AMC1211-Q1

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Automotive high-impedance, 2-V input, basic isolated amplifier for voltage sensing

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Product details

Parameters

Input range (Vp-p) 2 Isolation working voltage VIOWM (rms) (V) 1000 Isolation transient overvoltage VIOTM (peak) (V) 4250 CMTI (Min) (kV/µs) 30 Input offset (+/-) (Max) (mV) 1.5 Input offset drift (+/-) (Typ) (uV/C) 3 Gain error (+/-) (Max) (%) 0.3 Gain error drift (+/-) (Typ) (ppm/°C) 5 Gain non-linearity (+/-) (Max) (%) 0.04 Small signal bandwidth (Typ) (kHz) 275 Rating Automotive Operating temperature range (C) -40 to 125 TI functional safety category Functional Safety-Capable open-in-new Find other Isolated amplifiers

Package | Pins | Size

SOIC (DWV) 8 67 mm² 5.85 x 11.5 open-in-new Find other Isolated amplifiers

Features

  • 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:
    • ±1.5 mV (max), ±10 µV/°C (max)
  • Fixed gain: 1
  • Very low gain error and drift:
    • ±0.2% (max), ±40 ppm/°C (max)
  • Low nonlinearity and drift: 0.01%, 1 ppm/°C (typ)
  • 3.3-V operation on high-side
  • Missing high-side supply indication
  • Safety-related certifications:
    • 4250-VPK basic isolation per DIN VDE V 0884-11 (VDE V 0884-11): 2017-01
    • 3000-VRMS isolation for 1 minute per UL1577
    • CAN/CSA no. 5A-component acceptance service notice

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Description

The AMC1211A-Q1 is a precision, isolated amplifier with an output separated from the input circuitry by an isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide basic galvanic isolation of up to 4.25 kVPEAK according to VDE V 0884-11 and UL1577. Used in conjunction with isolated power supplies, this isolated amplifier separates parts of the system that operate on different common-mode voltage levels and protects lower-voltage parts from damage.

The high-impedance input of the AMC1211A-Q1 is optimized for connection to high-voltage resistive dividers or other voltage signal sources with high output resistance. The excellent performance of the device supports accurate, low temperature drift voltage or temperature sensing and control in closed-loop systems. The integrated missing high-side supply voltage detection feature simplifies system-level design and diagnostics.

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Technical documentation

Design & development

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Hardware development

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

The AMC1311 device is a high-voltage isolation amplifier with a differential output separated from the input interface circuitry by a silicon dioxide (SiO2) isolation barrier. The isolation barrier provides galvanic isolation of up to 7000 VPEAK.  When used in combination with TLV6001, the (...)

Features
  • Full-featured evaluation board for AMC1311 single-channel isolation amplifier
  • Single-ended output option
  • Screw terminals for easy access to analog inputs and outputs
  • Configurable AVDD and DVDD power supplies

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Package Pins Download
SOIC (DWV) 8 View options

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