±1-V input, precision reinforced isolated amplifier with integrated DC/DC converter and high CMTI


Product details


Input range (Vp-p) ±1 Isolation working voltage VIOWM (rms) (V) 1200 Isolation transient overvoltage VIOTM (peak) (V) 6000 CMTI (Min) (kV/µs) 75 Input offset (+/-) (Max) (mV) 0.2 Input offset drift (+/-) (Typ) (uV/C) 5 Gain error (+/-) (Max) (%) 0.4 Gain error drift (+/-) (Typ) (ppm/°C) 60 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 operation with integrated DC/DC converter
  • ±1-V input voltage range optimized for voltage measurements with high input impedance
  • Fixed gain: 2.0
  • Low DC errors:
    • Gain error: ±0.2% (max)
    • Gain drift: ±45 ppm/°C (max)
    • Offset error: ±0.3 mV (max)
    • Offset drift: ±4 µV/°C (max)
    • Nonlinearity: ±0.02% (max)
  • High CMTI: 85 kV/µs (min)
  • System-level diagnostic features
  • Safety-related certifications:
    • 6000-VPK reinforced isolation per DIN VDE V 0884-11 (VDE V 0884-11): 2017-01
    • 4250-VRMS isolation for 1 minute per UL1577
  • Meets CISPR-11 and CISPR-25 EMI standards
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The AMC3330 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 sections of the system that operate on different common-mode voltage levels and protects low-voltage domains from damage.

The input of the AMC3330 is optimized for direct connection to high-impedance, voltage-signal sources such as a resistor-divider network to sense high-voltage signals. The integrated isolated DC/DC converter allows measurement of non-ground-referenced signals and makes the device a unique solution for noisy, space-constrained applications.

The excellent performance of the device supports accurate voltage monitoring and control. The integrated DC/DC converter fault-detection and diagnostic output pin of the AMC3330 simplify system-level design and diagnostics.

The AMC3330 is specified over the temperature range of –40°C to +125°C.

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Technical documentation

Design & development

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Hardware development

document-generic User guide

The AMC3330 evaluation module (EVM) is an evaluation platform for the AMC3330 product, a precision isolated amplifier with an integrated DC/DC converter that powers the high side of the amplifier. AMC3330 is a 7-kV reinforced isolated amplifier designed for use in bipolar voltage-measuring (...)

  • Integrated DC/DC converter for high-side power
  • Reinforced isolated amplifier: 7-kV peak, 10-kV surge
  • Fixed gain of 2
  • ±1-V input range

Design tools & simulation

SBAM446.TSC (78 KB) - TINA-TI Spice Model
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SBAR013A.ZIP (290 KB)

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Ordering & quality

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