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Single Supply 10MHz Lowpass Filter Features the LT1819 Op Amp & Adjustable Bandwidth Up to 20MHz - Low noise, low distortion LT1819 circuit trades parts count and components sensitivity for an adjustable bandwidthup to 20MHz Diff in diff out circuit. Measured signal-to-noise plus distortion for LT1819 circuit is 71.5dB, just a little nosier than the fixed bandwidth LT6600-10 filter differential filter. __ Linear Technology/Analog Devices App Note, Jul 2, 2012
Single Supply 16-Bit ADC Driver - This circuit shows the LT6203 driving an LTC1864 unipolar 16-bit, 250ksps A/D converter. The bottom half of the LT6203 is in a gain of 1 and buffers the 0V negative fullscale signal VLOW into the negative input of the LTC1864. The upper half of the LT6203 is in a gain of 10, referenced to the buffered voltage VLOW and drives __ Linear Technology/Analog Devices App Note, Jul 2, 2012
Single Supply Current Source for Platinum RTD - The LT1800's Precision and low bias input stage is used to good advantage in Fig.5 Single Supply Current Source for Platinum RTD circuit. R4 and C1 stabilize the circuit making it insensitive to cable characteristics. Output is 1.00V at 0ºC and its gain factor is 3.85mV/ºC. __ Linear Technology/Analog Devices App Note, Jul 2nd 2012
Single Supply Shock/Vibration Sensor Amplifier - The LTC6087/LTC6088 are dual/quad, low noise, low offset, rail-to-rail input/output, unity-gain stable CMOS
operational amplifiers that feature 1pA of input bias current. A 14MHz gain bandwidth and 7.2V/μs slew rate, combined with low noise (10nV/√Hz) and a low 0.75mV offset, make the LTC6087/LTC6088 useful in a variety __ Linear Technology/Analog Devices App Note, Jul 25th 2012
Single Supply Strain Gauge Amplifier - A dual CMOS
amplifier with low supply voltage operation and rail to rail input and output performance makes single supply operation easy. This circuit provides a gain of 1001 to the small differential input signal from a low voltage strain gauge bridge transducer. High input impedance allows for high valued input resistors to minimize loading on the bridge network. __ Linear Technology/Analog Devices App Note, mar 16, 2010
Single Supply Type K Thermocouple Signal Conditioning Amplifier with Cold Junction Compensation - The LTC2050 is a zero-drift precision chopper stabilized operational amplifier available in the 5- or 6-lead SOT-23 and SO-8 packages. It minimizes board area while providing uncompromising DC performance, including 3mV (max) DC offset and 30nV/°C (max) DC offset drift. It operates from a 2.7V supply while still supporting __ Linear Technology/Analog Devices App Note, Apr 9th 2010
Single Supply Video Line Driver (AC Coupled) - When AC-coupling video, the waveform Dynamics change with respect to the bias point of the amplifi er according to the scene brightness of the video stream. In the worst case, 1VP-P video (composite or Luminance + Sync in Y/C or YPBPR format) can exhibit a varying DC content of 0.56V, with the dynamic requirement being __ Linear Technology/Analog Devices App Note, Mar 25th 2010
Single Supply, Micropower Sample & Hold - Two op amp buffers, CMOS
switches and a low leakage capacitor create a simple sample/hold circuit. The LT1006 has the ability to speed up response and reduce supply current through pin 8. When sampling the amplifiers are sped up to acquire signals in just 20us. When put into hold mode the supply current is throttled back to only 250uA __ Linear Technology/Analog Devices App Note, Jun 21, 2011
Slow Op Amp makes fast multivibrator - 01/01/98 EDN-Design Ideas A classic one-shot multivibrator using an op amp(Figure 1a) needs a relatively long-duration triggering pulse, even though the circuit is in theory a slope-triggered configuration. This limitation can be a problem when you want to use a "spare" op amp from a dual or quad package(LM324, LM358, LM6482, or LT1013, for example) triggered Design by Lukasz Sliwczynski, University of Mining and Metallurgy, Krakow, Poland
SOT-23 Micropower Rail-to-Rail Op Amps Operate with Inputs Above the Positive Supply - DN221 Design Notes __ Linear Technology/Analog Devices
Source Resistance Induced Distortion in Op Amps - DN84 Design Notes __ Linear Technology/Analog Devices
Square-Root Circuit - This circuit generates the square root of the input at a reference voltage. Such type of square-root output is normally used in R&D labs. Fig.1 shows the proposed circuit. A sawtooth __ Electronics Projects for You
Strain Gauge Signal Conditioner with Bridge Excitation - A buffered 7V reference provides a 5V excitation voltage to a balanced strain gauge resistor bridge. To provide a 0V output when the bridge is perfectly balanced, a second amplifier biases the bottom of the bridge to a negative compliment of the 5V excitation voltage. Using a dual matched amplifier package such as the LT1002 __ Linear Technology/Analog Devices App Note, Jun 21st 2011
Summing Amplifier - The summing amplifier is a handy circuit enabling you to add several signals together. What are some examples? If you're measuring temperature, you can add a negative offset to make the display read "0" at the freezing point. On a precision amplifier, you may need to add (spice design)
Super Low Distortion Variable Sine Wave Oscillator - The LT1028 (gain of –1 stable) /LT1128 (gain of +1 stable) achieve a new standard of excellence in noise performance with 0.85nV/rtHz 1kHz noise, 1.0nV/rtHz 10Hz noise. This ultralow noise is combined with excellent high speed specifications (gain-bandwidth product is 75MHz for LT1028, 20MHz for LT1128) , distortion-free __ Linear Technology/Analog Devices App Note, Jun 21, 2011
Switched-Gain Op Amp Serves as Phase Detector or Mixer - 05/01/08 EDN-Design Ideas By switching the disable input of an op amp at a reference frequency and lowpass-filtering its output, you can obtain a dc voltage proportional to the phase difference Design by W Bruce Warren, Marietta, GA
Switched-Capacitor Integrator - We can strap this circuit onto the front end of an opamp to create the basic building block of many filter circuits the integrator. However, the major obstacle to happy filtering is the mine field of stray capacitance. These uncontrolled strays can add significant capacitance to the switched capacitor, destroying the accuracy of your desired filter __ Designed by Rick
SwOpAmp Makes Square-wave Generator - 02/15/96 EDN-Design Ideas A simple technique provIdeas phase compensation for the oscillator in Figure 1a. In this circuit, a tungsten lamp regulates the amplitude of a crystal bridge oscillator. This type of oscillator produces a very low-distortion output at a very stable frequency. The op amp must have a Design by Jim Todsen, Burr-Brown Corp Tucson, AZ
Synchronous Modulator - File contains two versions. This unique circuit uses a very small amount of battery current and has excellent carrier suppression. Its only shortcoming is that you must limit the input signal to 0.7 Vp-p in order to prevent distortion. To use higher input __ Designed by Andrew R. Morris
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