ADR390 Analog Devices, ADR390 Datasheet
ADR390
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ADR390 Summary of contents
Page 1
... GENERAL DESCRIPTION The ADR390 and ADR391 are precision 2.048 V and 2.5 V bandgap voltage references featuring high accuracy and stability and low power consumption in a tiny footprint. Patented tempera- ture drift curvature correction techniques minimize nonlinearity of the voltage change with temperature. The wide operating range and low power consumption with additional shutdown capability make them ideal for battery-powered applications ...
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... ADR390/ADR391 ADR390 SPECIFICATIONS ELECTRICAL CHARACTERISTICS Parameter Initial Accuracy Initial Accuracy Error Temperature Coefficient Minimum Supply Voltage Headroom Line Regulation Load Regulation Quiescent Current Voltage Noise Turn-On Settling Time 1 Long-Term Stability 2 Output Voltage Hysteresis Ripple Rejection Ratio Short Circuit to GND Shutdown Supply Current ...
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... Hours O V OHYS RRR SHDN I LOGIC V INL V INH at 25°C after 1000 hours at 125°C; ∆ ((V –V )/V OHYS O OTC O ADR390/ADR391 Min Typ Max 2.494 2.5 2.506 0.24 0. 300 100 120 140 500 0.8 2.4 ) × – ...
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... Output Short-Circuit Duration to GND Observe Derating Curves Storage Temperature Range RT Package . . . . . . . . . . . . . . . . . . . . . . . –65°C to +150°C Operating Temperature Range ADR390/ADR391 . . . . . . . . . . . . . . . . . . . –40°C to +85°C Junction Temperature Range RT Package . . . . . . . . . . . . . . . . . . . . . . . –65°C to +150°C Lead Temperature Range (Soldering, 60 sec 300°C Stresses above those listed under Absolute Maximum Ratings may cause perma- nent damage to the device. This is a stress rating only ...
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... I = 0mA TO 5mA 0mA TO 5mA 12.5 15.0 40 ADR390/ADR391 + 5.0 7.5 10.0 12.5 15.0 INPUT VOLTAGE – 3. 5. TEMPERATURE – 3. 5. TEMPERATURE – C ...
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... ADR390/ADR391 2.5V TO 15V TEMPERATURE – 2.8V TO 15V TEMPERATURE – C 0.8 0 0.4 0 LOAD CURRENT – mA 0.8 0.6 0 0.56 +85 C ...
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... INTERRUPTION OUT 10k TIME – 10 s/DIV LINE INTERRUPTION OUT TIME – 10 s/DIV OUT LOAD TIME – 200 s/DIV ADR390/ADR391 BYPASS 0.5V/DIV 1V/DIV C = 0.1 F BYPASS 0.5V/DIV 1V/DIV C = 0nF L LOAD OFF ...
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... ADR390/ADR391 OUT LOAD OFF LOAD TIME – 200 s/DIV OUT LOAD OFF LOAD TIME – 200 s/DIV 15V IN 0 5V/DIV 2V/DIV V OUT TIME – 20 s/DIV 1nF V = 15V ...
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... JA 1M Shutdown Mode Operation The ADR390/ADR391 includes a shutdown feature that is TTL/ CMOS level compatible. A logic LOW or a zero volt condition on the SHDN pin is required to turn the device off. During shutdown, the output of the reference becomes a high impedance state where its potential would then be determined by external circuitry ...
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... ADR390/ADR391 APPLICATIONS Membrane Switch Controlled Power Supply The ADR390/ADR391 can operate as a low dropout power supply in hand-held instrumentation. In the following circuit, a membrane ON/OFF switch is used to control the operation of the reference. During an initial power-on condition, the SHDN pin is held to GND. Recall that this condition disables the output (read: three-state) ...
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... ADR390/ADR391. The series pass transis- tor Q1 provides load current. The ADR390/ADR391 delivers only the base drive to Q1 through the force pin. The sense pin of the ADR390/ADR391 is a regulated output and is connected to the load. +5V 100 ...
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... ADR390/ADR391 0.0669 (1.70) 0.0590 (1.50) 0.0512 (1.30) 0.0354 (0.90) OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 5-Lead SOT-23 (RT Suffix) 0.1181 (3.00) 0.1102 (2.80 0.1181 (3.00) 0.1024 (2.60 PIN 1 0.0374 (0.95) BSC 0.0748 (1.90) BSC 0.0571 (1.45) 0.0374 (0.95) 10 SEATING 0.0197 (0.50) 0.0059 (0.15) 0 PLANE 0.0138 (0.35) 0.0019 (0.05) 0.0079 (0.20) 0.0031 (0.08) 0.0217 (0.55) 0.0138 (0.35) ...