CS5523
Features
- Low
General Description
The CS5521/22/23/24/28 are highly integrated ΔΣ analog-to-digital converters (ADCs) which use chargebalance techniques to achieve 16-bit (CS5521/23) and 24-bit (CS5522/24/28) performance. The ADCs e as either two-channel (CS5521/22), four-channel (CS5523/24), or eight-channel (CS5528) devices and include a low-input-current, chopper-stabilized instrumentation amplifier. To permit selectable input spans of 25 m V, 55 m V, 100 m V, 1 V, 2.5 V, and 5 V, the ADCs include a PGA (programmable gain amplifier). To acmodate ground-based thermocouple applications, the devices include a charge pump drive which provides a negative bias voltage to the on-chip amplifiers. These devices also include a fourth-order ΔΣ modulator followed by a digital filter which provides eight selectable output word rates. The digital filters are designed to settle to full accuracy within one conversion cycle and when operated at word rates below 30 Sps, they reject both 50 Hz and 60...
