参数资料
型号: ADUC834BSZ
厂商: Analog Devices Inc
文件页数: 23/80页
文件大小: 0K
描述: IC ADC DUAL16/24BIT W/MCU 52MQFP
产品培训模块: Process Control
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: EBI/EMI,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: 62KB(62K 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): 2.7 V ~ 5.25 V
数据转换器: A/D 3x16b,4x24b; D/A 1x12b
振荡器型: 内部
工作温度: -40°C ~ 125°C
封装/外壳: 52-QFP
包装: 托盘
产品目录页面: 738 (CN2011-ZH PDF)
REV. A
ADuC834
–3–
Parameter
ADuC834
Test Conditions/Comments
Unit
ADC SPECIFICATIONS
Conversion Rate
5.4
On Both Channels
Hz min
105
Programmable in 0.732 ms Increments
Hz max
Primary ADC
No Missing Codes
2
24
20 Hz Update Rate
Bits min
Resolution
13.5
Range =
± 20 mV, 20 Hz Update Rate
Bits p-p typ
18.5
Range =
± 2.56 V, 20 Hz Update Rate
Bits p-p typ
Output Noise
See Tables X and XI
Output Noise Varies with Selected
in ADuC834 ADC
Update Rate and Gain Range
Description
Integral Nonlinearity
± 15
1 LSB16
ppm of FSR max
Offset Error
3
± 3
V typ
Offset Error Drift
± 10
nV/
°C typ
Full-Scale Error
4
± 10
V typ
Gain Error Drift
5
± 0.5
ppm/
°C typ
ADC Range Matching
± 2AIN = 18 mV
V typ
Power Supply Rejection (PSR)
113
AIN = 7.8 mV, Range =
± 20 mV
dBs typ
80
AIN = 1 V, Range =
± 2.56 V
dBs min
Common-Mode DC Rejection
On AIN
95
At DC, AIN = 7.8 mV, Range =
± 20 mV dBs min
113
At DC, AIN = 1 V, Range =
± 2.56 V
dBs typ
On REFIN
125
At DC, AIN = 1 V, Range =
± 2.56 V
dBs typ
Common-Mode 50 Hz/60 Hz Rejection
2
20 Hz Update Rate
On AIN
95
50 Hz/60 Hz
± 1Hz, AIN = 7.8 mV,
dBs min
Range =
± 20 mV
90
50 Hz/60 Hz
± 1Hz, AIN = 1 V,
dBs min
Range =
± 2.56 V
On REFIN
90
50 Hz/60 Hz
± 1Hz, AIN = 1 V,
dBs min
Range =
± 2.56 V
Normal Mode 50 Hz/60 Hz Rejection
2
On AIN
60
50 Hz/60 Hz
± 1Hz, 20 Hz Update Rate
dBs min
On REFIN
60
50 Hz/60 Hz
± 1Hz, 20 Hz Update Rate
dBs min
Auxiliary ADC
No Missing Codes
2
16
Bits min
Resolution
16
Range =
± 2.5 V, 20 Hz Update Rate
Bits p-p typ
Output Noise
See Table XII in
Output Noise Varies with Selected
ADuC834 ADC
Update Rate
Description
Integral Nonlinearity
± 15
ppm of FSR max
Offset Error
3
–2
LSB typ
Offset Error Drift
1
V/
°C typ
Full-Scale Error
6
–2.5
LSB typ
Gain Error Drift
5
± 0.5
ppm/
°C typ
Power Supply Rejection (PSR)
80
AIN = 1 V, 20 Hz Update Rate
dBs min
Normal Mode 50 Hz/60 Hz Rejection
2
On AIN
60
50 Hz/60 Hz
± 1Hz
dBs min
On REFIN
6050 Hz/60 Hz
± 1 Hz, 20 Hz Update Rate
dBs min
DAC PERFORMANCE
DC Specifications
7
Resolution
12
Bits
Relative Accuracy
± 3LSB typ
Differential Nonlinearity
–1
Guaranteed 12-Bit Monotonic
LSB max
Offset Error
± 50
mV max
Gain Error
8
± 1AVDD Range
% max
± 1VREF Range
% typ
AC Specifications
2, 7
Voltage Output Settling Time
15
Settling Time to 1 LSB of Final Value
s typ
Digital-to-Analog Glitch Energy
10
1 LSB Change at Major Carry
nVs typ
SPECIFICATIONS1
(AVDD = 2.7 V to 3.6 V or 4.75 V to 5.25 V, DVDD = 2.7 V to 3.6 V or 4.75 V to
5.25 V, REFIN(+) = 2.5 V, REFIN(–) = AGND; AGND = DGND = 0 V; XTAL1/XTAL2 =
32.768 kHz Crystal; all specifications TMIN, to TMAX unless otherwise noted.)
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