PRECISION 5.0 VOLT MICROPOWER VOLTAGE REFERENCE ZRB500 ISSUE 1 - OCTOBER 1995 DEVICE DESCRIPTION FEATURES The ZRB500 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 ZRB500 design provides a stable voltage without an external capacitor and is stable with 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 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. SCHEMATIC DIAGRAM V R G nd 1 - 36 • • • • • • • • • • • • • • • Small outline SOT23,SO8 and TO92 style packages No stabilising capacitor required Typical TC 15ppm/ °C Typical slope resistance 0.33Ω ± 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. ZRB500 ZRB500 Power Dissipation (Tamb=25°C) SOT23 330mW E-Line, 3 pin (TO92) 500mW E-Line, 2 pin (TO92) 500mW SO8 625mW TYPICAL CHARACTERISTICS Minimum Operating Current IR Recommended Operating Current TC Average Reverse Breakdown Voltage Temp. Co. RS § Slope Resistance ZR Reverse Dynamic Impedance EN Wideband Noise Voltage MIN TYP MAX 4.95 4.90 4.85 5.0 5.0 5.0 5.05 5.10 5.15 30 50 µA 15 mA 50 ppm/°C 0.05 15 IR(min) to IR(max) 1 2 3 V 100 1000 IR = 1mA f = 100Hz IAC= 0.1 IR 0.4 Ω IR = 150µA f = 10Hz to 10kHZ 100 3.0 2.0 TA=-40°C 1.0 TA=25°C TA =85°C 0 10 IR=5mA 10 1 0.01 20 TA =-40°C NI 6.0 1 Frequency (kHz) 10 100 Slope Resistance v Frequency 6.0 5 mA 2.0 R 30 0.1 Reference Current (mA) V - (V) TA =85°C 0 4.0 150 µA 1K 5mA 33K 150µA VR 0 0 10 10 0 VIN 1K 5mA 2.0 R NI 0 500 Time (µs) 1000 33K 150µA VR 0 0 Transient Response (Single Pulse) 1 2 3 Time (µs) Transient Response (Repetitive Pulse) Reverse Characteristics 1 - 37 100 100 VIN Reverse Voltage (V) 80 0.1 1 0.1 µV(rms) 4.0 60 IR=150µA 4.0 2.0 40 1000 50 0 20 Temperature Drift 6.0 10 0 Temperature (°C) Slope Resistance v Current 40 -20 -40 Forward Characteristics Ω 1 10 Forward Current (mA) - (V) VR Change (IR (min) to IR (max)) IR (max) − IR (min) 4.98 4.96 1 V § RS = VR x Temperature Change 0.6 0.1 0.33 1.5 Reverse Current (µA) TC = 0.8 0.4 60 VR Change x 1000000 Reference voltage (V) UNITS Slope resistance (Ω) IMIN IR=150µA TOL. % 1.0 5.00 V - (V) Reverse Breakdown Voltage LIMITS 1.2 - (V) VR CONDITIONS IR=150µA to 15mA 1.4 ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated) Tamb=25°C SYMBOL PARAMETER 5.02 1.6 Forward Voltage (V) 25mA 25mA -40 to 85°C -55 to 125°C Slope resistance (Ω) Reverse Current Forward Current Operating Temperature Storage Temperature V ABSOLUTE MAXIMUM RATING 1 - 38 4 ZRB500 ZRB500 Power Dissipation (Tamb=25°C) SOT23 330mW E-Line, 3 pin (TO92) 500mW E-Line, 2 pin (TO92) 500mW SO8 625mW TYPICAL CHARACTERISTICS Minimum Operating Current IR Recommended Operating Current TC Average Reverse Breakdown Voltage Temp. Co. RS § Slope Resistance ZR Reverse Dynamic Impedance EN Wideband Noise Voltage MIN TYP MAX 4.95 4.90 4.85 5.0 5.0 5.0 5.05 5.10 5.15 30 50 µA 15 mA 50 ppm/°C 0.05 15 IR(min) to IR(max) 1 2 3 V 100 1000 IR = 1mA f = 100Hz IAC= 0.1 IR 0.4 Ω IR = 150µA f = 10Hz to 10kHZ 100 3.0 2.0 TA=-40°C 1.0 TA=25°C TA =85°C 0 10 IR=5mA 