REF3012
REF3020
REF3025
REF3030
REF3033
REF3040
SBVS032E – MARCH 2002 – REVISED MARCH 2004
50ppm/° C Max, 50 A in SOT23-3
CMOS VOLTAGE REFERENCE
FEATURES
●MicroSIZE PACKAGE: SOT23-3
●LOW DROPOUT: 1mV
●HIGH OUTPUT CURRENT: 25mA
●HIGH ACCURACY: 0.2%
●LOW IQ: 50 A max
●EXCELLENT SPECIFIED DRIFT PERFORMANCE:
50ppm/° C (max) from 0° C to +70° C 75ppm/° C (max) from –40C° to +125° C
APPLICATIONS
●PORTABLE, BATTERY-POWERED EQUIPMENT
●DATA ACQUISITION SYSTEMS
●MEDICAL EQUIPMENT
●HAND-HELD TEST EQUIPMENT
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REF3012 |
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IN |
1 |
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REF3020 |
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REF3025 |
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REF3030 |
3 |
GND |
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REF3033 |
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OUT |
2 |
REF3040 |
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SOT23-3 |
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DESCRIPTION
The REF30xx is a precision, low power, low voltage dropout voltage reference family available in a tiny SOT23-3.
The REF30xx small size and low power consumption (50 A max) make it ideal for portable and battery-powered applications. The REF30xx does not require a load capacitor, but is stable with any capacitive load.
Unloaded, the REF30xx can be operated with supplies within 1mV of output voltage. All models are specified for the wide temperature range, –40° C to +125° C.
PRODUCT |
VOLTAGE (V) |
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REF3012 |
1.25 |
REF3020 |
2.048 |
REF3025 |
2.5 |
REF3030 |
3.0 |
REF3033 |
3.3 |
REF3040 |
4.096 |
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DROPOUT VOLTAGE vs LOAD CURRENT
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350 |
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(mV) |
300 |
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250 |
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Voltage |
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200 |
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Dropout |
150 |
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100 |
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50 |
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0 |
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0 |
5 |
10 |
15 |
20 |
25 |
30 |
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Load Current (mA) |
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. |
Copyright © 2002-2004, Texas Instruments Incorporated |
Products conform to specifications per the terms of Texas Instruments |
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standard warranty. Production processing does not necessarily include |
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testing of all parameters. |
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www.ti.com |
ABSOLUTE MAXIMUM RATINGS(1)
...................................................................Supply Voltage, V+ to V– |
7.0V |
Output Short-Circuit(2) .............................................................. |
Continuous |
Operating Temperature .................................................. |
–40° C to +125° C |
Storage Temperature ..................................................... |
–65° C to +150° C |
Junction Temperature .................................................................... |
+150° C |
Lead Temperature (soldering, 10s) ............................................... |
+300° C |
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NOTES: (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these, or any other conditions beyond those specified, is not implied.
(2) Short circuit to ground.
PACKAGE/ORDERING INFORMATION(1)
ELECTROSTATIC DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
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SPECIFIED |
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PACKAGE |
TEMPERATURE |
PACKAGE |
ORDERING |
TRANSPORT |
PRODUCT |
PACKAGE-LEAD |
DESIGNATOR |
RANGE |
MARKING |
NUMBER |
MEDIA, QUANTITY |
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REF3012 |
SO T23-3 |
DBZ |
–40° C to +125° C |
R30A |
REF3012AIDBZT |
Tape and Reel, 250 |
" |
" |
" |
" |
" |
REF3012AIDBZR |
Tape and Reel, 3000 |
REF3020 |
SOT23-3 |
DBZ |
–40° C to +125° C |
R30B |
REF3020AIDBZT |
Tape and Reel, 250 |
" |
" |
" |
" |
" |
REF3020AIDBZR |
Tape and Reel, 3000 |
REF3025 |
SOT23-3 |
DBZ |
–40° C to +125° C |
R30C |
REF3025AIDBZT |
Tape and Reel, 250 |
" |
" |
" |
" |
" |
REF3025AIDBZR |
Tape and Reel, 3000 |
REF3030 |
SOT23-3 |
DBZ |
–40° C to +125° C |
R30F |
REF3030AIDBZRT |
Tape and Reel, 250 |
" |
" |
" |
" |
" |
REF3030AIDBZR |
Tape and Reel, 3000 |
REF3033 |
SOT23-3 |
DBZ |
–40° C to +125° C |
R30D |
REF3033AIDBZT |
Tape and Reel, 250 |
" |
" |
" |
" |
" |
REF3033AIDBZR |
Tape and Reel, 3000 |
REF3040 |
SOT23-3 |
DBZ |
–40° C to +125° C |
R30E |
REF3040AIDBZT |
Tape and Reel, 250 |
" |
" |
" |
" |
" |
REF3040AIDBZR |
Tape and Reel, 3000 |
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NOTES: (1) For the most current package and ordering information, see the Package Option Addendum located at the end of this data sheet.
