OPAx180-Q1 0.1-μV/°C Drift, Low-Noise, Rail-to-Rail Output, 36-V, Zero-Drift Operational Amplifiers

1 Features

• Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
  • OPA180-Q1 Device Temperature Grade 1:
    –40°C to +125°C Ambient Operating Temperature Range
  • OPA2180-Q1 Device Temperature Grade 2:
    –40°C to +105°C Ambient Operating Temperature Range
  • Device HBM ESD Classification Level 1C
  • Device CDM ESD Classification Level C5
  • Wide Supply Range: ±2 V to ±18 V
  • Low Offset Voltage: 75 μV (Maximum)
  • Zero Drift: 0.1 μV/°C
  • Low Noise: 10 nV/√Hz
  • Very Low 1/f Noise
  • Excellent DC Precision:
    • PSRR: 126 dB
    • CMRR: 114 dB
    • Open-Loop Gain (A_OL): 120 dB
  • Quiescent Current: 525 μA (Maximum)
  • Rail-to-Rail Output:
    Input Includes Negative Rail
  • Low Bias Current: 250 pA (Typical)
  • RFI Filtered Inputs
  • MicroSIZE Packages

2 Applications

• Automotive Precision Current Measurements
• Onboard Chargers (OBC)
• Battery Management Systems (BMS)
• Motor Control
• Traction Inverters

3 Description

The OPA180-Q1 and OPA2180-Q1 operational amplifiers (op amps) use TI's proprietary zero-drift techniques to simultaneously provide low offset voltage (75 μV), and near zero-drift over time and temperature. These miniature, high-precision, low-quiescent-current op amps offer high input impedance and rail-to-rail output swing within 18 mV of the rails. The input common-mode range includes the negative rail. Single- or dual-supplies ranging from 4 V to 36 V (±2 V to ±18 V) can be used.

The single-channel and dual-channel versions are offered in VSSOP-8 packages. The single package offering (OPA180-Q1) is specified from –40°C to +125°C, and the dual package (OPA2180-Q1) is specified from –40°C to +105°C.

1. For all available packages, see the orderable addendum at the end of the data sheet.

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Low Noise
(Peak-to-Peak Noise = 250 nV)