LT1490 Linear Technology Corporation, LT1490 Datasheet
LT1490
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LT1490 Summary of contents
Page 1
... A of quiescent current per amplifier. These amplifiers are reverse supply protected; they draw no current for reverse supply up to 18V. The input range of the LT1490/ LT1491 includes both supplies and the output swings to both supplies. Unlike most micropower op amps, the LT1490/ LT1491 can drive heavy loads ...
Page 2
... Input Bias Current B Input Noise Voltage 2 U (Note 1) Junction Temperature ........................................... 150 C Specified Temperature Range (Note 3) .. – Storage Temperature Range ................. – 150 C Lead Temperature (Soldering, 10 sec).................. 300 (For new designs, use the LT1490A or LT1491A) ORDER PART NUMBER LT1490CMS8 OUT A 1 – LT1490CN8 + LT1490CS8 ...
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... V = 5V, Short to GND 5V, Short 2.5V to 12.5V – 100 A per Amplifier 1kHz – – – LT1490/LT1491 = half supply, unless otherwise noted. (Note 3) OUT MIN TYP MAX 200 1500 133 100 400 1500 250 200 22 50 250 450 22 50 250 500 330 500 2 ...
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... This depends on the power supply voltage and how many amplifiers are shorted. Note 3: The LT1490C/LT1491C are guaranteed to meet specified performance from The LT1490C/LT1491C are designed, characterized and expected to meet specified performance from – but are not tested or QA sampled at these temperatures. ...
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... A 0 – 0.01 0.001 0.01 0 SINKING LOAD CURRENT (mA) 1490/90 G05 Noise Voltage Density vs Frequency 100 1k FREQUENCY (Hz) 1490/91 G08 LT1490/LT1491 Input Bias Current vs Common Mode Voltage 6000 4000 2000 – 125 C A –10 4.0 4.4 4.8 5.2 5.6 44 COMMON MODE VOLTAGE (V) ...
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... LT1490/LT1491 W U TYPICAL PERFOR A CE CHARACTERISTICS Gain and Phase Shift vs Frequency 2. PHASE GAIN 10 0 –10 –20 – 100 1000 FREQUENCY (kHz) 1490/91 G10 Gain Bandwidth Product and Phase Margin vs Supply Voltage 250 240 PHASE MARGIN 230 220 210 200 GAIN BANDWIDTH ...
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... AT 1kHz 0.5V TO 2. 0.2V TO 2.2V IN 0.001 10 0 LOAD RESISTANCE TO GROUND (k ) Large-Signal Response V = 15V –1 V LT1490/LT1491 Capacitive Load Handling, Overshoot vs Capacitive Load 100 170 A SOURCE – 100 1000 CAPACITIVE LOAD (pF) 1490/91 F20 Total Harmonic Distortion + Noise vs Output Voltage 10 R ...
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... In mance curves. When monitoring voltages within 100mV of either rail, gain should be taken to keep the output from clipping. The output of the LT1490/LT1491 can be pulled up to 18V beyond V + that V is less than 0.5V. The normally reverse-biased substrate diode from the ...
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... U U APPLICATIO S I FOR ATIO Gain The open-loop gain is almost independent of load when the output is sourcing current. This optimizes perfor- U TYPICAL APPLICATIO S Square Wave Oscillator 59k 5V 100k + 1/2 LT1490 100k – R 50k C 1490/91 TA02 0 2RC WITH 5V SUPPLY OUT P 200 5V 50k 1nF ...
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... LT1490/LT1491 PACKAGE DESCRIPTIO 0.007 0 – 6 TYP (0.18) 0.021 0.006 (0.53 0.015) * DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE ** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE 0.300 – ...
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... DWG # 05-08-1610) 0.337 – 0.344* (8.560 – 8.738 0.228 – 0.244 (5.791 – 6.197 0.053 – 0.069 (1.346 – 1.752) 0 – 8 TYP 0.014 – 0.019 (0.355 – 0.483) TYP LT1490/LT1491 0.770* (19.558) MAX 0.065 (1.651) TYP 0.018 0.003 (0.457 0.076) ...
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... Q2 R21 150 C6 0.033 F R20 –180V 100k 1490/1491 TA03 , 100nV/ C, 1MHz GBW, OS(MAX) TM Operation , 500V/ 400kHz GBW OS(MAX) VOL(MIN) , Improved Version of the LT1490/LT1491 OS(MAX) 14901fb LT/LCG 0600 2K REV B • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1996 R26 2k OPTO1 TEN PHONES OS(MAX) OS(MAX) ...