminal, peripheral land grid array (LGA) package.
APPLICATIONS
Platform stabilization
Image stabilization
Guidance and control
Inertia measurement units
Robotics
AIN1
AIN2
FUNCTIONAL BLOCK DIAGRAM
FILTRATE
RATE
SENSOR
TEMPERATURE
SENSOR
MUX
V
CC
14-BIT
GND
Figure 1.
ADC
ADIS16060
DIGITAL
CONTRO L
SCLK
DIN
DOUT
MSEL1
MSEL2
07103-001
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Anal og Devices for its use, nor for any infringements of patents or ot her
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
Full-scale range over specifications range ±50 ±80 °/sec
Clockwise rotation is positive output,
= −40°C to +85°C
T
A
0.0110 0.0122 0.0134 °/sec/LSB
VCC = 4.75 V to 5.25 V ±3 %
Nonlinearity Best fit straight line 0.1 °/sec
NULL
Initial Nominal 0°/sec output is 8192 LSB −44 +44 °/sec
Change Over Temperature
3
VCC = 4.75 V to 5.25 V ±0.11 °/sec/°C
Turn-On Time Power on to ±0.5°/sec of final value 10 ms
Linear Acceleration Effect Any axis ±0.1 °/sec/g
Voltage Sensitivity VCC = 4.75 V to 5.25 V ±0.5 °/sec/V
NOISE PERFORMANCE
Rate Noise Density @ 25°C 0.04 °/sec/√Hz
FREQUENCY RESPONSE
3 dB Bandwidth (User-Selectable)
4
C
= 0 μF 1 1000 Hz
OUT
Sensor Resonant Frequency 14.5 kHz
SELF-TEST RESPONSE
Positive Self-Test
Negative Self-Test
5
5
See Table 5 +6226 LSB
See Table 5 −6226 LSB
TEMPERATURE SENSOR
Reading at 298 K 7700 8192 8684 LSB
Scale Factor Proportional to absolute temperature 0.034 K/LSB
LOGIC INPUTS
Input High Voltage, V
Input Low Voltage, V
Input Current, I
IN
INH
INL
0.7 × V
V
CC
0.8 V
Typically 10 nA −1 +1 μA
Input Capacitance, CIN (DIN) 8 pF
Input Capacitance, CIN (MSEL1, MSEL2 )
ANALOG INPUTS For VIN < V
5 pF
CC
Resolution 14 Bits
Integral Nonlinearity Best fit straight line −6 +6 LSB
Differential Nonlinearity No missing codes to 13 bits −1 +6 LSB
Offset Error −10 +10 mV
Offset Error Temperature Drift ±0.3 ppm/°C
Gain Error −40 +40 mV
Gain Error Temperature Drift ±0.3 ppm/°C
Input Voltage Range 0 V
CC
V
Leakage Current 1 nA
DIGITAL OUTPUTS
Output High Voltage, V
Output Low Voltage, V
OH
OL
I
= 500 μA VCC − 0.3 V
SOURCE
I
= 500 μA 0.4 V
SINK
CONVERSION RATE
Conversion Time 10 μs
Throughput Rate 100 kSPS
Rev. 0 | Page 3 of 12
Page 4
ADIS16060
www.BDTIC.com/ADI
Parameter Conditions Min
1
Typ MaxUnit
POWER SUPPLY All at TA = −40°C to +85°C
V
CC
4.75 5 5.25 V
VCC Quiescent Supply Current VCC @ 5 V, 50 kSPS sample rate 4.3 6.5 mA
Power Dissipation VCC @ 5 V, 50 kSPS sample rate 22 33 mW
TEMPERATURE RANGE Operation −40 +105 °C
1
All minimum and maximum specifications are guaranteed. Typical specifications are neither tested nor guaranteed.
2
Dynamic range is the maximum full-scale measurement range possible, including output swing range, initial offset, sensitivity, offset drift, and sensitivity drift at 5 V supply.
3
Defined as the output change from ambient to maximum temperature, or ambient to minimum temperature.
4
Frequency at which the response is 3 dB down from dc response. Bandwidth = 1/(2 × π × 200 kΩ × C
5
Self-test response varies with temperature.
OUT
). For C
= 0.01 μF, bandwidth = 80 Hz.
OUT
Rev. 0 | Page 4 of 12
Page 5
ADIS16060
www.BDTIC.com/ADI
TIMING SPECIFICATIONS
TA = 25°C, angular rate = 0°/sec, unless otherwise noted.
