Texas Instruments REF Series Current & Power Monitors & Regulators are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for . The REF combines three circuit building-blocks on a single monolithic chip— two µA current sources and a current mirror. The sections are dielectrically. REF FEATURES. q COMPLETELY FLOATING: No Power Supply or Ground Connections q HIGH ACCURACY: ±% q LOW TEMPERATURE.
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The PSIxxx has a far worse temperature spec 0. Dramatic performance improvements can be achieved by operating the input amp Doc. Ask a related question Ask a new question. Temperature change of 1K is about 0.
REF datasheet –
Home Questions Tags Users Unanswered. Mentions Tags More Cancel. An OPA dual op amp along with a REF current source, makes an excellent bridge measurement system which features low power single-supply 5V operation a Doc. When standard IAs can not deliver the required performance, consider this enhanced version.
We have no details for what variation from spec are acceptable, we could write a new question for every single part in existence and write another set for every single situation for layouts, and then we could ask again in 6 months when prices eef200.
Prices and specifications are subject to change without notice. External circuitry can be used to obtain virtually any current. If this is no good then working up Dikgikey offerings in ascending price order or specing tightly and sorting by price shoud produce something suitable.
Amplifier, giving me great accuracy but too expensive. This is to read an RTD so the current must be low to prevent self-heating but accurate enough to calculate 0.
If you have further questions related to this thread, you may click “Ask a related question” below. Ask a new question Ask a new question Cancel. Go to Support forums. Also, since the current sources are twoterminal devices, they can be used equally well as current sinks. This forum does not work well with shopping advice.
If this question can be reworded to fit the rules in the help centerplease edit the question. Current sourcesCurrent sinksFloating current sourcesVoltage-to-current converters transconductance amplifiers Current-to-current def200 current mirrors Current-to-v Doc. Such knowledge is probably best kept from the masses. For help making this question more broadly applicable, visit the help center. In the appendix you will find a simplified model rsf200 my idea.
Tube ; Amplifier Type: An overcurrent circuit breaker senses the voltage across the drain and source terminals of an external N-channel MOSFET with no need for a sense resistor.
We are glad that we were able to resolve this issue, and will now proceed to close this thread. If you are trying to find another way to accomplish a technical task that is one thing, but just wanting a cheaper part is not a functional solution.
It saves N people looking up the same data and ensures we are looking at what you really want to replace and not something only similar. Use of the information on this site may require a license from a third party, or a license from TI. Roll your own should be cheaper than TI and as good or better, but more work. This thread has been locked. Jul 13, 3: If you have a related question, please click the ” Ask a related question ” button in the top right corner.
This is similar to the Datasheet section 8. Independent 5V and 3. This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet.
REF200: One REF200 device to power up two resistive sensors with 100uA
Burr-Brown recommends that all integrated circuits be handled with appropriate precautions. Unlike typical boost circuits, the MAX output is completely disconnected from the input in shutdown. I’m using this in conjunction with an INA Inst.