ADUC834 Analog Devices, ADUC834 Datasheet - Page 4

• Manufacturer Part Number: ADUC834
• Description: Precision Analog Microcontroller: 1MIPS 8052 MCU + 62kB Flash + 16/24-Bit ADC + 12-Bit DAC
• Manufacturer: Analog Devices

Specifications of ADUC834

• Mcu Core: 8052
• Mcu Speed (mips): 1
• Sram (bytes): 2304Bytes
• Gpio Pins: 34
• Adc # Channels: 4
• Other: PWM

ADuC834
SPECIFICATIONS
Parameter
INTERNAL REFERENCE
ANALOG INPUTS/REFERENCE INPUTS
ADC SYSTEM CALIBRATION
ANALOG (DAC) OUTPUT
TEMPERATURE SENSOR
ADC Reference
DAC Reference
Primary ADC
Auxiliary ADC
External Reference Inputs
Full-Scale Calibration Limit
Zero-Scale Calibration Limit
Input Span
Voltage Range
Resistive Load
Capacitive Load
Output Impedance
I
Accuracy
Thermal Impedance (
SINK
Reference Voltage
Power Supply Rejection
Reference Tempco
Reference Voltage
Power Supply Rejection
Reference Tempco
Differential Input Voltage Ranges
Analog Input Current
Analog Input Current Drift
Absolute AIN Voltage Limits
Input Voltage Range
Average Analog Input Current
Average Analog Input Current Drift
Absolute AIN Voltage Limits
REFIN(+) to REFIN(–) Range
Average Reference Input Current
Average Reference Input Current Drift
‘NO Ext. REF’ Trigger Voltage
Bipolar Mode (ADC0CON3 = 0)
9, 10
JA
(continued)
2
)
2
2, 11
2
9, 10
2
ADuC834
1.25 ± 1%
45
100
2.5 ± 1%
50
± 100
± 20
± 40
± 80
± 160
± 320
± 640
± 1.28
± 2.56
± 1
± 5
± 5
± 15
AGND + 100 mV
AV
0 to V
125
± 2
AGND – 30 mV
AV
1
AV
1
± 0.1
0.3
0.65
+1.05
–1.05
0.8
2.1
0 to V
0 to AV
10
100
0.5
50
± 2
90
52
DD
DD
DD
REF
REF
FS
FS
– 100 mV
+ 30 mV
DD
FS
FS
–4–
Test Conditions/Comments
Initial Tolerance @ 25°C, V
Initial Tolerance @ 25°C, V
External Reference Voltage = 2.5 V
RN2, RN1, RN0 of ADC0CON Set to
0 0 0 (Unipolar Mode 0 mV to 20 mV)
0 0 1 (Unipolar Mode 0 mV to 40 mV)
0 1 0 (Unipolar Mode 0 mV to 80 mV)
0 1 1 (Unipolar Mode 0 mV to 160 mV)
1 0 0 (Unipolar Mode 0 mV to 320 mV)
1 0 1 (Unipolar Mode 0 mV to 640 mV)
1 1 0 (Unipolar Mode 0 V to 1.28 V)
1 1 1 (Unipolar Mode 0 V to 2.56 V)
T
T
T
T
Unipolar Mode, for Bipolar Mode
See Note 11
Input Current Will Vary with Input
Voltage on the Unbuffered Auxiliary ADC pA/V/°C typ
Both ADCs Enabled
NOXREF Bit Active if V
NOXREF Bit Inactive if V
DACRN = 0 in DACCON SFR
DACRN = 1 in DACCON SFR
From DAC Output to AGND
From DAC Output to AGND
MQFP Package
CSP Package (Base Floating)
MAX
MAX
MAX
MAX
= 85°C
= 125°C
= 85°C
= 125°C
REF
REF
DD
DD
< 0.3 V
12
> 0.65 V
= 5 V
= 5 V
Unit
V min/max
dBs typ
ppm/°C typ
V min/max
dBs typ
ppm/°C typ
mV
mV
mV
mV
mV
mV
V
V
nA max
nA max
pA/°C typ
pA/°C typ
V min
V max
V
nA/V typ
V min
V max
V min
V max
nA/V/°C typ
V min
V max
V max
V min
V min
V max
V typ
V typ
kΩ typ
pF typ
Ω typ
°C typ
°C/W typ
°C/W typ
A/V typ
A typ
REV. A