Zetex ZXRE4041FF, ZXRE4041FN8, ZXRE4041FR, ZXRE4041DN8, ZXRE4041DR Datasheet
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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
FEATURES
High performance alternative to LM4041
Small outline SOT23
SO8 and E-Line alternatives available
30 A knee current
20ppm/°C typical temperature coefficient
Unconditionally stable
0.5%, 1%, 2% and 3% tolerance
Contact Zetex marketing for availability of tighter tolerance devices
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. SO8 and E-Line (TO92 style) packages can also be made available.
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 |
VR
Gnd Low quiescent reference from a 1.5V battery source.
ISSUE 2 - JULY 1999
1
ZXRE4041
ABSOLUTE MAXIMUM RATINGS
Reverse Current |
30mA |
Power Dissipation (Tamb=25°C) |
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SOT23 |
330mW |
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Forward Current |
10mA |
SO8 |
625mW |
Operating temperature. |
-40 to 85°C |
E-Line |
500mW |
Storage temperature. |
-55 to 125°C |
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ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (Unless otherwise stated) Tamb=25°C
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SYMBOL |
PARAMETER |
CONDITIONS |
LIMITS |
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GRADE |
UNITS |
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MIN |
TYP |
MAX |
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VR |
Reverse Breakdown Voltage |
IR=100 A |
1.214 |
1.225 |
1.226 |
C ‡ |
V |
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1.208 |
1.225 |
1.232 |
D |
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1.196 |
1.225 |
1.244 |
E |
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1.183 |
1.225 |
1.257 |
F |
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IMIN |
Minimum Knee Current |
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30 |
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A |
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IR |
Recommended Operating |
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0.03 |
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12 |
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mA |
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Current Range |
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TC † |
Average Reverse Breakdown |
IR(min) to IR(max) |
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20 |
75 |
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ppm/°C |
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Voltage Temperature |
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Coefficient |
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VR |
Reverse Breakdown Voltage |
IR=30 A to 1mA |
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1 |
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mV |
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change with Current |
IR=1mA to 12mA |
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10 |
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mV |
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IR |
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ZR |
Reverse Dynamic Impedance |
IR =1mA |
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0.2 |
0.6 |
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f =100Hz |
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IAC=0.1 IR |
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EN |
Wideband Noise Voltage |
IR=8 A to 100 A |
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60 |
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V(rms) |
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f=10Hz to 10kHz |
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VR max VR min x 1000000
† TC VR x T max T min
Note: VR(max) - V R(min) is the maximum deviation in reference voltage
measured over the full operating temperature range.
‡ Note: C grade SOT23 only.
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5 |
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(mA) |
4 |
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3 |
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Current |
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TA=-40c TO +85C |
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2 |
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Reverse |
1 |
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0 |
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0 |
0.2 |
0.4 |
0.6 |
0.8 |
1.0 |
1.2 |
1.4 |
Reverse Voltage (V)
Reverse Characteristics
ISSUE 2 - JULY 1999
2
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