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參數(shù)資料
| 型號： | ADUC846BCP8-5 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | MicroConverter, Dual 16-Bit ADCs with Embedded 62kB FLASH MCU |
| 中文描述： | 16-BIT, FLASH, 12.58 MHz, MICROCONTROLLER, QCC56 |
| 封裝： | 8 X 8 MM, LFCSP-56 |
| 文件頁數(shù)： | 7/20頁 |
| 文件大小： | 1984K |
| 代理商： | ADUC846BCP8-5 |
ADuC846
REV. PrA
-7-
PRELIMINARY TECHNICAL DATA
NOTES
1
2
3
4 The primary ADC is factory calibrated at 25°C with AVDD = DVDD = 5 V yielding this full-scale error of 10
μ
V. If user power supply or temperature
conditions are significantly different from these, an Internal Full-Scale Calibration will restore this error to 10
μ
V. A system zero-scale and full-scale
calibration will remove this error altogether.
5
Gain Error Drift is a span drift. To calculate Full-Scale Error Drift, add the Offset Error Drift to the Gain Error Drift times the full-scale input.
6
The auxiliary ADC is factory calibrated at 25°C with AVDD = DVDD = 5 V yielding this full-scale error of –2.5 LSB. A system zero-scale and full-scale
calibration will remove this error altogether.
7
DAC linearity and ac specifications are calculated using: reduced code range of 48 to 4095, 0 to VREF, reduced code range of 100 to 3950, 0 to VDD.
8
Gain Error is a measure of the span error of the DAC.
9
In general terms, the bipolar input voltage range to the primary ADC is given by RangeADC = ±(VREF 2
RN
)/125, where:
VREF = REFIN(+) to REFIN(–) voltage and VREF = 1.25 V when internal ADC VREF is selected.
RN = decimal equivalent of RN2, RN1, RN0
e.g., VREF = 2.5 V and RN2, RN1, RN0 = 1, 1, 0 the RangeADC = ±1.28 V, In unipolar mode, the effective range is 0 V to 1.28 V in our example.
10 1.25 V is used as the reference voltage to the ADC when internal VREF is selected via XREF0 and XREF1 bits in ADC0CON and ADC1CON, respectively.
11 In bipolar mode, the Auxiliary ADC can only be driven to a minimum of AGND – 30 mV as indicated by the Auxiliary ADC absolute AIN voltage limits. The
bipolar range is still –VREF to +VREF; however, the negative voltage is limited to –30 mV.
12 The ADuC846BCP (CSP Package) has been qualified and tested with the base of the CSP Package floating.
13 Pins configured in SPI Mode, pins configured as digital inputs during this test.
14 Pins configured in I
2
C Mode only.
15 Flash/EE Memory Reliability Characteristics apply to both the Flash/EE program memory and Flash/EE data memory.
16 Endurance is qualified to 100 Kcycles as per JEDEC Std. 22 method A117 and measured at –40 °C, +25°C, +85°C, and +125°C. Typical endurance at 25°C is
700 Kcycles.
17 Retention lifetime equivalent at junction temperature (TJ) = 55°C as per JEDEC Std. 22, Method A117. Retention lifetime based on an activation energy of
0.6eV will derate with junction temperature.
18 Power Supply current consumption is measured in Normal, Idle, and Power-Down Modes under the following conditions:
Normal Mode: Reset = 0.4 V, Digital I/O pins = open circuit, Core Clk changed via CD bits in PLLCON, Core Executing internal software loop.
Idle Mode: Reset = 0.4 V, Digital I/O pins = open circuit, Core Clk changed via CD bits in PLLCON, PCON.0 = 1, Core Execution suspended in idle mode.
Power-Down Mode: Reset = 0.4 V, All P0 pins and P1.2–P1.7 Pins = 0.4 V, All other digital I/O pins are open circuit, Core Clk changed via CD bits in
PLLCON, PCON.1 = 1, Core Execution suspended in power-down mode, OSC turned ON or OFF via OSC_PD bit (PLLCON.7) in PLLCON SFR.
19 DVDD power supply current will increase typically by 3 mA (3 V operation) and 10 mA (5 V operation) during a Flash/EE memory program or erase cycle.
Specifications subject to change without notice
Temperature Range for ADuC844BS (MQFP package) is –40°C to +125°C.
Temperature Range for ADuC844BCP (CSP package) is –40°C to +85°C.
These numbers are not production tested but are guaranteed by design and/or characterization data on production release.
System Zero-Scale Calibration can remove this error.
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