ZRA125N801TA

PRECISION 1.25 VOLT MICROPOWER VOLTAGE REFERENCE ZRA125 ISSUE 2 - FEBRUARY 1997 DEVICE DESCRIPTION • • • • • • • The ZRA125 uses a bandgap circuit design to achieve a precision micropower voltage reference of 1.25 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 ZRA125 design provides a stable voltage without an external capacitor and is stable with capacitive loads. The ZRA125 is recommended for operation between 50µA and 5mA and so is ideally suited to low power and battery powered applications. ± 3%,2% and 1% tolerance Industrial temperature range Operating current 50µA to 5mA Transient response, stable in less than 10µs Optional extended current range Battery powered and portable equipment. TE • • • • • • Metering and measurement systems. Instrumentation. Data acquisition systems. LE O FEATURES Small outline SOT23, SO8 and TO92 style packages BS • Typical slope resistance 0.65Ω 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. • Typical TC 30ppm/°C No stabilising capacitor required O SCHEMATIC DIAGRAM V R G nd 1 - 24 Precision power supplies. Test equipment. ZRA125 ZRA125 Minimum Operating Current IR Recommended Operating Current Average Reverse Breakdown Voltage Temp. Co. TYP MAX 1.228 1.225 1.21 1.24 1.252 1.25 1.275 1.25 1.29 30 0.05 IR(min) to IR(max) O TC † MIN LE IMIN TOL. % UNITS µA 5 mA 30 90 Wideband Noise Voltage 40 BS O 0.6 0.4 1.25 1.24 1.23 1.22 1.21 1 10 100 -40 1000 -20 0 20 40 60 80 Temperature (°C) Forward Characteristics ppm/°C Ω IR = 150µA f = 100Hz to 10kHZ 0.8 IR=150µA to 5mA Temperature Drift 1000 0.5 EN 1.0 0.1 50 Reverse Dynamic Impedance IR = 1mA f = 100Hz IAC= 0.1 IR ZR 1.26 Forward Current (mA) Ω Slope Resistance 1.2 V 0.65 2 RS § 1.27 0.2 1 2 3 TE Reverse Breakdown Voltage IR=150µA VR LIMITS 1 1.0 Slope resistance (Ω) CONDITIONS 1.4 Reference voltage (V) ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated) Tamb=25°C SYMBOL PARAMETER TYPICAL CHARACTERISTICS Power Dissipation (Tamb=25°C) SOT23 330mW E-Line, 3 pin (TO92) 500mW E-Line, 2 pin (TO92) 500mW SO8 625mW 25mA 25mA -40 to 85°C -55 to 125°C Forward Voltage (V) Reverse Current Forward Current Operating Temperature Storage Temperature 100 Slope resistance (Ω) ABSOLUTE MAXIMUM RATING TA=-40°C TA=25°C 0.5 TA =85°C IR=150µA 10 IR=1mA IR=5mA 1 0.1 0.01 0 0.1 µV(rms) 1 0.1 10 1 10 100 Frequency (kHz) Reference Current (mA) Slope Resistance v Current Slope Resistance v Frequency 1.5 1.5 INPUT 58K 0.5 40 V - (V) V - (V) 1.0 R 1.0 INPUT R 1 K8 O UTPUT 0.5 O UTPUT 30 C 5° A= 2 5 °C T 10 A= 0 -4 °C NI T 0 0 10 10 - (V) =8 TA 20 NI 0 V VR Change (IR (min) to IR (max)) RS = IR (max) − IR (min) 50 - (V) § VR Change x 1000000 VR x Temperature Change V † TC = Reverse Current (µA) 60 0 0 0 0.2 0.4 0.6 0.8 1.0 1.2 Reverse Voltage (V) Reverse Characteristics 1 - 45 1.4 0 1 2 3 4 0 Time (µs) 2 4 6 Time (µs) Transient Response (IR=5mA) µA) Transient Response (IR=150µ 1 - 26 8 ZRA125 ZRA125 Reverse Breakdown Voltage IR=150µA TC † Average Reverse Breakdown Voltage Temp. Co. 1.24 1.252 1.25 1.275 1.25 1.29 30 0.05 0.8 0.6 0.4 V 0.1 1 10 100 µA 5 mA 1.25 1.24 1.23 1.22 -40 1000 -20 0 20 40 60 80 Temperature (°C) Forward Current (mA) 50 IR=150µA to 5mA 1.21 0.2 1 2 3 Forward Characteristics Temperature Drift 1000 30 IR(min) to IR(max) 90 