24-bit, 400-kSPS, delta-sigma ADC with easy-to-drive inputs and wideband or low-latency filters | PW | 20 | -40 to 125

The ADS127L11 is a 24-bit, delta-sigma (ΔΣ), analog-to-digital converter (ADC)

with data rates up to 400 kSPS using the wideband filter and up to 1067 kSPS using

the low-latency filter. The device offers an excellent combination of ac performance

and dc precision with low power consumption (18.6 mW in high-speed mode).

The device integrates input and

reference buffers to reduce signal loading. The low-drift modulator achieves

excellent dc precision with low in-band noise for outstanding ac performance. The

power-scalable architecture provides two speed modes to optimize data rate,

resolution, and power consumption.

The digital filter is configurable for

wideband or low-latency operation, allowing wideband ac performance or data

throughput for dc signals to be optimized, all in one device.

The serial interface features

daisy-chain capability to reduce the SPI I/O over an isolation barrier. Input and

output data and register settings are validated by a cyclic-redundancy check (CRC)

feature to enhance operational reliability.

The small 3-mm × 3-mm WQFN and 6.5-mm

× 4.4-mm TSSOP packages are designed for limited space applications. The device is

fully specified for operation over the –40°C to +125°C temperature range.