PGAL5 Series

Butterworth Fixed Frequency Filters

with Programmable Amplifiers

25 Locust St, Haverhill, Massachusetts 01830 • Tel: 800/252-7074, 978/374-0761 • FAX: 978/521-1839

e-mail: sales@freqdev.com • Web Address: http://www.freqdev.com

Specification

(25°C and rated power input)

*Any two channels set to same gain and loading

NA – Not Available

VME Board

VM32PAFF

VM2.0PAFF

PGAB5-100

PGAB5-300

PGAB5-2.0

Analog Input

Impedance

1 M

Ω/22pF

1 M

Ω/22pF

1 M

Ω/22pF

Linear Input Range

±8V pk

±8V pk

±8V pk

CMRR

80 dB @ 1kHz typ.

80 dB @ 1kHz typ.

≥ 50 dB, DC to 100 kHz

60 dB min.

60 dB min.

≥40dB,100kHz to 2MHz

Maximum Input Range

±15V

±15V

20 V pk-pk, each leg

AC Couple (Optional Fixed Freq.)

10Hz to 1.0 kHz

10Hz to 1.0 kHz

20 Hz to 1.0 kHz

Analog Output

Impedance

1

Ω typ., 10Ω max.

1

Ω typ., 10Ω max.

1

Ω typ., 10Ω max.

Linear Operating Range

±5V, Output clamped to ±9V

±5V, Output clamped to ±9V

±4V into 500

Ω

Chl. to Chl. Crosstalk

<-100dB @ 1 kHz,

<-100dB @ 1 kHz,

<-100dB @ 1 kHz,

<-90dB @ 20 kHz

<-90dB @ 20 kHz

<-90dB @ 20 kHz

Maximum Current

5 mA

5 mA

5 mA

Offset Voltage

2mV RTI, NTE 40 mV max.

2mV RTI, NTE 40 mV max.

25 mV typ. 50 mV max.

Offset Temp. Coeff.

±(5+ 100/G) µV/ºC max.

±(5+ 100/G) µV/ºC max.

±(5+ 100/G) µV/ºC max.

Filter Characteristics

Filter type

Butterworth, 3-pole low-pass

Butterworth, 3-pole low-pass

Butterworth, 4-pole low-pass

Cut-off Frequency fc (-3 dB)

100 Hz to 100 kHz

100 Hz to 300 kHz

>100 kHz to 2 MHz

Theoretical Transfer

See Appendix A

See Appendix A

See Appendix A

Characteristics

Page 45

Page 45

Page 7

Amplitude Match*

±0.1dB @ DC,

±0.1dB @ DC,

±0.2dB @ DC

linear to ±0.25dB at fc

linear to ±0.25dB at fc

Phase Match*

0.2º typ., 1º max @ fc

0.5º typ., 2º max @ fc

2.0º max @ fc

Noise Voltage Density, RTI

20nV/

√Hz @1kHz,G=1,024

20nV/

√Hz @1kHz,G=128

16nV/

√Hz @ 1 kHz, G=64

Distortion (2 V pk-pk)

NA

NA

≤-60db to 100 kHz

≤-50 dB, 100 kHz to 2 MHz

Distortion G=2X at 1VRMS

-83dB, 1 kHz single ended

-83dB, 1 kHz single ended

NA

Output, RL-2k

Ω, BW=100 kHz

-86dB, 1 kHz differential

-86dB, 1 kHz single ended

NA

Gain Programming (G)

0.25X to 1024X in factors of 2

0.25X to 128X in factors of 2

0.25X to 64X in factors of 2

Gain Accuracy @ DC

±0.1 dB

±0.1 dB

±0.1 dB max.

Differential Output

Optional

Optional

NA

3