Zetex ZRC330F02, ZRC330F03, ZRC330N801, ZRC330N802, ZRC330N803 Datasheet
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PRECISION 3.3 VOLT LOW KNEE
CURRENT VOLTAGE REFERENCE
ISSUE 2 - FEBRUARY 1997
DEVICE DESCRIPTION
The ZRC330 uses a bandgap circuit design to
achieve a precision micropower voltage
reference of 3.3 volts. The device is available
in small outline surface mount packages, ideal
for applications where space saving is
important.
The ZRC330 design provides a stable voltage
without an external capacitor and is stable with
capacitive loads. The ZRC330 is recommended
for operation between 20µA and 5mA and so is
ideally 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.
FEATURES
• Small outline SOT23, SO8 and TO92
style packages
ZRC330
• No stabilising capacitor required
• Low knee current, 15µA typical
• Typical slope resistance 0.6Ω
• ± 3%, 2% and 1% tolerance
• Industrial temperature range
• Operating current 20µA to 5mA
APPLICATIONS
• Battery powered and portable equipment.
• Metering and measurement systems.
• Instrumentation.
• Test equipment.
• Data acquisition systems.
• Precision power supplies.
• Crystal oscillators
SCHEMATIC DIAGRAM
V
G
R
nd
1 - 42
ZRC330
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
SYMBOL PARAMETER
V
I
I
T
R
MIN
R
C
Reverse Breakdown Voltage
Minimum Operating Current 15 20
Recommended Operating Current 0. 02 5 mA
Average Reverse Breakdown
Voltage Temp. Co. I
§ Slope Resistance 0.6 2
R
S
Z
R
E
N
Reverse Dynamic Impedance
Wideband Noise Voltage
CONDITIONS LIMITS TOL.% UNITS
=150µA
I
R
to
R(min)
I
R(max)
I
=1mA
R
f = 100Hz
= 0.1 I
I
AC
=150µA
I
R
f = 10Hz to
10kHZ
amb
MIN TYP MAX
3.27
3.234
3.2
R
=25°C)
amb
=25°C
3.3
3.33
3.3
3.366
3.3
3.4
15 50 ppm/°C
0.5 1.2
43
1
V
2
3
µA
Ω
Ω
µV(rms)
T
=
C
VR x Temperature Change
V
R
=
§
S
V
Change x 1000000
R
Change (IR (min) to IR (max))
R
I
(max ) − IR (min)
R
)
A
µ
t (
n
rre
u
C
rse
Reve
40
30
20
TA=85°C
10
0
0
Reverse Voltage (V)
Reverse Characteristics
T
A
=25°
TA=-40°C
C
4.02.0
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