Datasheet

System 6000
Vishay Micro-Measurements
StrainSmart
®
Data Acquisition System
Document Number: 11270 [e-mail] www.vishaymg.com
Revision 14-Nov-06 43
MODEL 6040A LVDT CARD
• Complete LVDT signal conditioner with 16-bit
analog-to-digital converter
• Programmable digital filter
• Independent ac excitation supply
• Programmable gain steps of 1, 2, 5, and 10
• Supports six-, five-, four-, and three-wire transducers
• Fixed low-pass anti-aliasing filter (six-pole)
• Excitation reference provided for calibration
• Input connections to user's transducer via nine-pin D-sub
connector
CHANNELS: One per card.
INPUTS: 3- to 6-wire transducers.
Input Impedance: 10MΩ each input.
Source Current: ±2nA typical; ±100nA ma
x
INPUT CONNECTOR: Nine-pin D-sub style
AMPLIFIER:
Zero Temperature Stability:
±2μV/°C RTI, typical. ±100μV/°C RTO, after 30-minute
warm-up.
Gain Accuracy & Stability:
±0.25% typical
Common-Mode Rejection (dc to 60Hz):
86dB typical at X1 gain
94dB typical at X10 gain
Common-Mode Voltage:
±12V typical
MEASUREMENT RANGES: ±0.5, ±1, ±2.5, ±5Vrms
RESOLUTION: 15.25, 30.5, 76.2, 152.5μVrms
CALIBRATION: Excitation sample
EXCITATION:
3.0Vrms at 2500, 5000, or 10000Hz sine wave.
Software-selectable
Accuracy:
±5mVrms typical
Current:
±50mA max.
Over-current protected.
Load Regulation:
<±0.1% of full scale for a load variation of 10% to 100% of
full load
Temperature Stability:
Better than ±0.05%/°C
A/D CONVERTER :
Type:
16-bit successive approximation with integrated sample
and hold
Integral Linearity Error:
±2 LSB
FILTERS:
Butterworth, six-pole anti-aliasing analog filter, and 256-tap,
programmable, FIR digital filter (lowpass)
Passband Frequency:
User-selectable 1Hz to 4kHz
ANALOG OUTPUT:
(6040A version only)
Linear Output: ± 5.00V for typical full-scale input
Output Load: 2000Ω min
Bandwidth: DC to 1kHz (-3dB typical)