Description Each 90PF slot card provides two channels of precision, low noise and distortion (-100 dB typical) programmable filters with up to 60 dB of pre and 20 dB of post adjustable gain. Filter modules are programmable from 0.1 Hz to 300 kHz utilizing 4, 11-bit tuning ranges. When assembled with a high-pass filter in channel one (1) and a low-pass filter in channel two (2), 90PF slot cards can be configured on the fly to operate as a low-pass, high-pass, band-pass, or band-reject (notch) filter. Customers can select any combination of two available filter modules per slot card to meet their application specific signal conditioning needs. Front panel mounted BNC’s provide easy access for connection of signal input and output. Other features include differential or single-ended input, AC or DC-coupled input, single ended output, LED clipping indicators and fine adjustment of DC offset. Operating the 90PF in filter BYPASS mode allows the design engineer to use each channel as a precision instrumentation grade programmable amplifier. Features: 0.1 Hz to 300 kHz Tuning Range Selectable single-ended or differential input Gain/phase matched channels LED clipping indicators Memory storage for up to 9 set-ups/slot card <-100 dB signal-to-noise ratio to 100 kHz BW Programmable gain, 60 dB pre and 20 dB post     Applications Anti-Aliasing Sound Measurement Noise Testing Audio Communications Medical Research Industrial Process Control Seismic Analysis Vibration Analysis Available 90PF Low Pass Filters Part # dB # Poles Filter Type L8B -100 8 Butterworth L8L -100 8 Bessel L8E -88 8, 6-zero Elliptic, 1.77 L8EX -80 <= 100kHz 8, 6-zero Elliptic, 1.56 -60 > 100kHz L8EY -100 8, 6-zero Elliptic, 2.00 L8D80 -80 8, 6-zero Constant Delay L8D10 -100 8, 6-zero Constant Delay   Available 90PF High Pass Filters Part # dB # Poles Filter Type H8B -100 8 Butterworth H8E -88 8, 6-zero Elliptic, 1.77 H8EX -80 <= 100kHz 8, 6-zero Elliptic, 1.56 -60 > 100kHz H8EY -100 8, 6-zero Elliptic, 2.00

Specifications 90PF Slot Card Dual Channel Programmable Filter/Amplifier Card Product Model 90PF - L8B 90PF - L8L 90PF - L8E 90PF - L8EX Transfer Function 8-Pole Butterworth 8-Pole Bessel 8-Pole, 6-Zero elliptic — 1.77 8-Pole, 6-Zero elliptic — 1.56 Tuning Range 0.1 Hz to 300 kHz 0.1 Hz to 300 kHz 0.1 Hz to 300 kHz 0.1 Hz to 300 kHz Theoretical Transfer Characteristics Click to view Click to view Click to view Click to view Passband Ripple (theoretical) 0.0 dB 0.0 dB ± 0.035 dB ± 0.05 dB Pass Band Gain (non-inverting) 0 ± 0.2 dB 0 ± 0.2 dB 0 ± 0.2 dB 0 ± 0.2 dB to 100 kHz 0 ± 0.4 dB > 100 kHz Stop Band Attenuation Rate 48 dB/octave Attenuation Rate 48 dB/octave Attenuation 80 dB Attenuation 80 dB <100kHz> 60dB Corner Frequency Accuracy fc ± 2% max. fc ± 2% max. fr ± 2% max. fr ± 2% max. ± 3% > 100 kHz Amplitude  -3 dB  -3 dB  -0.035 dB  -0.05 dB Phase  -360º  -182º  -323º  -414º Phase Match1 0 - fc ± 2º max. ±1º typ. 0 - fc ± 2º max. ±1º typ. 0 — 0.8fr 0.8fr - fr ± 2º max. ±1º typ. ± 4º max. ±2º typ. 0 — 0.8fr 0.8fr - fr ± 3º max. ± 4º > 100kHz ± 4º max. ± 5º > 100kHz Filter Attenuation (theoretical) 0.12 dB 0.80 fc 1.91 dB 0.80 fc 0.035 dB 1.00 fr 0.5 dB 1.00 fr 3.01 dB 1.00 fc 3.01 dB 1.00 fc 3.01 dB 1.13 fr 3.01 dB 1.05 fr 60.0 dB 2.37 fc 60.0 dB 4.52 fc 60.0 dB 1.67 fr 60.0 dB 1.45 fr 80.0 dB 3.16 fc 80.0 dB 6.07 fc 80.0 dB 1.77 fr 80.0 dB 1.56 fr Amplitude Accuracy1 0.1 to 100 kHz (theoretical)     0 - 0.8 fc    ± 0.2 dB max.    ± 0.1 dB typ. 0.8 fc - fc    ± 0.3 dB max.    ± 0.15 dB typ. 0 - fc    ± 0.2 dB max.    ± 0.1 dB typ. 0 - 0.8 fr    ± 0.2 dB max.    ± 0.1 dB typ. 0.8 fr - fr    ± 0.4 dB max.    ± 0.2 dB typ. 0 - 0.8 fr    ± 0.2 dB max.    ± 0.1 dB typ. 0.8 fr - fr    ± 0.7 dB max.    ± 0.35 dB typ. Total Harmonic Distortion @ 1 kHz <-100dB typ.@3Vrms <-100dB typ.@3Vrms <-100dB typ.@3Vrms <-100dB typ.@3Vrms Broad Band Noise (5 Hz to 2MHz) 200m Vrms typ. 200m Vrms typ. 200m Vrms typ. 200m Vrms typ. Narrow Band Noise <100nV/ typ. <100nV/ typ. <100nV/ typ. <100nV/ typ.   Note 1: Channel to channel match for the same transfer function set to the same frequency and operating configuration. Product Model 90PF - L8EY 90PF - L8D80 90PF - L8D10 Transfer Function 8-Pole, 6-Zero elliptic — 2.00 8-Pole, 6-Zero constant delay 8-Pole, 6-Zero constant delay Tuning Range 0.1 Hz to 300 kHz 0.1 Hz to 300 kHz 0.1 Hz to 300 kHz Theoretical Transfer Characteristics Click to view Click to view Click to view Passband Ripple (theoretical) ± 0.05 dB 0.10 dB 0.15 dB Pass Band Gain (non-inverting) 0 ± 0.2 dB 0 ± 0.2 dB 0 ± 0.2 dB Stop Band Attenuation 100 dB Attenuation Rate 80 dB Attenuation Rate 100 dB Corner Frequency Accuracy fr ± 2% max. fc ± 2% max. fc ± 2% max. Amplitude  -0.05 dB  -3 dB  -3 dB Phase  -419º  -306º  -311º Phase Match1 0 — 0.8fr 0.8fr - fr ± 3º max. ±1.5º typ. ± 4º max. ±2º typ. 0 — 0.8fc 0.8fc — fc ± 2º max. ±1º typ. ± 4º max. ±2º typ. 0 — 0.8fc 0.8fc — fc ± 2º max. ±1º typ. ± 4º max. ±2º typ. Filter Attenuation (theoretical) 0.5 dB 1.00 fr 3.01 dB 1.00 fc 3.01 dB 1.00 fc 3.01 dB 1.06 fr 60.0 dB 3.08 fc 80.0 dB 4.45 fc 80.0 dB 1.83 fr 80.0 dB 3.57 fc 100 dB 5.20 fc 100.0 dB 2.00 fr Amplitude Accuracy1 0.1 to 100 kHz (theoretical)     0 - 0.8 fr    ± 0.2 dB max.    ± 0.1 dB typ. 0.8 fr - fr    ± 0.5 dB max.    ± 0.25 dB typ. 0 - 0.8 fc    ± 0.2 dB max.    ± 0.1 dB typ. 0.8 fc - fc    ± 0.4 dB max.    ± 0.2 dB typ. 0 - 0.8 fc    ± 0.2 dB max.    ± 0.1 dB typ. 0.8 fc - fc    ± 0.5 dB max.    ± 0.25 dB typ. Total Harmonic Distortion @ 1 kHz <-100dB typ.@3Vrms <-100dB typ.@3Vrms <-100dB typ.@3Vrms Broad Band Noise (5 Hz to 2MHz) 200m Vrms typ. 200m Vrms typ. 200m Vrms typ. Narrow Band Noise <100nV/ typ. <100nV/ typ. <100nV/ typ.   Note 1: Channel to channel match for the same transfer function set to the same frequency and operating configuration. Product Model 90PF - H8B 90PF - H8E Transfer Function 8-Pole Butterworth 8-Pole, 6-Zero elliptic — 1.77 Tuning Range 0.1 Hz to 300 kHz 0.1 Hz to 300 kHz Theoretical Transfer Characteristics Click to view Click to view Passband Ripple (theoretical) 0.0 dB ± 0.035 dB Pass Band Gain (non-inverting) 0 ± 0.2dB to 100kHz 0 ± 0.5dB to 400kHz 0 ± 0.2dB to 100kHz 0 ± 0.5dB to 400kHz Power Bandwidth 500 kHz 500 kHz Small Signal Bandwidth (-6 dB) 1 MHz (-6 dB) 1 MHz Stop Band Attenuation Rate 48 dB/octave Attenuation 80 dB Corner Frequency Accuracy fc ± 2% max. fr ± 2% max. Amplitude -3 dB -0.035 dB Phase -360º -323.5º Phase Match1 fc to 100 kHz ± 3º max. ± 1.5º typ. fr — 1.25 fr 1.25fr -100 kHz ± 4º max. ± 2º typ. ± 2º max. ± 1º typ. Filter Attenuation (theoretical) -83 dB 0.30 fc -80.0 dB 0.56 fr -48 dB 0.50 fc -60.0 dB 0.60 fr -3.01 dB 1.00 fc -0.03 dB 1.00 fr -0.01 dB 1.50 fc 0.00 dB 2.00 fr Amplitude Accuracy1 0.1 Hz to 100 kHz (theoretical)     fc — 1.25 fc    ± 0.3 dB max.    ± 0.15 dB typ. 1.25 fc — 400 kHz    ± 0.2 dB max.    ± 0.1 dB typ. fr — 1.25 fr    ± 0.4 dB max.    ± 0.2 dB typ. 1.25 fr — 400 kHz    ± 0.2 dB max.    ± 0.1 dB typ Total Harmonic Distortion @ 1 kHz <-100dB typ. @ 3Vrms <-100dB typ. @ 3Vrms Broad Band Noise (5 Hz — 2 MHz) 400m Vrms typ. 400m Vrms typ. Narrow Band Noise <100nV/ typ. <100nV/ typ.   Note 1: Channel to channel match for the same transfer function set to the same frequency and operating configuration. Product Model 90PF - H8EX 90PF - H8EY Transfer Function 8-Pole, 6-Zero elliptic — 1.56 8-Pole, 6-Zero elliptic — 2.00 Tuning Range 0.1 Hz to 300 kHz 0.1 Hz to 300 kHz Theoretical Transfer Characteristics Click to view Click to view Passband Ripple (theoretical) ± 0.05 dB ± 0.05 dB Pass Band Gain (non-inverting) 0 ± 0.3dB to 100kHz 0 ± 2.0dB to 400kHz 0 ± 0.2dB to 100kHz 0 ± 0.5dB to 400kHz Power Bandwidth 500 kHz 500 kHz Small Signal Bandwidth (-6 dB) 1 MHz (-6 dB) 1 MHz Stop Band Attenuation 80 dB <100kHz> 60 dB Attenuation 100 dB Corner Frequency Accuracy fr ± 2% max. ± 4% > 100kHz fr ± 2% max. Amplitude -0.05 dB -0.05 dB Phase -414º -419º Phase Match1 fr — 1.25 fr 1.25fr -100 kHz ± 4º max. ± 5º >100 kHz ± 3º max. ± 4º >100 kHz fr — 1.25 fr 1.25fr -100 kHz ± 4º max. ± 2º typ. ± 3º max. ± 1.5º typ. Filter Attenuation (theoretical) -80.0 dB 0.64 fr -100 dB 0.05 fr -60.0 dB 0.69 fr -80.0 dB 0.55 fr -3.01 dB 0.95 fr -3.01 dB 0.94 fr -0.03 dB 1.00 fr -0.03 dB 1.00 fr 0.00 dB 2.00 fr 0.00 dB 2.00 fr Amplitude Accuracy1 0.1 Hz to 100 kHz (theoretical)     fr — 1.25 fr    ± 0.5 dB max.    ± 0.25 dB typ. 1.25 fr — 400 kHz    ± 0.7 dB max.   fr — 1.25 fr    ± 0.5 dB max.    ± 0.25 dB typ. 1.25 fr — 400 kHz    ± 0.5 dB max.   Total Harmonic Distortion @ 1 kHz <-100dB typ. @ 3Vrms <-100dB typ. @ 3Vrms Broad Band Noise (5 Hz — 2 MHz) 400m Vrms typ. 400m Vrms typ. Narrow Band Noise <100nV/ typ. <100nV/ typ.   Note 1: Channel to channel match for the same transfer function set to the same frequency and operating configuration. 90PF Slot Card Specifications @ 25oC Dual Channel Programmable Filter/Amplifier Card Input Characteristics   Amplifier Characteristics   Input Impedance:   Distortion @ 1 kHz <-100 dB typ. @ 3.0 Vrms Differential 2 M shunted by 47pF Noise Density 14 nV/ Single Ended 1 M shunted by 47pF     Coupling AC or DC Pre Filter Gain (No Filter)   Maximum Input Signal ±10V pk @0 dB Gain Settings 0 to 60 dB in 5 dB steps ±0.1 dB tolerance Input Voltage:   Signal Bandwidth -6.0 dB @ 1.0 MHz@ +60 dB Linear Differential 20V p-p (Gain Set at 0 dB) Amplitude Match ±0.1 dB @ DC Max. Safe Differential Any Continuous value between ±40V Gain Accuracy@ DC ±0.1 dB Max Safe Common Mode Any Continuous value between ±40V     Bias Current 1 nA typ., 2 nA max. Post Filter Gain (No Filter)   Common Mode Rejection Ratio with 2k source unbalance and 0 dB gain >60 dB, dc to 50kHz Gain Settings 0 to 20 dB in 1 dB steps ±0.1 dB tolerance Signal Bandwidth -6.0 dB @ 1.0 MHz Output Characteristics Amplitude Match ±0.1 dB @ DC Full Power Bandwidth dc to 1.0 MHz Gain Accuracy@ DC  ±0.1 dB Small Signal Bandwidth (1V pk-pk) 1.0 MHz @ -6dB     Related Output 10V p-p for RL = 50     20V p-p for RL = 2k     Output Protection short circuit to Ground only     Output Impedance 50      Offset Voltage Adjustable to zero, in 1 mV steps (Range ±100 mV dc)         General     Cross Talk between Channels <-100 dB @ 1 kHz     Operating Temperature 0ºC to 50ºC     Offset Temperature Coeff. 10mV/ºC RTI     Humidity 0 to 95%, non-condensing     Slot Card Dimensions 100 x 220 mm (3U) Weight 0.60 Lbs., (0.3 Kg.)

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