PRECISION 4.1 VOLT MICROPOWER VOLTAGE REFERENCE ZR4040-4.1 ISSUE 3 - FEBRUARY 1998 DEVICE DESCRIPTION FEATURES The ZR4040-4.1 uses a bandgap circuit design to achieve a precision micropower voltage reference of 4.1 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 ZR4040-4.1 design provides a stable voltage without an external capacitor and is stable with capacitive loads. The ZR4040-4.1 is recommended for operation between 60µA and 15mA and so is ideally suited to low power and battery powered applications. Small outline SO8 and SOT23 packages TO92 style package No stabilising capacitor required Typical TC 20ppm/°C Typical slope resistance 0.55Ω 2% and 1% tolerance Industrial temperature range Operating current 60µA to 15mA 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. • • • • • • SCHEMETIC DIAGRAM V R G nd 4-177 Battery powered and portable equipment. Metering and measurement systems. Instrumentation. Test equipment. Data acquisition systems. Precision power supplies. Crystal oscillators. ZR4040-4.1 ABSOLUTE MAXIMUM RATING Reverse Current Forward Current Operating Temperature Storage Temperature Power Dissipation (Tamb=25°C) SOT23 330mW SO8 625mW E-Line, 3 pin (TO92) 500mW 25mA 25mA -40 to 85°C -55 to 125°C ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated) Tamb= 25°C CONDITION SYMBOL PARAMETER LIMITS VR Reverse Breakdown Voltage IMIN Minimum Operating Current IR Recommended Operating Current TC † Average Reverse Breakdown Voltage Temp. Co. IR(min) to IR(max) RS § Slope Resistance ZR Reverse Dynamic Impedance EN Wideband Noise Voltage TC = RS = TYP 4.05 4.01 4.096 4.14 4.096 4.18 UNITS MAX 1 2 V 60 µA 15 mA 20 100 ppm/°C 0.55 2 Ω IR = 1mA f = 100Hz IAC= 0.1 IR 0.5 1.2 Ω IR = 1mA f = 10Hz to 10kHz 90 0.06 (VR(max)−VR(min)) x 1000000 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. § MIN 25 VR Change(IR (min) to IR (max)) IR (max) − IR (min) µV(rms) 50 Reverse Current (µA) † IR=150µA TOL 40 30 TA=85°C TA=25°C TA=-40°C 20 10 0 0 2.0 Reverse Voltage (V) Reverse Characteristics 4-178 4.0 ZR4040-4.1 TYPICAL CHARACTERISTICS 1.4 Reference voltage (V) Forward Voltage (V) 1.6 1.2 1.0 0.8 0.6 IR=150µA to 5mA 4.10 4.08 4.06 0.4 0.1 1 10 100 -40 1000 -20 0 Forward Current (mA) 40 60 80 Temperature (°C) Temperature Drift Forward Characteristics 1000 Slope resistance (Ω) 4.0 Slope resistance (Ω) 20 2.0 TA=-40°C IR=150µA 100 IR=1mA 10 IR=5mA 1 TA=25°C TA=85°C 0 0.1 0.1 1 10 0.01 Reference Current (mA) Slope Resistance v Current 1 10 100 Slope Resistance v Frequency 4.0 VR - (V) 150 µA 5 mA VR - (V) 4.0 0.1 Frequency (kHz) INPUT 2.0 1K2 5mA 40K 150µA 150 µA 5 mA INPUT 40K 150µA OUTPUT 1K2 5mA 2.0 0 VIN - (V) VIN - (V) OUTPUT 0 10 0 0 1000 2000 10 0 0 1 2 3 Time (µs) Time (µs) Transient Response (Single Pulse) Transient Response (Repetitive Pulse) 4-179 4 ZR4040-4.1 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 Tol% Package Partmark ZR40402F41 2 SOT23 40E ZR40401F41 1 SOT23 40F ZR40402N841 2 SO8 ZR4040241 ZR40401N841 1 SO8 ZR4040141 ZR40402R41 2 E-Line * ZR4040241 ZR40401R41 1 E-Line * ZR4040141 * E-Line, 3 pin Reversed 4-180