LTC1440 LINER [Linear Technology], LTC1440 Datasheet
LTC1440
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LTC1440 Summary of contents
Page 1
... The comparator output stage can continuously source up to 40mA. By eliminating the cross-conducting current that normally happens when the comparator changes logic states, the power supply glitches are eliminated. The LTC1440 is available in 8-pin PDIP, SO and MSOP packages. The LTC1441/LTC1442 are available in 8-pin PDIP and SO packages. 8 OUT ...
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... S8 PART MARKING 8-LEAD PDIP 1441 T = 150 C, JMAX T = 150 C, 1441I JMAX + – 5V GND = 0V, T CONDITIONS + – 80mV HYST = REF (LTC1440/LTC1442) + 5.5V) ...... Continuous ORDER PART NUMBER TOP VIEW LTC1440CMS8 8 OUT + REF 5 HYST MS8 PACKAGE MS8 PART MARKING = 150 C, = 250 LTBX ...
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... C = 100pF Overdrive = 10mV OUT Overdrive = 100mV I = – 13mA 1.8mA LTC1440 O LTC1441/LTC1442 No Load C Temp Range LTC1440/LTC1442 I Temp Range No Load LTC1440 (MSOP) C Temp Range V 1mV (LTC1442) REF V 2.5mV (LTC1442) REF 0 I 2mA (LTC1440) SOURCE (LTC1440) SINK 100Hz to 100kHz + – ...
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... SUPPLY VOLTAGE (V) 1440/1/2 G04 4 + – 3V GND = 0V, T CONDITIONS No Load C Temp Range LTC1440/LTC1442 I Temp Range No Load LTC1440 (MSOP) C Temp Range V 1mV (LTC1442) REF V 2.5mV (LTC1442) REF 0 I 1mA (LTC1440) SOURCE (LTC1440) SINK 100Hz to 100kHz Comparator Response Time vs Input Overdrives ...
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... G10 1.186 = 2V CC 1.184 1.182 1.180 1.178 1.176 1.174 1.172 1.170 1440/1/2 G12 LTC1440/LTC1442 Hysteresis Control 80 60 OUTPUT HIGH OUTPUT LOW –20 –40 –60 – – V (mV) REF HYST 1440/1/2 G08 ...
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... – REF – HYST LTC1440 GND (Pin 1): Ground. Connect to V operation. – V (Pin 2): Negative Supply. Connect to ground for single supply operation. Potential should be more negative than GND (Pin 3): Noninverting Comparator Input. Input com- – + mon mode range from typically 10pA ...
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... Power Supplies The comparator family operates from a single 2V to 11V supply. The LTC1440 includes a separate ground for the comparator output stage, allowing a split supply ranging – from 1V to 5.5V. Connecting V to GND on the LTC1440 will allow single supply operation ...
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... LTC1440 GND 1 1440/1/2 F03a Level Detector The LTC1440 is ideal for use as a micropower level detector as shown in Figure 5. R1 and R2 form a voltage divider from V and R4 set the hysteresis voltage, and R5 and C1 bypass the reference output. The following design procedure can be used to select the component values: 1 ...
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... Low Battery Detect Operates Down to 1.5V 7 2-CELL + V 2.6M NiCd + – – 6 REF 20k 5 HYST GND 1. 182 LTC1440 8 OUT + V – V 1440 TA06 2 9 ...
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... LTC1440/LTC1441/LTC1442 U TYPICAL APPLICATIONS 100k ® LT 1034 1.2V + 365k* 1/2 LTC1441 2N3809 – 1N914 0.033 F POLYSTYRENE 150k 10M *TRW-IRC MRT–5/+120ppm 10-Bit 30 A A/D Converter 32.768kHz 1M 5V 470k + C2 1/2 LTC1441 – 1.2M 10pF C1 VN2222LL Q Q 74C74 74C00 D CLK CONV COMMAND 32.768kHz “Watch Crystal” Oscillator 32 ...
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... Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. LTC1440/LTC1441/LTC1442 U Dimensions in inches (millimeters) unless otherwise noted. ...
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... LTC1440/LTC1441/LTC1442 U TYPICAL APPLICATION 10kHz TRIM 200k 1.2M* INPUT 0.01 F 100k = HP5082-2810 = 1N4148 Q5 = 2N2222 = 1% METAL FILM * = POLYSTYRENE ** Q6 RELATED PARTS PART NUMBER DESCRIPTION LT1178/LT1179 Dual/Quad 17 A Precision Single Supply Op Amps LT1351 Single 250 A, 3MHz, 200V Amp with Shutdown LT1352/LT1353 Dual/Quad 250 A, 3MHz, 200V Amps ...