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ZXRE125FR

P1-P3P4-P4
FEATURES
• High performance replacement for ZRA124 and
ZRA125 references
• Small outline SOT23
• SO8 and E-Line alternatives available
• 30µA 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
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
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 tolerance is available to 0.5% for precision
applications. Excellent performance is maintained
over the 30µA to 5mA 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. SO8 and E-Line (TO92 style)
packages can also be made available.
V
R
G
nd
SOT23 MICROPOWER 1.22V VOLTAGE REFERENCE
1
1.5V
4k7
1.22V
SCHEMATIC DIAGRAM APPLICATIONS CIRCUIT
Low quiescent reference from a 1.5V battery source.
ZXRE125
ISSUE 4 - JANUARY 2002
ABSOLUTE MAXIMUM RATINGS
Reverse Current 30mA
Forward Current 10mA
Operating temperature. -40 to 85°C
Storage temperature. -55 to 125°C
Power Dissipation (T
amb
=25°C)
SOT23 330mW
SO8 625mW
E-Line 500mW
2
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (Unless otherwise stated) T
amb
=25°C
SYMBOL PARAMETER CONDITIONS LIMITS TOL. % UNITS
MIN TYP MAX
V
R
Reverse Breakdown Voltage
I
R
=100µA
1.214
1.208
1.196
1.183
1.22
1.22
1.22
1.22
1.226
1.232
1.244
1.257
0.5 ‡
1
2
3
V
I
MIN
Minimum Knee Current 30
µA
I
R
Recommended Operating
Current Range
0.03 5 mA
T
C
† Average Reverse Breakdown
Voltage Temperature
Coefficient
I
R(min)
to
I
R(max)
20 90 ppm/°C
∆V
R
∆I
R
Reverse Breakdown Voltage
change with Current
I
R
=30µA to 1mA
I
R
=1mA to 5mA
1
10
mV
mV
Z
R
Reverse Dynamic Impedance I
R
=1mA
f =100Hz
I
AC
=0.1 I
R
0.2 0.6
Ω
E
N
Wideband Noise Voltage
I
R
=8µA to
100µA
f=10Hz to 10kHz
60
µV(rms)
† T
C
=
(V
R
(max
)
−V
R
(
min
)
) x 1000000
V
R
x (T
(max
)
−T
(min
)
)
Note: V
R(max)
- V
R(min)
is the
maximum deviation in reference
voltage measured over the full
operating temperature range.
‡ Note: 0.5% SOT23 only.
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
Reverse Voltage (V)
Reverse Characteristics
0
1
2
3
4
5
Reverse Current (mA)
TA=-40c TO +85C
ZXRE125
ISSUE 4 - JANUARY 2002
3
TYPICAL CHARACTERISTICS
-40 -20 0 20 40 60 80
Temperature (°C)
Temperature Drift
1.19
1.20
1.21
1.22
1.23
1.24
1.25
Reference Voltage (V)
0.01 0.1 1 10 100
Frequency (kHz)
Slope Resistance v Frequency
0.1
1
10
100
Slope Resistance (
Ω
)
20mA
1mA
100µA
0 40 80 120 140
Time (µs)
Transient Response
0
0.5
1.5
1.0
10
0
I
in
(
µ
A)
V
R (V)
10µA
20mA
0 102030405060708090100
Reference Current (µA)
Noise Voltage
0
10
20
30
40
50
60
70
80
Wideband Noise (
µ
V)
1001010.10.010.001
Reference Current (mA)
Slope Resistance v Current
0
2
4
6
8
10
12
14
Slope Resistance (
Ω
)
25°C
-40°C
0.1 1 10 100 1000
Forward Current (mA)
Forward Characteristics
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
Forward Voltage (V)
85°C
僓
僓
ZXRE125
ISSUE 4 - JANUARY 2002
P1-P3P4-P4

ZXRE125FR

Mfr. #:
Buy ZXRE125FR
Manufacturer:
Diodes Incorporated
Description:
Voltage References 3% 1.22V
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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