LT1079 Linear Technology Corporation, LT1079 Datasheet
LT1079
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LT1079 Summary of contents
Page 1
... The LT 1078 is a micropower dual op amp in 8-pin packages including the small outline surface mount pack- age. The LT1079 is a micropower quad op amp offered in the standard 14-pin packages. Both devices are optimized for single supply operation at 5V. 15V specifications are also provided. ...
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... C/ W (J) JMAX JA OBSOLETE PACKAGE Consider the N Packages for Alternate Source 2 U RATINGS (Note 1) Operating Temperature Range LT1078AM/LT1078M/ LT1079AM/LT1079M (OBSOLETE) ..... – 125 C LT1078I/LT1079I .................................... – LT1078AC/LT1078C/LT1078S8/ LT1079AC/LT1079C .................................... Lead Temperature (Soldering, 10 sec).................. 300 TOP VIEW + OUT – ...
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... No Load 200 O = 0.03V to 3.5V 50k 150 100 A SINK 4.2 3 2.5V 0. 20kHz 3V 10k IN L LT1078/LT1079 = 1.4V unless otherwise noted LT1078C/LT1079C LT1078I/LT1079I LT1078AC/LT1079AC LT1078M/LT1079M LT1078AM/LT1079AM LT1078S8/LT1079SW TYP MAX MIN TYP 100 40 60 0.4 0.5 0.05 0.25 0. 0.6 1.2 0 ...
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... 100 A SINK 3.9 3.0 MIN = 2.6V to 12V 100 S = 0.05V to 4V, No Load 150 O = 0.05V to 3.5V 50k 110 100 A SINK 4.1 3.3 = 0.1V 1.4V unless otherwise noted LT1078I/LT1079I LT1078AM/LT1079AM LT1078M/LT1079M TYP MAX MIN TYP 70 250 95 80 280 100 100 0.4 1.8 0.5 0.6 0.7 0.07 0.50 0.07 0 106 88 104 110 94 110 600 ...
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... 50k 13 11.0 L 0.06 MIN = 10V 200 13V, –14. 5V 18V 11.0 L LT1078/LT1079 LT1078C/LT1079C LT1078I/LT1079I LT1078AC/LT1079AC LT1078M/LT1079M LT1078AM/LT1079AM LT1078S8/LT1079SW TYP MAX MIN TYP 50 250 70 80 0.05 0.25 0. 13.8 13.5 13.8 –15.3 –15.0 –15.3 114 97 114 114 100 114 5000 1000 5000 ...
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... Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: Typical parameters are defined as the 60% yield of parameter distributions of individual amplifiers, i.e., out of 100 LT1079s (or 100 LT1078s) typically 240 op amps (or 120) will be better than the indicated specification. ...
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... LT1078/79 • TPC04 10Hz Voltage Noise Distribution 2. 329 OP AMPS TESTED FROM THREE RUNS 25 106 LT1078 LT1079 VOLTAGE NOISE DENSITY (nV/ Hz) LT1078/79 • TPC07 Input Bias and Offset Currents vs Temperature 100 15V ...
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... NO LOAD 50 s/DIV V INPUT PULSE 0V TO 3.8V 125 Warm-Up Drift 0 15V 0.7 S WARM UP DRIFT 5V 0.6 S IMMEASURABLY LOW 0.5 0.4 0.3 LT1079 0.2 LT1078 0 TIME AFTER POWER-ON (MINUTES) LT1078/79 • TPC17 Capacitive Load Handling 120 5V 100 100 120 80 A ...
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... POSITIVE NEGATIVE SUPPLY SUPPLY 2. SINE WAVE 100 1k 10k FREQUENCY (Hz) LT1078/79 • TPC26 LT1078/LT1079 Distribution of Input Offset Voltage (LT1078 in 8-Pin SO Package 5V 125 – –160 –120 –80 –40 ...
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... Single Supply Operation The LT1078/LT1079 are fully specified for single supply operation, i.e., when the negative supply is 0V. Input common mode range goes below ground and the output swings within a few millivolts of ground while sinking current ...
Page 11
... The compet- ing devices, however, cannot even sink 6nA without a pull- down resistor Since the output of the LT1078/LT1079 cannot go exactly to ground, but can only approach ground to within a few millivolts, care should be exercised to ensure that the output is not saturated ...
