ALD500RAU-10SEL Advanced Linear Devices Inc, ALD500RAU-10SEL Datasheet - Page 5

• Manufacturer Part Number: ALD500RAU-10SEL
• Description: IC ADC 18BIT 20SOIC
• Manufacturer: Advanced Linear Devices Inc

Specifications of ALD500RAU-10SEL

• Number Of Bits: 18
• Power Dissipation (max): 10mW
• Voltage Supply Source: Dual ±
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ALD500RAU/ALD500RA/ALD500R
DC & AC ELECTRICAL CHARACTERISTICS
T
Parameter
Supply Current
Power Dissipation
Positive Supply Range
Negative Supply Range
Comparator Logic 1,
Output High
Comparator Logic 0,
Output Low
Logic 1, Input High
Voltage
Logic 0, Input Low
Voltage
Logic Input Current
Comparator Delay
A
= 25 C V supply = 5.0V unless otherwise specified; C
Negative Input Signal
Positive Input Signal
1.8432 MHz Clock
START
CONVERSION
CYCLE
A INPUT
B INPUT
C
C
OUT
OUT
Symbol
START INTEGRATION CYCLE
I
P
V
V
V
V
V
V
I
t
S
L
D
D
+S
-S
OH
OL
IH
IL
123,093
Clock Pulses
or fixed logic controller,
of counters within the
the microcontroller
or clock data out
Clock data in
66.667 msec.
Auto Zero
as needed.
NOT VALID
Min
NOT VALID
-4.5
Phase
4.5
3.5
4
500RAU
0.5416 s
Typ
0.01
START DEINTEGRATION CYCLE
0.6
Figure 3. ALD500R TIMING DIAGRAM
1
Max
-5.5
1.0
5.5
0.4
10
1
123,093
Clock Pulses
Advanced Linear Devices
Input Signal
of clock pulses
Integration
Fixed number
66.667 msec.
by design.
Min
-4.5
Phase
1 Conversion Cycle
4.5
3.5
4
500RA
Typ
0.01
0.6
AZ
1
Deintegration
At V
max. number of
clock pulses
= 246,185
~
Reference
clock pulses.
Max
= C
-5.5
Voltage
number of
Phase
1.0
5.5
0.4
Variable
10
IN
1
MAX,
REF
Min
-4.5
= 0.47 f
4.5
3.5
4
START INTEGRATOR ZERO CYCLE
Typ
500R
Integrator Zero
Stop counter upon
detection of comparator
output going from high
to low state.
0.01
0.6
approx.1 msec.
Fixed period of
1
Phase
Max
-5.5
1.0
5.5
0.4
10
1
Unit
mA
mW
V
V
V
V
V
V
A
sec
Auto Zero
Phase
REPEAT
CONVERSION
CYCLE
V
V supply= 5V
Note 4
Note 4
I
I
Note 5
Test Conditions
SOURCE
SINK
+
= 5V , A =1,B=1
= 1.1mA
= 400 A
5