AMC1302-Q1 - Automotive precision reinforced isolated amplifier with ±50mV input and high CMTI

Updated : 2020-01-09 14:32:07
Description

The AMC1302-Q1 is aprecision isolated amplifier with a capacitive isolation barrier that has high immunity to magneticinterference. This barrier provides reinforced isolation of 5 kVRMS(maximum) with a very long lifetime and low power dissipation. When used with isolated powersupplies, this device isolates components that operate on different common-mode voltage levels.Furthermore, the AMC1302-Q1 alsoprotects lower-voltage devices from damage.

The input of the AMC1302-Q1 is optimized for direct connection to shunt resistors or otherlow voltage-level signal sources. The ±50-mV input voltage range allows significant reduction ofthe power dissipation through the shunt. Additionally, the low high-side supply current and voltageof the AMC1302-Q1 allow use oflow-cost isolated power-supply solutions. The performance of the device supports accurate currentcontrol resulting in system-level power savings and in low torque ripple that is particularlyimportant in motor control applications. The integrated input common-mode overvoltage and missinghigh-side supply voltage detection features of the AMC1302-Q1 simplify system-level diagnostics.

Features

  • AEC-Q100 Qualified for Automotive Applications:
    • Temperature Grade 1: –40°C to 125°C, TA
  • ±50-mV Input Voltage Range for Low Dissipation, Shunt-Resistor-Based Current Measurement
  • Fixed Gain With Low Drift: 41 ± 0.3%, ±50 ppm/°C
  • Low Input Offset and Drift: ±100 µV, ±0.8 µV/°C
  • Low Nonlinearity and Drift: ±0.03%, ±1 ppm/°C
  • Very Low Isolated High-Side Power Dissipation When Operated From a 3.3-V Supply
  • System-Level Diagnostic Features
  • Safety-Related Certifications:
    • 7071-VPK Reinforced Isolation per DIN V VDE V 0884-11 (VDE V 0884-11): 2017-01
    • 5000-VRMS Isolation for 1 Minute per UL1577
    • CAN/CSA No. 5A-Component Acceptance Service Notice
  • High CMTI: 140 kV/µs (typ), 70 kV/µs (min)

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Parametrics
StatusACTIVE
SubFamilyIsolated amplifiers
Isolation rating
Surge Voltage Rating
DIN V VDE V 0884-10 transient overvoltage rating
DIN V VDE V 0884-10 working voltage
CSA 60950-1 basic working
CSA 60950-1 reinforced working
CSA 61010-1 basic working
CSA 61010-1 reinforced working
CSA 60601-1 reinforced working
CSA isolation rating
TUV EN 60950-1 Basic Working
TUV EN 60950-1 Reinforced Working
TUV EN 61010-1 Basic Working
TUV EN 61010-1 Reinforced Working
TUV Isolation Rating
Operating temperature range-40 to 125
Package GroupSOIC|8
Package size: mm2:W x L (PKG)[pf]8SOIC[/pf]: 67 mm2: 11.5 x 5.85 (SOIC|8)
Approx. price3.76 | 1ku
RatingAutomotive