PRECISION 4.0 VOLT MICROPOWER VOLTAGE REFERENCE ZRA400 ISSUE 1 - JANUARY 1996 DEVICE DESCRIPTION The ZRA400 uses a bandgap circuit design to achieve a precision micropower voltage reference of 4.096 volts. The device is available in small outline surface mount packages, ideal for applications where space saving is important. The ZRA400 design provides a stable voltage without an external capacitor and is stable with capacitive loads. The ZRA400 is recommended for operation between 50µA 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 SO8, SOT23 and TO92 style packages. SCHEMATIC DIAGRAM V R G nd 1 - 33 • • • • • • No stabilising capacitor required Typical TC 15ppm/°C Typical slope resistance 0.55Ω ± 3%, 2% and 1% tolerance Industrial temperature range Operating current 50µA to 5mA APPLICATIONS • • • • • • • Battery powered and portable equipment. Metering and measurement systems. Instrumentation. Test equipment. Data acquisition systems. Precision power supplies. Crystal oscillators ZRA400 ZRA400 Power Dissipation (Tamb=25°C) SOT23 330mW E-Line, 3 pin (TO92) 500mW E-Line, 2 pin (TO92) 500mW SO8 625mW SYMBOL PARAMETER CONDITIONS LIMITS MIN VR IMIN Minimum Operating Current IR Recommended Operating Current TC 4.05 4.01 3.97 Reverse Breakdown Voltage IR=150µA Average Reverse Breakdown Voltage Temp. Co. TYP 0.05 15 UNITS MAX 4.096 4.14 4.096 4.18 4.096 4.22 25 IR(min) to IR(max) TOL. % 1.6 1.4 Reference voltage (V) ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated) Tamb=25°C TYPICAL CHARACTERISTICS Forward Voltage (V) 25mA 25mA -40 to 85°C -55 to 125°C 1.2 1.0 0.8 0.6 IR=150µA to 5mA 4.10 4.08 4.06 0.4 1 2 3 0.1 V 10 100 -40 1000 -20 µA 5 mA ppm/°C RS § Slope Resistance 0.55 2 Ω ZR Reverse Dynamic Impedance IR = 1mA f = 100Hz IAC= 0.1 IR 0.5 1.2 Ω 2.0 TA=-40°C TA=85°C 0.1 100 IR=1mA 10 IR=5mA 1 0.1 1 0.01 10 Reverse Voltage (V) Reverse Characteristics 4.0 10 100 4.0 V - (V) INPUT 40K 1K2 150µA 5mA OUTPUT 150 µA 5mA R INPUT 40K 1K2 150µA 5mA OUTPUT 2.0 0 - (V) 0 10 NI NI 0 V 2.0 1 Slope Resistance v Frequency 150 µA 2.0 10 0 5mA R TA =85°C TA =25°C TA =-40°C 20 0 1 - 34 V - (V) 4.0 0.1 Frequency (kHz) 40 30 80 IR=150µA Slope Resistance v Current - (V) VR Change (IR (min) to IR (max)) § RS = IR (max) − IR (min) 60 TA=25°C 0 V VR x Temperature Change 40 1000 4.0 50 Reverse Current (µA) TC = 20 Temperature (°C) Reference Current (mA) VR Change x 1000000 0 Temperature Drift Forward Characteristics 50 50 1 Forward Current (mA) Slope resistance (Ω) Reverse Current Forward Current Operating Temperature Storage Temperature Slope resistance (Ω) ABSOLUTE MAXIMUM RATING 0 1000 2000 10 0 0 1 2 3 Time (µs) Time (µs) Transient Response (Single Pulse) Transient Response (Repetitive Pulse) 1 - 35 4 ZRA400 ZRA400 Power