MMA1201P NXP | Alldatasheet

Document overview

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Technical content

Features

  • Integral Signal Conditioning
  • Linear Output
  • Ratiometric Performance
  • 4th Order Bessel Filter Preserves Pulse Shape Integrity
  • Calibrated Self–test
  • Low Voltage Detect, Clock Monitor, and EPROM Parity Check Status
  • Transducer Hermetically Sealed at Wafer Level for Superior Reliability
  • Robust Design, High Shocks Survivability
  • Two Packaging Options Available: 1) Plastic DIP for Z Axis Sensing (MMA1201P) 2) Wingback for X Axis Sensing (MMA2200W) Typical Applications
  • Vibration Monitoring and Recording
  • Appliance Control
  • Mechanical Bearing Monitoring
  • Computer Hard Drive Protection
  • Computer Mouse and Joysticks
  • Virtual Reality Input Devices
  • Sports Diagnostic Devices and Systems SIMPLIFIED ACCELEROMETER FUNCTIONAL BLOCK DIAGRAM G–CELL SENSOR INTEGRATOR GAIN FILTER TEMP COMP SELF–TEST CONTROL LOGIC & EPROM TRIM CIRCUITS CLOCK GEN.OSCILLATOR VDD VOUT VSS VST

Figure 1. Simplified Accelerometer Functional Block Diagram Freescale Semiconductor, Inc.

ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005 ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005 /C0077/C0077/C0065/C0049/C0050/C0048/C0049/C0080 /C0077/C0077/C0065/C0050/C0050/C0048/C0048/C0087

2 Motorola Sensor Device Data

MAXIMUM RATINGS (Maximum ratings are the limits to which the device can be exposed without causing permanent damage.) Rating Symbol Value Unit Powered Acceleration (all axes) G pd 500 g Unpowered Acceleration (all axes) G upd 2000 g Supply Voltage VDD –0.3 to +7.0 V Drop Test(1) D drop 1.2 m Storage Temperature Range Tstg –40 to +105 °C NOTES: 1. Dropped onto concrete surface from any axis. ELECTRO STATIC DISCHARGE (ESD) WARNING: This device is sensitive to electrostatic discharge. Although the Motorola accelerometers contain internal 2kV ESD protection circuitry, extra precaution must be taken by the user to protect the chip from ESD. A charge of over 2000 volts can accumulate on the human body or associated test equipment. A charge of this magnitude can alter the per- formance or cause failure of the chip. When handling the accelerometer, proper ESD precautions should be followed to avoid exposing the device to discharges which may be detrimental to its performance. Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...

ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005 ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005 /C0077/C0077/C0065/C0049/C0050/C0048/C0049/C0080 /C0077/C0077/C0065/C0050/C0050/C0048/C0048/C0087 3Motorola Sensor Device Data OPERATING CHARACTERISTICS (Unless otherwise noted: 0°C /C0118 TA /C0118 +85°C, 4.75 /C0118 VDD /C0118 5.25, Acceleration = 0g, Loaded output(1)) Characteristic Symbol Min Typ Max Unit Operating Range(2) Supply Voltage(3) Supply Current Operating Temperature Range Acceleration Range VDD IDD TA gFS 4.75 4.0 /C004240 5.00 5.0 5.25 6.0 +85 V mA g Output Signal Zero g (VDD = 5.0 V)(4) Zero g Sensitivity (TA = 25°C, VDD = 5.0 V)(5) Sensitivity (VDD = 5.0 V) Bandwidth Response Nonlinearity VOFF VOFF,V S SV f–3dB NL OUT 2.2

