参数资料
型号: ADUC848BCPZ8-5
厂商: Analog Devices Inc
文件页数: 54/108页
文件大小: 0K
描述: IC MCU FLASH W/16BIT ADC 56-CSP
标准包装: 1
系列: MicroConverter® ADuC8xx
核心处理器: 8052
芯体尺寸: 8-位
速度: 12.58MHz
连通性: I²C,SPI,UART/USART
外围设备: POR,PSM,PWM,温度传感器,WDT
输入/输出数: 34
程序存储器容量: 8KB(8K x 8)
程序存储器类型: 闪存
EEPROM 大小: 4K x 8
RAM 容量: 2.25K x 8
电压 - 电源 (Vcc/Vdd): 4.75 V ~ 5.25 V
数据转换器: A/D 10x16b; D/A 1x12b,2x16b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 56-VFQFN 裸露焊盘,CSP
包装: 托盘
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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