Programmable Continuous Time Filter - Low pass, 8th order, Elliptic type
This module can act as either an antialiasing or reconstruction filter for our SCF module and as a general purpose continuous time antialiasing or low pass filter. By rotating a 16-position switch, the user can select a cut-off frequency between 10kHz to 150kHz, in 10kHz steps. A second 16-position switch allows the user to adjust the gain of the the filter between 1 and 16, in 1v/v steps.
Features:
- Fcutoff adjustable from 0kHz to 150kHz in 10kHz Steps (0kHz position puts filter into a low-power “off” with it's output going high impedance)
- Filter has a switch selectable gain (G) facility, G = 1 to 16 in 1V/V steps
- 2.7V to 10V operation, single or dual supply
- Rail-to-Rail input and output range
- Operating temperature range 0-70°C
- Compatible with 0.1" grid breadboards
Applications:
- Anti-aliasing or reconstruction filter for a switched capacitor filter (SCF) such as our SCF module
- Anti-aliasing filtering prior to analogue-to-digital converter (ADC) or reconstruction filtering following a digital-to-analogue converter (DAC) or Pulse Width Modulator (PWM) output
- Baseband signal band-limiting prior to up-conversion or signal conditioning following down conversion in a communications system. The latter application may require a passive “roofing” filter before this module to shield it from high frequency product terms beyond the capability of this active filter module
Price: £40 per module
For further information download our datasheet -
LTC1564 Module.pdf
