LT1678 LINER [Linear Technology], LT1678 Datasheet
LT1678
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LT1678 Summary of contents
Page 1
... The input range exceeds the power supply by 100mV with no phase inversion while the output can swing to within 170mV of either rail. The LT1678/LT1679 are offered in the SO-8 and SO-14 packages. A full set of matching specifications are also provided, facilitating their use in matching dependent appli- cations such as a two op amp instrumentation amplifier design ...
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... Operating Temperature Range (Note 4) ............................................. – 40°C to 85°C Specified Temperature Range (Note 5) ............................................. – 40°C to 85° ORDER PART NUMBER OUT A 1 LT1678CS8 – +IN A LT1678IS8 + + – PART MARKING 7 OUT B 1678 1678I 14-LEAD PLASTIC 150°C, θ ...
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... R = 600Ω 4. 0°C ≤ T ≤ 70°C A –40°C ≤ T ≤ 85°C A Above GND I = 0.1mA SINK 0°C ≤ T ≤ 70°C A – 40°C ≤ T ≤ 85°C A LT1678/LT1679 = V = 2.5V unless CM O MIN TYP MAX UNITS ● ● ● ...
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... LT1678/LT1679 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T otherwise noted. SYMBOL PARAMETER V Output Voltage Swing Low (Note 11 Output Voltage Swing High (Note 11 Output Short-Circuit Current (Note Slew Rate (Note 13) GBW Gain Bandwidth Product (Note 11) t Settling Time ...
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... V = ±14V L O 0°C ≤ T ≤ 70°C A –40°C ≤ T ≤ 85° 2k ±13. 0°C ≤ T ≤ 70°C A –40°C ≤ T ≤ 85°C A LT1678/LT1679 MIN TYP MAX UNITS 20 150 µV ● 30 350 µV ● 45 420 µV ● 0.40 3 µV/°C nA ± ...
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... LT1678/LT1679 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are at T SYMBOL PARAMETER V Output Voltage Swing Low OL V Output Voltage Swing High OH I Output Short-Circuit Current (Note Slew Rate GBW Gain Bandwidth Product THD Total Harmonic Distortion t Settling Time S R Open-Loop Output Resistance ...
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... The difference is calculated between the matching sides in µV/V. 3. The result is converted to dB. Note 15: Matching parameters are the difference between amplifiers A and B on the LT1678 and between amplifiers A and D and B and C in the LT1679. Note 16: Input range guaranteed by the common mode rejection ratio test. ...
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... LT1678/LT1679 W U TYPICAL PERFOR A CE CHARACTERISTICS Voltage Noise vs Temperature ±15V 10Hz 4 1kHz –50 – 100 125 TEMPERATURE (°C) 16789 G04 Input Bias Current vs Temperature 1400 V = ±15V –14V CM CURRENT OUT OF DUT 1200 1000 800 600 ...
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... 0 SUPPLY VOLTAGE (V) Large Signal Transient Response 10V –10V –1 5µs/DIV VCL V = ±15V S LT1678/LT1679 Common Mode Rejection Ratio vs Frequency 160 V = ±15V 25°C 140 120 100 –55° 10k 100k 1M ± ...
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... LT1678/LT1679 W U TYPICAL PERFOR A CE CHARACTERISTICS Settling Time vs Output Step (Inverting ±15V – 25°C – OUT + 4 0.01% OF 0.01 FULL SCALE FULL SCALE 2 0.1% OF 0.1% OF FULL SCALE FULL SCALE 1 0 –10 –8 –6 –4 – ...
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... Noise Testing The 0.1Hz to 10Hz peak-to-peak noise of the LT1678/ LT1679 are measured in the test circuit shown (Figure 3). 16789 F01a The frequency response of this noise tester (Figure 4) indicates that the 0.1Hz corner is defined by only one zero. ...
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... LT1678 500k + Figure 5. The LT1678/LT1679 achieve their low noise, in part, by operating the input stage at 100µA versus the typical 10µA of most other op amps. Voltage noise is inversely propor- tional while current noise is directly proportional to the square root of the input stage current. Therefore, the LT1678/LT1679’ ...
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... U U APPLICATIO S I FOR ATIO Rail-to-Rail Input The input common mode range for the LT1678/LT1679 can exceed the supplies by at least 100mV. As the common mode voltage approaches the positive rail (+V – 0.7V), the tail current for the input pair (Q1, Q2) is reduced, which prevents the input pair from saturating (refer to the Simplified Schematic) ...
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... LT1678/LT1679 PLIFIED SCHE ATIC 14 sn16789 16789fs ...
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... N .053 – .069 (1.346 – 1.752) 0° – 8° TYP .014 – .019 (0.355 – 0.483) TYP LT1678/LT1679 .189 – .197 (4.801 – 5.004) NOTE .150 – .157 (3.810 – 3.988) NOTE .004 – ...
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... Dual/Quad Decompensated Low Noise, High Speed Precision Op Amps LT1226 Low Noise, Very High Speed Op Amp LT1498/LT1499 10MHz, 5V/µs, Dual/Quad Rail-to-Rail Input and Output Op Amps LT1677 Single Version of LT1678/LT1679 LT1792 Low Noise, Precision JFET Input Op Amp LT1793 Low Noise, Picoampere Bias Current Op Amp LT1806 ...