Instruction manual

ST Amp Specifications
6-12
ST Amp Specifications
<AR-LXST100>
Number of Channel 8
Input Format Balanced differential
Input Coupling Balanced DC coupling, DC bridge method
Input impedance 1 MΩ
Input range In ST mode ±0.25 mV/V, 0.5 mV/V, 1 mV/V, 2.5 mV/V, 5 mV/V, 10 mV/V,
25 mV/V、50 mV/V (exceeded range +/- 127%)
DC mode ±1 V, 2 V, 5 V, 10 V (over range +/-127%)
Absolute max. Input Voltage +/- 25 V
Filter Joint use of digital filter and analog filter
LPF 10/30/100/300/1 k/3 k/10 k/30 kHz/Pass: - 48 dB OCT butterworth
(switched capacitor filter) 8 channels independently
Frequency Response
In ST mode DC to 30 kHz (-3 dB)
In DC mode DC to 40 kHz (-3 dB)
Quantization Bits 16 bits or 24 bits (simultaneous sampling)
Conversion method 128-times over-sampling delta sigma modulation.
at 96 kHz sampling, 64-times over-sampling is used.
Sampling frequency Depends on the sampling frequency of the LX main unit.
Range Precision +/-0.1% or less
Linearity +/-0.1% or less
Distortion Factor In DC mode
+/-0.1% or less at 96kHz sampling
+/-0.07% or less at 48 kHz sampling
At sampling of 24 kHz or less, +/-0.4% or less.
At ST mode, (SCF:10kHz,30kHz)10000uST
+/-0.1% or less at 24kHz, 96kHz sampling
Applicable Gage Register 120 to 2000 Ω
Gage Factor 2.0
Bridge Voltage 2 V (±1 V) / 10 V (± 5V)
Bridge Connection Full bridge
Remote Sense Available
Temperature Drift ±0.1%/1 degree C (10 or more minutes after power is turned on)
Balance Method Electronic auto balance
Balance Range ±10000microST
Zero Balance Auto and manual calibration by using 16 bits D/A
S/N and Crosstalk
ST Mode SCF SCF SCF
Bridge Voltage=2V 1kHz 3kHz 10kHZ
SNR(dB) Cross Talk(dB) SNR(dB) Cross Talk(dB) SNR(dB) Cross Talk(dB)
±0.5mV 67 67 62 62 58 58
±1mV 73 73 68 68 64 64
±2mV 75 75 74 74 71 71
±5mV 75 75 75 75 75 75
±10mV 75 75 75 75 75 75
±20mV 75 75 75 75 75 75
±50mV 75 75 75 75 75 75
±100mV 75 75 75 75 75 75
DC Mode SCF bypass SCF bypass SCF bypass DC Mode
Input Level Sampling Frequency(24kHz) Sampling Frequency(48kHz) Sampling Frequency(96kHz) Input Range
SNR(dB) Cross Talk(dB) SNR(dB) Cross Talk(dB) SNR(dB) Cross Talk(dB)
±1V 87/93 -77/-83 87/93 -77/-83 77/83 -74/-80 ±1V
±2V 87/93 -77/-83 87/93 -77/-83 77/83 -74/-80 ±2V
±5V 87/93 -77/-83 87/93 -77/-83 77/83 -74/-80 ±5V
±10V 87/93 -77/-83 87/93 -77/-83 77/83 -74/-80 ±10V