90PGA Slot Card
Dual Channel Programmable
For 90IP Instrumentation Platform Amplifier Slot Card
Description:
For use in the 90IP Instrumentation Platform,
each 90PGA slot card provides design
engineers with two channels of precision, low
noise and distortion programmable amplifiers
with up to 60 dB of adjustable gain in 0.50 dB
steps over a 1 MHz bandwidth.
Front panel mounted BNC's offer 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.
Features:
· Selectable single-ended or differential
input, AC or DC coupled.
· Gain/phase matched channels
Applications:
· LED clipping indicators
· Sound Measurement
· Memory storage for up to 9 set-ups/channel
· Noise Testing
· Input noise 12 nV/ Hz typ.
· Audio Communications
· Programmable gain, 60 dB in 0.5 dB steps
· Medical Research
· Input protection to 150 Volts P-P
· Industrial Process Control
· Outputs able to drive full range into 50 .
· Seismic Analysis
· Hard front panel with remote GPIB and
· Vibration Analysis
RS232 interfaces provided.
Providing Real World analog and DSP
solutions for the following industries:
Health
Space
Defense
Science
Engineering
Technology
1
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de
90PGA Slot Card
Dual Channel Programmable
For 90IP Instrumentation Platform Amplifier Slot Card
Signal 2 Gain Signal
Input 1 Channel 1 Output 1
BNC BNC
SNG/DIF
AC/DC
10
Signal 2 Gain Signal
Input 2
Channel 2 Output 2
BNC BNC
10
AC/DC
SNG/DIF
CPLD DAC DAC CPLD
SPI BUS
EEPROM for PROGRAM CODE
AT25256 P89C660 25C080
EEPROM for PARAMETERS
32-PIN CONNECTOR
TO BACKPLANE
Figure 1 Signal Path Block Diagram
2
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de
90PGA Slot Card
Dual Channel Programmable
For 90IP Instrumentation Platform Amplifier Slot Card
Specification @ 25ºC
Input Characteristics: Gain Settings: 0 to 60 dB in 0.5 dB steps
Input Impedance: Tolerance ±0.05 dB
Differential 2 M shunted by 47pF Signal Bandwidth -6.0dB@1.0 MHz@ +60 dB
Single Ended 1 M shunted by 47pF Amplitude Match ±0.1 dB @ DC
Coupling AC or DC Gain Accuracy@ DC ±0.1 dB
Maximum Input Signal ±10V pk @0 dB
Input Voltage: Amplifier Characteristics:
Linear Differential 20Vp-p (Gain Set at 0 dB) Distortion @ 1 kHz <-100 dB typ. @ 3.0 Vrms
Max. Safe Differential Any Continuous value Noise Density 12 nV/ Hz typ.
between ±40V 14 nV/ Hz max.
Bias Current 1 nA typ., 2 nA max. General:
Common Mode Rejection Cross Talk
Ratio with 2k source between Channels <-100 dB @ 1 kHz
unbalance and 0 dB gain >60 dB, dc to 50kHz
Operating Temperature 0ºC to 50ºC
Output Characteristics: Offset Temperature Coeff. 10µV/ºC RTI
Full Power Bandwidth dc to 1.0 MHz Humidity 0 to 95%, non-condensing
Small Signal Bandwidth 1.0 MHz @ -6dB Slot Card Dimensions 100 x 220 mm (3U)
(1V pk-pk)
Related Output 10V p-p for RL = 50 Weight 0.60 Lbs., (0.3 Kg.)
20V p-p for RL = 2k
Output Protection Short circuit to Ground
Output Impedance 50
Offset Voltage Adjustable to zero
(Range ±100mV dc) in 1 mV steps.
Ordering Information
90PGA
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 that applies 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.
3
CompuMess Elektronik GmbH · Lise-Meitner-Str.1 · 85716 Unterschleissheim
Tel 089-321501-0 · Fax 089-321501-11 · www.compumess.de · www.netzteile.de