sz007a spec en v0 - future electronics

SZ007A Preliminary Specification

SENODIA Technologies（SH） Co., Ltd. of 17 Rev 0.2 www.senodia.com

Features and Benefits

VDD range: 4.75V～5.25V

Power consumption: 16mA

Size: 10.668mmx10.668mmx2.9mm

Operating temp range:‐ 40℃ to 85℃

High resolution and dynamic range

Low zero rate output drift

Adjustable full scale range

±75º/s ±150º/s ±300 º/s

On chip EEPROM trimming

On‐chip 11 bits ADC

Analog and digital output(SPI interface)

Applications

GPS/DR Navigation

Vehicle stability

Roll over

Intelligent traffic system

General Description

The SZ007A is an integrated Z‐Axis angular

rate sensor (Gyroscope). A single CLCC

package contains a high performance silicon

micro machined sensor with signal

conditioning circuitry.

It provides excellent temperature stability and

high resolution over the operating

temperature range (‐40℃ ~ 85℃)

It provides on‐chip temperature sensor, which outputs a voltage proportional to the temperature.

It has ±75 º/s , ±150 º/s and ±300 º/s full scale

selectable, and the signals of different full

scale can be accessed by using different I2C

commands conveniently. SZ007A is capable of

detecting rates with ‐3dB bandwidth up to

75Hz.

The SZ007A delivers output signal

proportional to angular rate perpendicular to

the assembly surface. SZ007A includes

low‐pass filters and EEPROM for on‐chip

factory calibration for the sensor. Factory

trimmed scale factors eliminates the need for

external active components and end‐user

calibration.

The SZ007A is provided in Ceramic package

(CLCC32) and the size is 10.668 mm x 10.668

mm x 2.9mm

Order Information

Part Number Package Code Option Code Full Scale

SZ007AC‐N C(CLCC32) N ±75 º /s

SZ007AC‐E C(CLCC32) E ±150 º /s

SZ007AC‐R C(CLCC32) R ±300 º /s



1. Functional Diagram

Fig. 1. Function block diagram



2. SZ007A Gyroscope Sensor Specifications

DC Operating Parameters T=‐40℃ to 85℃, Vdd=4.75V to5.25V (unless otherwise specified)

All parameters specified are @ Vdd=5.0V and T=25℃

Parameter Test Condition Min. Typ. Max. Unit

Full Scale Range

N ±75 º /s

E ±150 º /s

R ±300 º /s

Non‐Linearity Best fit line ±0.5 % of FS

Sensitivity

/Scale Factor

N 26.67 mV/ º /s

12.8 LSB/ º /s

E 13.33 mV/ º /s

6.4 LSB/ º /s

R 6.67 mV/ º /s

3.2 LSB/ º /s

Scale Factor Drift ‐40℃~85℃ ±5 %S0

Zero Rate Output(ZRO) 2.5 V

1008 LSB

ADC Time 90 115 µS

Zero Rate

Temperature Drift ‐40℃~85℃ ±5 %FSOUT

Zero Rate time

stability based on

(Allan Deviation)

17 º /h

Zero output Power

Variation drift

N VDD:4.75～5.25V 180 270 mV/V

87 130 LSB/V

E VDD:4.75～5.25V 100 170 mV/V

48 82 LSB/V

R VDD:4.75～5.25V 50 90 mV/V

42 44 LSB/V

Bandwidth(‐3dB) External selectable 6 70 Hz

Output Noise Density Within 15Hz bandwidth 0.03 º /s/sqrtHz

Cross‐sensitivity ±1 2 % FSOUT

Resonant Frequency 8.2 KHz

V ref 2.45 2.5 2.55 V



TC of VREF ‐40℃~85℃ 90 ppm/ K

Vibration sensitivity 8.4 gPTP,100Hz, …,7000Hz 0.1 º /s/g

Temperature Sensor 25℃ 2.3 2.5 2.7 V

TC of Temperature

Sensor ‐40℃~85℃ 10 mV/ K

ADC Resolution 11 bit

Power‐on Time CFLT=10nF, C3=100nF 150 250 ms

3. Electrical Characteristics

Electrical characteristics @ Vdd=5.0V, T=25℃ unless otherwise noted

Symbol Parameter Condition Min. Typ. Max. Unit

Vdd Supply voltage 4.75 5 5.25 V

Idd Supply current Vdd=5.0V 16 mA

Symbol Parameter Pin Min. Typ. Max. Unit

low level input voltage VIL SENB,MOSI 0 30%VDD V

high level input voltage VIH SENB,MOSI 70%VDD VDD V

low level output voltage VOL MISO, ERROR,

IO<8mA

0 0.4 V

high level output voltage VOH MISO, ERROR,

IO<8mA

80%VDD VDD V

4. Absolute Maximum Ratings

Stress above those listed as “Absolute Maximum Ratings” may cause permanent damage to the device.

Exposure to absolute‐maximum‐rated conditions for extended periods may affect device reliability.

Parameter Min Max Units Comments

SupplyVoltage.VDD ‐0.5 7 V No latch‐up or damage.

Rise time (10 to 90%):

tr ≥0.5µs.

