Microchip has recently launched the MCP6C26, a current sense amplifier that provides input offset voltage correction for very low offset and offset drift. This device offers preset gains of 50, 100, and 200 V/V. The input common-mode range extends from -0.2 V to 36 V (specified), and the power supply operating voltage is from 2.7 V to 5.5 V. This amplifier is available in an SC70 package and is specified over the -40°C to +125°C (E-Temp) range.

The architecture includes an internal Zero-Drift op amp and precision internal resistors. It supports low input errors and allows current sense designs to use shunt resistors of lower value (with lower power dissipation).

Key features

• Single Amplifier: MCP6C26
  • Gains: 50, 100 and 200 V/V
• Bidirectional or Unidirectional
• Input (“Common Mode”) Voltages:
•      -0.2 V to +36 V, Specified
  •  -5 V to +39.5 V, Survival
• Power Supply
  • 2.7 V to 5.5 V
  • Single or Dual (Split) Supplies
• High DC Precision
  • VOS: ±15 µV (typical)
  • CMRR: 129 dB (typical at GDM = 200)
  • PSRR: 136 dB (typical at GDM = 200)
  • Gain Error: ±0.05% (typical)
• POR Protection
  • LV POR for VDD
• Gain-Bandwidth Product: 9 MHz (typical)
• Supply Current
  • IDD = 65 µA (typical)
• Specified Temperature Range
  • -40°C to +125°C

Key applications

• DC-DC Converters
• Battery Management
• USB Power Delivery
• Uninterruptible Power Supplies
• Differential Sensor Conditioning

Click here to learn more about MCP6C26T-050E/LTY