LHBF – Bessel Filter

Specifications of the LHBF

INPUT RANGE:  ±12 V

INPUT IMPEDANCE: 10 kΩ related to ground (other values possible), input capacitance: 30 pF

AC COUPLING AT INPUT: corner frequency of 0.1 Hz (if AC /0 /DC switch at BNC connector is switched to AC)

DIFFERENTIAL INPUT: CMR >90 dB

OFFSET COMPENSATION: ±0.1 V, ±1 V or ±10 V by toggle switch and ten-turn potentiometer

LOWPASS FILTER: 8-pole Bessel, attenuation: -48 dB/octave, corner frequencies (Hz): 30, 100, 300, 500, 700, 900, 1.3k, 1.5k, 1.7K, 3k, 10k, 20k

HIGHPASS FILTER: 1-pole Bessel, attenuation: -8 dB/octave, corner frequencies (Hz): 0.3, 3, 10, 30, 100, 300, 500, 800, 1k, 3k, 10k; OFF position

GAIN: rotary switch: 1-2-5-10-20-50-100-200-500-1000

OVERLOAD LEDS: starting to light up at ±10 V

FULL POWER BANDWIDTH: 30 kHz

OUTPUT IMPEDANCE: 250 Ω

OUTPUT VOLTAGE: max. ±12 V

LOAD CAPACITANCE: max. 10 nF

GAIN / FREQUENCY MONITOR: 1V / step

POWER REQUIREMENTS: 230 V/115 V AC, 20 W

DIMENSIONS: 19″ rackmount cabinet, 19″ (483 mm), 10″ (250 mm), 3.5″ (88 mm)

Ordering Information

• LHBF-48X-8HL High/Lowpass-Bessel Filter System (with differential input)