LT1021 LINER [Linear Technology], LT1021 Datasheet
LT1021
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LT1021 Summary of contents
Page 1
... Special care has been taken to mini- mize thermal regulation effects and temperature induced hysteresis. The LT1021 references are based on a buried zener diode structure that eliminates noise and stability problems associated with surface breakdown devices. Further, a subsurface zener exhibits better temperature drift and time stability than even the best bandgap references ...
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... V IN OUT 5 3 TRIM ** NC* 4 GND H PACKAGE 8-LEAD TO-5 METAL CAN * CONNECTED INTERNALLY. D0 NOT CONNECT EXTERNAL CIRCUITRY TO THESE PINS ** NO TRIM PIN ON LT1021-7. DO NOT CONNECT EXTERNAL CIRCUITRY TO PIN 5 ON LT1021 150 C, = 150 C/ C/W JMAX (Note 1) Output Short-Circuit Duration V = 35V ......................................................... 10 sec ...
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... LT1021B-7 LT1021D-7 8.5V V 12V IN 12V V 40V 10mA OUT (Note 4) 1.2mA I 10mA SHUNT (Notes Open IN 0.1Hz f 10Hz 10Hz f 1kHz t = 1000Hrs Noncumulative LT1021 LT1021-5 MIN TYP MAX UNITS 4.9975 5.000 5.0025 V 4.9500 5.000 5.0500 ppm ppm ppm/V ...
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... N and 150 C/W for the SO-8. 4 The denotes specifications that apply over the full operating temperature = 15V unless otherwise noted. IN OUT CONDITIONS LT1021C-10 LT1021B-10/LT1021D- MIN J MAX LT1021B-10 LT1021C-10/LT1021D-10 11.5V V 14.5V IN 14.5V V 40V 10mA OUT (Note 4) 1.7mA I 10mA SHUNT (Notes Open IN ...
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... LT1021 G02 Output Voltage Noise Spectrum 400 350 300 V OUT 250 200 150 LT1021-10 LT1021-7 100 LT1021 100 FREQUENCY (Hz) LT1021 G05 Load Regulation LT1021 –1 – 2 – 3 – 4 – 5 125 – 8 – 6 – –10 – ...
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... I = 10mA LOAD TIME (ms) LT1021 G11 Output Noise 0.1Hz to 10Hz LT1021-5 FILTERING = 1 ZERO AT 0.1Hz 2 POLES AT 10Hz 5 V (1ppm) P TIME (MINUTES) LT1021 G14 Quiescent Current LT1021-7 1 OUT 1.6 1.4 1 – 1 0 125 C J 0.6 0.4 0 ...
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... TIME (ms) *INDEPENDENT OF TEMPERATURE COEFFICIENT LT1021 G20 Output Noise 0.1Hz to 10Hz LT1021-7 FILTERING = 1 ZERO AT 0.1Hz 2 POLES AT 10Hz 5 V (0.7ppm) = 1mA P TIME (MINUTES) LT1021 G23 Input Supply Current LT1021-10 1 OUT T = – 1 125 C J 1.0 0.8 0.6 0.4 0.2 0 ...
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... SOURCE I = 2-10mA SINK I = 100 100 A SOURCE P-P SINK TIME ( s) NOTE VERTICAL SCALE CHANGE BETWEEN SOURCING AND SINKING Thermal Regulation LT1021- 30V IN POWER = 200mW LOAD 0 REGULATION – 0.5 –1.0 THERMAL REGULATION* –1 10mA LOAD TIME (ms) ...
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... LT1021 AI01 LT1021-7 The 7V version of the LT1021 has no trim pin because the internal architecture does not have a point which could be driven conveniently from the output. Trimming must therefore be done externally the case with ordinary reference diodes. Unlike these diodes, however, the out- with a put of the LT1021 can be loaded with a trim potentiometer ...
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... In series mode operation, the ground pin of the LT1021 carries only 1mA and can be used as a sense line, greatly reducing ground loop and loss problems on the low side of the reference. The high side supplies load ...
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... APPLICATIONS INFORMATION Effects of Air Movement on Low Frequency Noise The LT1021 has very low noise because of the buried zener used in its design. In the 0.1Hz to 10Hz band, peak-to-peak noise is about 0.5ppm of the DC output. To achieve this low noise, however, care must be taken to shield the reference from ambient air turbulence ...
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... REF 1021 TA13 R3 4.02K 1% R4* 100 FB FULL-SCALE 30pF ADJUST I – OUT 10V LT1007C F. LT1236 TA15 Ultraprecise Current Source LT1021-7 15V IN OUT 17.4k GND 1% TRIM 100 15V 7 2 – 6 LT1001 –15V I OUT REGULATION < 1ppm/V COMPLIANCE = –13V TO 7V Operating 5V Reference from 5V Supply ...
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... GND TYPICAL LOAD R L CURRENT = 30mA 1021 TA08 * SELECT R1 TO DELIVER TYPICAL LOAD CURRENT. LT1021 WILL THEN SOURCE OR SINK AS NECESSARY TO MAINTAIN PROPER OUTPUT. DO NOT REMOVE LOAD AS OUTPUT WILL BE DRIVEN UNREGULATED HIGH. LINE REGULATION IS DEGRADED IN THIS APPLICATION 1mA) LOAD 27 1021 TA14 13 ...
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... FEEDBACK LINEARIZES OUTPUT TO 0.005 C FROM * – 150 C WIREWOUND RESISTORS WITH LOW TC ** INPUT – 6.3V Q2 R14 5k R15 10k R12 1k R13 24. =100mV/ C OUT – 150 C = 0.00385 = 10V AT 100 1021 TA10 OUTPUT R1 R2 GND LT1021 ES ...
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... PLANE (12.700 – 19.050) 0.200 (5.080) TYP 0.016 – 0.024 (0.406 – 0.610) H8(TO-5) 0.200 PCD 1197 0.400* (10.160) MAX 0.130 0.005 (3.302 0.127) 0.125 0.020 (3.175) MIN (0.508) MIN 0.018 0.003 (0.457 0.076) N8 1098 LT1021 15 ...
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... LT1021 PACKAGE DESCRIPTION 0.010 – 0.020 (0.254 – 0.508) 0.008 – 0.010 (0.203 – 0.254) 0.016 – 0.050 0.406 – 1.270 * DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE ** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" ...