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参数资料
型号： MAX1234EGI
厂商： MAXIM INTEGRATED PRODUCTS INC
元件分类： 消费家电
英文描述： 【15kV ESD-Protected Touch-Screen Controllers Include DAC and Keypad Controller
中文描述： SPECIALTY CONSUMER CIRCUIT, QCC28
封装： 5 X 5 MM, 0.80 MM HEIGHT, QFN-28
文件页数： 33/44页
文件大小： 706K
代理商： MAX1234EGI
M
±15kV ESD-Protected Touch-Screen
Controllers Include DAC and Keypad Controller
______________________________________________________________________________________
33
where:
V = V (I N) - V (I1) (in mV)
T(
°
K) = 2.68(
°
K/mV)
×
V(mV)
T(
°
C) = [2.68(
°
K/mV)
×
V(mV) - 273
°
K]
°
C/
°
K
This differential conversion method does not require a
test temperature calibration and can provide much
improved absolute temperature measurement. In the
differential conversion method, however, the resolution
is 1.6
°
C/LSB (2.5V reference) and 0.65
°
C/LSB (1V ref-
erence) with a typical accuracy of
±
3
°
C.
Figure
19
shows the differential temperature measurement-
process.
Note:
The bias current for each diode temperature
measurement is only turned ON during the acquisition
and, therefore, does not noticeably increase power
consumption.
TEMPERATURE INPUT 1
DONE
NO
IS DATA
AVERAGING DONE
STORE TEMPERATURE INPUT 1 IN
TEMP1 REGISTER
POWER DOWN
ADC
POWER UP
ADC
POWER UP REFERENCE
CONVERT
TEMPERATURE INPUT 1
POWER DOWN REFERENCE
TURN OFF CLOCK
HOST WRITES
ADC
CONTROL REGISTER
START CLOCK
IS ADC
REFERENCE IN
AUTO POWER-DOWN
MODE
NO
YES
SET BUSY
LOW
YES
SET BUSY HIGH
Figure 18. Single Temperature Measurement Process
TEMPERATURE INPUT 1
AND TEMPERATURE INPUT 2
DONE
NO
IS DATA
AVERAGING DONE
STORE TEMPERATURE INPUT 1 IN
TEMP1 REGISTER
POWER DOWN
ADC
POWER UP
ADC
POWER UP REFERENCE
CONVERT
TEMPERATURE INPUT 1
POWER DOWN REFERENCE
TURN OFF CLOCK
HOST WRITES
ADC
CONTROL REGISTER
START CLOCK
IS ADC
REFERENCE IN
AUTO POWER-DOWN
MODE
NO
YES
SET BUSY
LOW
YES
SET BUSY HIGH
NO
IS DATA
AVERAGING DONE
STORE TEMPERATURE INPUT 2 IN
TEMP2 REGISTER
CONVERT
TEMPERATURE INPUT 2
YES
Figure 19. Differential Temperature Measurement Process
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相关代理商/技术参数
参数描述
MAX1234EGI+ 制造商:Maxim Integrated Products 功能描述:TOUCH SCREEN CONTROLLER 28-PIN QFN EP - Rail/Tube
MAX1234EGI-T 功能描述:触摸屏转换器和控制器 RoHS:否 制造商:Microchip Technology 类型:Resistive Touch Controllers 输入类型:3 Key 数据速率:140 SPS 分辨率:10 bit 接口类型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 电源电压:2.5 V to 5.25 V 电源电流:17 mA 工作温度:- 40 C to + 85 C 封装 / 箱体:SSOP-20
MAX1234ETI+ 功能描述:触摸屏转换器和控制器 4Ch uWire QSPI/SPI Touch Interface RoHS:否 制造商:Microchip Technology 类型:Resistive Touch Controllers 输入类型:3 Key 数据速率:140 SPS 分辨率:10 bit 接口类型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 电源电压:2.5 V to 5.25 V 电源电流:17 mA 工作温度:- 40 C to + 85 C 封装 / 箱体:SSOP-20
MAX1234ETI+T 功能描述:触摸屏转换器和控制器 4Ch uWire QSPI/SPI Touch Interface RoHS:否 制造商:Microchip Technology 类型:Resistive Touch Controllers 输入类型:3 Key 数据速率:140 SPS 分辨率:10 bit 接口类型:4-Wire, 5-Wire, 8-Wire, I2C, SPI 电源电压:2.5 V to 5.25 V 电源电流:17 mA 工作温度:- 40 C to + 85 C 封装 / 箱体:SSOP-20
MAX1234EVC16 功能描述:数据转换 IC 开发工具 MAX1233/34 Eval Kit 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
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