AMC1200-Q1 Automotive, 4kV (Peak) Isolated Amplifier for Current Shunt Measurements | TI.com

AMC1200-Q1 (ACTIVE)

Automotive, 4kV (Peak) Isolated Amplifier for Current Shunt Measurements

 

Learn about our reinforced isolated amplifier for current sensing  AMC1301-Q1.

Description

The AMC1200-Q1 is a precision isolation amplifier with the output separated from the input circuitry by a silicon dioxide (SiO2) barrier that is highly resistant to magnetic interference. This barrier is certified to provide galvanic isolation of up to 4250 VPEAK according to UL1577 and VDE V 0884-10. Used in conjunction with isolated power supplies, this device prevents noise currents on a high common-mode voltage line from entering the local ground and interfering with or damaging sensitive circuitry.

The input of the AMC1200-Q1 is optimized for direct connection to shunt resistors or other low-voltage level signal sources. The performance of the device supports accurate current control, resulting in systemlevel power saving and (especially in motor-control applications) lower torque ripple. The common-mode voltage of the output signal is automatically adjusted to either the 3-V or 5-V low-side supply.

The AMC1200-Q1 is available in a wide-body, 8-pin SOIC package (DWV) and a gullwing, 8-pin SOP package (DUB).

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Temperature Grade 2: –40°C to 105°C
    • HBM ESD Classification Level H2
    • CDM ESD Classification Level C3B
  • ±250-mV Input Voltage Range Optimized for
    Shunt Resistors
  • Very Low Nonlinearity: 0.075% (max)
    with 5-V High-Side Supply
  • Low Offset Error: 1.5 mV (max)
  • Low Noise: 3.1 mVRMS (typical)
  • Low High-Side Supply Current:
    8 mA (max) at 5 V
  • Input Bandwidth: 60 kHz (min)
  • Fixed Gain: 8 (0.5% accuracy)
  • High Common-Mode Rejection Ratio:
    108 dB (typical)
  • 3.3-V Operation on Low-Side
  • Certified Galvanic Isolation:
    • UL1577 and VDE V 0884-10 Approved
    • Isolation Voltage: 4250 VPEAK
    • Working Voltage: 1200 VPEAK
    • Transient Immunity: 10 kV/\xECs (min)
  • Typical 10-Year Lifespan at Rated Working
    Voltage (see Application Report, SLLA197

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Parametrics Compare all products in Isolated amplifiers

 
Input range (Vp-p)
Isolation working voltage VIOWM (rms) (V)
Isolation transient overvoltage VIOTM (peak) (V)
CMTI (Min) (kV/µs)
Input offset (+/-) (Max) (mV)
Input offset drift (+/-) (Typ) (uV/C)
Gain error (+/-) (Max) (%)
Gain error drift (+/-) (Typ) (ppm/°C)
Gain non-linearity (+/-) (Max) (%)
Small Signal Bandwidth (Typ) (kHz)
Rating
Operating temperature range (C)
AMC1200-Q1 AMC1100 AMC1200 AMC1301-Q1
±0.25     ±0.25     ±0.25     ±0.25    
800     800     800     1000    
4250     4250     4250     7000    
10     2.5     10     15    
1.5     1.5     1.5     0.2    
1.5     1.5     1.5     1    
1     1     1     0.3    
56     56     56     15    
0.075     0.075     0.075     0.03    
100     100     100     210    
Automotive     Catalog     Catalog     Automotive    
-40 to 105     -40 to 105     -40 to 105     -40 to 125