LTC1444 LINER [Linear Technology], LTC1444 Datasheet
LTC1444
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LTC1444 Summary of contents
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FEATURES ■ Ultralow Quiescent Current: 2.1 µ ■ Reference Output Drives 0.01 ■ Adjustable Hysteresis (LTC1440/LTC1442) ■ Wide Supply Range: Single 11V Dual: ±1V to ±5.5V ■ Input Voltage Range Includes the Negative Supply ■ TTL/CMOS Compatible Outputs ...
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LTC1440/LTC1441/LTC1442 ABSOLUTE MAXIMUM (Note 1) Voltage + – GND, GND – HYST ................. (V + 0.3V REF ................................... (V ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER Power Supply + V Supply Voltage Range I Supply Current CC Comparator V Comparator Input Offset Voltage OS + – I Input Leakage Current ( ...
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LTC1440/LTC1441/LTC1442 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER Power Supply + V Supply Voltage Range I Supply Current CC Comparator V Comparator Input Offset Voltage OS + – I Input Leakage Current ( ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS Comparator Response Time vs Input Overdrive 25° 100mV 3 50mV 100 – RESPONSE TIME (µs) Comparator Short-Circuit Sink Current vs ...
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LTC1440/LTC1441/LTC1442 W U TYPICAL PERFOR A CE CHARACTERISTICS Comparator Response Time vs Load Capacitance with 100mV Input Overdrive PHL PLH LOAD CAPACITANCE (nF) 6 10000 1000 80 100 ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS Comparator Output Voltage Low vs Load Current 2 25° 1.5 1.0 0 LOAD CURRENT ...
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LTC1440/LTC1441/LTC1442 W U TYPICAL PERFOR A CE CHARACTERISTICS Reference Output Voltage vs Output Load Current 1.190 1.185 1.180 1.175 1.170 1.165 1.160 1.155 0 1.5 2.0 0.5 1.0 OUTPUT LOAD CURRENT (mA) 8 SOURCE 2.5 3.0 ...
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PIN FUNCTIONS 1 LTC1440 8 OUT GND – REF – – HYST LTC1440 GND (Pin 1): Ground. Connect to V operation. – V (Pin ...
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LTC1440/LTC1441/LTC1442 U U APPLICATIONS INFORMATION LTC1440/LTC1441/LTC1442 are a family of micropower comparators with built-in 1.182V reference. Features include programmable hysteresis (LTC1440/LTC1442), wide supply voltage range (2V to 11V) and the ability of the reference to drive 0.01µF ...
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U U APPLICATIONS INFORMATION + – – HYST 10k 6 REF R3 R1 – 2.4M 430Ω 1µF Figure 3a. Reference Transient Response Test Circuit ...
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LTC1440/LTC1441/LTC1442 U U APPLICATIONS INFORMATION 2. Calculate the required resistive divider ratio. Ratio = REF IN Ratio = 1.182V/4.65V = 0.254 3. Choose the required hysteresis voltage band at the input this example 60mV. ...
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U TYPICAL APPLICATIONS 100k ® LT 1034 1.2V + 365k* 1/2 LTC1441 2N3809 – 1N914 0.033µF POLYSTYRENE 150k 10M *TRW-IRC MRT–5/+120ppm/°C Low Battery Detect Operates Down to 1.5V 2-CELL 2.6M NiCd + 3 IN ...
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LTC1440/LTC1441/LTC1442 PACKAGE DESCRIPTIO 3.5 ±0.05 1.65 ±0.05 2.15 ±0.05 (2 SIDES) 0.25 ± 0.05 0.50 BSC 2.38 ±0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS 5.23 (.206) MIN 0.42 ± 0.038 (.0165 ± .0015) TYP RECOMMENDED SOLDER PAD LAYOUT ...
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PACKAGE DESCRIPTION .300 – .325 (7.620 – 8.255) .008 – .015 (0.203 – 0.381) +.035 .325 –.015 ( +0.889 8.255 –0.381 NOTE: 1. DIMENSIONS ARE *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT ...
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... POLYSTYRENE ** Q6 RELATED PARTS PART NUMBER DESCRIPTION LTC1443 1.182V Reference with Micropower Quad Comparators LTC1444/LTC1445 1.2V Reference with Quad Comparator with Adjustable Hysteresis LTC1540 1.182V Reference with Nanopower Comparator with Adjustable Hysteresis LTC1541 1.2V Reference with Micropower Amplifier and Comparator LTC1842/LTC1843 1.82V Reference with Dual Comparators ...