10 1 0.01 20 TA =-40°C NI 6.0 1 Frequency (kHz) 10 100 Slope Resistance v Frequency 6.0 5 mA 2.0 R 30 0.1 Reference Current (mA) V - (V) TA =85°C 0 4.0 150 µA 1K 5mA 33K 150µA VR 0 0 10 10 0 VIN 1K 5mA 2.0 R NI 0 500 Time (µs) 1000 33K 150µA VR 0 0 Transient Response (Single Pulse) 1 2 3 Time (µs) Transient Response (Repetitive Pulse) Reverse Characteristics 1 - 37 100 100 VIN Reverse Voltage (V) 80 0.1 1 0.1 µV(rms) 4.0 60 IR=150µA 4.0 2.0 40 1000 50 0 20 Temperature Drift 6.0 10 0 Temperature (°C) Slope Resistance v Current 40 -20 -40 Forward Characteristics Ω 1 10 Forward Current (mA) - (V) VR Change (IR (min) to IR (max)) IR (max) − IR (min) 4.98 4.96 1 V § RS = VR x Temperature Change 0.6 0.1 0.33 1.5 Reverse Current (µA) TC = 0.8 0.4 60 VR Change x 1000000 Reference voltage (V) UNITS Slope resistance (Ω) IMIN IR=150µA TOL. % 1.0 5.00 V - (V) Reverse Breakdown Voltage LIMITS 1.2 - (V) VR CONDITIONS IR=150µA to 15mA 1.4 ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated) Tamb=25°C SYMBOL PARAMETER 5.02 1.6 Forward Voltage (V) 25mA 25mA -40 to 85°C -55 to 125°C Slope resistance (Ω) Reverse Current Forward Current Operating Temperature Storage Temperature V ABSOLUTE MAXIMUM RATING 1 - 38 4 ZRB500 ZRB500 CONNECTION DIAGRAMS E-Line, 2 pin Package Suffix Y Bottom View E-Line, 3 pin Package Suffix A Bottom View Pin 1 floating or connected to pin 3 SOT23 Package Suffix F Top View Pin 1 floating or connected to pin 2 ORDERING INFORMATION E-Line, 3 pin,Rev Package Suffix R Bottom View Pin 3 floating or connected to pin 1 SO8 Package Suffix N8 Top View Part No Tol% Package Partmark Part No Tol% Package Partmark ZRB500A03 3 E-Line • ZRB50003 ZRB500R03 3 E-Line * ZRB500R3 ZRB500A02 2 E-Line • ZRB50002 ZRB500R02 2 E-Line * ZRB500R2 ZRB500A01 1 E-Line • ZRB50001 ZRB500R01 1 E-Line * ZRB500R1 ZRB500F03 3 SOT23 50G ZRB500Y03 3 E-Line ZRB50003 ZRB500F02 2 SOT23 50H ZRB500Y02 2 E-Line ZRB50002 ZRB500F01 1 SOT23 50I ZRB500Y01 1 E-Line ZRB50001 ZRB500N803 3 SO8 ZRB50003 ZRB500N802 2 SO8 ZRB50002 ZRB500N801 1 SO8 ZRB50001 * E-Line 3 pin Reversed E-Line 2 pin • E-Line 3 pin ZRB500 ZRB500 CONNECTION DIAGRAMS E-Line, 2 pin Package Suffix Y Bottom View E-Line, 3 pin Package Suffix A Bottom View Pin 1 floating or connected to pin 3 SOT23 Package Suffix F Top View Pin 1 floating or connected to pin 2 ORDERING INFORMATION E-Line, 3 pin,Rev Package Suffix R Bottom View Pin 3 floating or connected to pin 1 SO8 Package Suffix N8 Top View Part No Tol% Package Partmark Part No Tol% Package Partmark ZRB500A03 3 E-Line • ZRB50003 ZRB500R03 3 E-Line * ZRB500R3 ZRB500A02 2 E-Line • ZRB50002 ZRB500R02 2 E-Line * ZRB500R2 ZRB500A01 1 E-Line • ZRB50001 ZRB500R01 1 E-Line * ZRB500R1 ZRB500F03 3 SOT23 50G ZRB500Y03 3 E-Line ZRB50003 ZRB500F02 2 SOT23 50H ZRB500Y02 2 E-Line ZRB50002 ZRB500F01 1 SOT23 50I ZRB500Y01 1 E-Line ZRB50001 ZRB500N803 3 SO8 ZRB50003 ZRB500N802 2 SO8 ZRB50002 ZRB500N801 1 SO8 ZRB50001 * E-Line 3 pin Reversed E-Line 2 pin • E-Line 3 pin