Measurement System

MS-500 series

24dB/oct Filter · 48dB/oct Filter   P-81 / P-82 / P-83 / P-84 / P-85

Features

P-81

P-82

P-83

P-84

Four modes :
Lowpass (Maximum Flatness and Phase-Linear),
Highpass and THRU

16 selectable points for highresolution control of cutoff frequency

Cascade mode enables simple cascade connection to neighboring units

Input ground line is floatable, enabling the elimination of induced noise caused by ground loops

Model

Cut-off frequency range

Rolloff

P-81

0.1Hz to 1.6kHz

24dB/oct

P-82

1Hz to 16kHz

P-83

0.1Hz to 1.6kHz

48dB/oct

P-84

1Hz to 16kHz

Specifications

Mode

Lowpass (MF, PL), Highpass and THRU

No. of amplifier and filter units

Maximum of 4 channels

Cutoff frequency setting

1, 2………15, 16 (16 points), plus multipliers

Input method

CASCADE (The output of left-side unit is connected.),
FLOAT, GND (single-ended input)

Input impedance

100k ohm // 40pF

CMRR

60dB or greater (DC to 1kHz)

Output voltage

±10V

Phase matching between the same type units

P-81 : ±1° typ.,  P-82 : ±1.2° typ., P-83 : ±1° typ.,  P-84 : ±2.2° typ.
(LP, DC to 2fc, purchased together)

48dB/oct Filter   P-85

P-85

Features

Wide cutoff frequency range :0.1Hz to 119.9kHz

High resolution : 3-digits

Four filter modes

Specifications

ModelCutting frequency range

0.1 to 119.9kHz

P-81Rolloff

48dB/oct

P-82Modes

Lowpass (ML, PL), Highpass and THRU

P-83Cutting frequency setting

0.1, 0.2, 0.3, …119.9 (1199 points) plus
multipliers

P-84Input method

CASCADE (The output of left-side unit is connected.), FLOAT, GND (single-ended input)

Input impedance

100k ohm // 40pF

CMRR

60dB or greater (DC to 1kHz)

Output voltage

±10V

Phase matching between the same type units

±5.5°typ. (LP, DC to fc, purchased together)

135dB/oct Filter   P-86 / P-87

P-86

P-87

Features

Sharp rolloff equivalent to 135dB/oct

The combination of P-86 and P-87 configures a bandpass filter

Specifications

Cutting frequency range

P-86 : 1Hz to 119kHz, P-87 : 1Hz to 20kHz

Rolloff

Equivalent to 135dB/oct (8-pole Elliptic)

Modes

P-86 : Lowpass, P-87 : Highpass

Cutting frequency setting

1, 2, 3,…119 (119 points) plus multipliers

Input method

CASCADE (The output of left-side unit is connected.), FLOAT, GND (single-ended input)

Input impedance

100k ohm // 40pF

CMRR

60dB or greater (DC to 1kHz)

Output voltage

±10V

Phase matching between the same type units

±5.5°typ. (LP, DC to fc, purchased together)