0.44 VDD

47.5 9.3 360 /C00421.0 2.5

0.50 VDD

2.8

0.56 VDD

52.5 10.7 440 +1.0 V V mV/g mV/g/V Hz % FSO Noise RMS (.01–1 kHz) Power Spectral Density Clock Noise (without RC load on output)(6) nRMS nPSD nCLK 110 2.0 3.5 mVrms µV/(Hz1/2) mVpk Self–Test Output Response Input Low Input High Input Loading(7) Response Time(8) gST VIL VIH IIN tST VSS 0.7 x VDD /C004230 /C0042110 2.0 0.3 x VDD VDD /C0042300 g V V µA ms Status(12)(13) Output Low (Iload = 100 µA) Output High (Iload = 100 µA) VOL VOH VDD /C0042.8 0.4 V V Minimum Supply Voltage (LVD Trip) VLVD 2.7 3.25 4.0 V Clock Monitor Fail Detection Frequency fmin 50 — 260 kHz Output Stage Performance Electrical Saturation Recovery Time(9) Full Scale Output Range (IOUT = 200 µA) Capacitive Load Drive(10) Output Impedance tDELAY VFSO C L ZO 0.3 0.2 300 VDD /C00420.3 100 ms V pF Ω Mechanical Characteristics Transverse Sensitivity(11) Package Resonance VZX,YX fPKG 5.0 % FSO kHz NOTES: 1. For a loaded output the measurements are observed after an RC filter consisting of a 1 kΩ resistor and a 0.01 µF capacitor to ground. 2. These limits define the range of operation for which the part will meet specification. 3. Within the supply range of 4.75 and 5.25 volts, the device operates as a fully calibrated linear accelerometer. Beyond these supply limits the device may operate as a linear device but is not guaranteed to be in calibration. 4. The device can measure both + and /C0042 acceleration. With no input acceleration the output is at midsupply. For positive acceleration the output will increase above VDD /2 and for negative acceleration the output will decrease below VDD /2. 5. The device is calibrated at 20g. 6. At clock frequency /C0094 70 kHz. 7. The digital input pin has an internal pull–down current source to prevent inadvertent self test initiation due to external board level leakages. 8. Time for the output to reach 90% of its final value after a self–test is initiated. 9. Time for amplifiers to recover after an acceleration signal causing them to saturate. 10. Preserves phase margin (60°) to guarantee output amplifier stability. 11. A measure of the device’s ability to reject an acceleration applied 90° from the true axis of sensitivity. 12. The Status pin output is not valid following power–up until at least one rising edge has been applied to the self–test pin. The Status pin is high whenever the self–test input is high. 13. The Status pin output latches high if a Low Voltage Detection or Clock Frequency failure occurs, or the EPROM parity changes to odd. The Status pin can be reset by a rising edge on self–test, unless a fault condition continues to exist. Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...

4 Motorola Sensor Device Data

integrated–circuit accelerometer. using a bulk micromachined “cap’’ wafer. jecting the system to an acceleration (Figure 2). metric and proportional to acceleration. Figure 2. Transducer Figure 3. Equivalent and capacitors) to set the cut–off frequency. and sensitivity will scale linearly with applied supply voltage. in the analog to digital conversion process.

  • Supply voltage falls below the Low Voltage Detect (LVD) voltage threshold
  • Clock oscillator falls below the clock monitor minimum frequency
  • Parity of the EPROM bits becomes odd in number. The fault latch can be reset by a rising edge on the self– test input pin, unless one (or more) of the fault conditions continues to exist. BASIC CONNECTIONS Pinout Description for the Wingback Package 1 2 3 4 5 6 Pin No. Pin Name Description 1 — Leave unconnected or connect to signal ground

2 ST Logic input pin to initiate self test

3 VOUT Output voltage

4 Status Logic output pin to indicate fault

5 VSS Signal ground

6 VDD Supply voltage (5 V)

Freescale Semiconductor, Inc.

Figure 4. Wingback Accelerometer with

4 ST Logic input pin to initiate self

5 VOUT Output voltage

6 Status Logic output pin to indicate

7 VSS Signal ground

8 VDD Supply voltage (5 V)

Figure 5. DIP Accelerometer with Recommended Figure 6. Recommend PCB Layout for Interfacing

  • Use a 0.1 µF capacitor on VDD to decouple the power source.
  • Physical coupling distance of the accelerometer to the microcontroller should be minimal.
  • Place a ground plane beneath the accelerometer to reduce noise, the ground plane should be attached to all of the open ended terminals shown in Figure 6.
  • Use an RC filter of 1 kΩ and 0.01 µF on the output of the accelerometer to minimize clock noise (from the switched capacitor filter circuit).
  • PCB layout of power and ground should not couple power supply noise.
  • Accelerometer and microcontroller should not be a high current path.
  • A/D sampling rate and any external power supply switching frequency should be selected such that they do not inter- fere with the internal accelerometer sampling frequency. This will prevent aliasing errors. Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...

ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005 ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005 /C0077/C0077/C0065/C0049/C0050/C0048/C0049/C0080 /C0077/C0077/C0065/C0050/C0050/C0048/C0048/C0087

6 Motorola Sensor Device Data

  • When positioned as shown, the Earth’s gravity will result in a positive 1g output Positive Acceleration Sensing Direction WINGBACK PACKAGE .090 ∅ .033 Measurement in inches Drilling Patterns WB PACKAGE DRILLING PATTERN .031 6X∅ .049 .047 2X .590 .680

ORDERING INFORMATION

Device Temperature Range Case No. Package MMA1201P –40 to +85°C Case 648C–04 Plastic DIP MMA2200W –40 to +85°C Case 456–06 Plastic Wingback Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...

ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005 ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005 /C0077/C0077/C0065/C0049/C0050/C0048/C0049/C0080 /C0077/C0077/C0065/C0050/C0050/C0048/C0048/C0087 7Motorola Sensor Device Data PACKAGE DIMENSIONS CASE 648C–04 ISSUE D DIP PACKAGE DIM MIN MAX MIN MAX MILLIMETERSINCHES A 0.744 0.783 18.90 19.90 B 0.240 0.260 6.10 6.60 C 0.145 0.185 3.69 4.69 D 0.015 0.021 0.38 0.53 E 0.050 BSC 1.27 BSC F 0.040 0.70 1.02 1.78 G 0.100 BSC 2.54 BSC J 0.008 0.015 0.20 0.38 K 0.115 0.135 2.92 3.43 L 0.300 BSC 7.62 BSC M 0 10 0 10 N 0.015 0.040 0.39 1.01 /C0095/C0095/C0095/C0095 NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 16 9 D G E N K C 16X AM0.005 (0.13) T SEATING PLANE BM0.005 (0.13) T J16X M L A A B F T B CASE 456–06 ISSUE H WB PACKAGE DIM MIN MAX MIN MAX MILLIMETERSINCHES A 15.700.6380.618 16.21 B 6.100.2600.240 6.60 C 3.230.1330.127 3.38 D 0.380.0210.015 0.53 E 8.330.3680.328 9.35 G 0.100 BSC 2.54 BSC H 0.050 BSC 1.27 BSC J 0.009 0.012 0.23 0.30 K 0.125 0.140 3.18 3.56 L 0.063 0.070 1.60 1.78 M 0.015 0.025 0.38 0.64 N 0.036 0.044 0.91 1.12 P 0.110 0.120 2.79 3.05 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. PLANE –X– AND PLANE –Y– SHOULD BE ALIGNED WITHIN /C00340.0015”. –A– MAM0.13 (0.005) B MT G H D 6 PL C –B– J N E –T– M F F 2.840.112 3.050.120 S S 0.025 0.035 0.64 0.89 U U P U 0.088 0.108 2.24 2.74 K 8 PL –Y– –Y– L 8 PL –X– Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...

ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005 ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005 /C0077/C0077/C0065/C0049/C0050/C0048/C0049/C0080 /C0077/C0077/C0065/C0050/C0050/C0048/C0048/C0087

8 Motorola Sensor Device Data

Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. Mfax is a trademark of Motorola, Inc. How to reach us: USA/EUROPE/Locations Not Listed: Motorola Literature Distribution; P.O. Box 5405, Denver, Colorado 80217. 1–303–675–2140 or 1–800–441–2447 JAPAN : Motorola Japan Ltd.; SPS, Technical Information Center, 3–20–1, Minami–Azabu. Minato–ku, Tokyo 106–8573 Japan. 81–3–3440–3569 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Centre, 2 Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong. 852–26668334 Customer Focus Center: 1–800–521–6274 Mfax : RMFAX0@email.sps.mot.com – TOUCHTONE 1 –602–244–6609 Motorola Fax Back System – US & C anada ONLY 1–800–774–1848 – http://sps.motorola.com/mfax/ HOME PAGE : http://motorola.com/sps/ MMA1201P/D◊ Freescale Sem iconductor, I Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com nc...