MIKROE-3409, Analog Key Click Board based on KMR221 Tactile Push-Button Switch
MikroElektronika이 부품 OPA344NA 을 사용하는 참조 설계
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연관된 문서
최종 제품의 경우
- DIY Applications
- Terminals
Description
- MIKROE-3409, Analog Key Click is an analog keyboard on a Click board. It contains six tactile push buttons, used to select one of six different voltage levels. The idea behind this click is very simple: six resistors form a voltage divider. The resistors are connected in series between the VCC and the GND. Each button selects one of the six middle taps, allowing six different voltage levels to be selected. The voltage is available at the AN pin of the mikroBUS, which is additionally protected by an operational amplifier, configured as a buffer. This allows both protection and a proper impedance at the analog input pin of the microcontroller
최종 제품의 경우
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Input Voltage3.3|5 V
피쳐링 부품 (8)
| 부품 번호 | Manufacturer | Type | Description | |||
|---|---|---|---|---|---|---|
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OPA344NA/250 | Texas Instruments | Operational Amplifiers - Op Amps | Op Amp Single Low Power Amplifier R-R I/O 5.5V 5-Pin SOT-23 T/R | 구매 | |
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OPA344NA/3KG4 | Texas Instruments | Operational Amplifiers - Op Amps | Op Amp Single Low Input Bias Current Amplifier R-R I/O 5.5V 5-Pin SOT-23 T/R | 구매 | |
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OPA344NA/3K | Texas Instruments | Operational Amplifiers - Op Amps | Op Amp Single Low Power Amplifier R-R I/O 5.5V 5-Pin SOT-23 T/R | 구매 | |
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OPA344NA/250G4 | Texas Instruments | Operational Amplifiers - Op Amps | Op Amp Single Low Input Bias Current Amplifier R-R I/O 5.5V 5-Pin SOT-23 T/R | 구매 | |
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OPA344NA/250 | Texas Instruments | Operational Amplifiers - Op Amps | Op Amp Single Low Power Amplifier R-R I/O 5.5V 5-Pin SOT-23 T/R | 구매 | |
|
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OPA344NA/3K | Texas Instruments | Operational Amplifiers - Op Amps | Op Amp Single Low Power Amplifier R-R I/O 5.5V 5-Pin SOT-23 T/R | 구매 | |
|
|
OPA344NA/3KG4 | Texas Instruments | Operational Amplifiers - Op Amps | Op Amp Single Low Input Bias Current Amplifier R-R I/O 5.5V 5-Pin SOT-23 T/R | 구매 | |
|
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OPA344NA/250G4 | Texas Instruments | Operational Amplifiers - Op Amps | Op Amp Single Low Input Bias Current Amplifier R-R I/O 5.5V 5-Pin SOT-23 T/R | 구매 | |