參數(shù)資料
型號： MAX1452EAE+T
廠商： Maxim Integrated Products
文件頁數(shù)： 25/25頁
文件大?。?/td> 0K
描述： IC SENSOR SIGNAL COND 16-SSOP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,000
類型： 信號調(diào)節(jié)器
輸入類型： 模擬
輸出類型： 模擬
接口： 串行
電流 - 電源： 2.5mA
安裝類型： 表面貼裝
封裝/外殼： 16-SSOP（0.209"，5.30mm 寬）
供應(yīng)商設(shè)備封裝： 16-SSOP
包裝： 帶卷 (TR)
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
相關(guān)PDF資料
PDF描述
MAX1452CAE+TC8H IC SENSOR SIGNAL COND 16SSOP
MAX1452CAE+T IC SENSOR SIGNAL COND 16-SSOP
MAX1452CAE+C8H IC SENSOR SIGNAL COND 16-SSOP
2-221128-3 CONN PLUG BNC 50 OHM CRIMP GOLD
2-221185-9 PLUG,75 OHM,COML BNC
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