Zetex ZR404005F25, ZR404005N825, ZR40401N825, ZR40401R25, ZR404005R25 Datasheet
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PRECISION 2.5 VOLT MICROPOWER
VOLTAGE REFERENCE
ISSUE 3 - MARCH 1998
ZR4040-2.5
DEVICE DESCRIPTION
The ZR4040-2.5 uses a bandgap circuit
design to achieve a precision micropower
voltage reference of 2.5 volts. The device is
available in small outline surface mount
packages, ideal for applications where space
saving is important, as well as packages for
through hole requirements.
The ZR4040-2.5 design provides a stable
voltage without an external capacitor and is
stable with capacitive loads. The ZR4040-2.5
is recommended for operation between
60µA and 15mA and so is ideally suited to
low power and battery powered
applications.
Excellent performance is maintained to an
absolute maximum of 25mA, however the
rugged design and 20 volt processing allows
the reference to withstand transient effects
and currents up to 200mA. Superior
switching capability allows the device to
reach stable operating conditions in only a
few microseconds.
SCHEMETIC DIAGRAM
FEATURES
Small outline SO8 and SOT23 packages
•
TO92 style package
•
No stabilising capacitor required
•
Typical TC 30ppm/°C
•
Typical slope resistance 0.4Ω
•
2% 1% and 0.5 % tolerance
•
Industrial temperature range
•
Operating current 60µA to 15mA
•
Transient response, stable in less than
•
10µs
APPLICATIONS
Battery powered and portable
•
equipment.
Metering and measurement systems.
•
Instrumentation.
•
Test equipment.
•
Data acquisition systems.
•
Precision power supplies.
•
V
R
G
nd
4-173
ZR4040-2.5
ABSOLUTE MAXIMUM RATING
Reverse Current 25mA
Forward Current 25mA
Operating Temperature -40 to 85°C
Storage Temperature -55 to 125°C
Power Dissipation (T
SOT23 330mW
SO8 625mW
E-Line, 3 pin (TO92) 500mW
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (Unless otherwise stated) T
SYMBOL PARAMETER
V
I
I
R
MIN
R
Reverse Breakdown Voltage
Minimum Operating Current 25 60
Recommended Operating
Current
T
† Average Reverse
C
Breakdown Voltage Temp.
Co.
R
§ Slope Resistance 0.4 2
S
Z
R
E
N
Reverse Dynamic Impedance IR =1mA
Wideband Noise Voltage IR= 1mA
CONDITIONS LIMITS TOL.
=150µA
I
R
I
to
R(min)
I
R(max)
f = 100Hz
I
=0.1 I
AC
R
f = 10Hz to
10kHz
=25°C
amb
MIN TYP MAX
2.4875
2.475
2.45
0.06 15 mA
=25°C)
amb
UNITS
%
2.5
2.5
2.5
2.5125
2.525
2.55
0.5
1
2
V
µA
30 100 ppm/°C
Ω
0.3 0.8
45
Ω
µV
(rms)
(
V
−
V
†
T
Note: V
=
C
R(max)
R(max
V
- V
)
x (
R
R(min)
) x 1000000
R(min
)
T
−
T
(
max
)
)
(
min
)
is the maximum
deviation in reference voltage measured
over the full operating temperature
range.
V
Change
(
I
(
§
min) to I
R
R
=
S
R
I
(
max
) −
R
(
max
R
I
(
min
)
R
60
)
50
A
µ
(
t
40
urren
30
e C
))
evers
R
20
10
0
0.2 0.6
1.0 1.8 2.61.4 2.2
°C
=85
A
T
°C
=25
A
T
-40°C
=
A
T
Reverse Voltage (V)
Reverse Characteristics
4-174
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