LTC1443 LINER [Linear Technology], LTC1443 Datasheet
LTC1443
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LTC1443 Summary of contents
Page 1
... The LTC 1443/LTC1444/LTC1445 are ultralow power quad comparators with a built-in reference. The comparators feature less than 8.5 A supply current over temperature, an internal reference (1.182V 1% for LTC1443 or 1.221V 1% for LTC1444/LTC1445), programmable hysteresis (LTC1444/LTC1445) and TTL/CMOS output (LTC1443/ LTC1445) that sinks and sources current (open-drain output for LTC1444) ...
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... GND, GND – HYST ................. (V + 0.3V REF .................................. (V + 0.3V OUT (LTC1443) ............. (V + 0.3V) to (GND – 0.3V) OUT (LTC1444/LTC1445) + ......................................... (V + 0.3V Storage Temperature Range ................. – 150 C Lead Temperature Range (Soldering, 10 sec)....... 300 C U PACKAGE/ORDER I FOR ATIO TOP VIEW OUT OUT C OUT A ...
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... –1.3V 11V 100Hz to 100kHz LTC1444/LTC1445 Overdrive = 10mV 100pF OUT Overdrive = 100mV 100pF OUT I = – 10mA, LTC1443/LTC1445 0.8mA; LTC1443 0.8mA; LTC1444/LTC1445 O No Load, LTC1443 C Temp Range I Temp Range No Load, LTC1444/ C Temp Range LTC1445 I Temp Range V 1mV REF V 2 ...
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... Comparator Output Voltage High vs Load Current 5 4 LOAD CURRENT (mA) LTC1443/44/45 • TPC08 Supply Current vs Temperature 5.8 + – (IN + 100mV) – GND (LTC1443) 5 5.0 – 4 – – – 3.8 3.4 3.0 3.0 –60 –40 – TEMPERATURE ( C) LTC1443 Reference Output Voltage vs Output Load Current 1 ...
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... SUPPLY VOLTAGE (V) Comparator Response Time vs Load Capacitance PHL PLH 100 40 LOAD CAPACITANCE (nF) LTC1443/44/45 • TPC14 Comparator Response Time at Low Supply Voltage 10000 1000 20mV OVERDRIVE 100 10 100mV OVERDRIVE 1 1 1.1 1.2 1.3 1.4 1.5 1.6 SUPPLY VOLTAGE (V) LTC1443/44/45 • TPC16 + LTC1443/44/45 • ...
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... REF OUT B (Pin 1): Comparator B Output. (Open-drain output for LTC1444). Output can source up to 40mA (LTC1443, LTC1445) and sink 5mA. OUT A (Pin 2): Comparator A Output. (Open-drain output for LTC1444). Output can source up to 40mA (LTC1443, LTC1445) and sink 5mA (Pin 3): Positive Supply. – ...
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... V to assure TTL compatibility with a split supply. The LTC1444 and LTC1445 outputs swing between V The outputs are capable of sourcing up to 40mA (LTC1443/ LTC1445) and sinking up to 5mA while still maintaining microampere quiescent currents. The output stage does not generate crowbar switching currents during transi- OUT C (Pin 16): Comparator C Output ...
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... LTC1443/44/45 • F03 REF I REF R1 LTC1445 14 HYST LTC1443/44/45 • F04 Figure 4. Programmable Hysteresis ) is equal to twice the HB range from 0 REF (mV REF 2ms/DIV LTC1443/1444/1445 • TA02 + Figure 3b. V Glitching Response V HB (2)(I ) REF V HB 1.221V – REF ...
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... 430 9 2. 1.0 F LTC1443/44/45 • F05 Figure 5. Glitch-Free Level Detector with Hysteresis 4. Choose the values for R3 and R4 to set the hysteresis 2.4M R3 Choose the values for R1 and R2 to set the trip point Using the same equations, R6 and R7 are 1.82M and 1.21M respectfully to set the trip level at 3V for V2 ...
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... LTC1443/LTC1444/LTC1445 PACKAGE DESCRIPTIO 0.300 – 0.325 (7.620 – 8.255) 0.009 – 0.015 (0.229 – 0.381) +0.035 0.325 –0.015 +0.889 8.255 –0.381 *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm Dimensions in inches (millimeters) unless otherwise noted. ...
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... DWG # 05-08-1610 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 LTC1443/LTC1444/LTC1445 0.386 – 0.394* (9.804 – 10.008 0.150 – 0.157** (3.810 – 3.988 ...
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... – 1/4 LTC1444 12 – C4 0.22 F LTC1443/44/45 • F06 COMMENTS 1.2V or 2.5V with 7V Auxiliary Reference 17 A Max per Amplifier SO-8 Package, Auto Shutdown to 1nA 800nA Operating Current, 0.05% Accuracy 2.8 A Typical Quiescent Current 1.5 A Max per Amplifier 12 A Quiescent Current 10 A Operating Current, 0.05% Accuracy 144345fa LT/TP 0100 2K REV A • PRINTED IN USA ...