Vishay 2210 Signal Conditioning Amplifier System

Vishay 2210 Signal Conditioning Amplifier System
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Features:

  • Isolated constant-voltage/constant-current excitation
  • Guarded input structure with + 350V common-mode capability, +10V and tape outputs
  • Automatic wide-range bridge balance
  • Four-pole Bessel low-pass filter
  • Constant-voltage or constant-current excitation, calibration configuration, and other optional operating modes

Specifications:

All references to microstrain assume a gage factor of 2.00
All specifications nominal or typical at +23 deg C unless noted

Input
Input Impedance dc-coupled: 22 MΩ shunted by 250 pF
ac-coupled: 1.1 microfarad in series with 20 kilΩ; low frequency cutoff (3 dB) 8 Hz nom
Source Current ± 10 nA typical; ± 20 nA maximum
Configuration 2 to 10 wire plus guard shield accepts quarter, half, or full bridge strain gage or transducer inputs. Internal half-bridge, dummy 350Ω and dummy 120Ω completion gages, remote sense and four-wire calibration capability provided. 1000Ω completion capability also provided. Accepts inputs from ground-referenced or isolated devices.
Differential Input Maximum differential input voltage of ± 50 Vdc or peak ac
Common-Mode Input Maximum common-mode input voltage of ± 350 Vdc or peak ac.
Guard Impedance Greater than 250 kilΩ to output common; greater than 1000 megΩ to power and rack ground
Amplifier
Gain 1 to 3300; continuously variable; direct reading. Gain steps X1, X10, X100, X300; with 10-turn counting knob, X1 to X11. Accuracy ± 0.5%.
Linearity ± 0.01% of full scale at dc
Frequency Response dc to 100 kHz: 3 ± 0.2 dB at all gain settings and full output.
dc to 50 kHz: 0.5 dB max at all gain settings and full output
Gain Step vs Frequency Response (3 dB) X300: 100 kHz
X100: 120 kHz
X10: 135 kHz
X1: 240 kHz
Slew Rate 6.3 V/microsec min at all gain settings
Noise (350Ω source impedance, dc-coupled) Referred-to-input (RTI) 1 microvolt 0.1 Hz to 10 Hz p-p; 2 microvolts 0.1 Hz to 100 Hz p-p
3 microvolts 0.1 Hz to 100 kHz rms
Referred-to-Output (RTO) Output related noise is a function of the setting of the gain multiplier potentiometer. Refer to the graph below for noise referred-to-output

Zero Stability ± 2 microvolts RTI, ± 200 microvolts RTO at constant temp.
Temperature Coefficient of Zero ± l microvolt/deg C RTI, ± 100 microvolt/deg C RTO; -10 deg to 60 deg C
Common-Mode Rejection Gain CMR (dB)
X1 82
X10 102
X100 122
X300 135
Common-Mode Voltage + 350 Vdc or peak ac, max operating
Standard Output ± 10V at 10 mA max
Tape Output 1.0 Vrms at 10 mA max
Output ac-coupled ± 10V at 10 mA max (7 Hz, 3 dB)
Output Monitor ± 10V standard monitored via front-panel jacks
Output Isolation >1000 meg ohms from power and rack ground
Output Protection Protected against continuous short
Capacitive Loading Up to 0.15 microfarad
Low-Pass Filter Four-pole Bessel low-pass filter with selectable 3 dB bandwidths of 1 Hz, 10 Hz, 100 Hz, 1 kHz and 10 kHz

Constant-Voltage Excitation
Range 0.50 to 15.0 Vdc at 85 mA max
Noise ± 100 microvolts ± 0.002% p-p dc to 20 kHz
Line Regulation ± 200 microvolts ± 0.01 % max for line voltage change of 10% from nominal
Load Regulation ± 200 microvolts ± 0.01% max for load variation of 10% to 90% of full load
Stability ± 0.01%/deg C or 100 microvolts/deg C, whichever is greater
Remote Sense Error <0.0005%/ ohms of lead resistance
Monitoring Front-panel monitoring jacks
Isolation Isolated from power ground and output common; floats with guard
Constant-Current Excitation
Range 0.50 to 15.0 mA dc or 1.00 to 30.0 mA dc. Compliance voltage 0.50 to 16.0V
Noise (1 microamps + 10 microvolts) p-p; dc to 20 kHz
Line Regulation ± 1 microamps ± 0.01% max for line voltage change of ± 10% from nominal
Load Regulation ± 1 microamps ± 0.01% max for 100% load change
Stability ± 0.01%/deg C or 1 microamp/deg C, whichever is greater
Monitoring Front-panel monitoring jacks; 10 mV/mA
Isolation Isolated from power ground and output common; floats with Guard
Balance
Method Electronically injected automatic balance
Range ± 15 000 microstrain (7.5 mV/V) RTI (X2 with internal jumper)
Resolution 0.50/microstrain RTI (X2 with internal jumper)
Balance Time 4 seconds typical; 8 seconds max
Accuracy ± 2 mV RTO; ± 2 microstrain RTI
Balance Trim< /td> ± 375 microstrain (188 microvolts/V) RTI
Storage Digital with battery backup. Battery life 3-5 years
Activation Activated by front-panel switch or by optically isolated remote switch or low TTL level
Calibration
Four internal shunt calibration resistors, + 0.1% tolerance
174.8K, 1000 microstrain (0.50 mV/V), 350Ω bridge
874.8K, 200 microstrain (0.10 mV/V), 350Ω bridge;
59.94K, 1000 microstrain (0.50 mV/V), 120Ωbridge