Table 2. Read/Output Sequence
Parameter Figure Reference Symbol Min Typ Max Unit
Serial Clock Frequency 2.9 MHz
Throughput Rate See Figure 2t
MSEL1 Falling to SCLK Low
MSEL1 Falling to SCLK Rising
SCLK Falling to Data Remains Valid See Figure 2t
MSEL1 Rising Edge to D
High Impedance
OUT
SCLK Falling to Data Valid See Figure 2t
Acquisition Time See Figure 2t
D
Fall Time See Figure 2t
OUT
D
Rise Time See Figure 2t
OUT
Data Setup Time See Figure 3t
SCLK Falling Edge to MSEL2 Rising Edge See Figure 3t
Data Hold Time See Figure 3t
1
Guaranteed by design. All input signals are specified with tR = tF = 5 ns (10% to 90% of VCC) and timed from a voltage level of 1.6 V. The 5 V operating range spans from
4.75 V to 5.25 V.
Timing Diagrams
t
CYC
MSEL1
t
SUCS
SCLK
DOUT
145
t
CSD
HIGH-Z
NOTE:
A MINIMUM OF 20 CLOCK CYCLES ARE REQUIRED F OR 14-BIT CO NVERSION.
Acceleration (Any Axis, Unpowered, 0.5 ms) 2000 g
Acceleration (Any Axis, Powered, 0.5 ms) 2000 g
VCC to GND −0.3 V to +6.0 V
VCC to GND −0.3 V to VCC + 0.3 V
Analog Input Voltage to GND −0.3 V to VCC + 0.3 V
Digital Input Voltage to GND −0.3 V to +7.0 V
Digital Output Voltage to GND −0.3 V to VCC + 0.3 V
Operating Temperature Range −40°C to +105°C
Storage Temperature Range −65°C to +150°C
Stresses above those listed under the Absolute Maximum
Ratings may cause permanent damage to the device. This is a
stress rating only; functional operation of the device at these or
any other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
Drops onto hard surfaces can cause shocks of greater than
g and exceed the absolute maximum rating of the device.
2000
Care should be exercised in handling the device to avoid damage.
ESD CAUTION
Rev. 0 | Page 6 of 12
Page 7
ADIS16060
2
www.BDTIC.com/ADI
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
MSEL2
VIEW
FILT
TOP
CC
V
GND
GND
GND
GND
07103-004
7.373 BSC
9101112
AIN2
CC
V
AIN1
2.5050 BSC
8×
5.010 BSC
2×
4×
1.000 BSC
16×
Figure 5. Second-Level Assembly Pad Layout
MSEL1
16
151413
DIN
SCLK
DOUT
4321
NC
NOTES
1. NC = NO CONNECT
. THIS IS NOT AN ACTUAL “T OP VIEW ,” AS THE PI NS ARE NOT VI SIBLE F ROM THE
TOP. THIS IS A LAYOUT VIEW, WHICH REP RESENTS THE PIN CONFI GURATIO N, IF
THE PACKAGE IS LOOKED T HROUGH FROM THE TOP . THIS CO NFIGURATI ON IS
PROVIDED FOR PCB LAYOUT PURPOSES.
PIN 1
INDICATO R
ADIS16060
“LOOK THROUGH”
(Not to Scale)
5678
RATE
Figure 4. Pin Configuration
Table 4. Pin Function Descriptions
Pin No. Mnemonic Type1Description
1 DIN I SPI Data Input.
2 SCLK I SPI Serial Clock.
3 DOUT O SPI Data Output.
4 NC No Connect.
5 RATE O Buffered Analog Output. Represents the angular rate signal.
6 FILT I External Capacitor Connection to Control Bandwidth.
7 V
CC
S Power Supply.
8 AIN1 I External Analog Input Channel 1.
9 AIN2 I External Analog Input Channel 2.
10 GND S Ground.
11 GND S Ground.
12 GND S Ground.
13 GND S Ground.
14 V
15
16
1
I = input; O = output; S = power supply.
CC
MSEL2
MSEL1
S Power Supply.
I SPI, Mode Select 2. Used for data input functions.
I SPI, Mode Select 1. Used for data output functions.
