Zetex ZRB500A01, ZRB500A02, ZRB500A03, ZRB500F01, ZRB500F02 Datasheet
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PRECISION 5.0 VOLT MICROPOWER
VOLTAGE REFERENCE
ISSUE 1 - OCTOBER 1995
ZRB500
DEVICE DESCRIPTION
The ZRB500 uses a bandgap circuit design to
achieve a precision micropower voltage
reference of 5.0 volts. The device is available in
small outline surf ace mount packages, ideal for
applications where space saving is important,
as well as packages for through hole
requirements.
The ZRB500 design provides a stable voltage
without an external capacitor and is stable with
capacitive loads. The ZRB500 is
recommended for operation between 50µA
and 15mA and so is id eally suited to low power
and battery powered applications.
Excellent performance is maintained to a
suggested 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.
SCHEMATIC DIAGRAM
V
R
FEATURES
• Small outline SOT23,SO8 and TO92 style
packages
• No stabilising capacitor required
• Typical T
15ppm/ °C
C
• Typical slope resistance 0.33Ω
• ± 3%, 2% and 1% tolerance
• Industrial temperature range
• Operating current 50µA 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.
G
nd
1 - 36
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
E-Line, 3 pin (TO92) 500mW
E-Line, 2 pin (TO92) 500mW
SO8 625mW
ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (Unless otherwise stated) T
amb
=25°C
amb
=25°C)
SYMBOL PARAMETER
CONDITIONS LIMITS TOL.
MIN TYP MAX
4.95
V
I
I
R
MIN
R
Reverse Breakdown Voltage
=150µA
I
R
Minimum Operating Current 30 50
Recommended Operating
5.0
4.90
5.0
4.85
5.0
0.05 15 mA
Current
Average Reverse Breakdown
T
C
Voltage Temp. Co. I
§ Slope Resistance 0.33 1.5
R
S
Z
R
E
N
Reverse Dynamic Impedance
Wideband Noise Voltage
to
R(min)
I
R(max)
=1mA
I
R
f = 100Hz
= 0.1 I
I
AC
I
= 150µA
R
R
15 50 ppm/°C
0.4 1
100
f = 10Hz to
10kHZ
)
A
µ
(
t
rren
Cu
rse
e
ev
R
60
50
40
30
20
10
0
TA=85°C
0
T
=
C
VR x Temperature Change
§ R
V
=
S
V
Change x 1000000
R
Change (IR (min) to IR (max))
R
I
(max ) − IR (min)
R
Reverse Voltage (V)
5.05
5.10
5.15
%
1
2
3
TA=-40°C
UNITS
V
µA
Ω
Ω
µV(rms)
6.02.0 4.0
Reverse Characteristics
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