- 您现在的位置：买卖IC网 > PDF目录11722 > ADUC7039BCP6Z (Analog Devices Inc)IC MCU ARM7 BATT SENSER 32LFCSP PDF资料下载
参数资料
| 型号： | ADUC7039BCP6Z |
| 厂商： | Analog Devices Inc |
| 文件页数： | 41/92页 |
| 文件大小： | 0K |
| 描述： | IC MCU ARM7 BATT SENSER 32LFCSP |
| 标准包装： | 1 |
| 系列： | MicroConverter® ADuC7xxx |
| 核心处理器： | ARM7 |
| 芯体尺寸： | 16/32-位 |
| 速度： | 20.48MHz |
| 连通性： | LIN，SPI |
| 外围设备： | POR，温度传感器，WDT |
| 输入/输出数： | 6 |
| 程序存储器容量： | 64KB（32K x 16） |
| 程序存储器类型： | 闪存 |
| RAM 容量： | 1K x 32 |
| 电压 - 电源 (Vcc/Vdd)： | 3.5 V ~ 18 V |
| 数据转换器： | A/D 2x16b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 115°C |
| 封装/外壳： | 32-VFQFN 裸露焊盘，CSP |
| 包装： | 托盘 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页当前第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页
ADuC7039
Data Sheet
Rev. D | Page 46 of 92
Understanding the Offset and Gain Calibration Registers
The output of the average block in the ADC signal flow can
be considered a fractional number with a span for a ±full-scale
input of approximately ±0.75. The span is less than ±1.0 because
there is attenuation in the modulator to accommodate some
overrange capacity on the input signal. The exact value of the
attenuation varies slightly from part-to-part because of
manufacturing tolerances.
The offset coefficient is read from the ADC0OF calibration
register. This value is a 16-bit, twos complement number. The
range of this number, in terms of the signal chain, is effectively
±1.0. Therefore, 1 LSB of the ADC0OF register is not the same
as 1 LSB of ADC0DAT.
A positive value of ADC0OF indicates that when offset is
subtracted from the output of the filter, a negative value is
added. The nominal value of this register is 0x0000, indicating
zero offset is to be removed. The actual offset of the ADC can
vary slightly from part-to-part and at different PGA gains. The
offset within the ADC is minimized if the chopping mode is
active (ADCFLT[15] = 1).
The gain coefficient is a unitless scaling factor. The 16-bit value
in this register is divided by 16,384 and then multiplied by the
offset corrected value. The nominal value of this register equals
0x5555, corresponding to a multiplication factor of 1.3333. This
scales the nominal ±0.75 signal to produce a full-scale output
signal of ±1.0 which is checked for overflow/underflow and
converted to twos complement or unipolar mode, as appro-
priate, before being output to the data register.
The actual gain, and the required scaling coefficient for zero
gain error, varies slightly from part to part and at different PGA
settings. The value downloaded into ADC0GN at power-on-
reset represents the scaling factor for a PGA gain = 4. There is
some level of gain error if this value is used at different PGA
settings. User code can run ADC calibrations and overwrite the
calibration coefficients to correct the gain error at the current
PGA setting.
In summary, the simplified ADC transfer function can be
described as
NOM
REF
IN
OUT
ADCGN
ADCOF
V
PGA
V
ADC
×
×
=
This equation is valid for the voltage/temperature channel ADC.
For the current channel ADC,
NOM
REF
IN
OUT
ADCGN
ADCOF
K
V
PGA
V
ADC
×
=
×
where K is dependent on the PGA gain setting and ADC mode.
For PGA gains of 4 and 32, the K factor is 1. For a PGA gain of
512, the K factor is 8.
ADC CONFIGURATION
Fast Temperature Conversion Mode
The battery temperature can be derived through the on-chip
temperature sensor. By default, the time to a first valid (fully
settled) result after switching the ADC input from the voltage
to the temperature channel or from the temperature to the
voltage channel is three ADC conversion cycles with chop
mode turned off as shown in Figure 17.
Figure 17. Default Temperature Mode, Chop Off
A fast mode is provided on the temperature channel to
minimize the switching delay between voltage conversion and
temperature conversions as shown in Figure 18 and in Table 36.
Figure 18. Fast Temperature Mode, Chop Off ( ADCFLT = 0x07)
A request for a fast temperature conversion is executed with a
delay of one ADC conversion. The fast temperature mode must
be cleared after the temperature measurement is available but
before a new temperature request.