3.6865 BSC
8×
0.5000 BSC
16×
0.6700 BSC
12×
07103-005
Rev. 0 | Page 7 of 12
Page 8
ADIS16060
–
www.BDTIC.com/ADI
TYPICAL PERFORMANCE CHARACTERISTICS
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
PERCENT OF POPULATION (%)
0.02
0
–44
–40
–36
–32
–28
–24
–20
–16
–8
–4
–12
BIAS (°/sec)
048
Figure 6. Initial Bias Error Distribution, 25°C, V
121620242832364044
= 5 V
CC
07103-020
6800
6600
6400
6200
6000
5800
5600
5400
5200
5000
DIGITAL RATE OUTPUT RESPONSE (LSB)
4800
–60120100806040200–20–40
TEMPERATURE ( °C)
Figure 9. Positive Self-Test Response vs. Temperature, V
CC
= 5 V
07103-009
0.30
0.25
0.20
0.15
0.10
PERCENT OF POPULATION (%)
0.05
0
–0.60
–0.55
–0.50
–0.45
–0.40
–0.35
–0.30
–0.25
–0.20
BIAS DRIFT OVER TEMPERATURE (°/sec/°C)
–0.15
Figure 7. Bias Drift Over −40°C to +85°C, V
0.04
0.03
0.02
0.01
0
–0.01
SENSITIV ITY ERROR (%)
–0.02
–0.03
4800
–5000
–5200
–5400
–5600
–5800
–6000
–6200
–6400
–6600
DIGITAL RATE OUTPUT RESPONSE (LSB)
0
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
0.55
–0.10
–0.05
= 5 V
CC
µ + 1σ
µ
µ – 1σ
0.60
07103-021
–6800
–60120100806040200–20–40
TEMPERATURE ( °C)
Figure 10. Negative Self-Test Output Response vs. Temperature, V
0.1
0.01
ROOT ALL EN VARIANCE (°/ sec)
CC
= 5 V
07103-010
–0.04
–60120100806040200–20–40
Figure 8. Sensitivity Drift vs. Temperature, V
TEMPERATURE (° C)
CC
= 5 V
07103-008
Rev. 0 | Page 8 of 12
0.001
1100010010
Figure 11. Allen Variance, 25°C, V
Tau (°C)
= 5 V
CC
07103-011
Page 9
ADIS16060
A
V
www.BDTIC.com/ADI
THEORY OF OPERATION
The ADIS16060 operates on the principle of a resonator
gyroscope. Two polysilicon sensing structures each contain a
dither frame that is electrostatically driven to resonance. This
generates the necessary velocity element to produce a Coriolis
force while rotating. At two of the outer extremes of each frame,
orthogonal to the dither motion, are movable fingers that are
placed between fixed pickoff fingers to form a capacitive pickoff
structure that senses Coriolis motion.
The resulting signal is fed to a series of gain and demodulation
s
tages that produce the electrical rate signal output. The rate
signal is then converted to a digital representation of the output
on the SPI pins. The dual-sensor design provides linear acceleration
(vibration, shock) rejection. Fabricating the sensor with the signalconditioning electronics preserves signal integrity in noisy
environments.
The electrostatic resonator requires 14 V to 16 V for operation.
ecause only 5 V is typically available in most applications, a charge
B
pump is included on chip. After the demodulation stage, a singlepole, low-pass filter on the chip is used to limit high frequency
artifacts before final amplification. The frequency response is
dominated by the second low-pass filter, which is set by adding
capacitance across RATE and FILT.
ANALOG-TO-DIGITAL CONVERTER INPUT
Figure 12 shows an equivalent circuit of the input structure of
the ADIS16060 auxiliary ADC.
The two diodes, D1 and D2, provide ESD protection for the analog
in
puts, AINx (AIN1 and AIN2). Care must be taken to ensure
that the analog input signal does not exceed the supply rails by
more than 0.3 V, because exceeding this level causes these diodes to
become forward-biased and to start conducting current. However,
these diodes can handle a forward-biased current of 130 mA
maximum. For instance, these conditions may eventually occur
when the input signals exceed either V
DD
or GND.
CC
During the acquisition phase, the impedance model for AINx is a
parallel combination of the capacitor C
by the series connection of R
capacitance. R
is typically 600 Ω and is a lumped component
IN
and CIN. C
IN
and the network formed
PIN
is primarily the pin
PIN
made up of some serial resistors and the on resistance of the
switches. C
is typically 30 pF and mainly functions as the
IN
ADC sampling capacitor.
During the conversion phase, when the switches are open, the
in
put impedance is limited to C
. RIN and CIN make a 1-pole,
PIN
low-pass filter that reduces undesirable aliasing effects and
limits the noise.
When the source impedance of the driving circuit is low, the
C input can be driven directly. Large source impedances
AD
significantly affect the ac performance, especially THD. The dc
performances are less sensitive to the input impedance.
