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AMP-SGx-xx Strain Gage Amplifier Specifications

PARAMETER

SPECIFICATION

BRIDGE EXCITATION

 

Type

DC Constant Voltage (Bipolar excitation)

Magnitude

± 5 V, ± 2.5 V, ± 1.5 V

Accuracy

0.40%

Temperature Coefficient

0.0005 %/°C Max (0.00028 %/°F)

Current Limit

84 mA

REMOTE CALIBRATION

Positive & negative shunt Calibration

Shunt Resistance

 
internal values
100Kohm and 1Megohm
external values
100kohm Through 1Megohm

Shunt accuracy

 
@ 100 kohm
0.1%
@ 1Megohm
0.1%

GAIN

 

Range

 
with external jumper
100 or 2000 V/V
w/ external resistor
100 to 2000 V/V

Accuracy

 
@ 25°C, Gain =100
±0.05 % typ (±0.50 %max)
@ 25°C, Gain =1000
±0.50 %typ (±1.0 %max)

Temperature Coefficient

0.0025 %/°C (0.0014 %/°F)

OUTPUT

 

Range

±10V Max

Capacitive Load

1000 pF Max

VOLTAGE OFFSET

Referred to input of amplifier

Initial @ 25°C

±10 µV

Temperature Stability

±0.2 µV /°C

Time Stability

±0.1 µV / month

DC CMRR

120 dB

NOISE

Referred to input of amplifier

rti 0.01 - 10 Hz

0.2 µV p-p

DYNAMIC RESPONSE

Limited by an input filter (factory selectable)

Frequency Response  -3dB

Higher Bandwidths Available   
@ Gain=1000
10 kHz
@ Gain=100
10 kHz

Slew rate

4 V/ µs

Settling Time to 0.01% @ Gain=100

9 µs

POWER REQUIREMENTS

  

Voltage

±15 VDC

Current

  
Normal Operation
±15 mA plus Bridge Load / channel
During Shunt
±20 mA plus Bridge Load / channel

ENVIRONMENT

 

Specification

-40 to +85°C (-40 to +185°F)

Operation

-40 to +125°C (-40 to +257°F)
Version: 3.0 | ©2005 Michigan Scientific Corporation | Updated: May 14, 2008 11:04 AM