Devices in green are
the better choices.
This is based on performance versus price.
|
|
|
|
| Op-amps U2 & U4: | ||
| LM324 | 0c to 70c | |
| LM324A | 0c to 70c | |
| LM2902 | -40c to 85c | |
| LM224 | -25c to 85c | |
| LM224A | -25c to 85c | |
| LM124 | -55c to 125c | |
| LM124A | -55c to 125c | |
| Analog Switch U3: | ||
| CD4066 | ||
| 74HC4066 | ||
| Voltage references D5 & D11: | ||
| LM431BCZ | 0c to 70c | |
| LM431BIZ | -40c to 85c | |
| TL431C | 0c to 70c | |
| TL431AC | 0c to 70c | |
| TL431I | -40c to 85c | |
| TL431AI | -40c to 85c | |
| LM431CCZ | 0c to 70c | |
| LM431CIZ | -40c to 85c | |
| Voltage reference D8: | ||
| The only concern with this device is the temperature
range. Extreme accuracy is not required. | ||
| LM385-1.2 | 0c to 70c | |
| LM285-1.2 | -40c to 85c | |
| LM185-1.2 | -55c to 125c | |