Coin Cell batteries have internal series resistance that can drop the battery's terminal voltage with large current loads. This video shows how the TS3310 can be used to supply 100+mA pulse loads such as a Bluetooth radios, using a single LR44 coin cell battery without collapsing the battery voltage. The switched output feature of the TS3310 along with its industry leading 150nA quiescent current is ideal for extending battery life in such applications as wireless sensor networks. Thanks for watching!
Touchstone's TS9002 Dual Comparator incorporates an internal reference, which can be used with a simple two resistor feedback network to adjust the hysteresis for both comparators simultaneously. This video will show how easy it is to adjust the hysteresis for the TS9002 Comparator.
In this video, Touchstone's TS3004 timer is matched up against CMOS555 timers to see which supply current is the lowest at low frequency. The TS3004 timer also reduces the number of required external components to set the base output frequency. Watch this video to find out by what factor the TS3004 reduces the supply current by.
Power reduction is at the top of the list of goals for an engineer designing a battery-powered system, would you agree? Tens or hundreds of microamps can make a significant difference. In this short video, I will show you how the shutdown feature in our TS7003, a 3mW 12-bit SAR ADC, reduces the supply current by a factor of at least 2.5. Is this for real? It sure is. Take a quick look!
Are you interested in using a timer for a VCO application? This video will demonstrate how easy it is to properly configure the TS3002 timer as a Voltage Controlled Oscillator. The applications for the VCO are abundant; I hope you all enjoy watching.
Touchstone's TS1100 uni-directional current sense amplifiers consume a very low amount of supply current while also providing precise current measurements. By walking through the calculation process, this video demonstrates the accuracy of Touchstone's current sense amplifiers. By the end of the video it will be clear Touchstone's TS1100 current sense amplifiers provide the accuracy and low power that is essential for battery powered applications.
Touchstone's TS1103 bi-directional current sense amplifiers consume a very low amount of supply current while also providing precise current measurements. By walking through the calculation process, this video demonstrates the accuracy of Touchstone's new bi-directional current sense amplifiers. By the end of the video it will be clear Touchstone's new addition to the family of bi-directional current sense amplifiers provide the accuracy and low power that is essential for battery powered applications.
You finished watching our video on how to interface your Touchstone ADC with the data acquisition viperboard and you have the GUI running on your computer. Now, you are ready take a look at data. In this video, we will take a look at some of the features included in the Touchstone ADC evaluation platform GUI using our TS7003 ADC for demonstration. You will find that these features enable a quick evaluation of any of Touchstone ADC's. Take a look and enjoy.
Did you receive your Touchstone Semiconductor ADC and data acquisition viperboard? If so, take a look at this short video and you will find that by following a few simple steps, interfacing any Touchstone Semiconductor ADC with the data acquisition viperboard is quite simple so you can begin your evaluation in no time. Let the converting begin!
Having the ability to modulate the duty cycle of a signal is useful in a wide variety of applications such as nanopower portable equipment, clock generation, and pulse-width modulation control applications. The TS3001 and TS3002 timer devices can do just that and more. Consuming only 1µA of supply current at a supply voltage of 1V, the TS3001 and TS3002 are the first and only timers on the planet to achieve this combination. With two outputs, the TS3001 and TS3002 provide a fixed duty cycle output and an anti-phase output that can be pulse-width modulated through an on-chip control pin. In this video, the TS3001's PWM output is used to modulate the speed of a fan. By the way, would you believe it that a common vegetable can power an timer IC? Is this even possible? Get some popcorn and find out - Enjoy.
Low battery detection is important in battery-powered systems to alert the user to replace the battery. In some cases, a secondary level of detection is necessary to alert the user of a critical low battery level. Is there a simple circuit that can meet these requirements? Sure there is. We can use the TS12001 nanopower voltage detector device, which combines a 0.58V reference and a comparator with a resettable comparator latch. I invite you to watch this video of a low battery detection circuit using the TS12001. Enjoy.
When the temperature in a room rises to a certain level, it may become an uncomfortable place to be. Well, a fan can help, but we do not want the fan on at all times, but only when the temperature rises above a particular threshold. Well, by using the TS12011 that combines an op amp, comparator, and a 0.58V voltage reference, we can build a simple temperature controlled fan circuit. Watch and enjoy and if it gets too hot, let the TS12011 take care of you.
