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SGM621A

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Low Power, Low Noise, Rail-to-Rail Output, Instrumentation Amplifier

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The SGM621A is a high accuracy, high voltage instrumentation amplifier, which is designed to set any gain from 1 to 10000 with one external resistor. The device works well in battery-powered applications due to the low power consumption of 1.3mA typical quiescent current. The SGM621A provides SOIC-8, MSOP-8 and TDFN-3×3-8L packages which are much smaller than discrete classical-three-OPAs circuits.

The SGM621A provides 120ppm (MAX) non-linearity and 80μV (MAX) low input offset voltage. The device also features low noise, low bias current and low power. The combination of these characteristics makes it a good choice for applications requiring excellent DC performance.

The SGM621A offers 6nV/√Hz low input voltage noise, 300fA/√Hz input current noise at 1kHz, and 0.4μVP-P in the 0.1Hz to 10Hz band. It is suitable for pre-amplifier applications. The 10μs settling time to 0.01% makes SGM621A appropriate for multiplexed applications.

The SGM621A is available in Green SOIC-8, MSOP-8 and TDFN-3×3-8L packages. It is specified over the extended -40 to +125 temperature range.

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FEATURES
  • Single External Resistor Gain Set (Set Gain from 1 to 10000)

  • Input Offset Voltage: 80μV (MAX)

  • Input Bias Current: 15nA (TYP)

  • Common Mode Rejection Ratio: 120dB (TYP) (G = 10)

  • Input Voltage Noise: 6nV/√Hz at 1kHz

  • 0.1Hz to 10Hz Voltage Noise: 0.4μVP-P

  • Bandwidth: 140kHz (G = 100)

  • Settling Time to 0.01%: 10μs (G = 100)

  • Rail-to-Rail Output

  • Support Single or Dual Power Supplies: 4.6V to 36V or ±2.3V to ±18V

  • Low Power Supply Current: 1.3mA (TYP)

  • -40 to +125 Operating Temperature Range

  • Available in Green SOIC-8, MSOP-8 and TDFN-3×3-8L Packages

APPLICATIONS

Precision Current Measurement

Pressure Measurement

Ordering Information
Part Number
StatusPackagePinsPd-Free
RoHS
REACH
Green
MSL RatingOperating Temperature RangeMaterial ContentReliability Report
Unit Resale Price*
(Volume Range: in USD)
Lead Time**
(Volume Range: Days)
SGM621AXMS8G/TR
Active
MSOP-8
8
Yes
YesYesYesMSL1
-40℃ to +125℃
View
View
1-24 units : $5.25/unit
25-99 units : $4.5/unit
100-249 units : $3.75/unit
250-499 units : $3/unit
500-999 units : $2.625/unit
1000-9999 units : $1.95/unit
3K-9K : 14 days
10K-99K : 35 days
100K-999K : 84 days
1000K and above : 119 days
SGM621AXS8G/TR
Active
SOIC-8
8
Yes
YesYesYesMSL1
-40℃ to +125℃
View
View
1-24 units : $5.25/unit
25-99 units : $4.5/unit
100-249 units : $3.75/unit
250-499 units : $3/unit
500-999 units : $2.625/unit
1000-9999 units : $1.95/unit
3K-9K : 14 days
10K-99K : 28 days
100K-999K : 70 days
1000K and above : 98 days
SGM621AXTDB8G/TR
Active
TDFN-3×3-8L
8
Yes
YesYesYesMSL1
-40℃ to +125℃
View
View
1-24 units : $5.25/unit
25-99 units : $4.5/unit
100-249 units : $3.75/unit
250-499 units : $3/unit
500-999 units : $2.625/unit
1000-9999 units : $1.95/unit
3K-9K : 14 days
10K-99K : 28 days
100K-999K : 70 days
1000K and above : 112 days

* The unit resale price is for reference purposes only. Please contact our distributors for a formal quotation.

** The lead time provided is for reference purposes only and is subject to change based on different circumstances.

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SG Micro Corp (SGMICRO) specializes in the development, manufacturing and sales of high-performance and high-reliability integrated circuits for analog signal conditioning and system power management, offering innovative solutions to a broad range of applications in the industrial, automotive, communication, computing, consumer electronics, and medical equipment markets.
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