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Automotive 2-V input, reinforced isolated amplifier with high CMTI for voltage sensing

Availability: 506


Package | PIN: SOIC (DWV) | 8
Temp: Q (-40 to 125)
Carrier: Partial Tube
Qty Price
1-9 $8.48
10-24 $7.63
25-99 $7.13
100-249 $6.39
250-499 $5.97
500-749 $5.19
750-999 $4.49
1000+ $4.40


  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating TemperatureRange
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C6
  • 2-V, High-Impedance Input Voltage Range Optimized for Isolated Voltage Measurement
  • Low Offset Error and Drift:
    • AMC1311B-Q1: ±1.5 mV (max), ±15µV/°C (max)
    • AMC1311-Q1: ±9.9 mV (max), ±20 µV/°C(typ)
  • Fixed Gain: 1
  • Very Low Gain Error and Drift:
    • AMC1311B-Q1: ±0.3% (max), ±45 ppm/°C(max)
    • AMC1311-Q1: ±1% (max), ±30 ppm/°C(typ)
  • Low Nonlinearity and Drift: 0.01%, 1 ppm/°C (typ)
  • 3.3-V Operation on High-Side (AMC1311B-Q1)
  • Missing High-Side Supply Indication
  • Safety-Related Certifications:
    • 7000-VPK Reinforced Isolationper DIN V VDE V 0884-11 (VDE V 0884-11): 2017-01
    • 5000-VRMS Isolation for 1Minute per UL1577
    • CAN/CSA No. 5A-Component Acceptance ServiceNotice

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Texas Instruments  AMC1311BQDWVQ1

The AMC1311-Q1 is a precision, isolated amplifier with an outputseparated from the input circuitry by an isolation barrier that is highly resistant to magneticinterference. This barrier is certified to provide reinforced galvanic isolation ofup to 7 kVPEAK according to VDE V 0884-11and UL1577. Used in conjunction with isolated power supplies, this isolated amplifier separatesparts of the system that operate on different common-mode voltage levels and protects lower-voltageparts from damage.

The high-impedance input of the AMC1311-Q1 is optimized for connectionto high-voltage resistive dividers or other voltage signal sources with high output resistance. Theexcellent performance of the device supports accurate, low temperature drift voltage or temperaturesensing and control in closed-loop systems. The integrated missing high-side supply voltagedetection feature simplifies system-level design and diagnostics.

The AMC1311-Q1 is offered with two performance gradeoptions: AMC1311-Q1 and AMC1311B-Q1.