參數(shù)資料
型號(hào): ADUC824BS
廠商: ANALOG DEVICES INC
元件分類: 微控制器/微處理器
英文描述: MicroConverter, Dual-Channel 16-/24-Bit ADCs with Embedded FLASH MCU
中文描述: 8-BIT, FLASH, 12.58 MHz, MICROCONTROLLER, PQFP52
封裝: PLASTIC, MQFP-52
文件頁數(shù): 4/68頁
文件大?。?/td> 1060K
代理商: ADUC824BS
REV. B
–4–
ADuC824
Parameter
ADuC824BS
Test Conditions/Comments
Unit
INTERNAL REFERENCE
ADC Reference
Reference Voltage
Power Supply Rejection
Reference Tempco
DAC Reference
Reference Voltage
Power Supply Rejection
Reference Tempco
1.25
±
1%
45
100
Initial Tolerance @ 25
°
C, V
DD
= 5 V
V min/max
dBs typ
ppm/
°
C typ
2.5
±
1%
50
±
100
Initial Tolerance @ 25
°
C, V
DD
= 5 V
V min/max
dBs typ
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
0 0 0
(Unipolar Mode 0 to 20 mV)
0 0 1
(Unipolar Mode 0 to 40 mV)
0 1 0
(Unipolar Mode 0 to 80 mV)
0 1 1
(Unipolar Mode 0 to 160 mV)
1 0 0
(Unipolar Mode 0 to 320 mV)
1 0 1
(Unipolar Mode 0 to 640 mV)
1 1 0
(Unipolar Mode 0 to 1.28 V)
1 1 1
(Unipolar Mode 0 to 2.56 V)
Bipolar Mode (ADC0CON3 = 0)
±
20
±
40
±
80
±
160
±
320
±
640
±
1.28
±
2.56
±
1
±
5
AGND + 100 mV
AV
DD
– 100 mV
mV
mV
mV
mV
mV
mV
V
V
nA max
pA/
°
C typ
V min
V max
Analog Input Current
2
Analog Input Current Drift
Absolute AIN Voltage Limits
Auxiliary ADC
Input Voltage Range
9, 10
0 to V
REF
Unipolar Mode, for Bipolar Mode
See Note 11
Input Current Will Vary with Input
Voltage on the Unbuffered Auxiliary ADC
V
Average Analog Input Current
Average Analog Input Current Drift
2
Absolute AIN Voltage Limits
11
125
±
2
AGND – 30 mV
AV
DD
+ 30 mV
nA/V typ
pA/V/
°
C typ
V min
V max
External Reference Inputs
REFIN(+) to REFIN(–) Range
2
1
AV
DD
1
±
0.1
0.3
0.65
V min
V max
μ
A/V typ
nA/V/
°
C typ
V min
V max
Average Reference Input Current
Average Reference Input Current Drift
‘NO Ext. REF’ Trigger Voltage
Both ADCs Enabled
NOXREF Bit Active if V
REF
< 0.3 V
NOXREF Bit Inactive if V
REF
> 0.65 V
ADC SYSTEM CALIBRATION
Full-Scale Calibration Limit
Zero-Scale Calibration Limit
Input Span
+1.05
×
FS
–1.05
×
FS
+0.8
×
FS
+2.1
×
FS
V max
V min
V min
V max
ANALOG (DAC) OUTPUTS
Voltage Range
0 to V
REF
0 to AV
DD
10
100
0.5
50
DACRN = 0 in DACCON SFR
DACRN = 1 in DACCON SFR
From DAC Output to AGND
From DAC Output to AGND
V typ
V typ
k
typ
pF typ
typ
μ
A typ
Resistive Load
Capacitive Load
Output Impedance
I
SINK
TEMPERATURE SENSOR
Accuracy
Thermal Impedance (
θ
JA
)
±
2
90
°
C typ
°
C/W typ
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