Page 12
... V. 97dB (= 14 V/V) CMRR means that worst-case CMRR match is 91dB (= 28 V/V). However, Table 1 can be used to estimate the expected matching performance at V the two sides of the LT1078, and between amplifiers A and D, and between amplifiers B and C of the LT1079. LT1078C/LT1079C/LT1078M/LT1079M 98% YIELD 50% YIELD 30 ...
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... LT1079 9. GAIN = 1 + 2R1 100 FOR VALUES SHOWN 1/4 LT1079 – INPUT BIAS CURRENT TYPICALLY < 150pA 11 INPUT RESISTANCE = 3R = 30M FOR VALUES SHOWN NEGATIVE COMMON MODE LIMIT = (I GAIN BANDWIDTH PRODUCT = 1.8MHz LT1078/LT1079 Gain of 10 Difference Amplifier 10M 3V 1M – ...
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... OMIN NO DISTORTION TO 100Hz 1.8V 1.8V 0V –1.8V LT1078/79 • TA07 3. OUTPUT 1/2 LT1078 – LT1078/79 • TA08 3V TO 18V 11 13 – 1/4 LT1079 OUT LT1078/79 • TA09 CD4016B GAIN PIN 13 PIN 5 PIN 6 CD4016B 1000 HIGH LOW LOW 100 LOW HIGH LOW ...
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... POSITIVE SUPPLY CURRENT = 165 A + 500k BANDWIDTH (< 3V SIGNAL): X AND Y INPUTS = 10kHz P-P Z INPUT = 4kHz LT1078/LT1079 6 – OUTPUT 7 1/2 LT1078 TYPICAL OFFSET 5 600 V + LT1078/79 • TA10 505k 0.1% Z INPUT (5mV TO 50V) 220pF 13 – 14 1/4 LT1079 12 + 10k GAIN – 8 OUTPUT 1/4 LT1079 (5mV TO 8V) + LT1078/79 • TA11 500k 10789fe 15 ...
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... Q5 BIPOLAR SYMMETRY IS EXCELLENT BECAUSE ONE DEVICE, Q2, SETS BOTH LIMITS SUPPLY CURRENT 240 A –9V BANDWIDTH = 150kHz 1M** 13 – 1/4 LT1079 OUT 12 + LT1078/79 • TA12 SET OUT 2N4393 SET 1% FILM * RATIO MATCH 0.05% ** Q2, Q3, Q4, Q5 CA3096 TRANSISTOR ARRAY ...
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... LT1078/79 • TA13 TOTAL SUPPLY CURRENT = 105 A 13k* 12.3k 10k* 43.2k** 2 50k – 1k** 1k** 4 TRIM 6 – 1/2 LT1078 5 1k (SELECT AT 110 C) LT1078/LT1079 < 10.90V) S < 10.05V 220 C TRIM 7 0.02V TO 2.2V = OUT 220 C 0.1 C 1.21M* LT1078/79 • TA14 10789fe 17 ...
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... DIA 0.305 – 0.335 (7.747 – 8.509) 0.040 (1.016) MAX SEATING PLANE 0.010 – 0.045* (0.254 – 1.143) 0.016 – 0.021** (0.406 – 0.533) 18 1/2 LT1078, 1/4 LT1079 3.6k 5.6k 1.3k Q14 Q15 Q32 Q37 Q29 Q30 Q24 ...
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... TYP 0.125 0.020 (3.175) MIN (0.508) MIN 0.018 0.003 0.100 (2.54) (0.457 0.076) BSC LT1078/LT1079 0.405 (10.287) 0.005 0.200 MAX (5.080) (0.127) MIN MAX 0.015 – 0.060 (0.381 – 1.524) 0.025 (0 ...
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... LT1078/LT1079 PACKAGE DESCRIPTION 0.300 – 0.325 0.130 0.005 (7.620 – 8.255) (3.302 0.127) 0.020 (0.508) MIN 0.009 – 0.015 (0.229 – 0.381) +0.035 0.325 –0.015 0.125 +0.889 (3.175) 8.255 –0.381 MIN *THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) 8-Lead Plastic Small Outline (Narrow .150 Inch) 0.010 – ...