- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄375270 > ADXL322 (Analog Devices, Inc.) Small and Thin +-2 g Accelerometer PDF資料下載
參數(shù)資料
| 型號(hào)： | ADXL322 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Small and Thin +-2 g Accelerometer |
| 中文描述： | 小而薄-2克加速度 |
| 文件頁(yè)數(shù)： | 11/16頁(yè) |
| 文件大?。?/td> | 286K |
| 代理商： | ADXL322 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)當(dāng)前第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)
ADXL322
THEORY OF OPERATION
The ADXL322 is a complete acceleration measurement system
on a single monolithic IC. The ADXL322 has a measurement
range of ±2
g
. It contains a polysilicon surface micromachined
sensor and signal conditioning circuitry to implement an open-
loop acceleration measurement architecture. The output signals
are analog voltages that are proportional to acceleration. The
accelerometer measures static acceleration forces, such as
gravity, which allows it to be used as a tilt sensor.
Rev. 0 | Page 11 of 16
The sensor is a polysilicon surface-micromachined structure
built on top of a silicon wafer. Polysilicon springs suspend the
structure over the surface of the wafer and provide a resistance
against acceleration forces. Deflection of the structure is
measured using a differential capacitor that consists of inde-
pendent fixed plates and plates attached to the moving mass.
The fixed plates are driven by 180° out-of-phase square waves.
Acceleration deflects the beam and unbalances the differential
capacitor, resulting in an output square wave whose amplitude
is proportional to acceleration. Phase-sensitive demodulation
techniques are then used to rectify the signal and determine
the direction of the acceleration.
The demodulator’s output is amplified and brought off-
chip through a 32 kΩ resistor. The user then sets the signal
bandwidth of the device by adding a capacitor. This filtering
improves measurement resolution and helps prevent aliasing.
PERFORMANCE
Rather than using additional temperature compensation
circuitry, innovative design techniques were used to ensure
built-in high performance. As a result, there is neither quanti-
zation error nor nonmonotonic behavior, and temperature
hysteresis is very low (typically less than 5 m
g
over the 20°C
to +70°C temperature range).
Figure 11 shows the zero
g
output performance of eight parts
(X- and Y-axis) over a 20°C to +70°C temperature range.
Figure 14 demonstrates the typical sensitivity shift over tem-
perature for supply voltages of 3 V. This is typically better than
±1% over the 20°C to +70°C temperature range.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADXL322EB | Small and Thin +-2 g Accelerometer |
| ADXL322JCP | Small and Thin +-2 g Accelerometer |
| ADXL322JCP-REEL | Small and Thin +-2 g Accelerometer |
| ADXL323 | Small, Low Power, 2-Axis 【3 g i MEMS Accelerometer |
| ADXL323KCPZ | Small, Low Power, 2-Axis 【3 g i MEMS Accelerometer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADXL322EB | 功能描述:加速傳感器開(kāi)發(fā)工具 EB: 2 AXIS 2 G Low Cost Evaluation Board RoHS:否 制造商:Murata 工具用于評(píng)估:SCA3100-D04 加速:2 g 傳感軸:Triple Axis 接口類型:SPI 工作電壓:3.3 V |
| ADXL322JCP | 制造商:Analog Devices 功能描述:Accelerometer Dual 制造商:Analog Devices 功能描述:Accelerometer Dual ±2g 2.5V/3.3V/5V 378mV/g to 462mV/g 16-Pin LFCSP EP 制造商:Analog Devices 功能描述:ACCELEROMETER DUAL 2G 2.4V TO 6V 378MV/G TO 462MV/G 16LFCSP - Trays 制造商:Analog Devices 功能描述:+/- 2G ACCELEROMETER 制造商:Analog Devices 功能描述:2 }2g 420mV/g 2.5V to 5V Bulk 制造商:Analog Devices 功能描述:ACCELEROMETER 2 AXIS 2G LFCSP-16 制造商:Analog Devices 功能描述:ACCELEROMETER, 2 AXIS, 2G, LFCSP-16 制造商:Analog Devices 功能描述:2 Axis Accelerometer 2G ADXL322JCP |
| ADXL322JCP# | 制造商:Analog Devices 功能描述: |
| ADXL322JCP | 制造商:Analog Devices 功能描述:Acceleration Sensor IC |
| ADXL322JCP-REEL | 功能描述:IC ACCELEROMETER DUAL 16LFCSP RoHS:是 類別:傳感器，轉(zhuǎn)換器 >> 加速計(jì) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:SCA1000 軸:X，Y 加速范圍:±1.7g 靈敏度:1.2V/g 電源電壓:4.75 V ~ 5.25 V 輸出類型:數(shù)字 帶寬:50±30Hz 接口:SPI 安裝類型:表面貼裝 封裝/外殼:12-SMD 供應(yīng)商設(shè)備封裝:12-SMD 其它名稱:551-1007-1 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。