收藏本站
 
HMC1001/1002/1021/1022
 
www.honeywell.com
 
  11
APPLICATION CIRCUITS 
 
The following are typical application circuits using the HMC100x and HMC102x sensors.
 
TWO AXIS COMPASS OR MAGNETOMETER
 
Figure 5 shows the typical schematic diagram.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 5  2-Axis Compass or Magnetometer
 
From Figure 5, the typical power supplied for VDD is nominally 5 volts, with about 8 volts for the set/reset strap supply
(VSR). A pair of complementary power MOSFETs provides the electronic switch functions, driving the set/reset minus
pins with the set/reset plus pins returned to the MOSFET ground. The MOSFETs are driven by typical 5 volt logic with
normally high levels expected when not pulsing. Each logic transition creates a very high current pulse, as high-to-low
transitions turn-on the P-channel FET while turning-off the N-channel FET. This transfers some of the energy from the
10uf reservoir capacitor to the pair of 0.47uf capacitors while providing a positive pulse. A negative pulse is performed on
the low-to-high logic transition as the P-channel FET is turned off and the N-channel FET is turned on. Then the energy
from the pair of 0.47uf capacitors is discharged through the set/reset straps and the N -channel MOSFET. Ceramic
capacitors with a low-ESR characteristic are required for best pulse performance.
 
Since the sensor output difference voltage is amplified by low cost operational amplifiers with a low supply voltage feature
(LMV324N), the amplifier requires a half supply voltage reference (VREF). This reference voltage is formed via a buffered
rail-splitter circuit, using a spare op-amp and resistors. The 1 nano-farad capacitors are used to bandwidth limit the
sensor, and to suppress interference. The resistors around the op-amp are chosen for earths magnetic field strength
(about 0.6 gauss) levels and to match with the sensor impedance. The 4.99k-ohm resistors are a bridging impedance that
is normally chosen to be 4 to 10 times larger than the sensor bridge resistance elements (HMC1002) at 850 ohms. The
1
R1
850
2
R2
850
R3
850
R4
850
VCC
VEE
4
3
6
X1A
LMV324N
R5
4.99K
R6
4.99K
R7
360K
C1
1N
VDD
VDD
R8
360K
VREF
8
R9
850
9
R10
850
R11
850
R12
850
VCC
VEE
10
11
12
X1B
LMV324N
R13
4.99K
R14
4.99K
R15
360K
C2
1N
VDD
VDD
R16
360K
VREF
16
R17
1.5
R18
1.5
XOUT
YOUT
VCC
VEE
15
X1C
LMV324N
VDD
R19
1K
R20
1K
VDD
VREF
C3
0.1U
17
18
14
X2
IRF7105P
C4
10U
X3
IRF7105N
C5
0.47U
C6
0.47U
13
R21
100
SR_IN
VSR
HMC1002
1
R1
850
2
R2
850
R3
850
R4
850
VCC
VEE
4
3
6
X1A
LMV324N
R5
4.99K
R6
4.99K
R7
360K
C1
1N
VDD
VDD
R8
360K
VREF
8
R9
850
9
R10
850
R11
850
R12
850
VCC
VEE
10
11
12
X1B
LMV324N
R13
4.99K
R14
4.99K
R15
360K
C2
1N
VDD
VDD
R16
360K
VREF
16
R17
1.5
R18
1.5
XOUT
YOUT
VCC
VEE
15
X1C
LMV324N
VDD
R19
1K
R20
1K
VDD
VREF
C3
0.1U
17
18
14
X2
IRF7105P
C4
10U
X3
IRF7105N
C5
0.47U
C6
0.47U
13
R21
100
SR_IN
VSR
HMC1002
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
HMC1021D IC SENSOR MAGN HI TEMP CER 8DIP
HMC1042L-TR 2-AXIS MAG SENSOR 16 PIN LCC
HMC1053 SENSOR MAGNETIC 3-AXIS 16-PLCC
HMU-PJAT1K-A20R1 CONN MU ATTENUATOR FIXED 20DB
HOA1870-033 SENSOR INFRARED
HOA1873-013 SENSOR PHOTODARLINGTON NPN SLOT
HOA1874-011 SNSR OPTO TRANS 3.05MM TRANSM
HOA1877-002 SENSOR PHOTOTRANS NPN SLOTTED
相关代理商/技术参数
HMC1002 功能描述:SENSOR LINEAR MAGN 2AXIS 20-SOIC RoHS:否 类别:传感器，转换器 >> 磁性 - 霍尔效应，数字式开关，线性，罗盘 (IC) 系列:- 标准包装:1 系列:- 传感范围:20mT ~ 80mT 类型:旋转 电源电压:4.5 V ~ 5.5 V 电流 - 电源:15mA 电流 - 输出（最大）:- 输出类型:数字式，PWM，8.5 位串行 特点:可编程 工作温度:-40°C ~ 150°C 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商设备封装:20-SSOP 包装:Digi-Reel® 其它名称:AS5132-HSST-500DKR
HMC1002RC 制造商:HONEYWELL 功能描述:New
HMC1002-RC 制造商:Honeywell Microelectronics And Precision Sensors 功能描述:MAGNETIC SENSOR; Magnetic Field Min:-2G; Magnetic Field Max:2G; Leaded Process Compatible:Yes; Output Type:Differential; Resolution:40G; Sensitivity Range:3mV/V/G; Sensor Output:Voltage; Sensor Terminals:SMD ;RoHS Compliant: Yes
HMC1002-RC 制造商:Honeywell Sensing and Control 功能描述:MAGNETIC SENSOR OUTPUT TYPE:DIFFERENTIAL
HMC1002-TR 功能描述:SENSOR LINEAR MAGN 2AXIS 20-SOIC RoHS:是 类别:传感器，转换器 >> 磁性 - 霍尔效应，数字式开关，线性，罗盘 (IC) 系列:- 标准包装:1 系列:- 传感范围:20mT ~ 80mT 类型:旋转 电源电压:4.5 V ~ 5.5 V 电流 - 电源:15mA 电流 - 输出（最大）:- 输出类型:数字式，PWM，8.5 位串行 特点:可编程 工作温度:-40°C ~ 150°C 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商设备封装:20-SSOP 包装:Digi-Reel® 其它名称:AS5132-HSST-500DKR
HMC1010LP4E 制造商:Hittite Microwave Corp 功能描述:RF RMS PWR DETECTOR 3.9GHZ 24SMT
HMC1010LP4ETR 功能描述:RF Detector IC General Purpose 0Hz ~ 3.9GHz -50dBm ~ 10dBm ±1dB 24-VFQFN Exposed Pad 制造商:analog devices inc. 系列:- 包装:剪切带（CT） 零件状态:有效 频率:0Hz ~ 3.9GHz RF 类型:通用 输入范围:-50dBm ~ 10dBm 精度:±1dB 电压 - 电源:4.5 V ~ 5.5 V 电流 - 电源:50mA 封装/外壳:24-VFQFN 裸露焊盘 标准包装:1
HMC1013LP4E 制造商:Hittite Microwave Corp 功能描述:IC AMP SDLVA 67DB 24SMD