QUAD OPERATIONAL AMPLIFIERs TESTER LM324 & similar pinout ICs WITH VISUAL CONTROL  + SIGNAL GENERATOR UP TO 700 kHz  + INPUT AC SIGNAL INVERTER

              

The PWM-TESTOPAM2 tester is designed to test the performance and the quality of operational amplifiers for QUAD-channels op-amp circuits of the Lm324 series chips. The device PWM-TESTOPAM2 is made according to an inverted scheme of op-amp with a common point. This is the most popular and most common operational amplifier circuit at the shelter. The input signal is fed to the inverting input, and the non-inverting input is connected to the midpoint.

The device will be useful when checking used, new and possibly not working operational amplifiers of the 741 and 358 series and similar to them by the location of the IC pins (pinout). Why is your device on an op amp not working?  Did the op amp burn out? How to check op-amp Series 741 and 358 chips health? This task is solved by a PWM TESTOPAM2 tester.
TESTER for QUAD OPERATIONAL AMPLIFIERs  LM324 & similar pinout ICs WITH VISUAL CONTROL  + SIGNAL GENERATOR 700 kHz  + INPUT AC SIGNAL INVERTER
The TESTOPAM2 device allows detecting defective and fake chips of the 124, 224,324 series and similar ones by pinout. Very often, chips from China are defective or simply fake. With a single and dual tester tester, you can quickly identify fake and defective electronic components.

Therefore, we recommend that you check even the new LM324 series chips and the like for operability prior to installation into the device. Even original op-amp integrated circuits can be damaged by static voltage during transportation. The PWM-TESTOPAM2 allows you to check a chip simply, quickly and with visual control. Even without an oscilloscope. With an oscilloscope, you can check the quality and performance parameters. But usually visual inspection with LEDs is enough.

Testing SMD versions of LM324 chips

The operational amplifier LM324 and it analogues can be produced in SMD packages: 14-Lead SOIC, 14-Lead TSSOP. Adapter for SMD testing is not included in standard KIT, but you can buy SMD adapters separately, if you plan to test chips not only in DIP package. PWM company can offer IC SMD adapters for SOIC14⇒DIP14. No adapters for 14-Lead TSSOP to DIP package available.

Ideal operational amplifiers in practice

There are no ideal operational amplifiers in practice. There is a very strong limitation on the speed of work at high frequency and on the distortion introduced.  The op-amp must be in active mode, its inputs and outputs must not be overloaded. For example, if an excessively large signal is applied to the input of the amplifier, this will result in the output signal being equal to the saturation voltage (usually its value is less than the supply voltage by 2 V).  Many op-amps have a fairly small maximum allowable differential input voltage. The maximum voltage difference between the inverting and non-inverting inputs can be limited to 5 V for any voltage polarity. If we neglect this condition, then large input currents will arise and op-amp will not work. All these features of the op-amp can be checked with the PWM-PESTOPAM1 tester.


QUAD channels OpAmps IC tester of Lm324 series & simililar pinoutand the like are available in two versions:

    1. The DIY version of the device for self-assembling. This version comes in the form of parts and a set of electronic components for assembling the device. It is necessary to solder the electronic components on the printed circuit board, twist and assemble the details of the device.
    2. The READY version of the device assembled by the PWM company and is ready for use  
         

The device's online documentation & manuals

The PWM company provide two manuals for this testing tool at company's website http://pwm.company. You can find all information using the model name TESTOPAM2:

  1. DIY instructions guide for assembling the components of the circuit board, for testing and using
  2. DIY assembly Guide of enclosures for PWM-TOOLS testers.


