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Details, datasheet, quote on part number:ZXRE4041DF
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Datasheet text preview:
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 p r e ci s i o n applications. Excellent performance is maintained over the 30A 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
VR
APPLICATIONS CIRCUIT
G nd
Low quiescent reference from a 1.5V battery source.
ISSUE 2 - JULY 1999 1
ZXRE4041
ABSOLUTE MAXIMUM RATINGS
Reverse Current Forward Current Operating temperature. Storage temperature. 30mA 10mA -40 to 85°C -55 to 125°C Power Dissipation (Tamb=25°C) SOT23 330mW SO8 625mW E-Line 500mW
ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated) Tamb=25°C
SYMBOL PARAMETER CONDITIONS LIMITS MIN TYP 1 .22 5 1 .22 5 1 .22 5 1 .22 5 MAX 1.2 26 1.2 32 1.2 44 1.2 57 30 0 .03 I R ( m i n ) to I R ( m a x ) 20 12 75 C D E F V GRADE UNITS
IR TC
R e c o m m e n d e d Operating C u r r e n t Range A v e r a g e Reverse Breakdown V o l t a g e Temperature Co e f f i c i e n t R e v e r s e Breakdown Voltage c h a n g e with Current Re ve rse Dynamic Impedance
mA ppm/°C
IR
5
Note: V R ( m a x ) - V R ( m i n ) is the maximum d e v i a t i o n in reference voltage m e a s u r e d over the full operating t e m p e r a t u r e range. Note: C grade SOT23 only.
Reverse Current (mA)
TC
VR x T m a x T m i n
ma x
min
VR
VR
x 1000000
4 3
TA=-40c TO +85C
2 1 0 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
EN
W i d e b a n d Noise Voltage
IR=8 A to 100A f=10Hz to 10kHz
60
ZR
I R =1mA f =100Hz IA C=0.1 IR
VR
IR=30 A to 1mA IR=1mA to 12mA 0.2
1 10 0.6
mV mV
I MI N
M i n i m u m Knee Current
VR
R e v e r s e Breakdown Voltage
IR=1 00 A
1 .21 4 1 .20 8 1 .19 6 1 .18 3
A
V(rms)
XRE4041
TYPICAL CHARACTERISTICS
1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.1 1 10 100 1000
1.25 1.24
Reference Voltage (V)
Forward Voltage (V)
1.23 1.22 1.21 1.20 1.19 -4 0
-20
0
20
40
60
80
Forward Current (mA)
Temperature (°C)
Forward Characteristics
Temperature Drift
14 12
100
Slope Resistance ( )
10 8 6 4 2 0 0.001
-40°C 25°C 85°C
Slope Resistance ( )
10
1
20mA 1mA 100 A
0.01
0.1
1
10
100
0.1 0.01
0.1
1
Reference Current (mA)
Frequency (kHz)
Slope Resistance v Current
1.5 1.0 0.5
10 A 20mA
Slope Resistance v Frequency
80 70
Wideband Noise ( V)
VR (V)
60 50 40 30 20 10 0 0 10 20 30 40 50 60 70 80 90 100
0
ISSUE 2 - JULY 1999 3
Iin ( A)
10 0 0 40 80 120 140
Time (s)
Reference Current (A)
Transient Response
Noise Voltage
10
100
Z
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