- 您现在的位置：买卖IC网 > Datasheet目录986 > KITMPL115A2I2C (Freescale Semiconductor)KIT EVALUATION FOR PL115A2I2C Datasheet资料下载
参数资料
| 型号： | KITMPL115A2I2C |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 6/16页 |
| 文件大小： | 0K |
| 描述： | KIT EVALUATION FOR PL115A2I2C |
| 标准包装： | 1 |
| 传感器类型： | 压力 |
| 传感范围： | 50 ~ 115 kPa |
| 接口： | I²C |
| 电源电压： | 2.375 V ~ 5.5 V |
| 嵌入式： | 否 |
| 已供物品： | 板 |
| 已用 IC / 零件： | PL115A2I2C |
| 产品目录页面： | 2808 (CN2011-ZH PDF) |
Example Binary Format Definitions:
a0 Signed, Integer Bits = 12, Fractional Bits = 3 :
b1 Signed, Integer Bits = 2, Fractional Bits = 13 :
b2 Signed, Integer Bits = 1, Fractional Bits = 14 :
c12 Signed, Integer Bits = 0, Fractional Bits = 13, dec pt zero pad = 9 :
Padc Unsigned, Integer Bits = 10 :
Tadc Unsigned, Integer Bits =10 :
Coeff a0 = S I 11 I 10 I 9 I 8 I 7 I 6 I 5 I 4 I 3 I 2 I 1 I 0 . F 2 F 1 F 0
Coeff b1 = S I 1 I 0 . F 12 F 11 F 10 F 9 F 8 F 7 F 6 F 5 F 4 F 3 F 2 F 1 F 0
Coeff b2 = S I 0 . F 13 F 12 F 11 F 10 F 9 F 8 F 7 F 6 F 5 F 4 F 3 F 2 F 1 F 0
Coeff c12 = S 0 . 000 000 000 F 12 F 11 F 10 F 9 F 8 F 7 F 6 F 5 F 4 F 3 F 2 F 1 F 0
Padc U = I 9 I 8 I 7 I 6 I 5 I 4 I 3 I 2 I 1 I 0
Tadc U = I 9 I 8 I 7 I 6 I 5 I 4 I 3 I 2 I 1 I 0
NOTE: Negative coefficients are coded in 2’s complement notation.
3.2
Compensation
The 10-bit compensated pressure output, Pcomp, is calculated as follows:
Pcomp = a0 + ( b1 + c12 ? Tadc ) ? Padc + b2 ? Tadc
Eqn. 1
Where:
Padc is the 10-bit pressure ADC output of the MPL115A
Tadc is the 10-bit temperature ADC output of the MPL115A
a0 is the pressure offset coefficient
b1 is the pressure sensitivity coefficient
b2 is the temperature coefficient of offset (TCO)
c12 is the temperature coefficient of sensitivity (TCS)
Pcomp will produce a value of 0 with an input pressure of 50 kPa and will produce a full-scale value of 1023 with an input pressure
of 115 kPa.
---------------------- + 50
Pressure (kPa) = P comp
?
115 – 50
1023
Eqn. 2
3.3
Evaluation Sequence, Arithmetic Circuits
The following is an example of the calculation for Pcomp, the compensated pressure output. Input values are in bold.
c12x2 = c12 * Tadc
a1 = b1 + c12x2
a1x1 = a1 * Padc
y1 = a0 + a1x1
a2x2 = b2 * Tadc
Pcomp = y1 + a2x2
This can be calculated as a succession of Multiply Accumulates (MACs) operations of the form y = a + b * x:
a
b
X
+
y
x
MPL115A2
Sensors
6
Freescale Semiconductor, Inc.
相关PDF资料 |
PDF描述 |
|---|---|
| KITMPVZ5004EVK | KIT EVAL PRESSURE SENS BOARD |
| KN500B1/4 | SWITCH KNOB STRAIGHT .50" BLACK |
| KN5700B1/4 | SWITCH KNOB STRAIGHT .75" BLACK |
| KN700B1/4 | SWITCH KNOB STRAIGHT .75" BLACK |
| KS-100 | PROTECTIVE COVER FOR RELAYS |
相关代理商/技术参数 |
参数描述 |
|---|---|
| KITMPR03XEVM | 功能描述:光学传感器开发工具 CAPACITIVE 2-PAD TOUCH SENSOR CTRL RoHS:否 制造商:ams 工具用于评估: 接口类型: 最大工作温度: |
| KITMPR083EVM | 功能描述:光学传感器开发工具 8 POSITION ROTARY TOUCH RoHS:否 制造商:ams 工具用于评估: 接口类型: 最大工作温度: |
| KITMPR084EVM | 功能描述:光学传感器开发工具 8 TOUCH PADS RoHS:否 制造商:ams 工具用于评估: 接口类型: 最大工作温度: |
| KITMPR121EVM | 功能描述:触摸传感器开发工具 MPR121 Sensor Tool Box RoHS:否 制造商:Cypress Semiconductor 工具用于评估: 接口类型: 工作电压: 最大工作温度: |
| KITMPR121EVM | 制造商:Freescale Semiconductor 功能描述:Sensor Toolbox Proximity Sensor Kit |
发布紧急采购，3分钟左右您将得到回复。