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Details, datasheet, quote on part number:ZRB500Y01
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Datasheet text preview:
PRECISION 5.0 VOLT MICROPOWER VOLTAGE REFERENCE
ISSUE 3 - JANUARY 2003 DEVICE DESCRIPTION
The ZRB500 uses a bandgap circuit design to ac hie ve a precision micropower voltage reference of 5.0 volts. The device is available in a small outline surface mount package, ideal for applications where space saving is important. The ZRB500 design provides a stable voltage without an external capacitor and is stable w i t h capacitive loads. The ZRB500 is recommended for operation between 50µA and 15mA and so is ideally suited to low power and battery powered applications. Excellent performance is maintained to an absolute maximum of 25mA, however the rugged design and 20 volt processing allows the reference to withstand transient effects a n d c u r r e n t s up to 2 0 0 m A . Supe r i o r switching capability allows the device to reach stable operating conditions in only a few microseconds.
ZRB500
FEATURES
· · · · · · · · · · · · · · ·
Small outline SOT23 style package No stabilising capacitor required Typical TC 15ppm/°C Typical slope resistance 0.33
± 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.
SCHEMATIC DIAGRAM
V
R
G nd
ZRB500
ABSOLUTE MAXIMUM RATING
Reverse Current Forward Current Operating Temperature Storage Temperature 25mA 25mA -40 to 85°C -55 to 125°C Power Dissipation (Tamb=25°C) SOT23 330mW
ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated) Tamb=25°C
SYMB OL PA RAMETER CONDITIONS MIN VR Rever se Breakdown Voltage IR=150µA 4.95 4.90 4.85 LIMITS TYP MA X 5.0 5.0 5.0 30 0.05 15 IR(min) to IR(max) IR = 1mA f = 100Hz IAC= 0.1 IR IR = 150µA f = 10Hz to 10kHz 5.05 5.10 5.15 50 15 50 1 2 3 V TOL. % UNITS
IMIN IR TC RS § ZR
Minimum Operating Current Recommended Operating Current Average Reverse Breakdown Voltage Temp. Co. Slope Resistance Reverse Dynamic Impedance
µA
mA ppm/°C
0.33 1.5 0.4 1
EN
Wideband Noise Voltage
105
µV(r ms)
TC =
Note: VR(max) - VR(min) is the maximum deviat ion in reference voltage measured over the full operating temperature r ange. § RS = VR Change (IR (min) to IR (max)) IR (max) - IR (min)
Reverse Current (µA)
(VR(max)-VR(min)) x 1000000 VR x (T(max)-T(min))
60 50 40 TA=85°C 30 20 10 TA=-40°C 0 0 2 .0 4.0 6.0
Reverse Voltage (V)
Reverse Characteristics
4-243
ZRB500
TYPICAL CHARACTERISTICS
1.6 1.4 5.02 IR=150µA to 15mA
Reference voltage (V)
0.1 1 10 100 1000
Forward Voltage (V)
1.2 1.0 0.8 0.6 0.4
5.00
4.98
4.96 -40 -20 0 20 40 60 80
Forward Current (mA)
Temperature (°C)
Forward Characteristics
Temperature Drift
3.0
1000
IR=150µA
Slope resistance ()
2.0
Slope resistance ()
100
IR=5mA
10
TA=-40°C 1.0 TA=25°C TA=85°C 0 0.1 1 10 100
1
0.1 0.01 0.1 1 10 100
Reference Current (mA)
Frequency (kHz)
Slope Resistance v Current
6.0
5 mA
Slope Resistance v Frequency
6.0
4.0
4.0
VR - (V)
VIN
VIN
1K 5mA 33K 150 µA VR
VR - (V)
2.0
1 50 µA
1K 5mA
33 K 15 0µA VR
2.0
0 10
0 10
VIN - (V)
VIN - (V)
1000
0 0 500
0 0 1 2 3 4
Time (µs)
Time (µs)
Transient Response (Single Pulse)
Transient Response (Repetitive Pulse)
4-244
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