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AMC1300B-Q1
  • AMC1300B-Q1
  • AMC1300B-Q1
  • AMC1300B-Q1

AMC1300B-Q1

ACTIVE

Automotive, ±250-mV input, precision current sensing reinforced isolated amplifier

Texas Instruments AMC1300B-Q1 Product Info

1 April 2026 3

Parameters

Device type

Current sensing

Output type

Differential

Peak-to-peak input voltage range (V)

0.25

Isolation rating

Reinforced

Withstand isolation voltage (VISO) (Vrms)

5000

Working isolation voltage (VIOWM) (Vrms)

1500

Transient isolation voltage (VIOTM) (VPK)

7071

CMTI (min) (kV/µs)

75

Creepage (min) (mm)

8.5

Clearance (min) (mm)

8.5

Input offset (±) (max) (V)

0.0002

Input offset drift (±) (typ) (µV/°C)

1

Rating

Automotive

Operating temperature range (°C)

-40 to 125

TI functional safety category

Functional Safety-Capable

Package

SOIC (DWV)-8-67.275 mm² 5.85 x 11.5

Features

  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to 125°C, TA
  • Functional Safety-Capable
  • ±250-mV input voltage range optimized for current measurements using shunt resistors
  • Fixed gain: 8.2 V/V
  • Low DC errors:
    • Offset error: ±0.2 mV (max)
    • Offset drift: ±0.9 µV/°C (max)
    • Gain error: ±0.3% (max)
    • Gain drift: ±30 ppm/°C (max)
    • Nonlinearity: 0.03% (max)
  • 3.3-V or 5-V operation on high-side and low-side
  • Fail-safe output
  • High CMTI: 100 kV/µs (min)
  • Low EMI, meets CISPR-11 and CISPR-25 standards
  • Safety-related certifications:
    • 7071-VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5000-VRMS isolation for 1 minute per UL1577
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to 125°C, TA
  • Functional Safety-Capable
  • ±250-mV input voltage range optimized for current measurements using shunt resistors
  • Fixed gain: 8.2 V/V
  • Low DC errors:
    • Offset error: ±0.2 mV (max)
    • Offset drift: ±0.9 µV/°C (max)
    • Gain error: ±0.3% (max)
    • Gain drift: ±30 ppm/°C (max)
    • Nonlinearity: 0.03% (max)
  • 3.3-V or 5-V operation on high-side and low-side
  • Fail-safe output
  • High CMTI: 100 kV/µs (min)
  • Low EMI, meets CISPR-11 and CISPR-25 standards
  • Safety-related certifications:
    • 7071-VPK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
    • 5000-VRMS isolation for 1 minute per UL1577

Description

The AMC1300B-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 reinforced galvanic isolation of up to 5 kVRMS according to DIN EN IEC 60747-17 (VDE 0884-17) and UL1577, and supports a working voltage of up to 1.5 kVRMS.

The isolation barrier separates parts of the system that operate on different common-mode voltage levels and protects the low-voltage side from hazardous voltages and damage.

The input of the AMC1300B-Q1 is optimized for direct connection to a low-impedance shunt resistor or other low-impedance voltage source with low signal levels. The excellent DC accuracy and low temperature drift supports accurate current control in PFC stages, DC/DC converters, traction inverters, and OBCs over the full automotive temperature range from –40°C to +125°C.

The integrated missing-shunt and missing high-side supply detection features simplify system-level design and diagnostics.

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