All Sections Texas Instruments

1. High-current, low-voltage shunt regulator
   Circuits Texas Instruments TLV431
   This design idea describes a high-current (up to 8 A) shunt-regulator built around the TLV431 low-voltage, adjustable, precision shunt-regulator IC. Special attention was paid to implementing this design as a two-terminal circuit block, greatly ...
   16-05-2024
2. Improve thermal airflow sensor PSRR with just two resistors
   Circuits Texas Instruments LM10
   Self-heated transistors used as thermal air flow sensors are a particular (obsessive?) interest of mine, and over the years I must have designed dozens of variations on this theme. Figure 1 illustrates one such topology seen here (Reference 1) ...
   15-05-2024

3. Non-linear pullup for multi-rate I²C buses
   Circuits Texas Instruments SN74LVC2G66 SN74LVC74APWR TLV3202
   I 2 C is a popular bidirectional serial communications bus having a clock and a data line. Both line’s drivers consist of an open drain ground-referenced N-channel MOSFET with a pullup resistor connected to a supply ranging from 1.8 V to 5 V. ...
   13-05-2024
4. Correct voltage drop and phase shift in transmission lines
   Articles Texas Instruments THS4551
   Many precision test-and-measurement and high-speed analog applications require an exact targeted voltage to be delivered to the device under test or intended load to accurately analyze the device. Design and test engineers are well-aware that this ...
   29-04-2024
5. Adaptable pullup
   Circuits Texas Instruments TS5A3159
   It’s common for I 2 C systems to have both standard and fast devices on the same bus. For I 2 C systems, the speed and power consumption both depend on the values of pullup resistors: the values of them should be low enough to secure the fast ...
   24-04-2024
6. A new and improved latching power switch. Part 2
   Circuits Texas Instruments LM393 TLC393
   Although adequate for undemanding applications, the circuit suffers from several drawbacks which may limit its suitability. The Darlington’s current gain (which can vary considerably from device to device and with temperature) plays a ...
   05-04-2024
7. 15-bit voltage-to-time ADC for "Proper Function" anemometer linearization
   Circuits Texas Instruments LMC555
   Awhile back I published a simple design idea for a thermal airspeed sensor based on a self-heated Darlington transistor pair (Ref, 1). The resulting sensor is simple, sensitive, and solid-state, but suffers from a radically nonlinear airspeed ...
   04-04-2024
8. A new and improved latching power switch. Part 1
   Circuits Texas Instruments LM393 TLC393
   A previous Design Idea [ 1 ] outlined a relatively simple circuit in which a momentary pushbutton could be made to function like a latching, mechanical switch. The article generated a good deal of reader feedback. Amongst other comments, readers ...
   28-03-2024
9. Supersized log-scale audio meter
   Circuits Texas Instruments TL084 LM385
   At the end of the DI for a Simple log-scale audio meter (Ref. 1), I promised to show how to upgrade it to work better. With these fixes, it now has near-digital performance, with faster response and smoother operation. Even this supersized version ...
   21-03-2024
10. Efficient voltage doubler is made from generic CMOS inverters
    Circuits Texas Instruments SN74AC14
    When a design needs auxiliary voltage rails and the associated current loads are modest, capacitor pump voltage multipliers are often the simplest, cheapest, and most efficient way to make them. The simplest of these is the diode pump voltage ...
    14-03-2024

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