參數(shù)資料
型號(hào)： ADUC812BS
廠商： ANALOG DEVICES INC
元件分類： 微控制器/微處理器
英文描述： Circular Connector; No. of Contacts:37; Series:LJT07R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:25; Circular Contact Gender:Socket; Circular Shell Style:Jam Nut Receptacle; Insert Arrangement:25-37
中文描述： 8-BIT, FLASH, 11.0592 MHz, MICROCONTROLLER, PQFP52
封裝： MQFP-52
文件頁(yè)數(shù)： 7/31頁(yè)
文件大?。?/td> 543K
代理商： ADUC812BS
REV. 0
ADuC812
–7–
Mnemonic
Type
Function
ALE
O
Address Latch Enable, Logic Output. This output is used to latch the low byte (and middle byte for 24-bit
address space accesses) of the address into external memory during normal operation. It is activated every
six oscillator periods except during an external data memory access.
External Access Enable, Logic Input. When held high, this input enables the device to fetch code from
internal program memory locations 0000H to 1FFFH. When held low this input enables the device to fetch
all instructions from external program memory.
Port 0 is an 8-bit open drain bidirectional I/O port. Port 0 pins that have 1s written to them float and in that
state can be used as high impedance inputs. Port 0 is also the multiplexed low order address and data bus
during accesses to external program or data memory. In this application it uses strong internal pull-ups
when emitting 1s.
EA
I
P0.7–P0.0
(A0–A7)
I/O
TERMINOLOGY
ADC SPECIFICATIONS
Integral Nonlinearity
This is the maximum deviation of any code from a straight line
passing through the endpoints of the ADC transfer function.
The endpoints of the transfer function are zero scale, a point
1/2 LSB below the first code transition and full scale, a point
1/2 LSB above the last code transition.
Differential Nonlinearity
This is the difference between the measured and the ideal 1 LSB
change between any two adjacent codes in the ADC.
Offset Error
This is the deviation of the first code transition (0000 . . . 000)
to (0000 . . . 001) from the ideal, i.e., +1/2 LSB.
Full-Scale Error
This is the deviation of the last code transition from the ideal
AIN voltage (Full Scale – 1.5 LSB) after the offset error has
been adjusted out.
Signal to (Noise + Distortion) Ratio
This is the measured ratio of signal to (noise + distortion) at the
output of the A/D converter. The signal is the rms amplitude of
the fundamental. Noise is the rms sum of all nonfundamental
signals up to half the sampling frequency (f
S
/2), excluding dc.
The ratio is dependent upon the number of quantization levels
in the digitization process; the more levels, the smaller the quan-
tization noise. The theoretical signal to (noise +distortion) ratio
for an ideal N-bit converter with a sine wave input is given by:
Signal to
(
Noise + Distortion
)
=
(6.02
N
+ 1.76)
dB
Thus for a 12-bit converter, this is 74 dB.
Total Harmonic Distortion
Total Harmonic Distortion is the ratio of the rms sum of the
harmonics to the fundamental.
DAC SPECIFICATIONS
Relative Accuracy
Relative accuracy or endpoint linearity is a measure of the maxi-
mum deviation from a straight line passing through the end-
points of the DAC transfer function. It is measured after
adjusting for zero error and full-scale error.
Voltage Output Settling Time
This is the amount of time it takes for the output to settle to a
specified level for a full-scale input change.
Digital to Analog Glitch Impulse
This is the amount of charge injected into the analog output
when the inputs change state. It is specified as the area of the
glitch in nV sec.
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADUC812BS 制造商:Analog Devices 功能描述:12-BIT ADC WITH EMBEDDED
aduc812bs-01 制造商:Analog Devices 功能描述:
ADUC812BS-REEL 制造商:Analog Devices 功能描述:MCU 8-bit ADuC8xx 8052 CISC 8KB Flash 3.3V/5V 52-Pin MQFP T/R
ADUC812BSZ 功能描述:IC ADC 12BIT MULTICH MCU 52-MQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 標(biāo)準(zhǔn)包裝:250 系列:56F8xxx 核心處理器:56800E 芯體尺寸:16-位 速度:60MHz 連通性:CAN，SCI，SPI 外圍設(shè)備:POR，PWM，溫度傳感器，WDT 輸入/輸出數(shù):21 程序存儲(chǔ)器容量:40KB（20K x 16） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:6K x 16 電壓 - 電源 (Vcc/Vdd):2.25 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 6x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:48-LQFP 包裝:托盤 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323
ADUC812BSZ-01 制造商:Analog Devices 功能描述:12-BIT ADC WITH EMBEDDED MCU I.C.
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