ELECTRICAL CHARACTERISTICS
Boldface limits apply over the specified temperature range, TA = –40° C to +125° C.
At TA = +25° C, ILOAD = 0mA, VIN = 5V, unless otherwise noted.
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REF30xx |
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PARAMETER |
CONDITIONS |
MIN |
TYP |
MAX |
UNITS |
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REF3012(1) - 1.25V
OUTPUT VOLTAGE |
VOUT |
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1.2475 |
1.25 |
1.2525 |
V |
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Initial Accuracy |
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0.2 |
% |
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NOISE |
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Output Voltage Noise |
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f = 0.1Hz to 10Hz |
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14 |
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Vp-p |
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Voltage Noise |
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f = 10Hz to 10kHz |
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42 |
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Vrms |
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LINE REGULATION |
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1.8V ≤ VIN ≤ 5.5V |
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60 |
190 |
V/V |
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REF3020 –2.048 |
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OUTPUT VOLTAGE |
VOUT |
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2.044 |
2.048 |
2.052 |
V |
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Initial Accuracy |
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0.2 |
% |
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NOISE |
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Output Voltage Noise |
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f = 0.1Hz to 10Hz |
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23 |
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Vp-p |
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Voltage Noise |
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f = 10Hz to 10kHz |
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65 |
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Vrms |
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LINE REGULATION |
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VREF + 50mV ≤ VIN ≤ 5.5V |
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110 |
290 |
V/V |
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REF3025 –2.5V |
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OUTPUT VOLTAGE |
VOUT |
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2.495 |
2.50 |
2.505 |
V |
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Initial Accuracy |
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0.2 |
% |
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NOISE |
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Output Voltage Noise |
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f = 0.1Hz to 10Hz |
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28 |
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Vp-p |
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Voltage Noise |
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f = 10Hz to 10kHz |
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80 |
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Vrms |
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LINE REGULATION |
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VREF + 50mV ≤ VIN ≤ 5.5V |
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120 |
325 |
V/V |
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2 |
REF3012, 3020, 3025, 3030, 3033, 3040 |
www.ti.com |
SBVS032E |
ELECTRICAL CHARACTERISTICS
Boldface limits apply over the specified temperature range, TA = –40° C to +125° C.
At TA = +25° C, ILOAD = 0mA, VIN = 5V, unless otherwise noted.
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REF30xx |
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PARAMETER |
CONDITIONS |
MIN |
TYP |
MAX |
UNITS |
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REF3030 –3.0V
OUTPUT VOLTAGE |
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VOUT |
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2.994 |
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3.0 |
3.006 |
V |
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Initial Accuracy |
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0.2 |
% |
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NOISE |
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Output Voltage Noise |
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f = 0.1Hz to 10Hz |
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33 |
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Vp-p |
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Voltage Noise |
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f = 10Hz to 10kHz |
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94 |
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Vrms |
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LINE REGULATION |
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VREF + 50mV ≤ |
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VIN ≤ 5.5V |
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120 |
375 |
V/V |
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REF3033 –3.3V |
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OUTPUT VOLTAGE |
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VOUT |
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3.294 |
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3.30 |
3.306 |
V |
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Initial Accuracy |
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0.2 |
% |
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NOISE |
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Output Voltage Noise |
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f = 0.1Hz to 10Hz |
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36 |
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Vp-p |
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Voltage Noise |
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f = 10Hz to 10kHz |
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105 |
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Vrms |
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LINE REGULATION |
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VREF + 50mV ≤ |
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VIN ≤ 5.5V |
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130 |
400 |
V/V |
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REF3040 –4.096V |
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OUTPUT VOLTAGE |
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VOUT |
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4.088 |
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4.096 |
4.104 |
V |
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Initial Accuracy |
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0.2 |
% |
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NOISE |
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Output Voltage Noise |
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f = 0.1Hz to 10Hz |
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45 |
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Vp-p |
