The ADS125H02 is a ±20-V input, 24-bit, delta-sigma (ΔΣ) analog-to-digital converter
(ADC). The ADC features a low-noise programmable gain amplifier (PGA), an internal reference, clock
oscillator, and signal or reference out-of-range monitors.
The integration of a wide input range, ±18-V PGA and an ADC into a single package reduces
board area up to 50% compared to discrete solutions.
Programmable gain of 0.125 to 128 (corresponding to an equivalent input range from ±20 V
to ±20 mV) eliminates the need for an external attenuator or external gain stages. 1-GΩ minimum
input impedance reduces error caused by sensor loading. Additionally, the low noise and low drift
performance allow direct connections to bridge, resistance temperature detector (RTD), and
The digital filter attenuates 50-Hz and 60-Hz line cycle noise for data rates ≤ 50 SPS
or 60 SPS to reduce measurement error. The filter also provides no-latency conversion data for high
data throughput during channel sequencing.
The ADS125H02 is housed in a 5-mm × 5-mm VQFN package and is fully specified over the
–40°C to +125°C temperature range.