Micropower Voltage Reference
CA1004
FEATURES
Very Tight Initial Voltage Tolerance
1004-1.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5mV
1004-2.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10mV
Very Low Operating Current
1004-1.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
A
1004-2.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
A
Wide Operating Current Range . . . . . . . . 10
A to 20mA
Very Low Dynamic Impedence. . . . . . . . . . . . . 0.6 Max.
PRODUCT DESCRIPTION
The CA1004 is a two-terminal, temperature compensated,
micropower band-gap voltage reference, which provides a
fixed voltage for a wide range of input currents (10
A to
20mA). The high stability of the device is primarily the result
of the low temperature coefficient Thin Film Resistor process
and the tight output voltage tolerance is obtained by resistor
Laser trimming at the wafer level. This gives the benefit of
eliminating the need of external voltage adjustment.
ORDERING INFORMATION
Part
Package
Max Tempco
Temp Range
(ppm/
o
C)
CA1004N1 (1.2)
TO-92
100
0
o
C to +70
o
C
CA1004BY1 (1.2)
SOIC
100
-40
o
C to +85
o
C
CA1004N2 (2.5)
TO-92
100
0
o
C to +70
o
C
CA1004BY2 (2.5)
SOIC
100
-40
o
C to +85
o
C
PIN CONFIGURATIONS
CORPORATION
TO-92
TO-92 (N-SUFFIX)
BOTTOM VIEW
1
2
3
SO-8
8
7
6
5
1
2
3
4
NC
NC
NC
+
NC
NC
-
NC
SO PACKAGE
(Y-SUFFIX)
BOTTOM VIEW
CA1004
CORPORATION
ABSOLUTE MAXIMUM RATINGS
Forward Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA
Reverse Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30mA
Operating Temperature Range
TO-92 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
o
C to +70
o
C
SOIC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
o
C to +85
o
C
Storage Temperature Range
TO-92 . . . . . . . . . . . . . . . . . . . . . . . . . . -65
o
C to +150
o
C
SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . -65
o
C to +150
o
C
Lead Temperature (10 sec.). . . . . . . . . . . . . . . . . . . . . +300
o
C
SPECIFICATIONS: At I
in
= 100
A and T
A
= +25
o
C unless otherwise specified.
PARAMETERS
CA1004
UNITS
CONDITIONS
MIN
TYP
MAX
Output Voltage
1.235
2.480
1.25
2.500
1.265
2.520
V
1004-1, 2
1004-2, 5
Min Operating Current
10
20
A
1004-1, 2
1004-2, 5
Output Voltage Change With Current
2.0
20
mV
10
A
I
in
1mA
1mA
I
in
20mA
Temperature Coefficient
100
ppm/
o
C
Dynamic Impedence
1.0
Wide Band Noise
60
V
10Hz f 10KHz
Long Term Stability
20
ppm/KHr
T
A
= 25
o
C
.1
o
C
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