Supply Voltage, VDD 4.75 5.25 V Operating within specifications

Output pins (OUTAR, OUTTEMP, all digital

IO’s)，Current limit, shorted to VDD or VSS

pin

25 mA VDD = 0 to 7V

guaranteed by characterization



Operating Temperature Range, TAMBIENT ‐40 80 ℃

Operating Temperature Range, TJUNCTION ‐40 110 ℃ Output not shorted

Storage Temperature Range ‐55 125 ℃

Package Thermal Resistance 100 ℃/W

Latch‐up withstand ‐150 150 mA CDF ‐ AEC ‐ Q100‐004;

VDD= 5.75V

Acceleration shock survival ±

1500

g Shock 0.5ms, 3 axis

5. Pin Description

Fig. 2. PIN Description

(Top View)

Table PIN Description

Pin No Pin Name Pin Function

1,32 TOPCAP Please connect to GND

3 VSS Digital GND

4 VDD Digital Power

6 SCLK SPI Serial clock

7 SENB SPI Serial Enable

8 MISO SPI Data IO port, input as master, output as slave

9 MOSI SPI Data IO port ,output as master ,input as slave

10,28,29 Res_G Reserve pin ,please connect GND

11 ERROR Continue self test Error report

12 SELFTEST Self test request

21 HVIN Charge pump filter(Need to connect a 10nF with 25V

SZ007A



capacitance)

22 TEMP Temperature Sensor analog output

23 FLT Filter capacitance pin

24 ZOUT Analog Sensor output

25 VREF Voltage of sensor reference

26 VSSA Analog GND

27 VDDA Analog Power Supply

30 RES_F Reserve pin , please Open

2,5,13,14,15,16,

17,18,19,20,31，

32

NC Please connect to GND

Table 6.1 Pins Description

6. Design Notes

6.1 Senor Analog output voltage

Sensor signal is output by the Zout pin , and the relationship between voltage can be calculate:

Zout = Bias+ Sensitivity × AngularRate

Bias is the Zero Rate output

6.2 Communication with the SZ007A through the SPI

The SZ007A has a serial communication interface compatible with four wires Serial Peripheral

Interface (SPI).

serial clock (SCLK);

master data output, slave data input (MOSI);

master data input, slave data output (MISO);

slave select (SENB).

The SZ007A can work only as a slave device.

Figure 6.1 Data transfer sequence( Full Answer Reading)

SENB



Figure 6.2 data transfer sequence (High Byte Answer)

Figure 6.3 SPI Data Transfer Timing

Parameter Threshold Unit Test Condition

t1 ≥30 ns SENB active to SCLK Raising Edge Setup time

t2 ≥80 ns SCLK High Duration

t3 ≥80 ns SCLK Low Duration

t4 ≥0 ns SENB Low Duration

t5 ≥50 ns SCLK High Duration

t6 ≥80 ns Data In Setup time

t7 ≥50 ns Data In Hold

t8 ≤50 ns Output active

t9 ≥0 ns Output Setup time

t10 ≤40 ns Output Disable time

6.3 ADC Apply Note

SZ007A integrate a 11bits AD Converter , any Temperature and Gyro Rate can be obtain by the

formula from ADC code

SENB

SENB



VZOUT (mV) =ADCcode*25/12+400;

VTEMP(mV)=ADC code*25/16+300;

Description of the bits mentioned in ADC section：

ADEN

ADC enable bit：

ADEN=0：ADC at a sleep mode and refused to be read；

ADEN=1：ADC work normally

Note: This bit should be set by Command ADCC, and cleared after power up

BUSY This bit will be set after chip reset and will be cleared after initialization inside chip

If busy = 1 ,then chip send Refuse signal only

CHAN

CHAN bit is used to select input Source of ADC

CHAN = 0: input Angular rate channel

CHAN = 1: Temperature will be converted

Note: This bit Can be Set by Command ADCC and cleared after power up

EOC End of AD-conversion bit. EOC bit indicates an ADC state.

EOC=0 : ADC in progress and can not be restarted.

EOC=1 : AD-conversion has been completed and can be restarted.

As a result, any attempt of the ADC starting will be rejected if EOC has a “0” state.

OPC Unknown Operation Code. This bit is set when a received operation code was not

recognized.

X These bits are reserved or have an undefined state.

6.3.1 ADC Instructions and Answers

There are three SPI commands that are used to control embedded ADC of the SZ007A: STATR,

ADCC and ADCR.

The Refusal Answer

Every instruction sent to the SZ007A has an answer. If the SZ007A is not able to accept the

instruction a refusal answer will be transmitted out. This answer has a unique format which is

shown in the Table 7. The refusal answer is the only one that has a set MSB. The other bits help

to understand a possible reason for the instruction rejection.

