參數(shù)資料
型號(hào)： ADUC7032BSTZ-8V-RL
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 70/128頁(yè)
文件大?。?/td> 0K
描述： IC BATTERY SENSOR PREC 48-LQFP
標(biāo)準(zhǔn)包裝： 1
系列： MicroConverter® ADuC7xxx
核心處理器： ARM7
芯體尺寸： 16/32-位
速度： 20.48MHz
連通性： LIN，SPI，UART/USART
外圍設(shè)備： POR，PSM，溫度傳感器，WDT
輸入/輸出數(shù)： 9
程序存儲(chǔ)器容量： 96KB（48K x 16）
程序存儲(chǔ)器類型： 閃存
RAM 容量： 1.5K x 32
電壓 - 電源 (Vcc/Vdd)： 3.5 V ~ 18 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 2x16b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 105°C
封裝/外殼： 48-LQFP
包裝： 標(biāo)準(zhǔn)包裝
其它名稱： ADUC7032BSTZ-8V-RLDKR
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Preliminary Technical Data
ADuC7032
Rev. PrD | Page 46 of 128
VOLTAGE CHANNEL ADC (V-ADC)
This ADC is intended to convert battery voltage As with the
Current Channel ADC described previously, this ADC employs
an identical sigma-delta conversion technique, including a
modified Sinc3 low-pass filter to give a valid 16-Bit data
conversion result at programmable output rates from 4Hz to 8
KHz. An external RC filter network is not required as this is
implemented internally in the voltage channel.
The external battery voltage (VBAT) is routed to the ADC
input via an on-chip high voltage, resistive attenuator This
must be enabled/disabled via HVCFG1[7].
The time to a first valid (fully settled) result on the voltage
channel is three ADC conversion cycles with chop mode turned
off and two ADC conversion cycles with chop mode turned on.
This ADC is again buffered but unlike the current channel has
a fixed VBAT input range of 0 V to 28.8V (assuming an
internal 1.2V reference). A top level overview of this ADC
signal chain is shown in Figure 16 below.
TEMPERATURE CHANNEL ADC (T-ADC)
This ADC is intended to convert battery temperature. The
battery temperature can be derived via the on-chip temperature
sensor or an external temperature sensor input.
The time to a first valid (fully settled) result after an input
channel switch on the temperature channel is three ADC
conversion cycles with chop mode turned off and two ADC
conversion cycles with chop mode turned on.
As with the Current and Voltage Channel ADCs, this ADC
employs an identical sigma-delta conversion technique,
including a modified Sinc3 low-pass filter to give a valid 16-Bit
data conversion result at programmable output rates from 4Hz
to 8 KHz
SIGMA-
DELTA
MODULATOR
PROGRAMMABLE
DIGITAL
FILTER
SIGMA-DELTA A/D CONVERTER
VREF
CHOP
BUF
45R
2R
1R
VBAT
OUTPUT
AVERAGE
CHOP
OUTPUT AVERAGE
AS PART OF THE CHOPPING
IMPLEMENTATION, EACH
DATA-WORD OUTPUT
FROM THE FILTER IS
SUMMED AND AVERAGED
WITH ITS PREDECESSOR
SIGMA-DELTA ADC
THE SIGMA-DELTA
ARCHITECTURE ENSURES
16 BITS NO MISSING
CODES.
PRECISION
REFERENCE
THE INTERNAL 5PPM/C
REFERNCE IS ROUTED TO THE
ADC BY DEFAULT. AN EXTERNAL
REFRENCEON THE VREF PIN CAN
ALSO BE SELECTED
ANALOG INPUT
PROGRAMMABLE
CHOPPING
THE INPUTS ARE
ALTERNATELY REVERSED
THROUGH THE
CONVERSION CYCLE.
BUFFER AMPLIFIER
THE BUFFER AMPLIFIER
PRESENTS A HIGH
IMPEDANCE INPUT STAGE
FOR THE ANALOG INPUT.
THE MODULATOR PROVIDES
AHIGHFREQUENCY 1-BIT
DATA STREAM (THE OUTPUT
OF WHICH IS ALSO CHOPPED)
TO THE DIGITAL FILTER,
THE DUTY CYCLE OF WHICH
REPRESENTS THE SAMPLED
ANALOG INPUT VOLTAGE.
SIGMA-DELTA
MODULATOR
PROGRAMMABLE
DIGITAL FILTER
THE SINC3 FILTER REMOVES
QUANTIZATION NOISE INTRODUCED
BY THE MODULATOR. THE UPDATE
RATE AND BANDWIDTH OF THIS
FILTER ARE PROGRAMMABLE
VIA THE ADCFLT MMR
THE OUPUT WORD FROM THE
DIGITAL FILTER IS SCALED
BY THE CALIBRATION
COEFFICIENTS BEFORE
BEING PROVIDED AS
THE CONVERSION RESULT.
OUTPUT SCALING
OFFSET
COEFFICIENT
OUTPUT
FORMAT
ADC
RESULT
+
-
x
INTERNAL
REFERNCE
GAIN
COEFFICIENT
FINAL (16-BIT) ADC RESULT
ADC RESULT
DIFFERENTIAL
ATTENUATOR
DIVIDE BY 24, INPUT
ATTENUATOR
Figure 16 : Voltage/ Temperature ADC, Top Level Overview
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ADUC7033BSTZ-88 功能描述:IC BATT SENSOR PREC 48LQFP RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:Impedance Track™ 功能:燃料，電量檢測(cè)計(jì)/監(jiān)控器 電池化學(xué):鋰離子（Li-Ion） 電源電壓:2.4 V ~ 2.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:20-TSSOP 包裝:帶卷 (TR) 產(chǎn)品目錄頁(yè)面:1020 (CN2011-ZH PDF) 配用:BQ27350EVM-ND - BQ27350EVM 其它名稱:296-21665-2
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