±250-mV input, precision reinforced isolated amplifier with integrated DC/DC converter


Product details


Input range (Vp-p) ±0.25 Isolation working voltage VIOWM (rms) (V) 1000 Isolation transient overvoltage VIOTM (peak) (V) 7071 CMTI (Min) (kV/µs) 75 Input offset (+/-) (Max) (mV) 0.25 Input offset drift (+/-) (Typ) (uV/C) 1.5 Gain error (+/-) (Max) (%) 0.4 Gain error drift (+/-) (Typ) (ppm/°C) 20 Gain non-linearity (+/-) (Max) (%) 0.075 Small signal bandwidth (Typ) (kHz) 310 Rating Catalog Operating temperature range (C) -40 to 125 open-in-new Find other Isolated amplifiers

Package | Pins | Size

SO-MOD (DWE) 16 106 mm² 10.3 x 10.3 open-in-new Find other Isolated amplifiers


  • 3.3-V or 5-V single supply, CISPR11-compliant operation with integrated DC/DC converter
  • ±250-mV input voltage range optimized for current measurement using shunt resistors
  • Fixed gain: 8.2
  • Low DC errors:
    • Initial offset voltage: ±0.2 mV (max)
    • Offset drift: ±5 µV/°C (max)
    • Initial gain error: ±0.4% (max)
    • Gain drift: ±60 ppm/°C (max)
    • Initial nonlinearity: ±0.075% (max)
  • System-level diagnostic features
  • Safety-related certifications:
    • 7071-VPK reinforced isolation per DIN VDE V 0884-11 (VDE V 0884-11): 2017-01
    • 5000-VRMS isolation for 1 minute per UL1577
  • High CMTI: 75 kV/µs (min)

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The AMC3301 is a precision, isolated amplifier with a fully integrated, isolated DC/DC converter that allows single-supply operation from the low-side of the device. The reinforced capacitive isolation barrier is certified according to VDE V 0884-11 and UL1577 and separates parts of the system that operate on different common-mode voltage levels and protects lower-voltage parts from damage.

The input of the AMC3301 is optimized for direct connection to shunt resistors or other low voltage-level signal sources. The integrated isolated DC/DC converter allows flexible placement of the shunt and the AMC3301, and makes the device a unique solution for space-constrained applications.

The excellent performance of the device supports accurate current monitoring and control, resulting in system-level power savings and, especially in motor control applications, low torque ripple. The integrated input common-mode overvoltage and DC/DC converter operation fault detection features of the AMC3301 simplify system-level design and diagnostics.

The AMC3301 is specified over the extended industrial temperature range of –40°C to +125°C.

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Sample availability

Preproduction samples are available (PAMC3301DWER). Order now

Technical documentation

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide

The AMC3301 evaluation module (EVM) is a platform for evaluating the AMC3301 device, a precision isolated amplifier with an integrated DC/DC converter, which powers the high side of the amplifier. AMC3301 is a 7-kV reinforced isolated amplifier designed for use in current shunt measuring (...)

  • Integrated DC/DC converter for high-side power
  • Reinforced isolated amplifier: 7-kV peak, 10-kV surge
  • Fixed gain of 8.2
  • ±250-mV input range

Reference designs

High-efficiency, low-emission, isolated DC/DC converter-based analog input module reference design
TIDA-010065 — This reference design is a simplified architecture for generating an isolated power supply for isolated amplifiers for measuring isolated voltages and currents. A fully integrated DC/DC converter with reinforced isolation operating from a 5-V input with configurable 5-V or 5.4-V output (headroom for (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

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SOIC (DWE) 16 View options

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