參數(shù)資料
型號： EVAL-ADUC834QSZ
廠商： Analog Devices Inc
文件頁數(shù)： 34/80頁
文件大?。?/td> 0K
描述： KIT DEV QUICK START ADUC834
標準包裝： 1
系列： QuickStart™ 套件
類型： MCU
適用于相關產(chǎn)品： ADuC834
所含物品： 評估板，線纜，電源，軟件和文檔
REV. A
–4–
ADuC834
Parameter
ADuC834
Test Conditions/Comments
Unit
INTERNAL REFERENCE
ADC Reference
Reference Voltage
1.25
± 1%
Initial Tolerance @ 25
°C, VDD = 5 V
V min/max
Power Supply Rejection
45
dBs typ
Reference Tempco
100
ppm/
°C typ
DAC Reference
Reference Voltage
2.5
± 1%
Initial Tolerance @ 25
°C, VDD = 5 V
V min/max
Power Supply Rejection
50
dBs typ
Reference Tempco
± 100
ppm/
°C typ
ANALOG INPUTS/REFERENCE INPUTS
Primary ADC
Differential Input Voltage Ranges
9, 10
External Reference Voltage = 2.5 V
RN2, RN1, RN0 of ADC0CON Set to
Bipolar Mode (ADC0CON3 = 0)
± 20
0 0 0 (Unipolar Mode 0 mV to 20 mV)
mV
± 40
0 0 1 (Unipolar Mode 0 mV to 40 mV)
mV
± 80
0 1 0 (Unipolar Mode 0 mV to 80 mV)
mV
± 160
0 1 1 (Unipolar Mode 0 mV to 160 mV)
mV
± 320
1 0 0 (Unipolar Mode 0 mV to 320 mV)
mV
± 640
1 0 1 (Unipolar Mode 0 mV to 640 mV)
mV
± 1.28
1 1 0 (Unipolar Mode 0 V to 1.28 V)
V
± 2.56
1 1 1 (Unipolar Mode 0 V to 2.56 V)
V
Analog Input Current
2
± 1TMAX = 85°CnA max
± 5TMAX = 125°CnA max
Analog Input Current Drift
± 5TMAX = 85°CpA/°C typ
± 15
TMAX = 125°CpA/°C typ
Absolute AIN Voltage Limits
2
AGND + 100 mV
V min
AVDD – 100 mV
V max
Auxiliary ADC
Input Voltage Range
9, 10
0 to VREF
Unipolar Mode, for Bipolar Mode
V
See Note 11
Average Analog Input Current
125
Input Current Will Vary with Input
nA/V typ
Average Analog Input Current Drift
2
± 2
Voltage on the Unbuffered Auxiliary ADC pA/V/
°C typ
Absolute AIN Voltage Limits
2, 11
AGND – 30 mV
V min
AVDD + 30 mV
V max
External Reference Inputs
REFIN(+) to REFIN(–) Range
2
1V min
AVDD
V max
Average Reference Input Current
1
Both ADCs Enabled
A/V typ
Average Reference Input Current Drift
± 0.1
nA/V/
°C typ
‘NO Ext. REF’ Trigger Voltage
0.3
NOXREF Bit Active if VREF < 0.3 V
V min
0.65
NOXREF Bit Inactive if VREF > 0.65 V
V max
ADC SYSTEM CALIBRATION
Full-Scale Calibration Limit
+1.05
FS
V max
Zero-Scale Calibration Limit
–1.05
FS
V min
Input Span
0.8
FS
V min
2.1
FS
V max
ANALOG (DAC) OUTPUT
Voltage Range
0 to VREF
DACRN = 0 in DACCON SFR
V typ
0 to AVDD
DACRN = 1 in DACCON SFR
V typ
Resistive Load
10
From DAC Output to AGND
k
typ
Capacitive Load
100
From DAC Output to AGND
pF typ
Output Impedance
0.5
typ
ISINK
50
A typ
TEMPERATURE SENSOR
Accuracy
± 2
°C typ
Thermal Impedance ( JA)90
MQFP Package
°C/W typ
52
CSP Package (Base Floating)
12
°C/W typ
SPECIFICATIONS (continued)
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