Features for the OPA388

• Ultra-low offset voltage: ±0.25 µV
• Zero drift: ±0.005 µV/°C
• Zero crossover: 140-dB CMRR true RRIO
• Low noise: 7.0 nV√Hz at 1 kHz
• No 1/f noise: 140 nVPP (0.1 Hz to 10 Hz)
• Fast settling: 2 µs (1 V to 0.01%)
• Gain bandwidth: 10 MHz
• Single supply: 2.5 V to 5.5 V
• Dual supply: ±1.25 V to ±2.75 V
• True rail-to-rail input and output
• EMI/RFI filtered inputs
• Industry-standard packages:
  • Single in SOIC-8, SOT-23-5, and VSSOP-8
  • Dual in SOIC-8 and VSSOP-8
  • Quad in SOIC-14 and TSSOP-14

Description for the OPA388

The OPAx388 (OPA388, OPA2388, and OPA4388) series of precision operational amplifiers are ultra-low noise, fast-settling, zero-drift, zero-crossover devices that provide rail-to-rail input and output operation. These features and excellent ac performance, combined with only 0.25 µV of offset and 0.005 µV/°C of drift over temperature, makes the OPAx388 a great choice for driving high-precision, analog-to-digital converters (ADCs) or buffering the output of high-resolution, digital-to-analog converters (DACs). This design results in excellent performance when driving analog-to-digital converters (ADCs) without degradation of linearity. The OPA388 (single version) is available in the VSSOP-8, SOT23-5, and SOIC-8 packages. The OPA2388 (dual version) is offered in the VSSOP-8 and SO-8 packages. The OPA4388 (quad version) is offered in the TSSOP-14 and SO-14 packages. All versions are specified over the industrial temperature range of –40°C to +125°C.