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
SCHEMATIC DIAGRAM
V
R
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
Gnd
ZRC330
ABSOLUTE MAXIMUM RATING
Reverse Current |
25mA |
Power Dissipation (Tamb=25°C) |
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SOT23 |
330mW |
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Forward Current |
25mA |
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E-Line, 3 pin (TO92) |
500mW |
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Operating Temperature |
-40 to 85°C |
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E-Line, 2 pin (TO92) |
500mW |
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Storage Temperature |
-55 to 125°C |
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SO8 |
625mW |
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ELECTRICAL CHARACTERISTICS
TEST CONDITIONS (Unless otherwise stated) Tamb=25°C
SYMBOL |
PARAMETER |
CONDITIONS |
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LIMITS |
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TOL.% |
UNITS |
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MIN |
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TYP |
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MAX |
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VR |
Reverse Breakdown Voltage |
IR=150μA |
3.27 |
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3.3 |
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3.33 |
1 |
V |
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3.234 |
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3.3 |
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3.366 |
2 |
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3 |
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3.2 |
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3.3 |
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3.4 |
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IMIN |
Minimum Operating Current |
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15 |
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20 |
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μA |
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IR |
RecommendedOperatingCurrent |
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0.02 |
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5 |
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mA |
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TC † |
Average Reverse Breakdown |
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15 |
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50 |
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ppm/°C |
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Voltage Temp. Co. |
IR(min) to |
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IR(max) |
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RS § |
Slope Resistance |
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0.6 |
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2 |
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Ω |
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ZR |
Reverse Dynamic Impedance |
IR = 1mA |
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0.5 |
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1.2 |
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Ω |
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f = 100Hz |
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IAC= 0.1 IR |
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EN |
Wideband Noise Voltage |
IR = 150μA |
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43 |
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f = 10Hz to |
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μV(rms) |
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10kHZ |
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40 |
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† |
TC = |
VR Changex 1000000 |
) |
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VR x Temperature Change |
A |
30 |
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μ |
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( |
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t |
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n |
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VR Change(IR (min) to IR (max)) |
rre |
20 |
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RS = |
u |
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§ |
IR (max) − IR (min) |
C |
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T)=85°C |
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rse |
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10 |
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e |
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Rev |
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T)=-40°C |
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T)=25°C |
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0 |
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0 |
2.0 |
4.0 |
Reverse Voltage (V)
Reverse Characteristics
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