The ADS1262 and ADS1263 are low-noise, low-drift, 38.4-kSPS, delta-sigma (ΔΣ) ADCs with an integrated PGA, reference, and internal fault monitors. The ADS1263 integrates an auxiliary, 24-bit, ΔΣ ADC intended for background measurements. The sensor-ready ADCs provide complete, high-accuracy, one-chip measurement solutions for the most-demanding sensor applications, including weigh scales, strain-gauge sensors, thermocouples, and resistance temperature devices (RTD).
The ADCs are comprised of a low-noise, CMOS PGA (gains 1 to 32), a ΔΣ modulator, followed by a programmable digital filter. The flexible analog front-end (AFE) incorporates two sensor-excitation current sources suitable for direct RTD measurement.
A single-cycle settling digital filter maximizes multiple-input conversion throughput, while providing 130-dB rejection of 50-Hz and 60-Hz line cycle interference.
The ADS1262 and ADS1263 are pin and functional compatible. These devices are available in a 28-pin TSSOP package and are fully specified over the –40°C to +125°C temperature range.
|Sample Rate (max) (SPS)|
|# Input Channels|
|Power Consumption (Typ) (mW)|
|Input Range (Min) (V)|
|Input Range (Max) (V)|
|Analog Voltage AVDD (Min) (V)|
|Analog Voltage AVDD (Max) (V)|
|Operating Temperature Range (C)|
| Differential |
| -2.5 |
| 2.5 |
| 50/60 Hz Rejection |
Excitation Current Sources (iDACs)
|-40 to 125|
| Ext |