RATE SENSITIVE AXIS
RATE
AXIS
LONGIT UDINAL
AXIS
1
LATERAL
AXIS
Figure 13. Rate Signal Increases wi
POSITIVE
MEASUREMENT
DIRECTIO N
8
5
4
th Clockwise Rotation
07103-019
INx
GND
Figure 12. Equivalent Analog Input Circuit
D1
C
PIN
D2
R
C
IN
IN
07103-018
Rev. 0 | Page 9 of 12
Page 10
ADIS16060
www.BDTIC.com/ADI
BASIC OPERATION
The ADIS16060 is designed for simple integration into industrial 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
(
input (DIN), and data output (DOUT). The
when reading data out of the sensor (DOUT), and the
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. Tabl e 2 and Figure 3 provide
t
After the
into the internal control register, which represents DB0 to DB7
in Tab l e 5 .
), Mode Select 2 (
he necessary timing details for the input configuration sequence.
MSEL2
goes high, the last eight DIN bits are loaded
MSEL2
), serial clock (SCLK), data
MSEL1
line is used
MSEL2
Output Data Access
Use Tabl e 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
MSB first on the DOUT line at the 6
shown in Figure 2. The entire conversion process takes 20 SCLK
cy
Power supply noise and transient behaviors can influence the
accuracy and stability of any sensor-based measurement system.
The ADIS16060 provides 0.2 F of decoupling capacitance on
the V
pin. Depending on the level of noise present in the
CC
power supply of the system, the ADIS16060 may not require
any additional decoupling capacitance for this supply.
SETTING BANDWIDTH
External Capacitor C
chip R
resistor to create a low-pass filter to limit the
OUT
bandwidth of the ADIS16060 rate response. The –3 dB
frequency set by R
=
f
OUT
()
and can be well controlled because R
during manufacturing to be 200 kΩ ± 5%. Setting the range
with an external resistor impacts R
=
R
OUT
()
In general, an additional hardware or software filter is added to
a
ttenuate high frequency noise arising from demodulation spikes
at the gyro’s 14 kHz resonant frequency. The noise spikes at 14 kHz
can be clearly seen in the power spectral density curve shown in
Figure 14.
INCREASING MEASUREMENT RANGE
Scaling the measurement range requires the addition of a single
resistor, connected across the RATE and FILT pins. The following
equation provides the proper relationship for selecting the
appropriate resistor:
=
R
EXT
where ∆ is the increase in range.
is used in combination with the on-
OUT
and C
OUT
1
π2
×
k200
+
k200
is
OUT
CR
×××
OUTOUT
has been trimmed
OUT
as follows:
OUT
R
EXT
R
EXT
k200
1
−Δ
1
0.1
0.01
0.001
NOISE DENSI TY (°/ sec/ Hz)
0.0001
10100100k1k10k
Figure 14. Noise Spectral Density with 2-Pole, Low-Pass Filter (40 Hz and 250 Hz)
FREQUENCY (Hz)
07103-118
DYNAMIC DIGITAL SENSITIVITY SCALING
This device supports in-system, dynamic, digital sensitivity scaling.
TEMPERATURE MEASUREMENTS
When using the temperature sensor, an acquisition time of
greater than 40 µs helps to ensure proper setting and measurement
accuracy. See Tabl e 2 and Figure 2 for details on the definition
o
f acquisition time.
SELF-TEST FUNCTION
Exercising the self-test function is simple, as shown in this
example.
1. C
onfigure using DIN = 00100010 (positive self-test,
rate selected).
ad output.
2. Re
onfigure using DIN = 00100000 (positive self-test off,
3. C
rate selected)
4. Re
ad output.
5. C
alculate the difference between Step 2 and Step 4, and
compare this with the specified self-test output changes in
the Specifications section.
Exercising the negative self-test requires changing the sequence
in S
tep 1 to DIN = 00100001.
Rev. 0 | Page 11 of 12
Page 12
ADIS16060
www.BDTIC.com/ADI
OUTLINE DIMENSIONS
8.35
MAX
TOP VIEW
7.00
TYP
SIDE VIEW
5.010
BSC
(4×)
58
BOTTOM VIEW
8.20
TYP
5.20
MAX
7.373
BSC
(2×)
0.200
MIN
(ALL SIDES)
2.505
BSC
(8×)
1316
12
9
Figure 15. 16-Terminal Stacked Land Grid Array [LGA]
(CC-16-1)
Dim
ensions shown in millimeters
PIN 1
INDICATOR
0.873 BSC
(16×)
1
0.797 BSC
(12×)
4
0.373 BSC
(16×)
022107-B
ORDERING GUIDE
Model Temperature Range Package Description Package Option
ADIS16060BCCZ
ADIS16060/PCBZ
1
Z = RoHS Compliant Part.
1
1
−40°C to +105°C 16-Terminal Stacked Land Grid Array (LGA) CC-16-1
Evaluation Board