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ZR285F02TA

P1-P3P4-P5
ZR285
ZR285
Document number: DS32168 Rev. 8 - 2
1 of 5
www.diodes.com
May 2010
© Diodes Incorporated
A
Product Line o
f
Diodes Incorporated
PRECISION 2.5V MICROPOWER VOLTAGE REFERNCE
Description
The ZR285 uses a bandgap circuit design to achieve a
precision micropower voltage reference of 2.5 volts. The
device is available in a small outline surface mount package,
ideal for applications where space saving is important.
The ZR285 design provides a stable voltage without an
external capacitor and is stable with capacitive loads. The
ZR285 is recommended for operation between 20A and
20mA and so is ideally suited to low power and battery
powered applications.
Excellent performance is maintained to an absolute
maximum of 30mA, 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.
Pin Assignment
(Top View)
Pin 1 floating or connected to pin 2
Typical Application Circuit
Features
• Small outline SOT23 style package
• No stabilizing capacitor required
• Low knee current, 15A typical
• Typical T
C
30ppm/°C
• Typical slope resistance 0.4
• ± 2% tolerance
• Industrial temperature range
• Operating current 20μA to 20mA
Applications
• Battery powered and portable equipment
• Metering and measurement systems
• Instrumentation
• Test equipment
• Data acquisition systems
• Precision power supplies
ZR285
ZR285
Document number: DS32168 Rev. 8 - 2
2 of 5
www.diodes.com
May 2010
© Diodes Incorporated
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Product Line o
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Diodes Incorporated
Absolute Maximum Ratings (Voltages to GND Unless Otherwise Stated)
Paramete
r
Rating Unit
Reverse Current 30 mA
Forward Current 25 mA
Operating Temperature -40 to 85 °C
Storage Temperature -55 to 150 °C
Power Dissipation (T
AMB
= 25°C)
SOT23
330 mW
Electrical Characteristics (Test conditions: T
amb
= 25°C, unless otherwise specified.)
Symbol Parameter Condition Min. Typ. Max. Tol. (%) Unit
V
R
Reverse breakdown voltage
I
R
= 150µA
2.45 2.5 2.55 2 V
I
MIN
Minimum operating current 13 20
µA
I
R
Recommended operating current 0.02 20
mA
T
C
(*)
Average reverse breakdown voltage
temperature coefficient
I
R
= 1mA to
20mA
30 90
ppm/°C
R
S
(†)
Slope resistance 0.4 1
Z
R
Reverse dynamic impedance
I
R
= 1mA
f = 100Hz
I
AC
= 0.1I
R
0.3 0.8
E
N
Wideband noise voltage
I
R
= 150µA
f = 10Hz to
10kHz
60
µV(rms)
Notes:
Note: V
R(MAX)
- V
R(MIN)
is the maximum deviation in reference
voltage measured over the full operating temperature range.
.
(*)
T
C
=
(V
R
(
MAX
)
– V
R
(
MIN
)
) x 1000000
V
R
x (T
(
MAX
)
– T
(
MIN
)
)
(†)
R
S
=
V
R
Change (
IR
(
MIN
)
to I
R
(
MAX
)
I
R
(
MAX
)
– I
R
(
MIN
)
)
ZR285
ZR285
Document number: DS32168 Rev. 8 - 2
3 of 5
www.diodes.com
May 2010
© Diodes Incorporated
A
Product Line o
f
Diodes Incorporated
Typical Characteristics
P1-P3P4-P5

ZR285F02TA

Mfr. #:
Buy ZR285F02TA
Manufacturer:
Diodes Incorporated
Description:
Voltage References 2% 2.5V Low Knee
Lifecycle:
New from this manufacturer.
Delivery:
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