REF05 +5V Precision VOLTAGE REFERENCE (Guaranteed Long-Term Stability) DESCRIPTION FEATURES The REF05 is a precision 5V voltage reference. The drift is laser trimmed to 8.5ppm/°C max over the extended industrial and military temperature range. The REF05 provides a stable 5V output that can be externally adjusted over a ±6% range with minimal effect on temperature stability. REF05 operates from a single supply with an input range of 8V to 40V with a very low current drain of 1mA, and excellent temperature stability due to an improved design. Excellent line and load regulation, low noise, low power, and low cost make the REF05 the best choice whenever a 5V voltage reference is required. The REF05 is an ideal choice for portable instrumentation, temperature transducers, A/D and D/A converters, and digital voltmeter. ● OUTPUT VOLTAGE: +5V ±0.1% max ● GUARANTEED LONG-TERM STABILITY: 25ppm/1000 hrs max ● EXCELLENT TEMPERATURE STABILITY: 8.5ppm/°C max (–55°C to +125°C) ● LOW NOISE: 10µVp-p typ (0.1Hz to 10Hz) ● EXCELLENT LINE REGULATION: 0.008%/V max ● EXCELLENT LOAD REGULATION: 0.005%/mA max ● LOW SUPPLY CURRENT: 1.4mA max ● SHORT-CIRCUIT PROTECTED ● WIDE SUPPLY RANGE: 8VDC to 40VDC ● HIGH LOAD DRIVING CAPACITY: 20mA ● PACKAGE: Hermetic TO-99 LONG TERM DRIFT OF THE AVERAGE OF 30 DEVICES 100 APPLICATIONS ● PRECISION REGULATORS ● CONSTANT CURRENT SOURCE/SINK ● DIGITAL VOLTMETERS ● A/D AND D/A CONVERTERS ● PRECISION CALIBRATION STANDARD ● TEST EQUIPMENT REF05 Drift Over Time (ppm) 80 60 40 20 0 –20 –40 –60 –80 –100 0 20 40 60 80 100 120 140 160 180 Time (Days) International Airport Industrial Park • Mailing Address: PO Box 11400 Tel: (520) 746-1111 • Twx: 910-952-1111 • Cable: BBRCORP • • Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706 Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132 © PDS-1178A 1993 Burr-Brown Corporation Printed in U.S.A. December, 1993 SPECIFICATIONS ELECTRICAL TA = +25°C and VS = +15V power supply unless otherwise noted. REF05R PARAMETER OUTPUT VOLTAGE (∆VOT) Change with Temperature(1, 2) –55°C to +125°C OUTPUT VOLTAGE DRIFT –55°C to +125°C (TCVO) REF05S CONDITIONS MIN TYP MAX MIN TYP MAX UNITS IL = 0mA 4.985 5.00 5.015 4.990 5.00 5.010 V 0.05 0.27 0.05 0.15 % (3) LONG TERM STABILITY(8) OUTPUT ADJUSTMENT RANGE RPOT = 10kΩ(6) CHANGE IN VO TEMP COEFFICIENT WITH OUTPUT ADJUSTMENT (–55°C to +125°C) RPOT = 10kΩ(6) ±3 4 15 4 8.5 ±ppm/°C 10 25 10 25 ±ppm/1K hrs ±6 ±3 0.7 ±6 % 0.7 ppm/% OUTPUT VOLTAGE NOISE 0.1Hz to 10Hz 4 10 4 10 µVp-p LINE REGULATION(4) –55°C to +125°C VIN = 8V to 33V VIN = 9V to 33V 0.006 0.009 0.010 0.015 0.006 0.009 0.010 0.015 %/V LOAD REGULATION(4) –55°C to +125°C IL = 0mA to +10mA IL = 0mA to +10mA 0.005 0.008 0.010 0.015 0.005 0.008 0.008 0.012 %/mA To ±0.1% of Final Value 5 No Load 1.0 TURN-ON SETTLING TIME QUIESCENT CURRENT LOAD CURRENT (Source) LOAD CURRENT (Sink) SHORT-CIRCUIT CURRENT (5) µs 5 1.4 1.0 1.4 mA 10 21 10 21 mA –0.3 –0.5 * * mA 30 mA VO = 0 