ppm/°C RS § Slope Resistance 0.65 2 Ω ZR Reverse Dynamic Impedance IR = 1mA f = 100Hz IAC= 0.1 IR 0.5 Ω EN Wideband Noise Voltage 40 IR = 150µA f = 100Hz to 10kHZ 1 1.0 TA=-40°C TA=25°C 0.5 TA =85°C 0 0.1 µV(rms) 1 100 Slope resistance (Ω) Recommended Operating Current 1.228 1.225 1.21 1.0 O IR TYP MAX 1.26 BS Minimum Operating Current MIN UNITS 1.2 O IMIN TOL. % Slope resistance (Ω) VR LIMITS 1.27 TE CONDITIONS 1.4 Reference voltage (V) ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated) Tamb=25°C SYMBOL PARAMETER TYPICAL CHARACTERISTICS Power Dissipation (Tamb=25°C) SOT23 330mW E-Line, 3 pin (TO92) 500mW E-Line, 2 pin (TO92) 500mW SO8 625mW 25mA 25mA -40 to 85°C -55 to 125°C Forward Voltage (V) Reverse Current Forward Current Operating Temperature Storage Temperature LE ABSOLUTE MAXIMUM RATING IR=150µA 10 IR=1mA IR=5mA 1 0.1 0.01 0.1 10 1 10 100 Frequency (kHz) Reference Current (mA) Slope Resistance v Current Slope Resistance v Frequency 1.5 1.5 INPUT 58K 0.5 40 V - (V) V - (V) 1.0 R 1.0 INPUT R 1 K8 O UTPUT 0.5 O UTPUT 30 C 5° A= 2 5 °C T 10 A= 0 -4 °C NI T 0 0 10 10 - (V) =8 TA 20 NI 0 V VR Change (IR (min) to IR (max)) RS = IR (max) − IR (min) 50 - (V) § VR Change x 1000000 VR x Temperature Change V † TC = Reverse Current (µA) 60 0 0 0 0.2 0.4 0.6 0.8 1.0 1.2 Reverse Voltage (V) Reverse Characteristics 1 - 45 1.4 0 1 2 3 4 0 Time (µs) 2 4 6 Time (µs) Transient Response (IR=5mA) µA) Transient Response (IR=150µ 1 - 26 8 ZRA125 ZRA125 CONNECTION DIAGRAMS E-Line, 2 pin Package Suffix – Y ORDERING INFORMATION E-Line, 3 pin,Rev Package Suffix – R SO8 Package Suffix – N8 O LE E-Line, 3 pin Package Suffix – A TE Bottom View – Pin 3 floating or connected to pin 1 Bottom View BS Bottom View – Pin 1 floating or connected to pin 3 O SOT23 Package Suffix – F Top View – Pin 1 floating or connected to pin 2 Top View Part No Tol% Package Partmark Part No Tol% Package Partmark ZRA125A03 3 E-Line • ZRA12503 ZRA125R03 3 E-Line * ZRA125R3 ZRA125A02 2 E-Line • ZRA12502 ZRA125R02 2 E-Line * ZRA125R2 ZRA125A01 1 E-Line • ZRA12501 ZRA125R01 1 E-Line * ZRA125R1 ZRA125F03 3 SOT23 12A ZRA125Y03 3 E-Line † ZRA12503 ZRA125F02 2 SOT23 12B ZRA125Y02 2 E-Line † ZRA12502 ZRA125F01 1 SOT23 12D ZRA125Y01 1 E-Line † ZRA12501 ZRA125N803 3 SO8 ZRA12503 ZRA125N802 2 SO8 ZRA12502 ZRA125N801 1 SO8 ZRA12501 * E-Line 3 pin Reversed † E-Line 2 pin • E-Line 3 pin ZRA125 ZRA125 CONNECTION DIAGRAMS Bottom View – Pin 1 floating or connected to pin 3 SOT23 Package Suffix – F Top View – Pin 1 floating or connected to pin 2 Part No Tol% Package Partmark ZRA125A03 3 E-Line • ZRA12503 ZRA125R03 3 E-Line * ZRA125R3 ZRA125A02 2 E-Line • ZRA12502 ZRA125R02 2 E-Line * ZRA125R2 ZRA125A01 1 E-Line • ZRA12501 ZRA125R01 1 E-Line * ZRA125R1 ZRA125F03 3 SOT23 12A ZRA125Y03 3 E-Line † ZRA12503 ZRA125F02 2 SOT23 12B ZRA125Y02 2 E-Line † ZRA12502 ZRA125F01 1 SOT23 12D ZRA125Y01 1 E-Line † ZRA12501 ZRA125N803 3 SO8 ZRA12503 ZRA125N802 2 SO8 ZRA12502 ZRA125N801 1 SO8 ZRA12501 Top View TE Partmark * E-Line 3 pin Reversed † E-Line 2 pin • E-Line 3 pin LE SO8 Package Suffix – N8 Tol% Package O E-Line, 3 pin Package Suffix – A Bottom View – Pin 3 floating or connected to pin 1 Part No BS Bottom View E-Line, 3 pin,Rev Package Suffix – R O E-Line, 2 pin Package Suffix – Y ORDERING INFORMATION