Dissipation (Tamb=25°C) SOT23 330mW E-Line, 3 pin (TO92) 500mW E-Line, 2 pin (TO92) 500mW SO8 625mW SYMBOL PARAMETER CONDITIONS LIMITS MIN VR IMIN Minimum Operating Current IR Recommended Operating Current TC 4.05 4.01 3.97 Reverse Breakdown Voltage IR=150µA Average Reverse Breakdown Voltage Temp. Co. TYP 0.05 15 UNITS MAX 4.096 4.14 4.096 4.18 4.096 4.22 25 IR(min) to IR(max) TOL. % 1.6 1.4 Reference voltage (V) ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated) Tamb=25°C TYPICAL CHARACTERISTICS Forward Voltage (V) 25mA 25mA -40 to 85°C -55 to 125°C 1.2 1.0 0.8 0.6 IR=150µA to 5mA 4.10 4.08 4.06 0.4 1 2 3 0.1 V 10 100 -40 1000 -20 µA 5 mA ppm/°C RS § Slope Resistance 0.55 2 Ω ZR Reverse Dynamic Impedance IR = 1mA f = 100Hz IAC= 0.1 IR 0.5 1.2 Ω 2.0 TA=-40°C TA=85°C 0.1 100 IR=1mA 10 IR=5mA 1 0.1 1 0.01 10 Reverse Voltage (V) Reverse Characteristics 4.0 10 100 4.0 V - (V) INPUT 40K 1K2 150µA 5mA OUTPUT 150 µA 5mA R INPUT 40K 1K2 150µA 5mA OUTPUT 2.0 0 - (V) 0 10 NI NI 0 V 2.0 1 Slope Resistance v Frequency 150 µA 2.0 10 0 5mA R TA =85°C TA =25°C TA =-40°C 20 0 1 - 34 V - (V) 4.0 0.1 Frequency (kHz) 40 30 80 IR=150µA Slope Resistance v Current - (V) VR Change (IR (min) to IR (max)) § RS = IR (max) − IR (min) 60 TA=25°C 0 V VR x Temperature Change 40 1000 4.0 50 Reverse Current (µA) TC = 20 Temperature (°C) Reference Current (mA) VR Change x 1000000 0 Temperature Drift Forward Characteristics 50 50 1 Forward Current (mA) Slope resistance (Ω) Reverse Current Forward Current Operating Temperature Storage Temperature Slope resistance (Ω) ABSOLUTE MAXIMUM RATING 0 1000 2000 10 0 0 1 2 3 Time (µs) Time (µs) Transient Response (Single Pulse) Transient Response (Repetitive Pulse) 1 - 35 4 ZRA400 ZRA400 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 ZRA400A03 3 E-Line • ZRA40003 ZRA400R03 3 E-Line * ZRA400R3 ZRA400A02 2 E-Line • ZRA40002 ZRA400R02 2 E-Line * ZRA400R2 ZRA400A01 1 E-Line • ZRA40001 ZRA400R01 1 E-Line * ZRA400R1 ZRA400F03 3 SOT23 40A ZRA400Y03 3 E-Line ZRA40003 ZRA400F02 2 SOT23 40B ZRA400Y02 2 E-Line ZRA40002 ZRA400F01 1 SOT23 40C ZRA400Y01 1 E-Line ZRA40001 ZRA400N803 3 SO8 ZRA40003 ZRA400N802 2 SO8 ZRA40002 ZRA400N801 1 SO8 ZRA40001 * E-Line 3 pin Reversed E-Line 2 pin • E-Line 3 pin ZRA400 ZRA400 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 ZRA400A03 3 E-Line • ZRA40003 ZRA400R03 3 E-Line * ZRA400R3 ZRA400A02 2 E-Line • ZRA40002 ZRA400R02 2 E-Line * ZRA400R2 ZRA400A01 1 E-Line • ZRA40001 ZRA400R01 1 E-Line * ZRA400R1 ZRA400F03 3 SOT23 40A ZRA400Y03 3 E-Line ZRA40003 ZRA400F02 2 SOT23 40B ZRA400Y02 2 E-Line ZRA40002 ZRA400F01 1 SOT23 40C ZRA400Y01 1 E-Line ZRA40001 ZRA400N803 3 SO8 ZRA40003 ZRA400N802 2 SO8 ZRA40002 ZRA400N801 1 SO8 ZRA40001 * E-Line 3 pin Reversed E-Line 2 pin • E-Line 3 pin