22
33## Description
44
5- The Arduino Uno R4 Minima and WiFi boards, both a featuring a Renesas R7FA4M1AB3CFM#AA0 microcontroller, do have a built-in OPAMP peripheral.
5+ The Arduino UNO R4 Minima and WiFi boards, both a featuring a Renesas R7FA4M1AB3CFM#AA0 microcontroller, do have a built-in OPAMP peripheral.
66
7- OMAMPs are very versatile. They can:
7+ Operational amplifiers (or "op amp") are very versatile. They can:
88* mirror an input voltage to its output ("voltage follower")
9- * amplify a small analog voltage to its output pin, output voltage range from 0 to ~ 4.7V ("non-inverting amplifier")
9+ * amplify a small analog voltage to its output pin, output voltage range from 0 to ~ 4.7 V ("non-inverting amplifier")
1010* compare two input voltages and give a binary "higher" or "lower" output ("comparator")
1111* integrate and differentiate signals ("integrator", "differentiator")
1212* many more
1313
1414Electrical characteristics:
15- * Input from 0.2V (low speed) / 0.3V (highspeed) to AVCC0 - 0.5V (lowspeed) to AVCC0 - 0.6V (high-speed)
16- * Output from 0.1V to AVCC0 - 0.1V
17- * Open gain: 120dB typical
18- * Input offset voltage: -10 to 10mV
19- * Gain-bandwidth product: 0.04MHz (low-speed) / 1.7 MHz (high-speed)
20- * Load current: -100 to 100µA max.
15+ * Input from 0.2 V (low speed) / 0. 3V (highspeed) to AVCC0 - 0.5 V (lowspeed) to AVCC0 - 0.6 V (high-speed)
16+ * Output from 0.1 V to AVCC0 - 0.1 V
17+ * Open gain: 120 dB typical
18+ * Input offset voltage: -10 to 10 mV
19+ * Gain-bandwidth product: 0.04 MHz (low-speed) / 1.7 MHz (high-speed)
20+ * Load current: -100 to 100 µA max.
2121
2222## Usage
2323
@@ -27,7 +27,7 @@ To startup the opamp, simply include the library and call `OPAMP.begin()`. You c
2727#include < OPAMP.h>
2828
2929void setup () {
30- OPAMP.begin(OPAMP_SPEED_HIGHSPEED);
30+ OPAMP.begin(OPAMP_SPEED_HIGHSPEED);
3131}
3232
3333void loop () {}
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