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参数资料
| 型号： | MAX1234EVC16 |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 33/44页 |
| 文件大小： | 0K |
| 描述： | EV SYSTEM/EV KIT MAX1233/MAX1234 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1,000 |
| 系列： | * |
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±15kV ESD-Protected Touch-Screen
Controllers Include DAC and Keypad Controller
HOST WRITES
ADC
CONTROL REGISTER
START CLOCK
SET BUSY
LOW
TEMPERATURE INPUT 1
HOST WRITES
ADC
CONTROL REGISTER
START CLOCK
SET BUSY
LOW
TEMPERATURE INPUT 1
AND TEMPERATURE INPUT 2
CONVERT
TEMPERATURE INPUT 2
NO
IS ADC
REFERENCE IN
AUTO POWER-DOWN
MODE?
NO
IS ADC
REFERENCE IN
AUTO POWER-DOWN
MODE?
NO
IS DATA
AVERAGING DONE?
YES
POWER UP REFERENCE
POWER UP
YES
POWER UP REFERENCE
POWER UP
YES
STORE TEMPERATURE INPUT 2 IN
TEMP2 REGISTER
ADC
CONVERT
TEMPERATURE INPUT 1
POWER DOWN
ADC
POWER DOWN REFERENCE
SET BUSY HIGH
ADC
CONVERT
TEMPERATURE INPUT 1
POWER DOWN
ADC
POWER DOWN REFERENCE
SET BUSY HIGH
NO
IS DATA
NO
IS DATA
AVERAGING DONE?
TURN OFF CLOCK
AVERAGING DONE?
TURN OFF CLOCK
YES
DONE
STORE TEMPERATURE INPUT 1 IN
TEMP1 REGISTER
Figure 18. Single Temperature Measurement Process
where:
Δ V = V (I N) - V (I1) (in mV)
T(°K) = 2.68(°K/mV) × Δ V(mV)
T(°C) = [2.68(°K/mV) × Δ 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
YES
DONE
STORE TEMPERATURE INPUT 1 IN
TEMP1 REGISTER
Figure 19. Differential Temperature Measurement Process
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.
______________________________________________________________________________________
33
相关PDF资料 |
PDF描述 |
|---|---|
| MAX1402EVC16 | EVAL KIT FOR MAX1402 |
| MAX16802BEVKIT | EVAL KIT FOR MAX16802 |
| MAX16803EVKIT+ | EVAL KIT FOR MAX16803 |
| MAX16806EVMAXQUSB+ | EVAL KIT FOR MAX16806 |
| MAX16807EVKIT+ | EVAL KIT FOR MAX16807 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1234EVKIT | 制造商:Maxim Integrated Products 功能描述:+15KV ESD-PROTECTED TOUCH-SCREEN CO - Rail/Tube |
| MAX1236EUA | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1236EUA+ | 功能描述:模数转换器 - ADC 12-Bit 4Ch 94.4ksps 5.5V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1236EUA+T | 功能描述:模数转换器 - ADC 12-Bit 4Ch 94.4ksps 5.5V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1236EUA-T | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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