ZETEX ZXRE125FFTA

ZXRE125
SOT23 MICROPOWER 1.22V VOLTAGE REFERENCE
SUMMARY
DESCRIPTION
The ZXRE125 is a bandgap circuit designed to achieve a precision micropower
voltage reference of 1.22 volts. The device is available in the small outline SOT23
surface mount package which is ideal for applications where space saving is
important.
SOT23
SOT23 tolerance is available to 0.5% for precision applications. Excellent
performance is maintained over the 8␮A 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.
This device offers a SOT23 pin for pin compatible replacement of the ZRA124
and ZRA125 series of voltage references. An E-Line (TO92 style) package is also
available.
FEATURES
•
•
•
•
•
•
High performance 1.220V reference
E-line
0.5%, 1%, 2% and 3% tolerance
4␮A knee current
20ppm/°C typical temperature coefficient
SOT23
E-line
Package Suffix - F
Package Suffix - R
Top view -
Bottom view -
Pin 1 floating or
connected to pin 2
Pin 3 floating or
connected to pin 1
Unconditionally stable
Small outline SOT23
APPLICATIONS
•
•
•
•
Battery powered equipment
Precision power supplies
Portable instrumentation
Portable communications devices
• Data acquisition systems
ORDERING INFORMATION
DEVICE
TOL%
GRADE
PACKAGE
PARTMARKING
REEL
QUANTITY PER REEL
ZXRE125CFTA
0.5
C
SOT23
12J
7”
3,000
ZXRE125DFTA
1
D
SOT23
12H
7”
3,000
ZXRE125EFTA
2
E
SOT23
12G
7”
3,000
ZXRE125FFTA
3
F
SOT23
12F
7”
3,000
ZXRE125DRSTOA
1
E-line
ZXRE125D
-
2,000
ZXRE125ERSTOA
2
E-line
ZXRE125E
-
2,000
ZXRE125FRSTOA
3
E-line
ZXRE125F
-
2,000
NOTE:
E-line parts available loose in boxes of 2,000 units, omit “STOA” from order code i.e. ZXRE125DR
ISSUE 7 - OCTOBER 2003
1
SEMICONDUCTORS
ZXRE125
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Reverse current
VZ
Forward current
LIMIT
UNIT
30
mA
10
mA
Operating temperature
T OMP
-40 to 85
°C
Storage temperature
T STG
-55 to 125
°C
POWER DISSIPATION (at Tamb = 25°C, Tjmax = 25°C)
PACKAGE
VALUE
UNIT
SOT23
330
mW
E-line
500
mW
ISSUE 7 - OCTOBER 2003
SEMICONDUCTORS
2
ZXRE125
SCHEMATIC DIAGRAM
APPLICATIONS CIRCUIT
ISSUE 7 - OCTOBER 2003
3
SEMICONDUCTORS
ZXRE125
ELECTRICAL CHARACTERISTICS (at Tamb = 25°C unless otherwise stated)
PARAMETER
SYMBOL CONDITIONS
Reverse Breakdown Voltage V R
I R = 100␮A
Minimum Knee Current
I MIN
Recommended Operating
Current Range
IR
Average Reverse
Breakdown Voltage
Temperature Coefficient
T C (2)
MIN.
TYP.
MAX.
1.214
1.220
1.226
C/0.5(1)
V
1.208
1.220
1.232
D/1
V
1.196
1.220
1.244
E/2
V
1.183
1.220
1.257
F/3
V
4
8
␮A
20
mA
75
ppm/°C
mV
0.008
I R(min) to I R(max)
20
GRADE/ UNITS
TOL%
Reverse Breakdown Change ∆VR
with Current Voltage
∆I R
I R = 30␮A to 1 mA
1
I R = 1mA to 5mA
10
mV
Reverse Dynamic
Impedance
I R = 1mA
0.6
⍀
Wideband Noise Voltage
ZR
0.2
f = 100Hz
EN
I AC = 0.1I R
IR = 8␮A to 100␮A
␮V(rms)
60
f = 10Hz to 10kHz
NOTE:
(1) 0.5% SOT23 only
(V
− VR (min) ) x1000000
(2) T C = R (max)
VR x(T (max) − T (min) )
VR(max) - VR(min) is the maximum deviation in reference voltage measured over the full operating
temperature range
REVERSE CHARACTERISTICS
ISSUE 7 - OCTOBER 2003
SEMICONDUCTORS
4
ZXRE125
TYPICAL CHARACTERISTICS
ISSUE 7 - OCTOBER 2003
5
SEMICONDUCTORS
ZXRE125
SOT23 PACKAGE OUTLINE AND PAD LAYOUT DETAILS
PACKAGE OUTLINE
PAD LAYOUT
Controlling dimensions are in millimetres. Approximate conversions are given in inches
PACKAGE DIMENSIONS
Millimetres
Inches
DIM
Millimetres
Inches
DIM
Min
Max
Min
Max
Min
A
2.67
3.05
0.105
0.120
G
B
1.20
1.40
0.047
0.055
K
0.01
0.10
0.0004
0.004
2.10
2.50
0.083
0.0985
C
–
1.10
–
0.043
L
D
0.37
0.53
0.0145
0.021
N
F
0.085
0.15
0.0033
0.0059
Max
NOM 1.9
NOM 0.95
Min
Max
NOM 0.037
NOM 0.037
ISSUE 7 - OCTOBER 2003
SEMICONDUCTORS
6
ZXRE125
E-LINE PACKAGE OUTLINE
PACKAGE OUTLINE
Controlling dimensions are in millimetres. Approximate conversions are given in inches
PACKAGE DIMENSIONS
DIM
Millimetres
Inches
Min
Max
Min
Max
A
0.41
0.495
0.016
0.0195
B
0.41
0.495
0.016
0.0195
C
3.61
4.01
0.142
0.158
D
4.37
4.77
0.172
0.188
E
2.16
2.41
0.085
0.095
F
—
2.50
—
0.098
G
L
1.27 NOM
13.00
0.050 NOM
13.97
0.512
0.550
© Zetex plc 2003
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[email protected]
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[email protected]
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Oldham, OL9 8NP
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Telephone (44) 161 622 4444
Fax: (44) 161 622 4446
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This publication is issued to provide outline information only which (unless agreed by the Company in writing) may not be used, applied or reproduced
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reserves the right to alter without notice the specification, design, price or conditions of supply of any product or service.
For the latest product information, log on to
www.zetex.com
ISSUE 7 - OCTOBER 2003
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SEMICONDUCTORS