30 POWER DISSIPATION 15 TEMPERATURE VOLTAGE OUTPUT(7) 630 630 mV TEMPERATURE COEFFICIENT OF TEMPERATURE PIN VOLTAGE 2.1 2.1 mV/°C TEMPERATURE RANGE Specification REF05R, S –55 21 +125 15 * 21 * mW °C NOTES: (1) ∆VOT is defined as the absolute difference between the maximum output and the minimum output voltage over the specified temperature range expressed |VMAX – VMIN| as a percentage of 5V: (2) ∆VOT specification applies trimmed to +5.000V or untrimmed. (3) TCVO is defined as ∆VOT divided ∆VOT = × 100 5V by the temperature range. (4) Line and load regulation specifications include the effect of self heating. (5) Sample tested. (6) 10kΩ potentiometer connected between VO and ground with wiper connected to Trim pin. See Figure 1. (7) Pin 3 is insensitive to capacitive loading. The temperature voltage will be modified by 7mV for each µA of loading. (8) Samples tested for long term stability are tested with continuous power applied. The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant any BURR-BROWN product for use in life support devices and/or systems. REF05 2 ABSOLUTE MAXIMUM RATINGS(1) PIN CONFIGURATIONS Top View Input Voltage ...................................................................................... +40V Operating Temperature M .................................................................................. –55°C to +125°C Storage Temperature Range M .................................................................................. –65°C to +150°C Output Short Circuit Duration (to Ground or VIN) ....................... Indefinite Junction Temperature ..................................................... –65°C to +150°C θJA M ......................................................................................... 150°C/W Lead Temperature (soldering, 60s) ............................................... +300°C M Package NC NC NC 8 1 7 3 5 V+ 2 6 VOUT 4 Temp Trim GND (Case) PACKAGE INFORMATION(1) MODEL PACKAGE PACKAGE DRAWING NUMBER REF05RM REF05SM Metal TO-99 Metal TO-99 001 001 NOTE: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix D of Burr-Brown IC Data Book. ORDERING INFORMATION MODEL REF05RM REF05SM VOUT AT 25°C MAX DRIFT (ppm/°C) TEMPERATURE PACKAGE 5V ±15mV 5V ±10mV ±15 ±8.5 –55°C to +125°C –55°C to +125°C Metal TO-99 Metal TO-99 PONY TAIL DRIFT PLOT Long Time Drift Plot of 30 Randomly Selected REF05s 100 80 REF05 Drift Over Tiime (ppm) 60 40 20 0 –20 –40 –60 –80 –100 0 20 40 60 80 100 Time (Days) 3 120 140 160 REF05 180 TYPICAL PERFORMANCE CURVES TA = +25°C unless otherwise noted. OUTPUT WIDEBAND NOISE vs BANDWIDTH (0.1Hz to frequency indicated) LINE REGULATION vs FREQUENCY 96 0.0003 VS = 15V TA = +25°C Line Regulation (dB) Output Noise (µVp-p) 86 100 10 76 0.003 66 0.01 56 0.031 46 0.1 36 0.31 26 1.0 16 3.1 1 6 10 100 1k 10k 100k 1M 10.0 10 100 1k Frequency (Hz) 30 Maximum Load Current (mA) 0.03 TA = 25°C VIN = 15V TA = 75°C 0.02 0.015 0.01 Device immersed in 75°C