REF70 Ultra-High-Precision Voltage Reference

Texas Instruments' REF70 is a high-precision voltage reference with ultra-low-noise (0.23 ppm_p-p), a very low-temperature drift coefficient (2 ppm/°C), and high accuracy (±0.025%). The REF70 offers a high PSRR, low drop-out voltage, and excellent load and line regulation to help meet strict transient requirements. This combination of precision and features is designed for applications such as test and measurement that demand a precise reference paired with precision, high-resolution data converters such as ADS8900B, ADS127L01, and DAC11001A achieving optimal performance in the signal chain.

The REF70 is designed for noise-sensitive medical applications such as ultrasounds and x-rays to enable low-noise measurements from the analog front-end. These devices are available in VSSOP and LCCC package options. The LCCC (FKH) is a hermetically-sealed ceramic package that allows for low, long-term drift for applications that require a stable reference over a long period without calibration. The REF70 offers a wide temperature range of -40°C to +125°C enabling operation for various industrial applications.