Refuse Answer

Bit15 Bit1 Bit13 Bit12 Bit11 Bit10 Bit9 Bit8 Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0

1 OPC EOC X X BUSY X X X X X X X X X X

Command of the Status Reading（STATR）

Instruction

Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0



1 0 0 0 1 0 0 0

Answer


0 X EOC X X X X X X X X X CHAN ADEN X X

Command of the ADC Control (ADCC)

Instruction


1 0 0 1 CHAN ADEN 0 0

Answer


0 X EOC X X X X X X X X X CHAN ADEN X X

Command of the ADC Reading (ADCR)

Instruction


1 0 0 0 0 0 0 0

Answer


0 X EOC X AD10 AD9 AD8 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 0

AD10:AD0 as the ADC code ，Valid only EOC is set

6.3.2 Reading the Digital Angular Rate or Temperature (suggested procedure)

There is a recommended sequence below to obtain digital data from the ADC.

Notes:

‐ The bit with leftmost position should be shifted first.

‐ Below “x” means any value: “0” or “1”.

Step 1 (put ADC to the active mode if it wasn’t)

Use SPI to send ADCC instruction (MOSI):

And check 15th bit of the answer (MISO):

If 15th bit is zero, the instruction is accepted.

Before to go to the Step 2 provide a delay > 115 μs or wait till the EOC bit is set.

Step 2 (conversion start)

Use SPI to send ADCC instruction(MOSI):



CHAN bit specifies the input source of the ADC.

CHAN=0: The angular rate signal.

CHAN=1: The temperature sensor signal.



Go to the Step 3.

• Step 3 (polling and result obtaining)

Use SPI to send ADCR instruction and check 15th and 13th bits of the answer:


If 13th bit (EOC) is zero, the conversion is still in progress and the result of the

conversion (bits AD10…AD0) is not valid. As soon as the EOC bit is set the conversion is

completed and the result is valid.

Instead of the polling of the EOC bit one can use a simple delay that should be bigger

than a maximal conversion time (>115 μs, see table 4).

Go to the Step 2 to do the next conversion or to the Step 4 to put ADC to the sleep mode.

Step 4 (put ADC to the sleep mode if it’s necessary)

Use SPI to send ADCC instruction (MOSI):



7. Applications Examples

Figure 7.1 SZ007A with simultaneous analog and digital output

The SZ007A can simultaneously output analog and digital signals. The analog output signal can be

fed to a microcontroller (μC) that contains an analog‐to‐digital converter. A multiplexer can be

used to select between the temperature and the angular rate signals. The SZ007A generates an

internal reference voltage used for supplying the ADC, thereby maintaining accuracy regardless of

the supply voltage of the μC. Whilst supplying the analog output signal, the SZ007A can

simultaneously send a digital output signal to the μC through the SPI.

SZ007A



1. The bandwidth of the SZ007A can be selected by connecting an appropriate capacitor inthe

FLT pin. CFLT implements a first order low pass filter cascaded with an internal 4‐th order SC

filter. The –3dB bandwidth set by CFLT is: fOUT =0.16 / (ROUT*CFLT), with ROUT = 200k_

(typ). It is recommended to use CFLT even if the cut‐off frequency is not specified to reduce

switching spikes at the output.

2. It is recommended to use X5R or X7R type capacitors. Min. voltage for C3 should be 25V or

more, and 10V or more for the other capacitors. Recommended values of decoupling

capacitors C1 and C2 are 1.0μF and 0.1μF for C3. These capacitors should be placed as close

as possible to their respective pins.

3. HVIN is a high impedance node. Be sure that an equivalent leakage resistance at this node

Figure 7-2. SZ007A with analog output only

If only an analog output signal is required, the SZ007A doesn’t need to communicate through the

SPI pins. All other pins continue to be used as described above.

Figure 7-3. SZ007A with digital output only

If only a digital output signal is required the SZ007A uses the SPI to send the temperature and

SZ007A

SZ007A



the angular rate in a digital format. The operation mode only through the SPI allows a reduction

of cost and complexity in the interfacing to system microcontroller or microprocessor. All the pins

in the above schematics continue to be used as described above. In order to adapt the SZ007A

for a 3.3V Microcontroller one can use the below schematic:

Figure 7-4. Possible interfacing with 3.3V μC

SZ007A



8.0 Package information

8.1 Package dimensions

Figure 8‐1. SZ007A Package dimensions unit： mm (inch)



Figure 8‐2. SZ007A Bottom Dimensions Figure 8‐3. Land Pattern（TOP View)

8.2 Marking Label



9. Solder Reflow Curve

Solder Reflow curve follows IPC/JEDEC J‐STD‐020C Pb‐free standards.



Figure 9.1 Solder Reflow curve

10. Environment Compliant

SZ007A pass SGS certification，compliant with RoHS standards.



11. Revision History

Date Revision Changes

2012‐2‐24 0 Preliminary issue.

2012‐6‐8 0.1 Revised Version for digital command information

2012‐6‐28 0.2 Add order information and Laser label

12. Disclaimer

Information furnished by SENODIA is believed to be accurate and reliable. However, SENODIA

reserve the right to make changes, modifications or corrections to this document and related

products at any time, without notice.

No license and intellectual property right is granted under this document. We reserve all rights of

disposal such copying or passing on to third parties. No responsibility is assumed by SENODIA for

any infringements of patents or other rights of third parties which may result from its use.

sz007a spec en v0 - future electronics

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