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SGM830

Active

-4V to 80V, 1MHz, High-Precision Current-Sense Amplifier

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The SGM830 is a high-accuracy, fixed-gain, voltage-output, current-sense amplifier featuring a wide common-mode voltage range from -4V to 80V. This negative common-mode voltage enables operation below ground level, useful in scenarios like the flyback period of a solenoid. 

The SGM830 provides low offset voltage, small gain error and excellent DC CMRR. Its small-signal bandwidth can reach up to 1MHz, with an AC CMRR of 70dB at 50kHz. These characteristics make accurate current measurement without large transients and related recovery disturbances on the output voltage. It is suitable for both DC current measurement and high speed applications such as fast over-current protection. 

The device is powered from a single 2.7V to 18V supply, and draws 1.2mA (TYP) of supply current. There are five fixed gain options: 20V/V, 50V/V, 100V/V, 200V/V, and 500V/V, providing more flexibility to fit the gain requirements in various applications. 

The SGM830 is available in a Green SOT-23-5 package.

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FEATURES
  • Wide Common-Mode Voltage:
    • Operational Voltage: -4V to 80V
    • Survival Voltage: -20V to 85V
  • Excellent CMRR:
    • 130dB DC CMRR
    • 70dB AC CMRR at 50kHz
  • Gain Error:
    • +25℃: ±0.2% (MAX) of SGM830A/B/C/D
    • +25℃: ±0.3% (MAX) of SGM830E
    • -40℃ to +125℃: ±0.4% (MAX) of SGM830A/B/C/D
    • -40℃ to +125℃: ±0.65% (MAX) of SGM830E
  • Offset:
    • +25℃: ±170µV (MAX) of All Models
    • -40℃ to +125℃: ±500µV (MAX) of SGM840A
    • -40℃ to +125℃: ±300µV (MAX) of SGM840B/C/D
    • -40℃ to +125℃: ±400µV (MAX) of SGM840E
  • Available Gains:
    • SGM830A: 20V/V
    • SGM830B: 50V/V
    • SGM830C: 100V/V
    • SGM830D: 200V/V
    • SGM830E: 500V/V
  • High Bandwidth: 1MHz
  • Slew Rate: 5V/μs
  • Low Quiescent Current: 1.2mA (TYP)
  • Available in a Green SOT-23-5 Package
APPLICATIONS

Active Antenna Systems (AAS)
Radio Remote Unit (RRU)
Solenoid and Valve Controls
48V Rack Servers
48V Power Supply Units (PSU)
Telecom Equipment
Power Supplies

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)
SGM830AXN5G/TR
Active
SOT-23-5
5
YES
YESYESYESMSL1
-40℃ to +125℃
View
View
1-24 units : $0.875/unit
25-99 units : $0.75/unit
100-249 units : $0.625/unit
250-499 units : $0.5/unit
500-999 units : $0.4375/unit
1000-9999 units : $0.325/unit
3K-9K : 14 days
10K-99K : 35 days
100K-999K : 84 days
1000K and above : 119 days
SGM830AXN5LG/TR
Active
SOT-23-5 (L-Type)
5
YES
YESYESYESMSL1
-40℃ to +125℃
View
View
1-24 units : $0.875/unit
25-99 units : $0.75/unit
100-249 units : $0.625/unit
250-499 units : $0.5/unit
500-999 units : $0.4375/unit
1000-9999 units : $0.325/unit
3K-9K : 14 days
10K-99K : 35 days
100K-999K : 84 days
1000K and above : 119 days
SGM830BXN5G/TR
Active
SOT-23-5
5
YES
YESYESYESMSL1
-40℃ to +125℃
View
View
1-24 units : $0.875/unit
25-99 units : $0.75/unit
100-249 units : $0.625/unit
250-499 units : $0.5/unit
500-999 units : $0.4375/unit
1000-9999 units : $0.325/unit
3K-9K : 14 days
10K-99K : 35 days
100K-999K : 84 days
1000K and above : 119 days
SGM830BXN5LG/TR
Active
SOT-23-5 (L-Type)
5
YES
YESYESYESMSL1
-40℃ to +125℃
View
View
1-24 units : $0.875/unit
25-99 units : $0.75/unit
100-249 units : $0.625/unit
250-499 units : $0.5/unit
500-999 units : $0.4375/unit
1000-9999 units : $0.325/unit
3K-9K : 14 days
10K-99K : 35 days
100K-999K : 84 days
1000K and above : 119 days
SGM830CXN5G/TR
Active
SOT-23-5
5
YES
YESYESYESMSL1
-40℃ to +125℃
View
View
1-24 units : $0.7/unit
25-99 units : $0.6/unit
100-249 units : $0.5/unit
250-499 units : $0.4/unit
500-999 units : $0.35/unit
1000-9999 units : $0.26/unit
3K-9K : 14 days
10K-99K : 35 days
100K-999K : 84 days
1000K and above : 119 days
SGM830CXN5LG/TR
Active
SOT-23-5 (L-Type)
5
YES
YESYESYESMSL1
-40℃ to +125℃
View
View
1-24 units : $0.7/unit
25-99 units : $0.6/unit
100-249 units : $0.5/unit
250-499 units : $0.4/unit
500-999 units : $0.35/unit
1000-9999 units : $0.26/unit
3K-9K : 14 days
10K-99K : 35 days
100K-999K : 84 days
1000K and above : 119 days
SGM830DXN5G/TR
Active
SOT-23-5
5
YES
YESYESYESMSL1
-40℃ to +125℃
View
View
1-24 units : $0.875/unit
25-99 units : $0.75/unit
100-249 units : $0.625/unit
250-499 units : $0.5/unit
500-999 units : $0.4375/unit
1000-9999 units : $0.325/unit
3K-9K : 14 days
10K-99K : 35 days
100K-999K : 84 days
1000K and above : 119 days
SGM830DXN5LG/TR
Active
SOT-23-5 (L-Type)
5
YES
YESYESYESMSL1
-40℃ to +125℃
View
View
1-24 units : $0.875/unit
25-99 units : $0.75/unit
100-249 units : $0.625/unit
250-499 units : $0.5/unit
500-999 units : $0.4375/unit
1000-9999 units : $0.325/unit
3K-9K : 14 days
10K-99K : 35 days
100K-999K : 84 days
1000K and above : 119 days
SGM830EXN5G/TR
Active
SOT-23-5
5
YES
YESYESYESMSL1
-40℃ to +125℃
View
View
1-24 units : $0.875/unit
25-99 units : $0.75/unit
100-249 units : $0.625/unit
250-499 units : $0.5/unit
500-999 units : $0.4375/unit
1000-9999 units : $0.325/unit
3K-9K : 14 days
10K-99K : 35 days
100K-999K : 84 days
1000K and above : 119 days
SGM830EXN5LG/TR
Active
SOT-23-5 (L-Type)
5
YES
YESYESYESMSL1
-40℃ to +125℃
View
View
1-24 units : $0.875/unit
25-99 units : $0.75/unit
100-249 units : $0.625/unit
250-499 units : $0.5/unit
500-999 units : $0.4375/unit
1000-9999 units : $0.325/unit
3K-9K : 14 days
10K-99K : 35 days
100K-999K : 84 days
1000K and above : 119 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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