oil bath 0.005 100k 1M MAXIMUM LOAD CURRENT vs INPUT VOLTAGE 35 0 Short Circuit Protection 25 500mW Maximum Dissapation 20 15 10 TA = +25°C 5 0 –10 0 10 20 30 40 50 60 5 10 Time (s) 15 20 25 Input Voltage (V) LINE REGULATION vs SUPPLY VOLTAGE LINE REGULATION vs SUPPLY VOLTAGE 6 0.03 5 0.025 Line Regulation (%/V) Percent Change in Output Voltage (%) OUTPUT CHANGE DUE TO THERMAL SHOCK 0.025 10k Frequency (Hz) 0.035 Line Regulation (%/V) 0.001 4 3 125°C 2 85°C TA = 25°C 0.02 0.015 0.01 0.005 1 25°C –55°C 0 0 6 6.5 7 7.5 8 8.5 9 9.5 5 10 15 20 Input Voltage (V) Input Voltage (V) REF05 10 4 25 30 Line Regulation (%/V) 1k TYPICAL PERFORMANCE CURVES (CONT) TA = +25°C unless otherwise noted. NORMALIZED LOAD REGULATION (∆IL = 10mA) vs TEMPERATURE NORMALIZED LINE REGULATION vs TEMPERATURE 1.4 VIN = 15V 1.5 Line Reg (T) / Line Reg (25°C) Load Reg (T) / Load Reg (25°C) 1.6 1.4 1.3 1.2 1.1 1.0 0.9 0.8 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 0.7 0.4 0.6 –60 –40 –20 0 20 40 60 80 –60 –40 –20 100 120 140 0 Temperature (°C) 100 120 140 MAXIMUM LOAD CURRENT vs TEMPERATURE REF05 VOUT 30 5.002 Maximum Load Current (mA) 5.0015 5.001 5.0005 Volt 20 40 60 80 Temperature (°C) 5 4.9995 4.999 4.9985 25 20 VIN = 15V 15 10 5 4.998 0 4.9975 –60 –40 –20 0 20 40 60 80 –60 –40 100 120 140 –20 0 Temperature 40 60 80 100 120 140 TYPICAL TEMPERATURE VOLTAGE OUTPUT vs TEMPERATURE (REF05M) QUIESCENT CURRENT vs TEMPERATURE 1.1 Temperature Voltage Output (mV) 830 1.08 Quiescent Current (mA) 20 Temperature (°C) 1.06 VIN = 15V 1.04 1.02 1.0 780 730 680 630 VIN = 15V 580 530 480 430 0.98 –60 –40 –20 0 20 40 60 80 100 120 140 –60 –40 Temperature (°C) –20 0 20 40 60 80 Temperature (°C) 5 REF05 100 120 140 Adjustment of the output does not significantly affect the temperature performance of the device. The temperature coefficient change is approximately 0.7ppm/°C for 100mV of output adjustment. OUTPUT ADJUSTMENT The REF05 trim terminal can be used to adjust the voltage over a 5V ±150mV range. This feature allows the system designer to trim system errors by setting the reference to a voltage other than 5V, including 5.12V(1) for binary applications (see Figure 1). NOTE: (1) 20mV LSB for 8-bit applications. +15V 2 VIN VOUT 2 VIN 6 3 Trim Temp 6 REF05 REF05 3 VO Output 5 RPOT 10kΩ (Optional) GND Temp Trim 5 R GND 4 4 IOUT = 5.0V + 1mA R IOUT Voltage Compliance: –25V to +8V +5V Reference with Trimmed Output FIGURE 4. Current Source. FIGURE 1. +18V VO+ +2.5V 5V 2 2 VIN VIN REF05 VO 6 R1 5.6kΩ REF05 VREF GND 4 GND 4 R2 5.6kΩ –18V 7 6 FIGURE 2. Burn-In Circuit. OPA177 2 3 4 TYPICAL APPLICATIONS VO– –2.5V VO+ = 2 VIN 0.1µF VO 6 R1 (V ) R1 + R2 REF VO– = –9V R2 (V ) R1 + R2 REF FIGURE 5. ±2.5V Precision Reference. –5V REF05 IOUT 10kΩ 3 Temp Trim 5 GND 4 2 VIN 10kΩ VO 6 REF05 +15V 5kΩ OPA177 3 Temp Trim R GND 4 –5V –15V –15V IOUT = 5.0V + 1mA R Voltage Compliance: –8V to +25V FIGURE 3. ±5V Precision Reference. REF05 5 FIGURE 6. Current Sink. 6