53A-286 HEX PROGRAMMABLE ISOLATED AMPLIFIER CARD
ORDERING INFORMATION
53A-286 – Hex Programmabre Isolated Amplifier Card
53A-780 – Hooded Connector
• Six single-ended isolation amplifiers
• Six programmable gains per channel
• Maximum output of 50V at 30 mA
The 53A-286 provides six independently isolated, independently programmable high-voltage amplifiers. Each amplifier can be programmed for a gain of zero, one, two, three, four or five. The maximum output range is +50V when a gain of five has been selected. At 50 volts, the maximum available current is 30 mA over a dc to 40 KHz frequency range. In addition, all outputs are short circuit protected.
BITE
Twelve LEDs provide Built-In-Test Equipment (“BITE”) for the isolated gain amplifier. The channel LEDs indicate the last channel addressed, while the gain LEDs indicate the last gain command selected.
Specifications
Configuration:
Six independent programmable, isolated amplifiers.
Programmable Gain (each channel): X0, XI, X2, X3, X4, X5.
Type Input:
Single-ended, DC coupled.
Input Impedance:
1 MOhm shunted by <50 pf
Input Range:
±10V peak.
Maximum Input (without damage):
±105V peak.
Output Isolation:
1000V dc or 240V RMS output to individual channel input.
Output Range:
±50V peak.
Output Current:
30 mA at ±50V dc, maximum load 2 KOhms.
Short Circuit 50 mA.
External Power:
An external power supply (minimum +32V dc) must be used with this card. It is recommended that the supply be chosen so that it supplies a minimum of 10 volts more than the maximum desired output voltage level.
Accuracy:
Gain Error, adjustable to <0.2% at gain X3 with potentiometer.
Non-linearity. ±0.1% FSR.
Drift
Gain vs. Temp, 20 µV/°C.
Offset vs. Temp, 3 mV/°C
Offset vs. Time, 350 µV/month.
Frequency Response
(full load, ±50V output):
30 KHz, <±1.0 dB.
40 KHz, <±3.0 dB.
Slew Rate:
0.5V µsec.
Settling Time (0.1%):
100 µsec.
Programmed By:
ASCII Characters.
Recommended Cable:
53A-780.
