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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 4-181 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 4-182 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) 4-183 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 4-184 |
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