lt1720is8-trpbf Linear Technology Corporation, lt1720is8-trpbf Datasheet
lt1720is8-trpbf
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lt1720is8-trpbf Summary of contents
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... The LT1720/LT1721 are ideal for systems where small size and low power are paramount. , LTC and LT are registered trademarks of Linear Technology Corporation. UltraFast is a trademark of Linear Technology Corporation ...
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... ORDER PART NUMBER LT1720CDD +IN A –IN A LT1720IDD – PART MARKING* T LAAV ORDER PART NUMBER –IN A +IN A LT1720CS8 GND LT1720IS8 OUT A OUT B GND + –IN B PART MARKING GN PACKAGE 16-LEAD NARROW 1720 PLASTIC SSOP 1720I T JMAX T JMAX The denotes specifications that apply over the full operating temperature = 25 C ...
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ELECTRICAL CHARACTERISTICS range, otherwise specifications are at T SYMBOL PARAMETER V Common Mode Voltage Range CMR + V Input Trip Points TRIP – V Input Trip Points TRIP V Input Offset Voltage OS V Input Hysteresis Voltage HYST V / ...
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LT1720/LT1721 W U TYPICAL PERFORMANCE CHARACTERISTICS Input Offset and Trip Voltages vs Supply Voltage TRIP –1 – V TRIP – –3 2.5 4.0 4.5 5.0 5.5 ...
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W U TYPICAL PERFORMANCE CHARACTERISTICS Output Low Voltage vs Load Current 0 – 15mV 125 C IN 0.4 125 2. 0.3 – ...
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LT1720/LT1721 TEST CIRCUITS 15V P-P BANDWIDTH-LIMITED TRIANGLE WAVE ~ 1kHz V CC 0.1 F 50k + 50 50 – 200k DUT 1/2 LT1720 1/4 LT1721 1/2 LT1638 + 100k 100k – + 100k – 100k 1/2 LT1638 ...
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U U APPLICATIONS INFORMATION Input Voltage Considerations The LT1720/LT1721 are specified for a common mode range of –100mV to 3.8V when used with a single 5V supply. In general the common mode range is 100mV below ground to 1.2V below ...
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LT1720/LT1721 U U APPLICATIONS INFORMATION High Speed Design Considerations Application of high speed comparators is often plagued by oscillations. The LT1720/LT1721 have 4mV of internal hysteresis, which will prevent oscillations as long as parasitic output to input feedback is kept ...
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U U APPLICATIONS INFORMATION The exact amount of hysteresis will vary from part to part as indicated in the specifications table. The hysteresis level will also vary slightly with changes in supply voltage and common mode voltage. A key advantage ...
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LT1720/LT1721 U U APPLICATIONS INFORMATION Interfacing the LT1720/LT1721 to ECL The LT1720/LT1721 comparators can be used in high speed applications where Emitter-Coupled Logic (ECL) is deployed. To interface the outputs of the LT1720/LT1721 to ECL logic inputs, standard TTL/CMOS to ...
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U U APPLICATIONS INFORMATION 5V 180 LSTTL 270 820 (a) STANDARD TTL TO PECL TRANSLATOR R1 1/2 LT1720 (b) LT1720/LT1721 OUTPUT TO PECL TRANSLATOR 3V 1/2 LT1720 R4 (c) 3V LT1720/LT1721 OUTPUT TO PECL TRANSLATOR 1/2 LT1720 ...
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LT1720/LT1721 U U APPLICATIONS INFORMATION Circuit Description The block diagram of one comparator in the LT1720/LT1721 is shown in Figure 6. There are differential inputs (+ IN/– IN), an output (OUT), a single positive supply (V and ground (GND). All ...
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U U APPLICATIONS INFORMATION Speed Limits The LT1720/LT1721 comparators are intended for high speed applications, where it is important to understand a few limitations. These limitations can roughly be divided into three categories: input speed limits, output speed limits, and ...
