Modern high-speed RS-485 data links are pushing the envelope to the absolute breaking point with regards to data rate versus cable length. Applications include position encoders, traffic monitoring, seismic networks, and GPS transceivers. Data ...
High-resolution mixed-signal devices present an interesting challenge as you try to find the right voltage-reference design. Although no universal approach exists for these voltage-reference designs, the circuit in Figure 1 presents an interesting ...
EDN Design Ideas (DI) published a design of mine in May of 2025 for a passive two-way current mirror topology ( Ref. 1 ) that, in analogy to optical two-way mirrors, can reflect or transmit. That design comprises just two BJTs and one diode. But ...
This project made me feel a kind of kinship with Diogenes, although I was searching for the item described in the title rather than for an honest man. Figure 1. “Diogenes Looking for an Honest Man,” a painting attributed to Johann ...
The Norton amplifier topology brings back the essence of analog design by using clever circuit techniques to deliver strong performance with minimal components. It is not about a brand name it’s about a timeless analog philosophy that ...
The typical anti-log circuit The basic anti-log amplifier looks like the familiar circuit of Figure 1. Figure 1. The typical anti-log circuit has uncertainties related to the reverse current, I S , and is sensitive to temperature. The approximate ...
Several Design Ideas (DIs) have employed the subject ICs to implement programmable current sources in an innovative manner ( References 1-3 ). Figure 1 shows the idea. Figure 1. Two independent current sources, one for loads referenced to the more ...
Introduction In many applications, it is not possible to measure distance to the target by establishing a physical contact. Typical examples include measuring presence of objects on a conveyor belt in logistic centers, or ensuring safety distances ...
Applications for using a single pushbutton to advance a circuit to its next logical state are legion. Typically, there are just “on” and “off” states, but there can be more. The heart of the circuit is a toggle flip-flop ...
Voltage to current conversion circuits can take on several forms depending on the nature of the load connections. In those cases where the load is single ended, that is one end must be connected to ground, and where bipolar current flow is ...