The SGM620 is a high accuracy instrumentation
amplifier that requires only one external resistor to set
gains of 1 to 10000. Furthermore, the SGM620 features
SOIC-8 package that is smaller than discrete designs
and offers lower power (only 1mA (TYP) supply current),
making it a good fit for battery-powered, portable (or
remote) applications.
The SGM620, with its high accuracy of 10ppm (TYP)
non-linearity and low offset voltage of 80μV (TYP) is
ideal for use in precision data acquisition systems, such
as weigh scales and transducer interfaces. Furthermore,
the low noise, low input bias current and low power of
the SGM620 make it well suited for medical
applications, such as ECG and non-invasive blood
pressure monitors.
The SGM620 works well as a pre-amplifier due to its
low input voltage noise of 13nV/ Hz at 1kHz, 0.22μV P-P
in the 0.1Hz to 10Hz band and 60fA/ Hz input current
noise. Also, the SGM620 is well suited for multiplexed
applications with its settling time of 19μs to 0.01%.
The SGM620 is available in Green SOIC-8 package. It
is specified over the extended -40 ℃ to +125 ℃
temperature range.
Rail-to-Rail Output
● Easy to Use
Gain Set with One External Resistor
(Gain Range 1 to 10000)
Support Single or Dual Power Supplies:
3.6V to 36V or ±1.8V to ±18V
Higher Performance than 3 Operational Amplifier
IA Designs
Low Power, Supply Current: 1mA (TYP)
● Excellent DC Performance
Input Offset Voltage: 80 μ V (TYP)
Input Bias Current: 0.8nA (TYP)
Common Mode Rejection Ratio: 96dB (TYP) (G = 10)
● Low Noise
Input Voltage Noise: 13nV/ Hz at 1kHz
0.1Hz to 10Hz Voltage Noise: 0.22μV P-P
● Excellent AC Specifications
Bandwidth: 65kHz (G = 100)
Settling Time to 0.01%: 19 μs (G = 100)
● -40 ℃ to +125 ℃ Operating Temperature Range
● Available in Green SOIC-8 Package
APPLICATIONS
Weigh Scales
ECG and Medical Instrumentation
Transducer Interfaces
Data Acquisition Systems
Industrial Process Controls