- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄11653 > MAX1452EAE+T (Maxim Integrated Products)IC SENSOR SIGNAL COND 16-SSOP PDF資料下載
參數(shù)資料
| 型號(hào)： | MAX1452EAE+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 6/25頁 |
| 文件大小： | 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(hào)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
14
Maxim Integrated
The analog signal driven onto the OUT pin is deter-
mined by the value in the ALOC register. The signals
are specified in Table 15.
Test System Configuration
The MAX1452 is designed to support an automated
production test system with integrated calibration and
temperature compensation. Figure 7 shows the imple-
mentation concept for a low-cost test system capable
of testing many transducer modules connected in par-
allel. The MAX1452 allows for a high degree of flexibili-
ty in system calibration design. This is achieved by use
of single-wire digital communication and three-state
output nodes. Depending upon specific calibration
requirements one may connect all the OUTs in parallel
or connect DIO and OUT on each individual module.
Sensor Compensation Overview
Compensation requires an examination of the sensor
performance over the operating pressure and tempera-
ture range. Use a minimum of two test pressures (e.g.,
zero and full-span) and two temperatures. More test
pressures and temperatures result in greater accuracy.
A typical compensation procedure can be summarized
as follows:
Set reference temperature (e.g., +25°C):
Initialize each transducer by loading their respec-
tive registers with default coefficients (e.g., based
on mean values of offset, FSO and bridge resis-
tance) to prevent overload of the MAX1452.
Set the initial bridge voltage (with the FSODAC) to
half of the supply voltage. Measure the bridge volt-
age using the BDR or OUT pins, or calculate based
on measurements.
Calibrate the output offset and FSO of the transduc-
er using the ODAC and FSODAC, respectively.
Store calibration data in the test computer or
MAX1452 EEPROM user memory.
Set next test temperature:
Calibrate offset and FSO using the ODAC and FSO-
DAC, respectively.
Store calibration data in the test computer or
MAX1452 EEPROM user memory.
Calculate the correction coefficients.
Download correction coefficients to EEPROM.
Perform a final test.
Sensor Calibration and
Compensation Example
The MAX1452 temperature compensation design cor-
rects both sensor and IC temperature errors. This
enables the MAX1452 to provide temperature compen-
sation approaching the inherent repeatability of the
sensor. An example of the MAX1452’s capabilities is
shown in Figure 8.
A repeatable piezoresistive sensor with an initial offset
of 16.4mV and a span of 55.8mV was converted into a
compensated transducer (utilizing the piezoresistive
sensor with the MAX1452) with an offset of 0.5000V and
a span of 4.0000V. Nonlinear sensor offset and FSO
temperature errors, which were on the order of 20% to
30% FSO, were reduced to under ±0.1% FSO. The fol-
lowing graphs show the output of the uncompensated
sensor and the output of the compensated transducer.
Six temperature points were used to obtain this result.
DRIVEN BY TESTER
THREE-STATE
NEED WEAK
PULLUP
THREE-STATE
NEED WEAK
PULLUP
START-BIT
LSB
MSB
STOP-BIT
11 1 1 1 0 1 0 0 11 0 1 0 1 1 111 11 1
1 1 1 1 11 1 1
11
11 1 1
11 1
11
1
11
THREE-STATE
2ATIM +1 BYTE
TIMES
DIO
OUT
VALID OUT
HIGH IMPEDANCE
Figure 6. Analog Output Timing
Low-Cost Precision Sensor
Signal Conditioner
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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1452EVKIT-CS | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| MAX1452EVKIT-NS | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 Low-Cost Precision Sensor Signal Conditioner RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| MAX1452EVKIT-NS+ | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 Programmers, Development Systems Eval and Demo Boards and Kits - KIT EVAL MAX1452-NS RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| MAX1452KEY | 功能描述:溫度傳感器開發(fā)工具 MAX1455 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:Temperature Sensors and Control ICs 工具用于評估:MSP430G2553 接口類型:USB 工作電源電壓: 工作電源電流: |
| MAX14530EEVKIT+ | 制造商:Maxim Integrated Products 功能描述:OVERVOLTAGE PROTECTION WITH USB CHARGER DETECTION LDO AND ES - Boxed Product (Development Kits) |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。