ZR285-25 ZETEX [Zetex Semiconductors], ZR285-25 Datasheet

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ZR285-25

Manufacturer Part Number
ZR285-25
Description
PRECISION 2.5 VOLT MICROPOWER VOLTAGE REFERENCE
Manufacturer
ZETEX [Zetex Semiconductors]
Datasheet
PRECISION 2.5 VOLT MICROPOWER
VOLTAGE REFERENCE
ISSUE 5 – FEBRUARY 1998
DEVICE DESCRIPTION
The ZR285 uses a bandgap circuit
de si g n t o a c h i e v e a p r e c i s i on
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 ZR285 design provides a stable
voltage without an external capacitor
and is stable with capacitive loads. The
ZR285 is recommended for operation
between 20 A 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
wi t hst an d transi ent effects and
currents up to 200mA. Superior
switching capability allows the device
to reach stable operating conditions in
only a few microseconds.
SCHEMATIC DIAGRAM
V
G
R
4-165
nd
FEATURES
APPLICATIONS
Small outline SOT23 and SO8 packages
TO92 style packages
No stabilising capacitor required
Low knee current, 15 A typical
Typical T
Typical slope resistance 0.4
Industrial temperature range
Operating current 20 A to 20mA
Battery powered and portable equipment.
Metering and measurement systems.
Instrumentation.
Test equipment.
Data acquisition systems.
Precision power supplies.
3%, 2% and 1% tolerance
C
30ppm/°C
ZR285-2.5

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ZR285-25 Summary of contents

Page 1

... PRECISION 2.5 VOLT MICROPOWER VOLTAGE REFERENCE ISSUE 5 – FEBRUARY 1998 DEVICE DESCRIPTION The ZR285 uses a bandgap circuit 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 ...

Page 2

... ZR285-2.5 ABSOLUTE MAXIMUM RATING Reverse Current Forward Current Operating Temperature Storage Temperature ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated) T SYMBOL PARAMETER V Reverse Breakdown Voltage R I Minimum Operating Current MIN I Recommended Operating R Current T † Average Reverse Breakdown C Voltage Temp. Co. R § Slope Resistance ...

Page 3

... Transient Response - Single pulse 2.51 2.50 2.49 2.48 2.47 100 -40 -20 1000 100 =1mA R 100 10 Slope Resistance v Frequency Transient Response - Repetitive Test 4-167 ZR285-2.5 I =150 A to 5mA Temperature (°C) Temperature Drift I =150 =5mA R 100K 100 1K 10K Frequency (kHz) I =5mA R I =150 A R ...

Page 4

... Pin 3 floating or connected to pin 1 SO8 Package Suffix – N8 Top View Partmark Part No 28A ZR285R01 28B ZR285Y03 28C ZR285Y02 ZR285803 ZR285Y01 ZR285802 * E-Line 3 pin Reversed † E-Line 2 pin ZR285801 ZR28503 ZR28502 4-168 Tol% Package Partmark 1 E-Line * ZR28501 3 E-Line † ZR28503 2 E-Line † ZR28502 1 E-Line † ...

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