LT1011A LINER [Linear Technology], LT1011A Datasheet
![no-image](/images/no-image-200.jpg)
LT1011A
Available stocks
Related parts for LT1011A
LT1011A Summary of contents
Page 1
... R6 LT1011A 2 1 820 3 – PARALLEL OUTPUTS SERIAL OUTPUT 7475 D LATCH 1011 TA01 LT1011/LT1011A Voltage Comparator U – and the collector output. Response Time vs Overdrive 500 450 400 350 300 FALLING 250 OUTPUT 200 RISING 150 OUTPUT 100 50 0 0.1 1 ...
Page 2
... Input Voltage (Note 2) ....................... Equal to Supplies Output Short-Circuit Duration .............................. 10 sec Operating Temperature Range (Note 3) LT1011AC, LT1011C ............................... LT1011AI, LT1011I ........................... – LT1011AM, LT1011M (OBSOLETE) – 125 C Storage Temperature Range ................. – 150 C Lead Temperature (Soldering, 10 sec).................. 300 TOP VIEW ...
Page 3
... Note 8: Do not short the STROBE pin to ground. It should be current driven at 3mA to 5mA for the shortest strobe time. Currents as low as 500 A will strobe the LT1011A if speed is not important. External leakage on the STROBE pin in excess of 0.2 A when the strobe is “off” can cause offset voltage shifts. ...
Page 4
... INPUT = 100mV STEP 0 50 100 150 250 300 400 0 200 350 450 TIME (ns) 1011 G08 Worst-Case Offset Error 100 LM311 (FOR COMPARISON) 10 LT1011M LT1011C LT1011AM 1 LT1011AC 0.1 1k 10k 100k 1M SOURCE RESISTANCE ( ) 1011 G03 Transfer Function (Gain COLLECTOR OUTPUT ...
Page 5
... I SINK 0 125 0 – 0 INPUT OVERDRIVE (mV) LT1011/LT1011A Output Limiting Characteristics* 140 120 POWER DISSIPATION 100 V OUT 80 60 SHORT-CIRCUIT CURRENT 40 20 *MEASURED 3 MINUTES AFTER SHORT OUTPUT VOLTAGE (V) 1011 G11 Output Leakage Current – ...
Page 6
... LT1011/LT1011A W U TYPICAL PERFOR A CE CHARACTERISTICS Input Offset Voltage vs Common Mode Voltage 2 2.0 1.5 1.0 0.5 LIMIT = V 0 – 0.5 –1.0 – V (OR GND WITH –1.5 SINGLE SUPPLY) – 2.0 – 2.5 – V 0.1 0.2 0.3 0.4 0.5 0.6 0.7 COMMON MODE VOLTAGE ( APPLICATIONS INFORMATION Preventing Oscillation Problems Oscillation problems in comparators are nearly always ...
Page 7
... If very large (fault) input voltages must be accom- modated, series resistors and clamp diodes should be used (see Figure 3). INPUTS D1 TO D4: 1N4148 * MAY BE ELIMINATED FOR I ** SELECT ACCORDING TO ALLOWABLE FAULT CURRENT AND POWER DISSIPATION LT1011/LT1011A 0.003 OUTPUT “LO” TO “HI” ...
Page 8
... LT1011/LT1011A U U APPLICATIONS INFORMATION The input resistors should limit fault current to a reason- able value (0.1mA to 20mA). Power dissipation in the resistors must be considered for continuous faults, espe- cially when the LT1011 supplies are off. One final caution: lightly loaded supplies may be forced to higher voltages by large fault currents flowing through D1-D4 ...
Page 9
... – R LOAD 7 LT1011 GROUND ++ + V CAN BE GREATER OR LESS THAN V 1011 TA05 LT1011/LT1011A + (see curves). Driving Load Referenced to Negative Supply + – INPUTS* LT1011 *INPUT POLARITY IS REVERSED WHEN USING PIN 1 AS OUTPUT V 7 LOAD 1011 TA06 ...
Page 10
... LT1011/LT1011A U TYPICAL APPLICATIONS Strobing LT1011 3 – 6 TTL STROBE 1k 1011 TA04 NOTE: DO NOT GROUND STROBE PIN Using Clamp Diodes to Improve Frequency Response* CURRENT MODE 2 INPUT (DAC, ETC VOLTAGE INPUT R1 *SEE CURVE, “RESPONSE TIME vs INPUT STEP SIZE” Noise Immune 60Hz Line Sync** ...
Page 11
... LT1011 + 2 1 100pF + C1 MYLAR –15V ** SELECT FOR REQUIRED RESET TIME CONSTANT LT1011/LT1011A Combining Offset Adjustment and Hystersis + HYSTERESIS IS 0.45mV CURRENT CHANGE IN R 20k 6 ** THIS RESISTOR CAUSES HYSTERESIS CENTERED AROUND ...
Page 12
... LT1011/LT1011A U TYPICAL APPLICATIONS 15V ZERO R1 TRIM 1k R2 0.01 F 18k LF398 3.9k –15V C1* C2** 0.1 F 15pF R4 5. 15V D4 LM329 START 12ms T [C (pF)][1 s/pF] H MAX T 10 • C • (1 s/pF) L MAX D1 TTL OR CMOS (OPERATING ON 5V) 100k R1 5k 86.6k + † C** † D3 † ...
Page 13
... TA21 100kHz Precision Rectifier 74C04 820 7 LT1011 3 – 1 – – 5V 74C04 – 5V LT1011/LT1011A 100pF 1M 15V OUTPUT LT1008C –15V 100pF 5V 12k HP5082-2800 4 RECTIFIED OUTPUT 1k 820 12k – 5V 1011 TA23 ...
Page 14
... LT1011/LT1011A W W SCHE ATIC DIAGRA OFFSET R27 R5 300 3k 160 Q5 Q31 Q30 INPUT D4 D6 (+) Q29 2 Q1 Q28 INPUT D5 D7 (–) Q27 3 Q26 Q25 R25 R26 1.6k 1.6k PACKAGE DESCRIPTION 0.335 – 0.370 (8.509 – 9.398) DIA 0.305 – 0.335 (7.747 – 8.509) 0.040 (1 ...
Page 15
... LTC DWG # 05-08-1610) 0.053 – 0.069 (1.346 – 1.752) 0.004 – 0.010 (0.101 – 0.254) 0 – 8 TYP 0.050 0.014 – 0.019 (1.270) (0.355 – 0.483) TYP BSC LT1011/LT1011A 0.405 (10.287) MAX 0.220 – 0.310 (5.588 – 7.874 0.200 (5 ...
Page 16
... LT1011/LT1011A U TYPICAL APPLICATION 15V R2 5k FULL-SCALE R3 TRIM 8.06k INPUT 0V TO 10V 15V † R17 22M R16 50k 10Hz TRIM – 15V ALL DIODES 1N4148 TRANSISTORS 2N3904 * USED ONLY TO GUARANTEE START-UP † MAY BE INCREASED FOR BETTER 10Hz TRIM RESOLUTION RELATED PARTS PART NUMBER ...