Keeping track of the amount of current flowing from and to a battery is important in portable/battery-powered systems. A microcontroller can use this information to alert the system when the battery is empty or when it is full, but what is capable of both tracking this information and sending it to the microcontroller? A bidirectional current sense amplifier could do the trick, but not just any current sense amplifier. It's important that the current sense amplifier produces a valid output voltage during the interval where the load current changes direction. If this is not the case, there may be a load current region where the current sense amplifier will not respond -- otherwise known as "load-current dead zone." In this video, the reverse-current behavior of Touchstone Semi's TS1101-50 bi-directional current-sense amplifier will be compared to that of Maxim's MAX9928F. The TS1101-50's symmetric behavior at load current switchover -- versus the MAX9928F's hysteretic load-current dead zone -- results in markedly improved load-current resolution and accuracy regardless of load-current direction. We invite you to take a closer look.
This video shows three unusual application circuit examples of Touchstone Semiconductor's 0.8V, 600nA operational amplifier, the TS1001. First, the TS1001 is used to build a 1-Hz, 800nA relaxation oscillator. A second example shows how the TS1001, with the help of a logic-level PMOS, is being used as a low-power peak detector and, in the final example, the TS1001 is configured to create a very linear voltage-to-current convertor, using just one external resistor. In addition to the single-amplifier TS1001, Touchstone Semiconductor also offers the dual TS1002 and the quad TS1004.
Having an accurate and stable reference output voltage across temperature is essential in a wide variety of applications such as data acquisition systems, sensor, and hand-held applications. An important parameter to consider when selecting a reference voltage device is the output voltage temperature coefficient. In this video, the TS6001A evaluation board and a Type K thermocouple are used to determine the temperature coefficient of the TS6001A 2.5V reference voltage device -- the industry's only 2.5V reference voltage that guarantees less than 10ppm/ºC output voltage drift in a SOT23 package. With a current consumption of only 31µA and an initial output voltage accuracy of less than ±0.08%, the TS6001A is an ideal low power solution where output voltage accuracy and stability are important.
Touchstone Semiconductor, Part 1 -- The Beginning With Brett Fox President and CEO Touchstone Semiconductor, Inc. Brett Fox, Touchstone Semiconductor's President and CEO, talks about Touchstone Semiconductor's investors, and he talks about the importance of having good investors. Brett also talks about Touchstone's other co-founders and the founding team.
Overall measurement accuracy in current-sense amplifiers is a function of both gain error and amplifier input offset voltage performance. Of the two error sources, amplifier input offset voltage can impact the design more so than gain error.. If the sense resistor needs to be small to maximize power to the load and to minimize power dissipation; then amplifier input offset voltage becomes the dominant error term. To minimize load current sense error, a current-sense amplifier with a lower input offset voltage is required. By comparing the TS1100 against the MAX9634 side-by-side, the TS1100's 3-to-1 improvement in amplifier input offset voltage translates into a 2x improvement in current measurement accuracy.
Design Example of a 1.5V-Powered, Oxygen Sensor Signal Conditioning Circuit . Oxygen sensors (O2 sensors) are commonly used in life safety and industrial applications. In life safety applications, O2 sensors are used to ensure that adequate levels of atmospheric oxygen are available in any confined space such as an inside an aircraft, in a lab, or in the field. In industrial applications (for example, in the vacuum packaging of food products), O2 sensors can be used to measure the absence of atmospheric oxygen to make sure bacterial growth is inhibited. In all cases, O2 sensors may be part of a portable handheld or body-mounted instrument - where low power consumption is essential - or as a part of a larger, embedded system. Although this design example is specific to an O2 sensor, the application circuit development here equally applies to other types of low-frequency or dc sensors. Oxygen sensors (O2 sensors) are commonly used in life safety and industrial applications. In life safety applications, O2 sensors are used to ensure that adequate levels of atmospheric oxygen are available in any confined space such as an inside an aircraft, in a lab, or in the field. In industrial applications (for example, in the vacuum packaging of food products), O2 sensors can be used to measure the absence of atmospheric oxygen to make sure bacterial growth is inhibited. In all cases, O2 sensors may be part of a portable handheld or body-mounted instrument - where low power consumption ...