Tessellated Circuits: Home 
New Home Li'lBoard Categories Analog boards
New Home Li'lBoard Categories Analog boards
| Analog boards | ||
|---|---|---|
| Name | Description | Applications |
| 555 timer | The classic 555 timer chip. The board is set up so that the chip can be configured as an astable or monostable multivibrator, and it allows a wide range of timing components to be used. | Pulse or frequency generation over a wide supply range and over a wide time range. Pulse (monostable) mode can be triggered by edge or level. |
| Dual single supply opamp |  A dual Op Amp in an 8-pin SOIC. 6 combination TH(1/8 W)/SMD(0805) resistor sites per amplifier. | Many generic single-rail op-amp circuits. |
| Dual double supply opamp |  A dual Op Amp in an 8-pin SOIC. Designed to implement the classic 4 resistors per op amp (see image at right). Each is implemented as a combination through hole (1/8 W size) and/or SMD(0805 size) resistor site. | •Many generic dual-rail op-amp circuits. •One good example is the CMoy class headphone amplifier. With a L'il2.03B or L'il2.03C and a L'il7.04 this popular design can be built very easily. Using 1 uF 0805 ceramics capacitors (at about 10¢ each) I found a real improvement in sound quality when driving from a single-cell MP3 player. Polypropylene capacitors would likely be better, but they are much larger and cost 10 to 20 times as much. |
| Quad double supply opamp | A quad Op Amp in a 14-pin SOIC. 4 SMD (0805) resistor sites per amplifier. | Many generic dual-rail op-amp circuits. Good when multiple channels of gain are needed, such as in an acquisition system. |
| DDS generator | A versatile sine/triangle/square generator that is SPI-controlled. Uses the AD9833 DDS chip. | Function generator, programmable frequency source. |
| Dual single supply opamp, larger size | A dual Op Amp in an 8-pin SOIC. 6 combination TH(1/4 W)/SMD(1210) resistor sites per amplifier. Ideal when the model 3.02 is just too darn small. | Many generic single-rail op-amp circuits. |
| Small Motor driver | Provides a small full bridge motor driver circuit. Capacity is up to 36 V at 2.8 A peak | Drive a small motor or other coil. |
| Name | Description | Applications |
| SPI DAC | A single channel, 12 bit SPI dac. | Use anywhere a computer-controlled voltage is needed, such as to drive a L'il3.07 motor driver. |
| Audio amp (speaker driver) | A single channel 5W max amplifier. | |
Page visited: Thursday, Apr 3rd, 2025 at 12:35am PST. Last updated: Sep 29, 2021.