Analog Devices / Maxim Integrated MAX6126 Voltage References

Analog Devices Inc. MAX6126 Voltage References are ultra-low-noise, high-precision, low-dropout voltage references. This family of voltage references features curvature-correction circuitry and high-stability, laser-trimmed, thin-film resistors that result in 3ppm/°C (max) temperature coefficients and an excellent ±0.02% (max) initial accuracy. The proprietary low-noise reference architecture produces a low flicker noise of 1.3µVP-P and wideband noise as low as 60nV/√Hz (2.048V output) without the increased supply current usually found in low-noise references. Improve wideband noise to 35nV/√Hz and AC power-supply rejection by adding a 0.1µF capacitor at the noise reduction pin. ADI MAX6126 series mode reference operates from a wide 2.7V to 12.6V supply voltage range, and load-regulation specifications are guaranteed to be less than 0.025Ω for sink and source currents up to 10mA. These devices are available over the automotive temperature range of -40°C to +125°C.

Features

  • Ultra-low 1.3µVP-P noise (0.1Hz to 10Hz, 2.048V Output)
  • Ultra-low 3ppm/°C (max) temperature coefficient
  • ±0.02% (max) initial accuracy
  • Wide (VOUT + 200mV) to 12.6V supply voltage range
  • Low 200mV (max) dropout voltage
  • 380µA Quiescent supply current
  • 10mA Sink/Source-current capability
  • Stable with CLOAD = 0.1µF to 10µF
  • Low 20ppm/1000hr long-term stability
  • 0.025Ω (max) load regulation
  • 20µV/V (max) line regulation
  • Force and sense outputs for remote sensing

Applications

  • Automated Test Equipment (ATE)
  • Digital voltmeters
  • High-accuracy industrial and process control
  • High-accuracy reference standard
  • High-resolution A/D and D/A converters
  • Precision current sources

Typical Operating Circuit

Analog Devices / Maxim Integrated MAX6126 Voltage References
Publicerad: 2019-10-25 | Uppdaterad: 2023-04-27