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 G nd 1 - 42 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 ZRC330 ZRC330 TYPICAL CHARACTERISTICS Power Dissipation (Tamb=25°C) SOT23 330mW E-Line, 3 pin (TO92) 500mW E-Line, 2 pin (TO92) 500mW SO8 625mW 1.6 ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated) Tamb=25°C Reverse Breakdown Voltage VR IMIN 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 CONDITIONS IR=150µA LIMITS TOL.% UNITS MIN TYP MAX 3.27 3.234 3.2 3.3 3.3 3.3 3.33 3.366 3.4 15 20 µA 5 mA 50 ppm/°C 0.02 15 IR(min) to IR(max) 1 2 3 IR=150µA to 5mA 1.2 1.0 0.8 0.6 3.30 3.29 0.4 V 0.1 1 10 100 1000 -40 -20 Forward Current (mA) 0.6 2 Ω IR = 1mA f = 100Hz IAC= 0.1 IR 0.5 1.2 Ω IR = 150µA f = 10Hz to 10kHZ 43 0 20 40 60 80 Temperature (°C) Forward Characteristics Temperature Drift 3.0 1000 IR=150µA Slope resistance (Ω) SYMBOL PARAMETER 3.31 1.4 Reference voltage (V) 25mA 25mA -40 to 85°C -55 to 125°C Slope resistance (Ω) Reverse Current Forward Current Operating Temperature Storage Temperature Forward Voltage (V) ABSOLUTE MAXIMUM RATING 2.0 TA =-40°C TA =25°C 1.0 TA=85°C µV(rms) IR=1mA 10 IR=5mA 1 0.1 0 0.1 100 1 0.01 10 0.1 1 Frequency (KHz) Reference Current (mA) 10 100 Slope Resistance v Frequency Slope Resistance v Current 40 3.0 3.0 TA =85°C 10 TA =-40°C TA =25°C 0 0 2.0 Reverse Voltage (V) Reverse Characteristics 1 - 43 1.0 NI 150 µA 2.0 INPUT 43K 150µA OUTPUT R 1K3 5mA 1.0 0 0 10 10 - (V) 20 5 mA V - (V) R INPUT 1K3 43K 5mA 150µA OUTPUT NI 0 V VR Change (IR (min) to IR (max)) IR (max) − IR (min) 150 µA 2.0 V - (V) VR x Temperature Change 5 mA 30 - (V) RS = VR Change x 1000000 0 V § TC = Reverse Current (µA) 4.0 0 100 Time (µs) 200 300 0 1 2 Time (µs) 3 Transient Response (Repetitive Pulse) Transient Response (Single Pulse) 1 - 44 4 ZRC330 ZRC330 TYPICAL CHARACTERISTICS Power Dissipation (Tamb=25°C) SOT23 330mW E-Line, 3 pin (TO92) 500mW E-Line, 2 pin (TO92) 500mW SO8 625mW 1.6 ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated) Tamb=25°C Reverse Breakdown Voltage VR IMIN 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 CONDITIONS IR=150µA LIMITS TOL.% UNITS MIN TYP MAX 3.27 3.234 3.2 3.3 3.3 3.3 3.33 3.366 3.4 15 20 µA 5 mA 50 ppm/°C 0.02 15 IR(min) to IR(max) 1 2 3 IR=150µA to 5mA 1.2 1.0 0.8 0.6 3.30 3.29 0.4 V 0.1 1 10 100 1000 -40 -20 Forward Current (mA) 0.6 2 Ω IR = 1mA f = 100Hz IAC= 0.1 IR 0.5 1.2 Ω IR = 150µA f = 10Hz to 10kHZ 43 0 20 40 60 80 Temperature (°C) Forward Characteristics Temperature Drift 3.0 1000 IR=150µA Slope resistance (Ω) SYMBOL PARAMETER 3.31 1.4 Reference voltage (V) 25mA 25mA -40 to 85°C -55 to 125°C Slope resistance (Ω) Reverse Current Forward Current Operating Temperature Storage Temperature Forward Voltage (V) ABSOLUTE MAXIMUM RATING 2.0 TA =-40°C TA =25°C 1.0 TA=85°C µV(rms) IR=1mA 10 IR=5mA 1 0.1 0 0.1 100 1 0.01 10 0.1 1 Frequency (KHz) Reference Current (mA) 10 100 Slope Resistance v Frequency Slope Resistance v Current 40 3.0 3.0 TA =85°C 10 TA =-40°C TA =25°C 0 0 2.0 Reverse Voltage (V) Reverse Characteristics 1 - 43 1.0 NI 150 µA 2.0 INPUT 43K 150µA OUTPUT R 1K3 5mA 1.0 0 0 10 10 - (V) 20 5 mA V - (V) R INPUT 1K3 43K 5mA 150µA OUTPUT NI 0 V VR Change (IR (min) to IR (max)) IR (max) − IR (min) 150 µA 2.0 V - (V) VR x Temperature Change 5 mA 30 - (V) RS = VR Change x 1000000 0 V § TC = Reverse Current (µA) 4.0 0 100 Time (µs) 200 300 0 1 2 Time (µs) 3 Transient Response (Repetitive Pulse) Transient Response (Single Pulse) 1 - 44 4 ZRC330 ZRC330 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 ZRC330A03 3 E-Line • ZRC33003 ZRC330R03 3 E-Line * ZRC330R3 ZRC330A02 2 E-Line • ZRC33002 ZRC330R02 2 E-Line * ZRC330R2 ZRC330A01 1 E-Line • ZRC33001 ZRC330R01 1 E-Line * ZRC330R1 ZRC330F03 3 SOT23 33A ZRC330Y03 3 E-Line ZRC33003 ZRC330F02 2 SOT23 33B ZRC330Y02 2 E-Line ZRC33002 ZRC330F01 1 SOT23 33C ZRC330Y01 1 E-Line ZRC33001 ZRC330N803 3 SO8 ZRC33003 ZRC330N802 2 SO8 ZRC33002 ZRC330N801 1 SO8 ZRC33001 * E-Line 3 pin Reversed E-Line 2 pin • E-Line 3 pin ZRC330 ZRC330 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 ZRC330A03 3 E-Line • ZRC33003 ZRC330R03 3 E-Line * ZRC330R3 ZRC330A02 2 E-Line • ZRC33002 ZRC330R02 2 E-Line * ZRC330R2 ZRC330A01 1 E-Line • ZRC33001 ZRC330R01 1 E-Line * ZRC330R1 ZRC330F03 3 SOT23 33A ZRC330Y03 3 E-Line ZRC33003 ZRC330F02 2 SOT23 33B ZRC330Y02 2 E-Line ZRC33002 ZRC330F01 1 SOT23 33C ZRC330Y01 1 E-Line ZRC33001 ZRC330N803 3 SO8 ZRC33003 ZRC330N802 2 SO8 ZRC33002 ZRC330N801 1 SO8 ZRC33001 * E-Line 3 pin Reversed E-Line 2 pin • E-Line 3 pin