A Product Line of
Diodes Incorporated
ZXRE4041
SOT23 MICROPOWER 1.225V VOLTAGE REFERENCE
Description
The ZXRE4041 is a bandgap circuit designed to achieve a
precision micropower voltage reference of 1.225 volts. The
device is available in the small outline SOT23 surface
mount package which is ideal for applications where space
saving is important.
SOT23 tolerance is available to 0.5% C grade for precision
applications. Excellent performance is maintained over the
30 A to 12mA operating current range with a typical
temperature coefficient of only 20ppm/°C. The device has
been designed to be highly tolerant of capacitive loads so
maintaining excellent stability.
This device offers a SOT23 pin for pin compatible
alternative to LM4041 voltage references.
Pin Assignments
(Top view)
Pin 1 floating or connected to pin 2
Features
•
•
•
•
•
•
•
High performance alternative to LM4041
Small outline SOT23
30μA knee current
20ppm/°C typical temperature coefficient
Unconditionally stable
0.5%, 1%, and 2% tolerance
Green molding compound (No Br, Sb)
Schematic Diagram
Applications
•
•
•
•
•
•
•
•
Battery powered equipment
Precision power supplies
Portable instrumentation
Portable communication devices
Notebook and palm top computers
Data acquisition systems
A/D and D/A converters
Test equipment
Application Circuit
ZXRE4041
Document number: DS32169 Rev. 6 - 2
1 of 5
www.diodes.com
May 2010
© Diodes Incorporated
A Product Line of
Diodes Incorporated
ZXRE4041
Absolute Maximum Ratings
(Voltages to GND Unless Otherwise Stated)
Parameter
Reverse Current
Forward Current
Operating Temperature
Storage Temperature
Power Dissipation (T
AMB
= 25°C)
Symbol
V
Z
T
OMP
T
STG
P
D
Rating
30
10
-40 to 125
-55 to 125
330
Unit
mA
mA
°C
°C
mW
Electrical Characteristics
Symbol
V
R
I
MIN
I
R
T
C
(*)
(Test conditions: Tamb = 25°C, unless otherwise specified.)
Parameter
Reverse breakdown voltage
Minimum operating current
Recommended operating current
Average reverse breakdown
voltage temperature coefficient
Reverse Breakdown Change
with Current Voltage
Condition
I
R
= 100µA
Min.
1.219
1.213
0.03
Typ.
1.225
1.225
Max.
1.231
1.237
30
12
100
1
10
Tol. (%)
C/0.5
D/1
Unit
V
µA
mA
ppm/°C
mV
I
R(min)
to I
R(max)
I
R
= 30μA to 1μA
I
R
= 1mA to 12mA
I
R
= 1mA
f = 100Hz
I
AC
= 0.1I
R
I
R
= 8µA to 100µA
f = 10Hz to 10kHz
20
R
S
(†)
Z
R
E
N
Notes:
(*)
Reverse dynamic impedance
Wideband noise voltage
(V
R(MAX)
– V
R(MIN)
) x 1000000
V
R
x (T
(MAX)
– T
(MIN)
)
0.2
60
0.6
Ω
µV(rms)
T
C
=
Note: V
R(MAX)
- V
R
(MIN)
is the maximum deviation in reference
voltage measured over the full operating temperature range.
(†)
R
S
=
ΔV
R
ΔI
R
ZXRE4041
Document number: DS32169 Rev. 6 - 2
2 of 5
www.diodes.com
May 2010
© Diodes Incorporated
A Product Line of
Diodes Incorporated
ZXRE4041
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Copyright © 2010, Diodes Incorporated
www.diodes.com
ZXRE4041
Document number: DS32169 Rev. 6 - 2
5 of 5
www.diodes.com
May 2010
© Diodes Incorporated
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