TMS320F28027, TMS320F28027-Q1, TMS320F28027F, TMS320F28027F-Q1, TMS320F28026
TMS320F28026-Q1, TMS320F28026F, TMS320F28026F-Q1, TMS320F28023
TMS320F28023-Q1, TMS320F28022, TMS320F28021, TMS320F28020, TMS320F280200
ZHCSA13P –NOVEMBER 2008 –REVISED FEBRUARY 2021
www.ti.com.cn
9.9.1.1.3.2 ADC 电源模式
IDDA
ADC 工作模式
条件
单位
ADC 时钟启用
带隙开启(ADCBGPWD = 1)
基准开启(ADCREFPWD = 1)
ADC 加电(ADCPWDN = 1)
13
mA
模式A - 工作模式
ADC 时钟启用
带隙开启(ADCBGPWD = 1)
基准开启(ADCREFPWD = 1)
ADC 加电(ADCPWDN = 0)
4
mA
mA
mA
模式B - 快速唤醒模式
模式C - 仅比较器模式
模式D - 关闭模式
ADC 时钟启用
带隙开启(ADCBGPWD = 1)
基准开启(ADCREFPWD = 0)
ADC 加电(ADCPWDN = 0)
1.5
ADC 时钟启用
带隙开启(ADCBGPWD = 0)
基准开启(ADCREFPWD = 0)
ADC 加电(ADCPWDN = 0)
0.075
9.9.1.1.3.3 内部温度传感器
9.9.1.1.3.3.1 Temperature Sensor Coefficient
PARAMETER(1)
MIN
TYP
0.18(3) (2)
1750
MAX
UNIT
°C/LSB
LSB
TSLOPE
Degrees C of temperature movement per measured ADC LSB change
of the temperature sensor
TOFFSET
ADC output at 0°C of the temperature sensor
(1) The temperature sensor slope and offset are given in terms of ADC LSBs using the internal reference of the ADC. Values must be
adjusted accordingly in external reference mode to the external reference voltage.
(2) Output of the temperature sensor (in terms of LSBs) is sign-consistent with the direction of the temperature movement. Increasing
temperatures will give increasing ADC values relative to an initial value; decreasing temperatures will give decreasing ADC values
relative to an initial value.
(3) ADC temperature coeffieicient is accounted for in this specification
9.9.1.1.3.4 ADC 加电控制位时序
9.9.1.1.3.4.1 ADC 加电延迟
参数(1)
最小值
最大值
单位
td(PWD)
1
ms
加电后，ADC 的延迟时间将稳定
(1) 时序保持与ADC 模块的兼容性。在首次转换前td(PWD) ms，2802x ADC 支持同时驱动所有3 个位。
ADCPWDN/
ADCBGPWD/
ADCREFPWD/
ADCENABLE
td(PWD)
Request for ADC
Conversion
图9-19. ADC 转换时序
Copyright © 2022 Texas Instruments Incorporated
Submit Document Feedback
75
Product Folder Links: TMS320F28027 TMS320F28027-Q1 TMS320F28027F TMS320F28027F-Q1
TMS320F28026 TMS320F28026-Q1 TMS320F28026F TMS320F28026F-Q1 TMS320F28023 TMS320F28023-
Q1 TMS320F28022 TMS320F28021 TMS320F28020 TMS320F280200
TI [ TEXAS INSTRUMENTS ]
