Electronic Components Datasheet Search |
|
MAX1452EAE Datasheet(PDF) 9 Page - Maxim Integrated Products |
|
MAX1452EAE Datasheet(HTML) 9 Page - Maxim Integrated Products |
9 / 24 page Typical Nonratiometric Operating Circuit (12VDC < VPWR < 40VDC) Nonratiometric output configuration enables the sensor power to vary over a wide range. A high performance voltage reference, such as the MAX6105, is incorporat- ed in the circuit to provide a stable supply and refer- ence for MAX1452 operation. A typical example is shown in Figure 3. Nonratiometric operation is valuable when wide ranges of input voltage are to be expected and the system A/D or readout device does not enable ratiometric operation. Typical 2-Wire, Loop Powered, 4–20mA Operating Circuit Process Control systems benefit from a 4–20mA current loop output format for noise immunity, long cable runs, and 2-wire sensor operation. The loop voltages can range from 12VDC to 40VDC and are inherently nonra- tiometric. The low current consumption of the MAX1452 allows it to operate from loop power with a simple 4–20mA drive circuit efficiently generated using the integrated uncommitted op amp (Figure 4). Internal Calibration Registers (ICRs) The MAX1452 has five 16-bit internal calibration regis- ters that are loaded from EEPROM, or loaded from the serial digital interface. Data can be loaded into the internal calibration regis- ters under three different circumstances. Normal Operation, Power-On Initialization Sequence • The MAX1452 has been calibrated, the Secure- Lock byte is set (CL[7:0] = FFhex) and UNLOCK is low. • Power is applied to the device. • The power-on reset functions have completed. • Registers CONFIG, OTCDAC, and FSOTCDAC are refreshed from EEPROM. • Registers ODAC, and FSODAC are refreshed from the temperature indexed EEPROM locations. Normal Operation, Continuous Refresh • The MAX1452 has been calibrated, the Secure- Lock byte has been set (CL[7:0] = FFhex) and UNLOCK is low. • Power is applied to the device. • The power-on reset functions have completed. • The temperature index timer reaches a 1ms time period. Low-Cost Precision Sensor Signal Conditioner _______________________________________________________________________________________ 9 MAX1452 VPWR +12V TO +40V OUT GND RSTC RISRC 0.1 µF 0.1µF 0.1 µF 0.1 µF INM TEST VSS INP 7 9 2 16 1 8 3 BDR VDDF OUT 5 6 4 FSOTC ISRC SENSOR MAX6105 5V GND 1 3 IN 2 1k Ω VDD G S D 2N4392 Figure 3. Basic Nonratiometric Output Configuration |
Similar Part No. - MAX1452EAE |
|
Similar Description - MAX1452EAE |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |