FEATURES
 Isolated input |
| 300 Volts common mode |
| Automatic zero |
| Gains 1 to 5,000 |
| Voltage Substitution Calibration |
| 50 kHz Bandwidth, 100 kHz optional |
| Six-pole, low-pass filter |
| Dual analog outputs |
| Program monitoring of output |
DESCRIPTION
The 6065 is a two-channel instrumentation amplifier-digitizer
module. Each channel has isolated input, 50 kHz bandwidth
and two outputs that can be filtered or wideband. Bandwidth
of 100 kHz is optional.
The input is two-wire shielded and is isolated from the
outputs, power and control interface. This gives the user
complete freedom to ground the input without creating ground
loops that introduce noise and offset errors. The isolation
provides for operation with up to ±300 Volts of common mode
applied to the input.
The differential instrumentation amplifier has programmable
gains from 1 to 5,000 and automatic zero. The standard
filter is a six-pole Bessel with four programmable bandwidths
and wideband. An optional four-pole Bessel filter has
continuously programmable bandwidth with 1 Hz resolution
below 1 kHz and 5 Hz above 1 kHz. Each channel has two
buffered, ±10 Volt outputs. The output can be digitally
monitored using any of the supported interfaces.
Voltage substitution calibration, employing an external
standard, is provided for gain calibration. Automatic zero and
gain calibration are implemented in PI660 software.
| Unless noted, specifications apply to each channel individually |
| Input |
Two wires plus shield with 50 Megohms impedance, shunted by 500 pF. ±50 Volts, differential and ±350 Volts common mode. |
| Input Range |
±2 mV to ±10 Volts full scale. Input protected to ±50 Volts. |
| Calibration |
Programmable 1, 0.1 and 0.01, attenuation with ±0.02% accuracy. |
| Gain |
Programmable from 1 to 5,000 in 1, 2, 3, 5, 10 steps with ±0.05% accuracy. |
| Static Accuracy |
Typically ±0.02% for gains 1 to 1,000 after calibration. |
| Common Mode |
60 dB plus gain in dB up to 120 dB, DC to 60Hz for ±10 Volts. |
| Bandwidth and Filter |
Six-pole, low-pass Bessel, four programmable filter bandwidths, 150 Hz, 625 Hz, 2.5 kHz, 10 kHz and wideband. |
| Sampling |
±50 nS channel-to-channel time correlation. |
| ADC |
16-bits, two's complement output. |
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