AMC1301 ±250 mV-Input Precision Reinforced Isolated Amplifier for Current Sensing | TI.com

AMC1301 (ACTIVE) ±250 mV-Input Precision Reinforced Isolated Amplifier for Current Sensing

 

Learn about our new ±250-mV Input, high CMTI reinforced isolated amplifier for current sensing AMC1300.

The AMC1301 was awarded the 2017 ECN IMPACT Award in the Analog and Mixed Signal ICs category.

Description

The AMC1301 device 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 7 kVPEAK according to VDE V 0884-10 and UL1577. 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 AMC1301 is optimized for direct connection to shunt resistors or other low voltage-level signal sources. The excellent performance of the device supports accurate current control resulting in system-level power savings and, especially in motor control applications, lower torque ripple. The integrated common-mode overvoltage and missing high-side supply voltage detection features of the AMC1301 simplify system-level design and diagnostics.

The AMC1301 is fully specified over the extended industrial temperature range of –40°C to +125°C and is available in a wide-body 8-pin SOIC (DWV) package. The AMC1301S is specified over the temperature range of –55°C to +125°C.

Features

  • ±250-mV Input Voltage Range Optimized for Current Measurement Using Shunt Resistors
  • Low Offset Error and Drift:
    ±200 µV at 25°C, ± 3 µV/°C
  • Fixed Gain: 8.2
  • Very Low Gain Error and Drift:
    ±0.3% at 25°C, ± 50 ppm/°C
  • Very Low Nonlinearity and Drift:
    0.03%, 1 ppm/°C
  • 3.3-V Operation on High-Side and Low-Side
  • System-Level Diagnostic Features
  • Safety-Related Certifications:
    • 7000-VPK Reinforced Isolation per
      DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12
    • 5000-VRMS Isolation for 1 Minute per UL1577
    • CAN/CSA No. 5A-Component Acceptance Service Notice,
      IEC 60950-1, and IEC 60065 End Equipment Standards
  • Fully Specified Over the Extended Industrial Temperature Range

All trademarks are the property of their respective owners.

Parametrics

Compare all products in Isolated amplifiers Email Download to Excel
Part number Order 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)
AMC1301 Order now ±0.25     1000     7000     15     0.2     1     0.3     15     0.03     210     Catalog     -40 to 125
-55 to 125    
AMC1300 Order now ±0.25     1500     7000     15
75    
2
0.2    
1.3
1    
1
0.3    
50
15    
0.03     230
310    
Catalog     -40 to 125
-55 to 125    
AMC1301-Q1 Order now ±0.25     1000     7000     15     0.2     1     0.3     15     0.03     210     Automotive     -40 to 125    
AMC1302 Order now ±0.05     1500     7000     55     0.2     1     0.3     15     0.03     280     Catalog     -55 to 125    
AMC1311 Order now 2     1500     7000     15
75    
9.9
1.5    
20
3    
1
0.3    
30
5    
0.04     220
275    
Catalog     -40 to 125
-55 to 125