The main functions of the TESTOPAM1 tester:

    1. Popular IC LM124, LM224, LM324 & similar pinout operational amplifiers tester. Inverted amplification
    2. On board square PWM generator with regulated frequency & duty cycle
    3. DC output with resettable 4A fuse protection and electronic switch commutation (switch SW1)
     

Officially supported chips for the testing in DIP14 package

LM124 LM224x ULN4336N GL324 LA6324 IR3702 HA17324 HA17902P MB3614 NJM2902D SG324N TDB0124 UA324 TA75902P OP421 OP490 OP491 KA2504 ECG987 1401УД2 1435УД2. This list can be extended in the future. This testing tool allows to test IC in DIP8 package, but using IC package adapter may test SMD chips as well. SMD adapter not include in standard equipment.
       

The testing tool provide testing of the LM324 series chips:

    1. Operational amplifier testing in Inverting Operational Amplifier Configuration mode.
    2. On board square wave PWM generator  for testing. External signal can be used if on board generator is turned off (with switch SW5)
    3. Low frequency generator allows to test OpAmps visually, using LEDs blinking (switch SW2 ON)    

The OpAmps chips can be tested in two modes:

    1. visual mode with LED blinking in low frequencies mode (SW2 switch should be pressed ON)
    2. oscilloscope mode, using external oscilloscope     

The testing tool provide on board generator with:

    1. Regulated amplification gain for dual channel configuration.
    2. regulated frequency
    3. regulated pule wide modulation

Powering of the tester

The AC-DC power adapter is not included. For the powering of the device you can use any DC adapter or any DC power source 10V-20V and with minimum 0.3A output current. The connector type: male DC Power Jack 5.5x2.1mm (DC-005 Jack). Do not exceed 22V input voltage. Power the device from current limited 8A MAXIMUM source & protected from mains for the safety reason.

Specification
Device functions 1. Popular IC LM124, LM224, LM324 & similar pinout operational amplifiers tester. Inverted amplification 2. On board square PWM generator with regulated frequency & duty cycle 3. DC output with resettable 4A fuse protection and electronic switch commutation (switch SW1)
PCB design's version 1
Device input voltage 10-20V DC. 0.3A MIN. 4A MAX, 8A PEAK MAX
Device output voltage Same as INPUT voltage. With current protection 4A MAX, 8A PEAK MAX
Tested Integrated circuit
Tested chip's description The operational amplifier 324 (124, 224) is a universal integrated operational amplifier. These devices consist of four independent high-gain frequency-compensated operational amplifiers that are designed specifically to operate from a single supply or split supply over a wide range of voltages. The LM324 IC consists of 14-pins with four independent op-amps in one package. These electronic voltage amplifiers are available in high gain with differential input as well as a single output. The voltage difference among the input terminals of the IC is very less than the output voltage. These comparators operate with a single power supply and need of dual supply is removed. These ICs can be utilized as comparators, oscillators, amplifiers, rectifiers, etc. By using this IC several applications can be implemented very easily. From the above information finally we can conclude that there are many advantages by using this IC which includes the LM324 IC is utilized like both operational amplifier as well as a comparator, and it is an electronic voltage amplifier with high-gain.
Officially supported chips of tester LM124, LM224x, ULN4336N, GL324, LA6324, IR3702, HA17324, HA17902P, MB3614, NJM2902D, SG324N, TDB0124, UA324, TA75902P, OP421, OP490, OP491, KA2504, ECG987, 1401УД2, 1435УД2
Possible SMD versions of the housing of the microcircuit 14-Lead SOIC, 14-Lead TSSOP

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QUAD OPERATIONAL AMPLIFIERs TESTER LM324 & similar pinout ICs WITH VISUAL CONTROL + SIGNAL GENERATOR 700 kHz + INPUT AC SIGNAL INVERTER PWM-TESTOPAM2

  • 29.00€

  • Ex Tax: 29.00€

Available Options


Supported CHIPS: LM124, LM224x, ULN4336N, GL324, LA6324, IR3702, HA17324, HA17902P, MB3614, NJM2902D, SG324N, TDB0124, UA324, TA75902P, OP421, OP490, OP491, KA2504, ECG987, 1401УД2, 1435УД2