A Product Line of
Diodes Incorporated
ZXRE1004
SOT23 MICROPOWER (4µA) 1.22V VOLTAGE REFERENCE
Description
The ZXRE1004 is a 1.22 volt bandgap reference circuit
designed for ultra low current operation, typically 4μA. The
device is available in a SOT23 surface mount package
offering the ultimate in space and power saving. These
features make the ZXRE1004 particularly suitable for
portable and battery powered applications.
SOT23 tolerance selection is available to 0.5% for precision
applications. Excellent performance is maintained over the
8μA to 20mA 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.
As well as the SOT23, the ZXRE1004 can offer a pin for pin
compatible alternative to the REF1004, LT1004 and
LM185/385 series of voltage references with an E-Line
(TO92 style) equivalent.
Pin Assignments
SOT23 Package Suffix - F
(Top View)
Pin 1 floating or connected to pin 2
E-Line, 3 pin, Rev Package Suffix – R
Features
•
•
•
•
•
•
•
•
High performance alternative to REF1004, LT1004 and
LM185/385 references
4μA typical knee current
Small outline SOT23 package
20ppm/°C typical temperature coefficient
Unconditionally stable
1% tolerance
Contact Diodes marketing for availability of tighter
tolerance devices
“Green molding compound
OBSOLETE
(Bottom View)
Pin 3 floating or connected to pin 1
Applications
•
•
•
•
•
•
•
•
Battery powered equipment
Precision power supplies
Portable instrumentation
Portable communications devices
Notebook and palmtop computers
Data acquisition systems
A/D and D/A converters
Test equipment
Schematic Diagram
Applications Circuit
ZXRE1004
Document number: DS32172 Rev. 4 - 2
1 of 5
www.diodes.com
June 2010
© Diodes Incorporated
A Product Line of
Diodes Incorporated
ZXRE1004
Absolute Maximum Ratings
(Voltages to GND Unless Otherwise Stated)
Parameter
Reverse Current
Forward Current
Operating Temperature
Storage Temperature
Power Dissipation (T
AMB
= 25°C)
SOT23
Rating
30
10
-40 to 85
-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 knee current
Recommended operating current
range
Average reverse breakdown voltage
temperature coefficient
Reverse breakdown voltage change
with current
Reverse dynamic impedance
Wideband noise voltage
(V
R(MAX)
– V
R(MIN)
) x 1000000
V
R
x (T
(MAX)
– T
(MIN)
)
Condition
I
R
= 100µA
Min.
1.208
1.183
0.008
Typ.
1.22
1.22
4
Max.
1.232
1.257
8
20
Tol.
(%)
1
3
Unit
V
µA
mA
ppm/°C
mV
Ω
µV(rms)
I
R(MIN)
to I
R(MAX)
I
R
=8µA to 1mA
I
R
=1mA to 20mA
I
R
= 1mA
f = 100Hz
I
AC
= 0.1I
R
I
R
=8µA to 100µA
f=10Hz to 10kHz
20
75
1
10
ΔV
R
ΔI
R
Z
R
E
N
Notes:
(*)
0.2
60
0.6
T
C
=
Note: V
R(MAX)
- V
R
(MIN)
is the maximum deviation in reference
voltage measured over the full operating temperature range.
(†)
0.5% SOT23 only
.
ZXRE1004
Document number: DS32172 Rev. 4 - 2
2 of 5
www.diodes.com
June 2010
© Diodes Incorporated
A Product Line of
Diodes Incorporated
ZXRE1004
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall
assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes
Incorporated website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales
channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify
and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of,
directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and
markings noted herein may also be covered by one or more United States, international or foreign trademarks.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the
express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the
labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause
the failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems,
and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products
and any use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-
related information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and
its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or
systems.
Copyright © 2010, Diodes Incorporated
www.diodes.com
ZXRE1004
Document number: DS32172 Rev. 4 - 2
5 of 5
www.diodes.com
June 2010
© Diodes Incorporated
Microcontroller MCU
京公网安备 11010802033920号
EEWORLD
