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

Inventory: 6,445
Custom reel may be available

Download data sheet for AMC1311-Q1
  |   View additional information for AMC1311-Q1

Packaging information

Package | Pins SOIC (DWV) | 8
Operating temperature range (℃) Q (-40 to 125)
Package qty | Carrier: 1,000 | LARGE T&R
Custom reel may be available
View more packaging information

Quality information

RoHS Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow Level-3-260C-168 HR
Material content View
DPPM / MTBF / Fit rate View
Qualification summary View
Ongoing reliability monitoring View
Device marking View


  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • 2-V, high-impedance input voltage range optimized for isolated voltage measurement
  • Low offset error and drift:
    • AMC1311B-Q1: ±1.5 mV (max), ±10 µV/°C(max)
    • AMC1311-Q1: ±9.9 mV (max), ±20 µV/°C (typ)
  • Fixed gain: 1
  • Very low gain error and drift:
    • AMC1311B-Q1: ±0.2% (max), ±40 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 VDE V 0884-11: 2017-01
    • 5000-VRMS isolation for 1minute per UL1577
    • CAN/CSA no. 5A-component acceptance servicenotice

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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.

Qty Price
1-99 $5.06
100-249 $4.13
250-999 $3.25
1,000+ $2.75