PRECISION 4.1 VOLT MICROPOWER VOLTAGE REFERENCE ZR4040-4.1 ISSUE 4- JANUARY 2003 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 a small outline surface mount package, 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 SOT23 package 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 effe cts a nd cu rre n ts up to 200mA. Superior switching capability allows the device to reach stable operating 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 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 VR Reverse Breakdown Voltage IMIN Minimum Operating Current IR Recommended Operating Current TC † Average Reverse Breakdown Voltage Temp. Co. LIMITS IR=150µA MIN TYP 4.05 4.01 4.096 4.14 4.096 4.18 20 100 ppm/°C 0.55 2 Ω 1.2 Ω IR(min) to IR(max) IR = 1mA f = 100Hz IAC= 0.1 IR 0.5 EN Wideband Noise Voltage IR = 1mA f = 10Hz to 10kHz 90 (VR(max)−VR(min)) x 1000000 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)) µV(rms) 50 Reverse Current (µA) VR x (T(max)−T(min)) IR (max) − IR (min) V mA Reverse Dynamic Impedance RS = 1 2 15 0.06 ZR § MAX µA Slope Resistance TC = UNITS 60 25 RS § † 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 0.01 10 Reference Current (mA) 1 10 100 Slope Resistance v Frequency Slope Resistance v Current 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 E-Line, 3 pin, Rev Package Suffix – R SOT23 Package Suffix – F Bottom View – Pin 3 floating or connected to pin 1 Top View – Pin 1 floating or connected to pin 2 ORDERING INFORMATION Part Number Tol% Package Partmark ZR40402F41 2 SOT23 40E 40F ZR40401F41 1 SOT23 ZR40402R41 2 E-Line * ZR4040241 ZR40401R41 1 E-Line * ZR4040141 * E-Line, 3 pin Reversed 4-180