Frequently Asked Questions: Amplifiers >> High Speed Amplifiers >> HSA Selection Guide >> CMOS Input Amplifier Selection Guide
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CMOS Input
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Introduction:
- FET/CMOS-input amplifiers offer lower current noise, higher input impedance, lower bias currents, and less popcorn noise for a similar bandwidth as a bipolar-input op amp.
Applications:
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Motor diagnostics & monitoring |
Air conditioner indoor/Outdoor unit |
Industrial AC-DC |
HEV/EV inverter & motor control | HEV/EV OBC & DC/DC converter |
HEV/EV battery-management system (BMS) |
Currency counter |
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In-vitro diagnostics |
Flow Cytometry |
Optical Blood Analyzer |
- A list of TI publications related to high speed amplifiers and their applications can be found here: Application Notes
Recommended 5V Device Table:
| Devices | GBW (MHz) | Iq (mA) | Voltage offset (mV)(max) | Noise (nV/√Hz) | Rail-to-Rail |
| OPA365/OPA2365 | 50 | 4.6 | 0.2 | 4.5 | In,Out |
| TLV365/TLV2365 | 50 | 4.6 | 1.9 | 4.5 | In,Out |
| OPA607/OPA2607 | 50 | 0.9 | 0.6 | 3.8 | In to V-,Out |
| OPA354/OPA2354 | 100 | 4.9 | 8 | 6.5 | In,Out |
| OPA300/OPA2300 | 150 | 9.5 | 5 | 3 | In to V-,Out |
| OPA356/OPA2356 | 200 | 8.3 | 9 | 5.8 | Out |
Recommended 5V Automotive Qualified Device Table:
| Devices | GBW (MHz) | Iq (mA) | Voltage offset (mV)(max) | Noise (nV/√Hz) | Rail-to-Rail |
| OPA365-Q1/OPA2365-Q1 | 50 | 4.6 | 0.2 | 4.5 | In,Out |
| TLV365-Q1/TLV2365-Q1 | 50 | 4.6 | 1.9 | 4.5 | In,Out |
| OPA607-Q1/OPA2607-Q1 | 50 | 0.9 | 0.6 | 3.8 | In to V-,Out |
| OPA354A-Q1/OPA2354A-Q1/OPA4354-Q1 | 100 | 4.9 | 8 | 6.5 | In,Out |
| OPA356-Q1 | 200 | 8.3 | 9 | 5.8 | In to V-,Out |
For help desinging and suggestions for the best amplifier check out the Analog Circuit Design Studio tool.