参数资料
| 型号： | MAX1233ETI+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 27/44页 |
| 文件大小： | 0K |
| 描述： | IC CNTRLR TOUCH 28-TQFN |
| 其它有关文件： | Automotive Product Guide |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 60 |
| 类型： | 电阻 |
| 触摸面板接口： | 4 线 |
| 输入数/键： | 1，4 x 4 小键盘 |
| 分辨率（位）： | 8，10，12 b |
| 数据接口： | MICROWIRE?，QSPI?，串行，SPI? |
| 数据速率/采样率 (SPS，BPS)： | 50k |
| 电压基准： | 外部，内部 |
| 电源电压： | 2.7 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-WFQFN 裸露焊盘 |
| 供应商设备封装： | 28-TQFN-EP（5x5） |
| 包装： | 管件 |
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MAX1233/MAX1234
±15kV ESD-Protected Touch-Screen
Controllers Include DAC and Keypad Controller
______________________________________________________________________________________
33
where:
ΔV = V (I N) - V (I1) (in mV)
T(°K) = 2.68(°K/mV)
×ΔV(mV)
T(°C) = [2.68(°K/mV)
×ΔV(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 |
|---|---|
| MAX1233ETI+ | 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 |
| MAX1233ETI+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 |
| MAX1234EGI | 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 |
| 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 |
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