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PRECISION 5.0 VOLT MICROPOWER VOLTAGE REFERENCE
ISSUE 2 - MARCH 1998
ZR4040-5.0
DEVICE DESCRIPTION
The ZR4040-5.0 uses a bandgap circuit design to achieve a precision micropower voltage reference of 5.0 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 ZR4040-5.0 design provides a stable voltage without an external capacitor and is stable with capacitive loads. The ZR4040-5.0 is recommended for operation between 60A 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 and currents up to 200mA. Superior switching capability allows the de v i c e t o r e a c h s t a b l e ope ra ti n g conditions in only a few microseconds.
FEATURES
* * * * * * * * * * * * * * *
Small outline SO8 and SOT23 packages TO92 style package No stabilising capacitor required Typical TC 20ppm/C Typical slope resistance 0.33 2% and 1% tolerance Industrial temperature range Operating current 60A to 15mA Transient response,stable in less than 10s
APPLICATIONS
Battery powered and portable equipment. Metering and measurement systems. Instrumentation. Test equipment. Data acquisition systems. Precision power supplies.
SCHEMETIC DIAGRAM
V
R
G nd
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ZR4040-5.0
ABSOLUTE MAXIMUM RATING
Reverse Current Forward Current Operating Temperature Storage Temperature 25mA 25mA -40 to 85C -55 to 125C Power Dissipation (Tamb=25C) SOT23 330mW SO8 625mW E-Line, 3 pin (TO92) 500mW
ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated) Tamb=25C
SYMBOL PARAMETER CONDITIONS LIMITS TOL. % MAX 5.05 5.10 60 15 20 IR(min) to IR(max) 0.33 IR = 1mA f = 100Hz IAC=0.1 IR IR = 1mA f = 10Hz to 10kHz 0.4 1.5 1.0 100 1 2 V A mA ppm/C UNITS
MIN VR IMIN IR TC Reverse Breakdown Voltage Minimum Operating Current Recommended Operating Current Average Reverse Breakdown Voltage Temp. Co. Slope Resistance Reverse Dynamic Impedance Wideband Noise Voltage 0.06 IR=150A 4.95 4.90
TYP 5.0 5.0 30
RS ZR
EN
105
V (rms)
TC =
(VR(max)-VR(min)) x 1000000
Reverse Current (A)
60 50 40 TA=85C 30 20 10 TA=-40C 0 0 2.0 4.0 6.0
VR x (T(max)-T(min))
Note: VR(max) - VR(min) is the maximum deviation in reference voltage measured over the full operating temperature range.
VR Change(IR (min) to IR (max)) RS = IR (max) - IR (min)
Reverse Voltage (V)
Reverse Characteristics
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ZR4040-5.0
TYPICAL CHARACTERISTICS
1.6 1.4 5.02 IR=150A to 15mA
Reference voltage (V)
Forward Voltage (V)
1.2 1.0 0.8 0.6 0.4 0.1 1 10 100 1000
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=150A
Slope resistance ()
2.0
Slope resistance ()
100
IR=5mA
10
TA=-40C 1.0 TA=25C TA=85C 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 150A VR
VR - (V)
2.0
150 A
1K 5mA
33K 150A VR
2.0
0 10
0 10
VIN - (V)
0 0 500 1000
VIN - (V)
0 0 1 2 3 4
Time (s)
Time (s)
Transient Response (Single Pulse)
Transient Response (Repetitive Pulse)
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ZR4040-5.0
CONNECTION DIAGRAMS
SO8 Package Suffix - N8 SOT23 Package Suffix - F
Top View
Top View - Pin 1 floating or connected to pin 2
E-Line, 3 pin, Rev Package Suffix - R
Bottom View - Pin 3 floating or connected to pin 1
ORDERING INFORMATION
Part Number ZR40402F50 ZR40401F50 ZR40402N850 ZR40401N850 ZR40402R50 ZR40401R50 Tol% Package Partmark 2 1 2 1 2 1 SOT23 SOT23 SO8 SO8 50L 50M ZR4040250 ZR4040150
E-Line * ZR4040250 E-Line * ZR4040150
* E-Line, 3 pin Reversed
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