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PGA5 Series
for FDI VME Boards
Description The PGA5 Series programmable amplifiers are digitally controlled gain modules that were designed for Frequency Devices' multi-channel VME board products to condition DC-coupled wide-band signals. They are programmed by an 8-bit serial data stream for gain selection using clock, data and strobe inputs. Other standard performance features include differential input, single ended output, 5V interface logic and low noise/distortion. Available options include AC coupled input (all models) and/or differential output (VM32PA) only.
Programmable Amplifiers
Features/Benefits: * Phase match of 1.0 for the PGA5-100 and 2.0 for the PGA5-2.0 with Gain accuracy of 0.1 dB provides precision performance solutions to design engineers, system integrators and OEM's. * Offers a low cost, versatile and convenient way to provide up to 32 channels of precision amplification in a single width B-size (6U) VME form factor.
Available Amplifier Options: VM32PA-PGA5-100 -12 dB to +60 dB in 6 dB steps for frequencies to 100 kHz VM32PA2.0-PGA5-2.0 -12 dB to +36 dB in 6 dB steps for frequencies to 2.0 MHz
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
PGA5 Series
for FDI VME Boards
PGA5-100
Frequency Response
70 40 60
Programmable Amplifiers
PGA5-2.0
Frequency Response
50
30
Gain (dB)
Gain (dB)
10 100 1000 10000 100000
40
20
30
20
10
10
0
0 -10 -10
-20
-20 100
1000
10000
100000
1000000
Frequency (Hz)
Frequency (Hz)
Common Mode Rejection Ratio
0 0 -10 -20 -20 -30 -40 -50 -60 -70 -80 -100 -90 -120 10 100 1000 10000 100000 -100 100
Common Mode Rejection Ratio
CMRR (dB)
-40
-60
-80
CMRR (dB)
1000
10000
100000
1000000
10000000
Frequency (Hz)
Frequency (Hz)
Noise
-60 -70 -60
Noise
RTI Noise density (dBVrms/Hz)
-80 -90 -100 -110 -120 -130 -140 -150 -160 -12 0 12 24 36 48 60
RTI Noise density (dBVrms/Hz)
-80
-100
-120
-140
-160
-180 -12 0 12 24 36
Gain (dB) Measured at 51.2 kHz
Gain (dB) Measured at 51.2 kHz
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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
PGA5 Series
Specification
(25C and rated power input)
VME Board Analog Input Configuration Impedance Bias Current Offset Current Safe Voltage Linear Input Range CMRR AC Couple (Optional Fixed Freq.) Analog Output Configuration Differential Output Impedance Linear Operating Range Chl. to Chl. Cross-talk Maximum Current Offset Voltage Offset Temp. Coeff. Programmable Amplifier Signal Bandwidth (-3 dB) Amplitude Match* Phase Match* Noise Voltage Density, RTI Distortion (2V pk-pk) Distortion G=2X at 3VRMS Output, RL-2k, BW=80 kHz Gain Programming Gain Accuracy @ DC
*Any two channels set to same gain and loading NA - Not Available
Programmable Amplifiers For VME Boards
VM32PA PGA5-100 DC coupled, differential input 1 M/22pF 20 pA max. 10 pA max. 15V 8V pk, each leg Typ. 80 dB @ 1 kHz min. 60 dB, 10 Hz to 100 kHz 10Hz to 1.0kHz Single ended, DC coupled Optional <1 typ., 10 max. 5V, Output clamped to 9V <-100dB @ 1 kHz, <-90dB @ 20 kHz 5 mA 2mV RTI, NTE 40 mV max. (5+ 100/G) V/C VM32PA2.0 PGA5-2.0 DC coupled, differential input 1 M/22pF 10 pA max. 10 pA max. 10V 8V pk, each leg 50 dB, DC to 100 kHz 40dB,100kHz to 2MHz 20Hz to 1.0k Hz Single ended, DC coupled NA 1 typ., 10 max. 5V, Output clamped to 9V <-100dB @ 1 kHz, <-90dB @ 20 kHz 5 mA <25 mV typ. At output 1.5 mV/C at output 25 mV/C referred to input 2 MHz 0.2dB over specified bandwidth 2.0 over specified bandwidth 16nV/Hz @1kHz, G=64 -60db, 20 Hz to 100 kHz -50 dB, 100 kHz to 2 MHz NA 0.25X to 64X in factors of 2 0.1 dB
100 kHz, Gain 6 dB 500 kHz, Gain <6 dB 0.1dB @ DC, linear to 0.25dB at 100 kHz 0.2 typ., 1 max @ 10 kHz 20nV/Hz @1kHz,G=1,024 NA -83dB, 1 kHz single ended -86dB, 1 kHz differential 0.25X to 1024X in factors of 2 0.1 dB
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. PR-00PGA5
3
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

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