LT2078 Linear Technology, LT2078 Datasheet
LT2078
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LT2078 Summary of contents
Page 1
... Offset current, voltage and current noise, slew rate and gain bandwidth product are all two to ten times better than on previous micropower op amps. Both the LT2078/LT2079 can be operated from a single supply (as low as one lithium cell or two NiCd batteries). The input range goes below ground. The all NPN output stage swings to within a few millivolts of ground while sinking current– ...
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... LT2078/LT 2079 ABSOLUTE MAXIMUM Supply Voltage ...................................................... 22V Differential Input Voltage ....................................... 30V Input Voltage ............... Equal to Positive Supply Voltage ............5V Below Negative Supply Voltage Output Short-Circuit Duration .......................... Indefinite U PACKAGE/ORDER INFORMATION TOP VIEW + OUT – OUT B A +IN A – – ...
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... LT2078C/LT2078I LT2079AC/LT2079AI LT2079C/LT2079I TYP MAX MIN TYP 1000 150 1000 600 120 600 3.5 6 3.5 0.55 1.0 0.55 95 130 95 4.4 4.2 4.4 3.9 3.5 3.9 0.07 0.04 0.07 200 200 110 110 2.2 2.3 2.2 LT2078AI/LT2079AI LT2078I/LT2079I TYP MAX MIN TYP 70 250 95 80 280 100 0.4 1.8 0.5 0.6 3.0 0.6 0.07 0.70 0 106 86 104 110 92 110 600 80 600 400 60 400 4.5 8 4.5 125 170 125 4 ...
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... LT2078/LT 2079 ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS A Large-Signal Voltage Gain V VOL V Maximum Output Voltage Output Low, No Load Swing Output Low, I Output High, No Load Output High GND I Supply Current per Amplifier 15V unless otherwise noted SYMBOL PARAMETER CONDITIONS ...
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... Note 1: Typical parameters are defined as the 60% yield of parameter distributions of individual amplifiers, i.e., out of 100 LT2079s (or 100 LT2078s) typically 240 op amps (or 120) will be better than the indicated specification. Note 2: This parameter is tested on a sample basis only. All noise parameters are tested with ...
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... SINK SINK 10 NO LOAD GND L 1 –50 – 100 125 TEMPERATURE ( C) LT2078/79 • TPC11 Noise Spectrum 1000 2. 15V S VOLTAGE NOISE 300 CURRENT IS 4% LESS NOISE CURRENT NOISE IS UNCHANGED) 100 VOLTAGE NOISE ...
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... 100 80 NEGATIVE SUPPLY 2. SINE WAVE S P 100 1k 100k 1M FREQUENCY (Hz) LT2078/79 • TPC19 25 C –55 C – 125 C 100k 1M LT2078/79 • TPC14 10000 LT2078/79 • TPC17 POSITIVE SUPPLY 10k 100k 1M LT2078/79 • TPC20 7 ...
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... NO LOAD LT2078/79 • TPC27 Closed-Loop Output Impedance 100 V 100 0.1 10 100 1k 10k 125 FREQUENCY (Hz) LT2078/79 • TPC23 Small-Signal Transient Response V = 15V s/DIV 15pF L = 15V 100 s/DIV V LT2078/79 • TPC28 100k 0V LT2078/79 • TPC26 ...
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... Q10 Q17 Q20 Q34 1.35k LT 2078/LT 2079 5k 11.5k Q54 Q53 Q47 Q46 – V Q40 Q41 Q35 + V 30 OUT Q44 150k Q36 Q33 Q48 Q42 Q50 + 9.1k V Q51 Q45 Q55 10k Q43 Q38 4A 30 5.35k LT2078/79 • SIMPLIFIED SCHEM + V 12.5k Q52 J1 Q49 700k 700k – ...
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... Single Supply Operation The LT2078/LT2079 is quite tolerant of power supply bypassing. In some applications requiring faster settling time the positive supply pin of the LT2078/LT2079 should be bypassed with a small capacitor (about 0.1 F). The same is true for the negative supply pin when using split supplies. ...
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... If the op amp is oper- ating inverting there is no common mode induced distor- tion. Crossover distortion will increase as the output load resistance decreases. For the lowest distortion the LT2078/ LT2079 should be operated with the output always sourc- ing current, this is usually accomplished by putting a ...
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... BATTERY = 85 A THE INPUT RESISTANCE IS EQUAL TO THE SOURCE RESISTANCE. THE PICOAMPERE , 0.1Hz TO 10Hz P-P OFFSET CURRENT AND LOW CURRENT NOISE OF THE LT2078 ALLOWS THE USE OF 1M SOURCE RESISTORS WITHOUT DEGRADATION IN PERFORMANCE. IN ADDITION, WITH MEGOHM RESISTORS MICROPOWER OPERATION CAN BE MAINTAINED = 5V, 0V between ...
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... LT2078 3 1N4148 + 1/2 LT2078 4 6 – LT2078/79 • TA08 V = 4mV OMIN NO DISTORTION TO 100Hz 11 13 – OUT 1/4 LT2079 LT2078/79 • TA09 CD4016B GAIN PIN 13 PIN 5 PIN 6 1000 HIGH LOW LOW 100 LOW HIGH LOW LOW LOW HIGH 7 OUTPUT 8V TO –9V LT2078/79 • ...
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... POSITIVE INPUTS ONLY 12 ( OUT NEGATIVE SUPPLY CURRENT = 165 A + 500k OUT POSITIVE SUPPLY CURRENT = 165 A + 500k BANDWIDTH (< 3V SIGNAL): X AND Y INPUTS = 10kHz P-P Z INPUT = 4kHz OUTPUT (5mV TO 8V) lt2078/79 • TA11 1M** 13 – 1/4 LT2079 OUT 12 + LT2078/79 • TA12 SET ...
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... LT2078 6 255k 280k – LT1004-1.2 LT2078/79 • TA13 TOTAL SUPPLY CURRENT = 105 A U Dimensions in inches (millimeters) unless otherwise noted. S8 Package 8-Lead Plastic Small Outline (Narrow 0.150) (LTC DWG # 05-08-1610) 0.053 – 0.069 (1.346 – 1.752) 0.004 – 0.010 (0.101 – 0.254) 0 – ...
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... Max Drift Max Input Voltage Range Includes Ground OS Rail-to-Rail Input and Output, 200kHz GBW SO-8 and 14-Lead Standard Pinout VOS Max, 85kHz GBW : 499-3977 220 C TRIM 7 0.02V TO 2.2V = OUT 1/2 LT2078 220 C 0.1 C 1.21M* LT2078/79 • TA14 LT/GP 1096 7K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1996 ...