ADUC844 Analog Devices, ADUC844 Datasheet - Page 4

• Manufacturer Part Number: ADUC844
• Description: MicroConverter/ Dual 16-Bit/24-Bit ADCs with Embedded 62kB FLASH MCU
• Manufacturer: Analog Devices

ADuC844 SPECIFICATIONS
PARAMETER
INT REFERENCE
TEMPERATURE SENSOR
TRANSDUCER BURNOUT CURRENT SOURCES
EXCITATION CURRENT SOURCES
POWER SUPPLY MONITOR (PSM)
CRYSTAL OSCILLATOR (XTAL 1AND XTAL2)
ADC Reference
DAC Reference
Accuracy
Thermal Impedance
AIN+ Current
AIN- Current
Initial Tolerance at 25°C
Drift
Output Current
Drift
Initial Current Matching at 25°C
Drift Matching
Line Regulation (AV
Load Regulation
Output Compliance
AV
AV
AV
DV
DV
DV
Logic Inputs, XTAL1 Only
XTAL1 Input Capacitance
XTAL2 Output Capacitance
DD
DD
DD
DD
DD
DD
Reference Voltage
Power Supply Rejection
Reference Tempco
Reference Voltage
Power Supply Rejection
Reference Tempco
Initial Tolerance at 25°C
V
V
INL
INH
Trip Point Selection Range
Trip Point Accuracy
Trip Point Accuracy
Trip Point Selection Range
Trip Point Accuracy
Trip Point Accuracy
, Input Low Voltage
, Input Low Voltage
DD
)
2
PRELIMINARY TECHNICAL DATA
A
1.237
2.475
MIN
GND
2.63
2.63
3.5
2.5
± 100
TYP
1.25
+/- 10
100
+/-10
2.5
+/- 2
-100
0.03
-200
45
50
+/-1
18
18
100
200
90
52
20
1
1
AV
DD
1.2625
+/- 3.0
+/- 3.0
+/- 3.0
+/- 3.0
MAX
1.525
4.63
4.63
-4-
0.1
0.8
0.4
-0.6
ppm/°C
ppm/°C
ppm/°C
ppm/°C
UNITS
°C/W
°C/W
%/°C
dBs
dBs
nA
nA
A/V
°C
pF
pF
%
%
%
%
V
V
%
%
%
V
V
V
V
V
V
V
V
A
Four Trip Points selectable in this range
T
T
Four Trip Points selectable in this range
T
T
DV
DV
DV
DV
CONDITION
initial tolerance @ 25°C, VDD=5V
initial tolerance @ 25°C, VDD=5V
MQFP Package
CSP Package
AIN+ is the selected positive input to the
primary ADC
AIN- is the selected negative input to the primary
ADC
Available from each Current Source
Matching between both Current Sources
AV
MAX
MAX
MAX
MAX
DD
DD
DD
DD
DD
= 85°C
= 125°C
= 85°C
= 125°C
=5V +/- 5%
= 5V
= 3V
= 5V
= 3V
REV. PrB