Technology
Typical applications and use
- CCP inputs (ICP ®)
- Prepolarized microphones
- 1/2″ precision microphones
- High levels and high frequencies
Design
- The GRAS 26CA 1/2” CCP Standard Preamplifier is a small, robust unit and uses a CCP power supply (ICP ®), e.g. GRAS 12AL. It has a very low inherent noise level, a large dynamic range and a frequency response from below 2 Hz to above 200 kHz.
- Its small ceramic thick-film substrate has a very high input impedance, and is shielded by a guard ring to minimise the influence of stray capacitance and microphonic interference.
- The 26CA is delivered with Generation II TEDS. The calibration data is programmed into the built-in TEDS according to IEEE 1451.4 using UDID I27-0-0-0U. If your measurement platform supports Transducer Electronic Data Sheets you will be able to read and write data like properties and calibration data.
- Generation II TEDS chip (DS2431) may require updated system software.
- It can be used with all GRAS prepolarized microphones, namely: 1/2″ microphones: GRAS 40AE, 40AD and 40AQ 1/4-inch microphones: GRAS 40BE and 40BD, using the optional 1/2″-inch to 1/4-inch adaptor RA0019.
- It has an integrated BNC output connector. The casing is made of stainless steel for maximum strength and durability.
- ® ICP is a registered trademark of PCB Piezotronics Inc.
- * Transducer Electronic Data Sheet – IEEE-P1451.4