ADUC847 Analog Devices, ADUC847 Datasheet - Page 6

• Manufacturer Part Number: ADUC847
• Description: Precision Analog Microcontroller: 12MIPS 8052 Flash MCU + 10-Ch 24-Bit ADC + 12-Bit DAC
• Manufacturer: Analog Devices

Specifications of ADUC847

• Mcu Core: 8052
• Mcu Speed (mips): 12
• Sram (bytes): 2304Bytes
• Gpio Pins: 34
• Adc # Channels: 10
• Other: PWM

ADuC845/ADuC847/ADuC848
Parameter
AUXILIARY ADC ANALOG INPUTS
(ADuC845 Only)
ADC SYSTEM CALIBRATION
DAC
INTERNAL REFERENCE
TEMPERATURE SENSOR
(ADuC845 Only)
Differential Input Voltage Ranges
Bipolar Mode (ADC1CON.5 = 0)
Unipolar Mode (ADC1CON.5 = 1)
Average Analog Input Current
Analog Input Current Drift
Absolute AIN/AINCOM Voltage
Normal Mode Rejection 50 Hz/60 Hz
Full-Scale Calibration Limit
Zero-Scale Calibration Limit
Input Span
Voltage Range
Resistive Load
Capactive Load
Output Impedance
I
DC Specifications
AC Specifications
ADC Reference
DAC Reference
Accuracy
Thermal Impedance
Footnotes at end of table.
SINK
On AIN and REFIN
Resolution
Relative Accuracy
Differential Nonlinearity
Offset Error
Gain Error
Voltage Output Settling Time
Digital-to-Analog Glitch Energy
Reference Voltage
Power Supply Rejection
Reference Tempco
Reference Voltage
Power Supply Rejection
Reference Tempco
Limits
2, 7
2, 8
8
5, 6
2
Min
A
0.03
75
100
67
100
0.8 × FS
12
1.25 − 1%
2.5 – 1%
−1.05 × FS
GND
−
Typ
±V
0 – V
125
±2
0 – V
0 – AV
0.5
50
±3
±1
1.25
45
100
2.5
50
±100
±2
52
10
100
15
10
90
REF
REF
REF
DD
Rev. B | Page 6 of 108
+1.05 × FS
1.25 + 1%
2.5 + 1%
2.1 × FS
Max
AV
0.03
−1
±50
±1
DD
+
Unit
V
V
nA/V
pA/V/°C
V
dB
dB
dB
dB
V
V
V
V
V
kΩ
pF
Ω
µA
Bits
LSB
LSB
mV
%
%
µs
nVs
V
dB
ppm/°C
±1% V
dB
ppm/°C
°C
°C/W
°C/W
Conditions
REFIN = REFIN(+) − REFIN(−) (or Int 1.25 V
REFIN = REFIN(+) − REFIN(−) (or Int 1.25 V
50 Hz/60 Hz ± 1 Hz, 16.6 Hz Fadc, SF = 52H,
50 Hz ± 1 Hz, 16.6 Hz Fadc, SF = 52H, chop on
50 Hz/60 Hz ± 1 Hz, 50 Hz Fadc, SF = 52H,
50 Hz ± 1 Hz, 50 Hz Fadc, SF = 52H, chop off
DACCON.2 = 0
DACCON.2 = 1
From DAC output to AGND
From DAC output to AGND
Guaranteed 12-bit monotonic
AV
V
1 LSB change at major carry
Chop enabled
Initial tolerance @ 25°C, V
Initial tolerance @ 25°C, V
MQFP
LFCSP
Settling time to 1 LSB of final value
REF
chop on, REJ60 on
chop off, REJ60 on
DD
range
range
DD
DD
= 5 V
= 5 V
REF
REF
)
)