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Voltage Noise |
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f = 10Hz to 10kHz |
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128 |
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Vrms |
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LINE REGULATION |
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VREF + 50mV ≤ |
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VIN ≤ 5.5V |
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160 |
410 |
V/V |
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REF3012, REF3020, REF3025, REF3030, REF3033, REF3040 |
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OUTPUT VOLTAGE TEMP DRIFT(2) |
dV |
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/dT |
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OUT |
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0° C ≤ |
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TA ≤ |
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+70°C |
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20 |
50 |
ppm/°C |
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–30°C ≤ |
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TA |
≤ |
+85°C |
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28 |
60 |
ppm/°C |
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–40°C ≤ |
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TA |
≤ |
+85°C |
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30 |
65 |
ppm/°C |
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–40° C ≤ |
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TA ≤ |
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+125° C |
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35 |
75 |
ppm/°C |
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LONG-TERM STABILITY |
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0-1000h |
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24 |
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ppm |
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1000-2000h |
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15 |
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ppm |
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LOAD REGULATION(3) |
dV |
OUT |
/dI |
LOAD |
0mA < I |
LOAD |
< 25mA, |
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3 |
100 |
V/mA |
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V |
= V |
REF |
+ 500mV(1) |
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IN |
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THERMAL HYSTERESIS(4) |
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dT |
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25 |
100 |
ppm |
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DROPOUT VOLTAGE |
VIN – VOUT |
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1 |
50 |
mV |
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SHORT-CIRCUIT CURRENT |
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ISC |
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45 |
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mA |
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TURN ON SETTLING TIME |
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to 0.1% at VIN = 5V with CL = 0 |
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120 |
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s |
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POWER SUPPLY |
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Voltage |
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V |
S |
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I |
L |
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= 0 |
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V |
REF |
+ 0.001(5) |
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5.5 |
V |
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Over Temperature |
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–40° C ≤ |
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TA ≤ |
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+125° C |
VREF + 0.05 |
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5.5 |
V |
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Quiescent Current |
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IQ |
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42 |
50 |
A |
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Over Temperature |
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–40° C ≤ |
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TA ≤ |
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+125° C |
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59 |
A |
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TEMPERATURE RANGE |
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Specified Range |
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–40 |
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+125 |
° C |
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Operating Range |
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|
|
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|
|
–40 |
|
|
+125 |
° C |
|
Storage Range |
|
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|
|
–65 |
|
|
+150 |
° C |
|
Thermal Resistance |
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SOT23-3 Surface-Mount |
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θ JC |
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110 |
|
° C/W |
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θ JA |
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|
336 |
|
° C/W |
|
NOTES: (1) Minimum supply voltage for REF3012 is 1.8V.
(2)Box Method used to determine over temperature drift.
(3)Typical value of load regulation reflects measurements using a force and sense contacts, see text Load Regulation.
(4)Thermal hysteresis procedure is explained in more detail in Applications Information section of data sheet.
(5)For IL > 0, see Typical Characteristic curves.
REF3012, 3020, 3025, 3030, 3033, 3040 |
3 |
|
SBVS032E |
www.ti.com |
TYPICAL CHARACTERISTICS
At TA = +25° C, VIN = +5V power supply, REF3025 is used for typical characteristics, unless otherwise noted.
TEMPERATURE DRIFT (0° C to +70° C)
|
50 |
|
|
45 |
|
|
40 |
|
Units |
35 |
|
30 |
||
of |
25 |
|
Number |
||
20 |
||
|
||
|
15 |
|
|
10 |
|
|
5 |
|
|
0 |
5 |
10 |
15 |
20 |
25 |
30 |
35 |
40 |
45 |
50 |
55 |
60 |
65 |
|
|
|
|
|
Drift (ppm/° C) |
|
|
|
|
|
OUTPUT VOLTAGE vs TEMPERATURE
|
2.502 |
|
|
2.500 |
|
(V) |
2.498 |
|
Voltage |
||
2.496 |
||
Output |
||
2.494 |
||
|
||
|
2.492 |
|
|
2.490 |
–40 |
–20 |
0 |
20 |
40 |
60 |
80 |
100 |
120 |
140 |
|
|
|
Temperature (° C) |
|
|
|
|
LOAD REGULATION vs TEMPERATURE
|
6 |
|
V/mA) |
5 |
|
4 |
||
( |
||
|
||
Regulation |
3 |
|
|
||
Load |
2 |
|
1 |
||
|
||
|
0 |
–40 |
–20 |
0 |
20 |
40 |
60 |
80 |
100 |
120 |
140 |
|
|
|
Temperature (° C) |
|
|
|
|
TEMPERATURE DRIFT (–40° C to +125° C)
|
100 |
|
|
90 |
|
|
80 |
|
Units |
70 |
|
60 |
||
of |
50 |
|
Number |
||
40 |
||
|
||
|
30 |
|
|
20 |
|
|
10 |
|
|
0 |
5 |
10 |
15 |
20 |
25 |
30 |
35 |
40 |
45 |
50 |
55 |
60 |
65 |
|
|
|
|
|
Drift (ppm/° C) |
|
|
|
|
|
MAXIMUM LOAD CURRENT vs TEMPERATURE
|
35 |
(mA) |
30 |
Current |
25 |
|
|
Load |
20 |
Maximum |
10 |
|
15 |
|
5 |
–40 |
–20 |
0 |
20 |
40 |
60 |
80 |
100 |
120 |
140 |
|
|
|
Temperature (° C) |
|
|
|
|
QUIESCENT CURRENT vs TEMPERATURE
|
60 |
|
50 |
|
40 |
( A) |
30 |
Q |
|
I |
|
|
20 |
|
10 |
|
0 |
–40 |
–20 |
0 |
20 |
40 |
60 |
80 |
100 |
120 |
140 |
|
|
|
Temperature (° C) |
|
|
|
|
4 |
REF3012, 3020, 3025, 3030, 3033, 3040 |
www.ti.com |
SBVS032E |
TYPICAL CHARACTERISTICS (Cont.)
