Micropower Voltage Reference
CORPORATION
CA1004
FEATURES
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 (10µA 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
CA1004N1 (1.2)
CA1004BY1 (1.2)
CA1004N2 (2.5)
CA1004BY2 (2.5)
Package
TO-92
SOIC
TO-92
SOIC
Max Tempco
(ppm/
o
C)
100
100
100
100
Temp Range
0
o
C to +70
o
C
-40
o
C to +85
o
C
0
o
C to +70
o
C
-40
o
C to +85
o
C
•
Very Tight Initial Voltage Tolerance
•
•
•
1004-1.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±5mV
1004-2.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±10mV
Very Low Operating Current
1004-1.2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10µA
1004-2.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20µA
Wide Operating Current Range . . . . . . . . 10µA to 20mA
Very Low Dynamic Impedence. . . . . . . . . . . . . 0.6 Max.
PIN CONFIGURATIONS
SO-8
TO-92
+
8
NC
7
NC
6
NC
5
3
2
1
1
NC
2
NC
3
NC
-
4
TO-92 (N-SUFFIX)
BOTTOM VIEW
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
= 100µA and T
A
= +25
o
C unless otherwise specified.
PARAMETERS
MIN
Output Voltage
Min Operating Current
Output Voltage Change With Current
Temperature Coefficient
Dynamic Impedence
Wide Band Noise
Long Term Stability
60
20
1.235
2.480
CA1004
TYP
1.25
2.500
MAX
1.265
2.520
10
20
2.0
20
100
1.0
V
µA
mV
ppm/
o
C
Ω
µV
ppm/KHr
10Hz f 10KHz
T
A
= 25
o
C
±.1
o
C
1004-1, 2
1004-2, 5
1004-1, 2
1004-2, 5
10µA
≤
I
in
≤
1mA
1mA
≤
I
in
≤
20mA
UNITS
CONDITIONS
DSP 与 ARM 处理器
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