AD7193BRUZ 4-channel, 4.8 kHz, ultra-low-noise, 24-bit, sigma-delta ADC with built-in PGA
The AD7193 is a low-noise, complete analog front-end for high-precision measurement applications. It integrates a low-noise, 24-bit sigma-delta analog-to-digital converter (ADC). The low on-chip noise gain stage means that small signals can be input directly.
The device can be configured as either four differential inputs or eight pseudo-differential inputs. The on-chip channel sequencer can enable multiple channels simultaneously, and the AD7193 performs conversion on each enable channel in sequence, which simplifies communication with the device. The on-chip 4.92 MHz clock can be used as a clock source for the ADC; Alternatively, an external clock or crystal oscillator can be used. The output data rate of the device can vary from 4.7 Hz to 4.8 kHz.
The device features a very flexible digital filter and includes a quick settling option. Variables such as output data rate and establishment time depend on the option chosen. For applications that require all transitions to be established, the AD7193 has zero latency.
The device operates from a supply voltage of 3 V to 5.25 V and consumes 4.65 mA in a 28-pin TSSOP package. Applications - PLC/DCS analog input modules
-Data acquisition
- Strain gauge sensor
- Pressure measurement
- Temperature measurement
- Flow measurement
- Electronic scales
- Chromatography
- Medical and scientific instruments