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LT1720/LT1721 U U APPLICATIONS INFORMATION fast enough that the absolute dispersion of 2.5ns (= 7 – 4.5) is often small enough to ignore. The gain and hysteresis stage of the LT1720/LT1721 is simple, short and high speed to help prevent ...
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U U APPLICATIONS INFORMATION 1000 800 600 400 200 0 2.5 3.0 3.5 4.0 4.5 SUPPLY VOLTAGE (V) Figure 8. Timing Skew of Figure 7’s Circuit applications. This circuit works well because of the two matched delays and rail-to-rail style ...
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LT1720/LT1721 U U APPLICATIONS INFORMATION Timing Skews For a number of reasons, the LT1720/LT1721’s superior timing specifications make them an excellent choice for applications requiring accurate differential timing skew. The comparators in a single package are inherently well matched, with ...
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U U APPLICATIONS INFORMATION DELAY DETECTOR + Y U1A 1/4 LT1721 51 * – R8* 4.53k R9 5V 0.1 F 487 * – U1B 1/4 LT1721 + RESULT ...
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LT1720/LT1721 U U APPLICATIONS INFORMATION Optional Logarithmic Pulse Stretcher The fourth comparator of the quad LT1721 can be put to work as a logarithmic pulse stretcher. This simple circuit can help tremendously if you don’t have a fast enough oscilloscope ...
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U U APPLICATIONS INFORMATION MEASURED 4 EQUATION 100 1000 t (ns) PULSE Figure 14. Log Pulse Stretcher Output Pulse vs Input Pulse NANOSECOND INPUT RANGE 1 FOOT CABLE CIRCUIT OF ...
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LT1720/LT1721 U U APPLICATIONS INFORMATION INPUT 909 + U1A 1/4 LT1721 – V REF 100mV FULL SCALE = 1N5711 = CA3039 DIODE ARRAY (SUBSTRATE TO – 5V) 1.5k 3.6k 0 1/2 LT1720 IN – SKEW 2k COMP ...
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U U APPLICATIONS INFORMATION and 100 V/ C baseline uncertainty. Switching delay is less than 15ns and the minimum sampling window width for full power response is 30ns. The input waveform is presented to the diode bridge switch, the output ...
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LT1720/LT1721 U U APPLICATIONS INFORMATION Coincidence Detector High speed comparators are especially suited for interfac- ing pulse-output transducers, such as particle detectors, to logic circuitry. The matched delays of a monolithic dual are well suited for those cases where the ...
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PLIFIED SCHE ATIC LT1720/LT1721 17201fa 23 ...
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LT1720/LT1721 PACKAGE DESCRIPTION 3.5 0.05 1.65 0.05 2.15 0.05 (2 SIDES) 0.28 0.05 0.50 BSC 2.38 0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS .050 BSC .245 MIN .030 .005 TYP RECOMMENDED SOLDER PAD LAYOUT .010 – .020 (0.254 ...
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PACKAGE DESCRIPTION 5.23 (.206) MIN 0.42 0.04 (.0165 .0015) TYP RECOMMENDED SOLDER PAD LAYOUT 0.254 (.010) GAUGE PLANE 0.18 (.077) NOTE: 1. DIMENSIONS IN MILLIMETER/(INCH) 2. DRAWING NOT TO SCALE 3. DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE ...
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LT1720/LT1721 PACKAGE DESCRIPTION .050 BSC N .245 MIN .030 .005 TYP RECOMMENDED SOLDER PAD LAYOUT .010 – .020 45 (0.254 – 0.508) .008 – .010 (0.203 – 0.254) .016 – .050 (0.406 – 1.270) NOTE: INCHES 1. ...
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... FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 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. ...
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... Single Supply Comparator 450 A Single Supply Comparator Similar to the LT1720 with Independent Input/Output Supplies Single Comparator Similar to the LT1720/LT1721 www.linear.com 6 It can detect short events , whereas the coincidence OL OUTPUT 100ns C 100pF 1720/21 F20 LT/TP 0403 1K REV A • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1998 17201fa ...