At TA
Line Regulation ( V/V)
PSRR (dB)
= +25° C, VIN = +5V power supply, REF3025 is used for typical characteristics, unless otherwise noted.
|
|
|
|
LINE REGULATION vs TEMPERATURE |
|
|
|
|
|
|
|
|
|
|
OUTPUT IMPEDANCE vs FREQUENCY |
|
|
|
|
||||||||||||||||||||||||||||||||||||||||||
200 |
|
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100 |
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150 |
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(dB) |
10 |
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||||
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||
100 |
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|
Impedance |
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|||
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1 |
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||||
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||
50 |
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Output |
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|||
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|||
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0.1 |
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0 |
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–50 |
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0.01 |
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||
–40 |
–20 |
0 |
20 |
40 |
60 |
80 |
100 |
120 |
140 |
1 |
|
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|
10 |
|
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100 |
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1k |
10k |
100k |
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Temperature (° C) |
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Frequency (Hz) |
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POWER-SUPPLY REJECTION RATIO vs FREQUENCY |
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OUTPUT VOLTAGE vs SUPPLY VOLTAGE (No Load) |
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90 |
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2.500010 |
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80 |
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2.500000 |
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70 |
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(V) |
2.499990 |
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60 |
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2.499980 |
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50 |
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Voltage |
2.499970 |
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40 |
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Output |
2.499960 |
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30 |
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2.499950 |
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20 |
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2.499940 |
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10 |
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2.499930 |
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0 |
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2.499920 |
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||
1 |
10 |
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100 |
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1k |
10k |
100k |
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2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
6 |
|||||||||||||||||||||||||||||||||||
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Frequency (Hz) |
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Supply (V) |
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Output Voltage (V)
OUTPUT VOLTAGE
vs SUPPLY VOLTAGE (ILOAD = 25mA)
2.500200
2.500100
2.500000
2.499900
2.499800
2.499700
2.499600
2.499500
2.499400
2.499300
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
5.5 |
6 |
Supply (V)
Output Voltage (V)
OUTPUT VOLTAGE vs LOAD CURRENT
2.500010
2.500000
2.499990
2.499980
2.499970
2.499960
2.499950
2.499940
2.499930
0 |
5 |
10 |
15 |
20 |
25 |
30 |
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Load Current (mA) |
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|
REF3012, 3020, 3025, 3030, 3033, 3040 |
5 |
|
SBVS032E |
www.ti.com |
TYPICAL CHARACTERISTICS (Cont.)
At TA = +25° C, VIN = +5V power supply, REF3025 is used for typical characteristics, unless otherwise noted.
3V/div
1V/div
50mV/div 500mV/div
20mV/div
STEP RESPONSE, CL = 0, 3V STARTUP
VIN
VOUT
40 s/div
LINE TRANSIENT RESPONSE
VIN
VOUT
10 s/div
0-5mA LOAD TRANSIENT (CL = 0)
IL = 5mA
IL = 0mA
VOUT
5V/div
1V/div
20mV/div
20mV/div
STEP RESPONSE, CL = 0, 5V STARTUP
VIN
VOUT
10 s/div
0-1mA LOAD TRANSIENT (CL = 0)
IL = 1mA
IL = 0mA
VOUT
10 s/div
1-6mA LOAD TRANSIENT (CL =1 F)
IL = 6mA
IL = 0mA
VOUT
10 s/div |
40 s/div |
6 |
REF3012, 3020, 3025, 3030, 3033, 3040 |
www.ti.com |
SBVS032E |