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ALD2701A Datasheet(PDF) 6 Page - Advanced Linear Devices |
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ALD2701A Datasheet(HTML) 6 Page - Advanced Linear Devices |
6 / 9 page ALD2701A/ALD2701B Advanced Linear Devices 6 of 9 ALD2701 TYPICAL APPLICATIONS RAIL-TO-RAIL VOLTAGE FOLLOWER/BUFFER - + OUTPUT 5V 0.1µF * See Rail to Rail Waveform 0≤ VIN ≤ 5V VIN ZIN = 1012Ω ~ 1/2 ALD2701 PHOTO DETECTOR CURRENT TO VOLTAGE CONVERTER + - +2.5V -2.5V RF = 5M I PHOTODIODE VOUT = 1 X RF RL = 100K 1/2 ALD2701 HIGH INPUT IMPEDANCE RAIL-TO-RAIL PRECISION DC SUMMING AMPLIFIER V- = - 2.5V 10M 10M 10M 10M 10M 10M RIN = 10MΩ Accuracy limited by resistor tolerances and input offset voltage V+ = +2.5V 0.1µF 0.1µF VOUT V- ≤ VIN ≤ V+ V- ≤ VOUT ≤ V+ V1 V4 V3 V2 VOUT = V1 + V2 - V3 - V4 1/2 ALD2701 RAIL-TO-RAIL WAVEFORM Performance waveforms. Upper trace is the output of a Wien Bridge Oscillator. Lower trace is the output of Rail-to-Rail voltage follower. 0V +5V OUTPUT 0V +5V INPUT RAIL-TO-RAIL WINDOW COMPARATOR +5V + - + - VIN 100K VREF (HIGH) VREF (LOW) 3 2 5 6 8 4 1 7 1/4 74 C00 1/2 ALD2701 VOUT VOUT (LOW) FOR VREF (LOW) < VIN < VREF(HIGH) 100K 1/2 ALD2701 WIEN BRIDGE OSCILLATOR (RAIL-TO-RAIL) SINE WAVE GENERATOR 10K 10K 10K +2.5V -2.5V .01µF C = .01µF R = 10K 1/2 ALD2701 f = 1 = 1.6KHZ 2πRC ~~ VOUT *See Rail to Rail Waveform LOW VOLTAGE INSTRUMENTATION AMPLIFIER 50K 100K 100K f max = 20KHz -40mV ≤ VIN ≤ 40mV - + 0.1µF 0.1µF V+ V- - + 100K 100K 1M - 500K 0.1µF V+ V+ 1M + 1M V- V- 0.1µF VOUT 1M ALD1701 1/2 ALD2701 GAIN = 25 V- ≤ VOUT ≤ V+ All resistors are 1% V+ = +1.0V V- = -1.0V Short Circuit Input Current 1µA 0.1µF 0.1µF V+ V- 1/2 ALD2701 |
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