How good is your multimeter really?
Or maybe your analog converter needs a good reference? Or lets say you want to test your microcontroller's conversion accuracy & precision. If only you had a dependable, high precision, rock-solid voltage reference.
Now you know why Adafruit made this very cute and useful little breakout board. It has two very high precision shunt-type voltage references with 750 ohm biasing resistors. One is 2.048V (great for 3.3V reference systems) and the other is 4.096 (great for 5V). Both are 0.1% accuracy!
Using is easy, just power with about 5V-12V, or 3V if you want only the 2V reference to work. Then measure the voltage on the output. Note that these are not regulators - you can't power anything off the output. They are for measurements only. For more details, check the LM4040 Datasheet for more information.
Adafruit Precision Voltage Reference (LM4040) Breakout - 2.048V and 4.096V
ADA2200Out of stock £6.25
Shop with confidence – we've been serving the hobbyist electronics, Maker, and retro gaming communities since 2012.
- Satisfaction or refund guarantee
- Worldwide shipping via mail or courier
- 50,000+ customer reviews
- Secure website and payments