Low-noise preamplifier selection guide
Compact, wide-bandwidth current-to-voltage conversion module
- I/V conversion of high-frequency signals up to 10MHz
- Combines high gain with wide frequency response
Lineup
| Gain (V/A) | Frequency response | Equivalent input noise current density | |
|---|---|---|---|
| IV-202F4 | 100k | DC to 10MHz | 450fA/√Hz |
| IV-204F3 | 4M | DC to 1MHz | 70fA/√Hz |
*The IV-200 series supports customization of the frequency response according to the capacitance of the sensor connected to the input.
Input voltage - Frequency response
Wide measurement range: 1nA to 100µA
The IV-204F3 (up to 1MHz) is recommended for input current ranges between 1nA and 100nA, and the IV-202F4 (up to 10MHz) is recommended for currents above 100nA.
Conversion gain - Frequency response
*Survey conducted June 16, 2017
Output noise - Frequency response
*Survey conducted June 16, 2017
Pulse response
Output waveform comparison at square wave small signal input
IV-202F4 (DC to 10MHz, 450fA/√Hz) [Input current: 10µAp-p]
IV-204F3 (DC to 1MHz, 70fA/√Hz) [Input current: 250nAp-p]
