Description Frequency Devices Model 9002 Dual Channel Filter/Amplifier Instrument represents a state-of-the-art combination of performance, utility, and economy. The instrument is fully self-contained, with a user configurable 110 or 220 VAC system power supply, a digital controller, display interface electronics, and mix and match filter cards tunable from 0.1 Hz to 102.4 kHz, (Optional 204.8 kHz). Each 9002 can be configured with two independent low-pass channels, high-pass channels or a high-pass/low-pass combination for band-pass operation. Filter transfer functions must be specified at time of order. Designed with ease-of-use in mind, control programs share non-volatile random-access-memory (RAM) on the system controller card that allows for key pad or remote programming via the IEEE-488bus. The instrument is encased in a compact 3.5"H x 8.5"W x 17.0"D enclosure for bench-top use or can be mounted in a standard 19" half-rack slot. Features/Benefits: 0.1 Hz to 102.4 kHz Tuning Range Selectable single-ended or differential input Gain/phase matched channels Memory storage for up to 8 set-ups per channel Programmable AC/DC coupling Fine resolution pre/post filter gain Front/rear BNC connectors for analog I/O Applications Anti-aliasing Sound measurements Noise testing Audio communications Medical research Industrial process control Seismic Analysis Vibration Analysis   FILTER TRANSFER FUNCTIONS AVAILABLE   A. LOW-PASS   LP00   8-pole Butterworth   LP01   8-pole, 6-zero elliptic 1.77   LP02   8-pole, Bessel   LP03   8-pole, 6-zero constant delay   LP05   8-pole, 6-zero elliptic (200 kHz)   LP06   4-pole Bessel   LP07   4-pole Butterworth   LP08   8-pole, Bessel (200 kHz)   LP09   8-pole, Butterworth (200 kHz)   B. HIGH-PASS   HP00   8-pole Butterworth   HP01   8-pole, 6-zero elliptic 1.77   HP05   8-pole, 6-zero elliptic (200 kHz)   HP07   4-pole Butterworth   HP09   8-pole, Butterworth (200 kHz)           Specifications (@ 25°C and rated power Input) General Programmable Freq. Range (fc): 0.1 Hz - 102.4 kHz (Optional 204.8 kHz) Interface: IEEE-488 Frequency Resolution: 3.5 digits Pre- and Post-Filter Gain: 1.00 to 13.75 in steps of 0.05 Offset Temp. Coeff.: 50 µV/°C Phase Match: See filter specifications Amplitude Accuracy: See filter specifications Harmonic Distortion @ 1 kHz: -90 dB typ. Wide Band Noise (5 Hz - 2 MHz): 200 µVrms typ. Narrow Band Noise (5 Hz -100 kHz): 50 µVrms typ. Signal l/O: BNC Front and Rear Power Connector: 110,120, 220, 240 VAC @ 50/60 Hz Power: 30 watts Memory: 8 set-ups/channel Operating Temperature: 0°C to 50°C Dimensions: 3.5"H x 8.5"W x 17.0"D, 8.89cm H x 21.59cm W x 43.18cm D Shipping Weight: 15 Ibs., 6.8 kg   Input Characteristics Input Impedance: Differential: 2 Mohm Shunted by 24 pF to Analog Ground Single Ended 1 Mohm Shunted by 47 pF to Analog Ground Coupling: AC or DC, programmable from front panel Maxium Input Signal: ±10V pk @ 0 dB Input Voltage: Linear Differential: 20V pp (gain set @ 0 dB) Max Safe Differential: Any Continuous Value between ± 100V Max Safe Common Mode: Any Continuous Value between ± 100V Common Mode Rejection Ratio with 2kohm Source Unbalance and 0 dB Gain: 60 dB typ. Output Characteristics Full Power Bandwidth: 200 kHz Small Signal Bandwidth (1 V p-p): 400kHz @ -3 dB Output Impedance: 50 ohms Offset Voltage: ± 2 mV (Pre- and Post-gain 0 dB) DC coupled option only. Adjustable to zero via rear-panel adjustment. Current: ± 50 mA into 50 ohms Maximum Voltage (open circuit): ±10V pk. Cross-talk between channels: -90 dB max., 0 to 100 kHz Options: 19" Rack Mount Assembly, holds 2 Instruments, Additional Operation Manual   Ordering Information We hope the information given here will be helpful. The information is based on data and our best knowledge, and we consider the information to be true and accurate. Please read all statements, recommendations or suggestions herein in conjunction with our conditions of sale which apply to all goods supplied by us. We assume no responsibility for the use of these statements, recommendations or suggestions, nor do we intend them as a recommendation for any use which would infringe any patent or copyright.