參數(shù)資料
型號(hào)： ADUC847BCPZ8-5
廠商： Analog Devices Inc
文件頁數(shù)： 54/108頁
文件大?。?/td> 0K
描述： IC MCU FLASH W/24BIT ADC 56-CSP
標(biāo)準(zhǔn)包裝： 1
系列： MicroConverter® ADuC8xx
核心處理器： 8052
芯體尺寸： 8-位
速度： 12.58MHz
連通性： I²C，SPI，UART/USART
外圍設(shè)備： POR，PSM，PWM，溫度傳感器，WDT
輸入/輸出數(shù)： 34
程序存儲(chǔ)器容量： 8KB（8K x 8）
程序存儲(chǔ)器類型： 閃存
EEPROM 大小： 4K x 8
RAM 容量： 2.25K x 8
電壓 - 電源 (Vcc/Vdd)： 4.75 V ~ 5.25 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 10x24b; D/A 1x12b，2x16b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 56-VFQFN 裸露焊盤，CSP
包裝： 托盤
配用： EVAL-ADUC847QSZ-ND - KIT DEV QUICK START FOR ADUC847
Data Sheet
ADuC845/ADuC847/ADuC848
Rev. C | Page 5 of 108
Parameter
Min
Typ
Max
Unit
Conditions
Normal Mode Rejection 50 Hz/60 Hz2
On AIN
75
dB
50 Hz/60 Hz ± 1 Hz, 16.6 Hz Fadc, SF = 52H,
chop on, REJ60 on
100
dB
50 Hz ± 1 Hz, 16.6 Hz Fadc, SF = 52H, chop on
67
dB
50 Hz/60 Hz ± 1 Hz, 50 Hz Fadc, SF = 52H,
chop off, REJ60 on
100
dB
50 Hz ± 1 Hz, 50 Hz Fadc, SF = 52H, chop off
Analog Input Current2
±1
nA
TMAX = 85°C, buffer on
±5
nA
TMAX = 125°C, buffer on
Analog Input Current Drift
±5
pA/°C
TMAX = 85°C, buffer on
±15
pA/°C
TMAX = 125°C, buffer on
Average Input Current
±125
nA/V
±2.56 V range, buffer bypassed
Average Input Current Drift
±2
pA/V/°C
Buffer bypassed
Absolute AIN Voltage Limits2
AGND +
0.1
AVDD
0.1
V
AIN1…AIN10 and AINCOM with buffer enabled
Absolute AIN Voltage Limits2
AGND
0.03
AVDD +
0.03
V
AIN1…AIN10 and AINCOM with buffer bypassed
EXTERNAL REFERENCE INPUTS
REFIN(+) to REFIN(–) Voltage
2.5
V
REFIN refers to both REFIN and REFIN2
REFIN(+) to REFIN(–) Range2
1
AVDD
V
REFIN refers to both REFIN and REFIN2
Average Reference Input Current
±1
A/V
Both ADCs enabled
Average Reference Input Current
Drift
±0.1
nA/V/°C
NOXREF Trigger Voltage
0.3
0.65
V
NOXREF (ADCSTAT.4) bit active if VREF > 0.3 V, and
inactive if VREF > 0.65 V
Common-Mode Rejection
DC Rejection
125
dB
AIN = 1 V, range = ±2.56 V
50 Hz/60 Hz Rejection2
90
dB
50 Hz/60 Hz ± 1 Hz, AIN = 1 V,
range = ±2.56 V, SF = 82
Normal Mode Rejection 50 Hz/60 Hz2
75
dB
50 Hz/60 Hz ±1 Hz, AIN = 1 V, range = ±2.56 V,
SF = 52H, chop on, REJ60 on
100
dB
50 Hz ± 1 Hz, AIN = 1 V, range = ±2.56 V,
SF = 52H, chop on
67
dB
50 Hz/60 Hz ± 1 Hz, AIN = 1 V, range = ±2.56 V,
SF = 52H, chop off, REJ60 on
100
dB
50 Hz ± 1 Hz, AIN = 1 V, range = ±2.56 V,
SF = 52H, chop off
AUXILIARY ADC (ADuC845 Only)
Conversion Rate
5.4
105
Hz
Chop on
16.06
1365
Hz
Chop off
No Missing Codes2
24
Bits
≤26.7 Hz update rate, chop enabled
24
Bits
80.3 Hz update rate, chop disabled
Resolution
Output Noise
Output noise varies with selected update rates.
Integral Nonlinearity
±15
ppm of FSR
1 LSB16
Offset Error3
±3
V
Chop on
±0.25
LSB16
Chop off
Offset Error Drift2
10
nV/°C
Chop on
200
nV/°C
Chop off
Full-Scale Error4
±0.5
LSB16
Gain Error Drift4
±0.5
ppm/°C
Power Supply Rejection
80
dB
AIN = 1 V, range = ±2.56 V, chop enabled
80
dB
AIN = 1 V, range = ±2.56 V, chop disabled
Footnotes at end of table.
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