型号AMC1311-Q1
品牌
分类隔离式放大器
描述汽车类 2V 输入、精密电压检测增强型隔离式放大器
相关操作
产品概述

参数

Device type Voltage sensing
Peak-to-peak input voltage range (V) 2
Isolation rating Reinforced
Withstand isolation voltage (VISO) (Vrms) 5000
Working isolation voltage (VIOWM) (Vrms) 1500
Transient isolation voltage (VIOTM) (VPK) 7000
CMTI (min) (kV/µs) 15, 75
Creepage (min) (mm) 8.5
Clearance (min) (mm) 8.5
Input offset (±) (max) (V) 0.0015, 0.0099
Input offset drift (±) (typ) (V/°C) 0.000003, 0.00002
Rating Automotive
Operating temperature range (°C) -40 to 125
TI functional safety category Functional Safety-Capable

封装 | 引脚 | 尺寸

SOIC (DWV) 8 67.275 mm² 5.85 x 11.5

特性

  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • 2-V, high-impedance input voltage range optimized for isolated voltage measurement
  • Fixed gain: 1
  • Low DC errors:
    • AMC1311-Q1:
      • Offset error: ±9.9 mV (maximum)
      • Offset drift: ±20 µV/°C (typical)
      • Gain error: ±1% (maximum)
      • Gain drift: ±30 ppm/°C (typical)
    • AMC1311B-Q1:
      • Offset error: ±1.5 mV (maximum)
      • Offset drift: ±10 µV/°C (maximum)
      • Gain error: ±0.2% (maximum)
      • Gain drift: ±40 ppm/°C (maximum)
    • Nonlinearity: 0.04% (maximum)
  • 3.3-V operation on high-side ( AMC1311B-Q1)
  • High CMTI: 100 kV/µs ( AMC1311B-Q1)
  • Missing high-side supply indication
  • Safety-related certifications:
    • 7000-VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5000-VRMS isolation for 1 minute per UL1577

说明

The AMC1311-Q1 is a precision, isolated amplifier with an output separated from the input circuitry by a capacitive isolation barrier that is highly resistant to magnetic interference. This barrier is certified to provide reinforced galvanic isolation of up to 5kVRMS according to DIN EN IEC 60747-17 (VDE 0884-17) and UL1577 and supports a working voltage of up to 1500 VRMS.

The isolation barrier separates parts of the system that operate on different common-mode voltage levels and protects the low-voltage side from voltages that can cause electrical damage or be harmful to an operator.

The high-impedance input of the AMC1311-Q1 is optimized for connection to high-impedance resistive dividers or any other high-impedance voltage signal source. The excellent DC accuracy and low temperature drift support accurate, isolated voltage sensing and control in closed-loop systems. The integrated missing high-side supply voltage detection feature simplifies system-level design and diagnostics.

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