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| 型号： | MAX1452EVKIT-CS |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 25/25页 |
| 文件大小： | 0K |
| 描述： | EVAL KIT FOR MAX1452 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 主要目的： | 接口，传感器信号调节器 |
| 已用 IC / 零件： | MAX1452 |
| 已供物品： | 板 |
MAX1452
Low-Cost Precision Sensor
Signal Conditioner
9
Maxim Integrated
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 MAX15006B, is incorpo-
rated 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.
MAX1452
VPWR
+12V TO +40V
OUT
GND
RSTC
RISRC
1.0
μF 2.2μF
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
MAX15006B
OUT
GND
1
5
IN
8
30
Ω
VDD
G
S
D
2N4392
Figure 3. Basic Nonratiometric Output Configuration
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1452EVKIT-NS | 功能描述:数据转换 IC 开发工具 Low-Cost Precision Sensor Signal Conditioner RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| MAX1452EVKIT-NS+ | 功能描述:数据转换 IC 开发工具 Programmers, Development Systems Eval and Demo Boards and Kits - KIT EVAL MAX1452-NS RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| MAX1452KEY | 功能描述:温度传感器开发工具 MAX1455 Eval Kit RoHS:否 制造商:Texas Instruments 产品类型:Temperature Sensors and Control ICs 工具用于评估:MSP430G2553 接口类型:USB 工作电源电压: 工作电源电流: |
| MAX14530EEVKIT+ | 制造商:Maxim Integrated Products 功能描述:OVERVOLTAGE PROTECTION WITH USB CHARGER DETECTION LDO AND ES - Boxed Product (Development Kits) |
| MAX14530EEWC+T | 制造商:Maxim Integrated Products 功能描述:OVERVOLTAGE PROTECTION WITH CHARGER DETECTION - Tape and Reel |
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