Table 36. Fast Temperature Mode
Interrupt
Valid Flags
User code
1
I and V
Voltage = ADC1DAT.
2
I and V
Voltage = ADC1DAT.
Set fast temperature request bit.
3
I and V
Voltage = ADC1DAT.
This data must be read for the next
temperature channel flag to be valid.
4
I and T
Temperature = ADC1DAT.
Clear fast temperature request bit.
5
I
6
I
7
I and V
Voltage = ADC1DAT.
8
I and V
Voltage = ADC1DAT.
VALID V/T
CONVERSION
V/T-ADC
SAMPLING
I-ADC
SAMPLING
I-ADC
INTERRUPT
V
T
CHANNEL SWITCHING REQUEST
V
T
08463-
031
V
T
VALID V/T
CONVERSION
V/T-ADC
SAMPLING
I-ADC
SAMPLING
I-ADC
INTERRUPT
CHANNEL SWITCHING REQUEST
V
08463-
032
相关PDF资料 |
PDF描述 |
|---|---|
| ADUC7022BCPZ32 | IC MCU FLSH 32K ANLG I/O 40LFCSP |
| VE-BTJ-IX-F1 | CONVERTER MOD DC/DC 36V 75W |
| ADUC7023BCPZ62I | IC MCU 12BIT 62KB FLASH 32LFCSP |
| D38999/26MB98HN | CONN PLUG 6POS STRAIGHT W/PINS |
| VE-B7L-IW-F1 | CONVERTER MOD DC/DC 28V 100W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADUC7039BCP6Z-RL | 功能描述:IC MCU ARM7 BATT SENSER 32LFCSP RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC7xxx 标准包装:38 系列:Encore!® XP® 核心处理器:eZ8 芯体尺寸:8-位 速度:5MHz 连通性:IrDA，UART/USART 外围设备:欠压检测/复位，LED，POR，PWM，WDT 输入/输出数:16 程序存储器容量:4KB（4K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:1K x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 3.6 V 数据转换器:- 振荡器型:内部 工作温度:-40°C ~ 105°C 封装/外壳:20-SOIC（0.295"，7.50mm 宽） 包装:管件 其它名称:269-4116Z8F0413SH005EG-ND |
| ADUC7039WBCPZ | 制造商:Analog Devices 功能描述:FLASH 64K ARM7 DUAL 16-BIT ADC LIN I.C. - Trays 制造商:Analog Devices 功能描述:IC MCU ARM7 64KB FLASH 32LFCSP 制造商:Analog Devices 功能描述:Flash 64k ARM7 Dual 16-Bit ADC LIN I.C. |
| ADUC7039WBCPZ-RL | 制造商:Analog Devices 功能描述:FLASH 64K ARM7 DUAL 16-BIT ADC LIN I.C. - Tape and Reel 制造商:Analog Devices 功能描述:IC MCU ARM7 64KB FLASH 32LFCSP 制造商:Analog Devices 功能描述:Flash 64k ARM7 Dual 16-Bit ADC LIN I.C. |
| ADUC7060 | 制造商:AD 制造商全称:Analog Devices 功能描述:Low Power, Precision Analog Microcontroller, Dual Sigma-Delta ADCs, Flash/EE, ARM7TDMI |
| ADUC7060BCPZ32 | 功能描述:IC MCU 24BIT 32KB FLASH 48LFCSP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC7xxx 产品培训模块:MCU Product Line Introduction XMEGA Introduction AVR XMEGA USB Connectivity 标准包装:90 系列:AVR® XMEGA 核心处理器:AVR 芯体尺寸:8/16-位 速度:32MHz 连通性:I²C，IrDA，SPI，UART/USART 外围设备:欠压检测/复位，DMA，POR，PWM，WDT 输入/输出数:50 程序存储器容量:192KB（96K x 16） 程序存储器类型:闪存 EEPROM 大小:4K x 8 RAM 容量:16K x 8 电压 - 电源 (Vcc/Vdd):1.6 V ~ 3.6 V 数据转换器:A/D 16x12b; D/A 2x12b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:64-TQFP 包装:托盘 配用:ATSTK600-RC14-ND - STK600 SOCKET/ADAPTER 64TQFPATSTK600-TQFP64-ND - STK600 SOCKET/ADAPTER 64-TQFPATAVRONEKIT-ND - KIT AVR/AVR32 DEBUGGER/PROGRMMRATAVRISP2-ND - PROGRAMMER AVR IN SYSTEM |
发布紧急采购，3分钟左右您将得到回复。