参数资料
型号: ADUC814BRU
厂商: Analog Devices Inc
文件页数: 5/72页
文件大小: 0K
描述: IC ADC 12BIT W/FLASH MCU 28TSSOP
标准包装: 50
系列: MicroConverter® ADuC8xx
核心处理器: 8052
芯体尺寸: 8-位
速度: 16.78MHz
连通性: I²C,SPI,UART/USART
外围设备: POR,PSM,温度传感器,WDT
输入/输出数: 17
程序存储器容量: 8KB(8K x 8)
程序存储器类型: 闪存
EEPROM 大小: 640 x 8
RAM 容量: 256 x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.5 V
数据转换器: A/D 6x12b; D/A 2x12b
振荡器型: 内部
工作温度: -40°C ~ 125°C
封装/外壳: 28-TSSOP(0.173",4.40mm 宽)
包装: 管件
配用: EVAL-ADUC814QSZ-ND - KIT DEV FOR ADUC814 MICROCONVRTR
ADuC814
Rev. A | Page 13 of 72
TYPICAL PERFORMANCE CURVES
The typical performance plots presented in this section
illustrate typical performance of the ADuC814 under various
operating conditions. Note that all typical plots in this section
were generated using the ADuC814BRU, i.e., the B-grade part.
Figure 3 and Figure 4 show typical ADC integral nonlinearity
(INL) errors from ADC Code 0 to Code 4095 at 5 V and 3 V
supplies, respectively. The ADC is using its internal reference
(2.5 V) and operating at a sampling rate of 152 kHz. The typical
worst-case errors in both plots are just less than 0.3 LSBs.
ADC CODES
LSBs
0
–0.4
–0.3
–0.2
–0.1
0
0.1
0.4
0.3
0.2
1023
511
3583
3071
2559
2047
1535
4095
02748-A
-010
AVDD/DVDD = 5V
fS = 152kHz
Figure 3. Typical INL Error, VDD = 5 V
ADC CODES
LSBs
0
–0.4
–0.3
–0.2
–0.1
0
0.1
0.4
0.3
0.2
1023
511
3583
3071
2559
2047
1535
4095
02748-A
-011
AVDD/DVDD = 3V
fS = 152kHz
Figure 4. Typical INL Error, VDD = 3 V
Figure 5 and Figure 6 show the variation in worst-case positive
(WCP) INL and worst-case negative (WCN) INL versus
external reference input voltage.
EXTERNAL REFERENCE (V)
1.2
WCP
IN
L
(LS
B
s
)
0.8
0.4
0
–0.4
–0.6
1.0
0.6
0.2
–0.2
AVDD /DVDD = 5V
f
S = 152kHz
0.5
1.0
1.5
2.0
2.5
5.0
0.6
0.4
0
–0.4
–0.6
0.2
–0.2
WCN
IN
L
(LS
B
s
)
WCN INL
WCP INL
02748-A
-012
Figure 5. Typical Worst-Case INL Error vs. VREF, VDD = 5 V
EXTERNAL REFERENCE (V)
WCP–I
N
L
(LS
B
s
)
0.8
0.4
0
–0.4
–0.8
0.6
0.2
–0.2
AVDD/DVDD = 3V
f
S = 152kHz
0.5
1.5
2.5
WCN
IN
L
(LS
B
s
)
–0.6
0.8
0.4
0
–0.4
–0.8
0.6
0.2
–0.2
–0.6
3.0
2.0
1.0
WCN INL
WCP INL
02748-A
-013
Figure 6. Typical Worst-Case INL Error vs. VREF, VDD = 3 V
Figure 7 and Figure 8 show typical ADC differential nonlinearity
(DNL) errors from ADC Code 0 to Code 4095 at 5 V and 3 V
supplies, respectively. The ADC is using its internal reference
(2.5 V) and operating at a sampling rate of 152 kHz. The typical
worst-case errors in both plots are just less than 0.2 LSBs.
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