Product Summary

The ADS1256IDBRG4 is an extremely low-noise, 24-bit analog-to-digital (A/D) converter. The ADS1256IDBRG4 provides complete high-resolution measurement solutions for the most demanding applications. The ADS1256IDBRG4 is comprised of a 4th-order, delta-sigma modulator followed by a programmable digital filter. The selectable input buffer greatly increases the input impedance and the low-noise programmable gain amplifier (PGA) provides gains from 1 to 64 in binary steps. The ADS1256IDBRG4 offers fast channel cycling for measuring multiplexed inputs and can also perform one-shot conversions that settle in just a single cycle. The applications of the ADS1256IDBRG4 include Scientific Instrumentation, Industrial Process Control, Medical Equipment, Test and Measurement and Weigh Scales.

Parametrics

ADS1256IDBRG4 absolute maximum ratings: (1)AVDD to AGND: -0.3 to +6 V; (2)DVDD to DGND: -0.3 to +3.6 V; (3)AGND to DGND: -0.3 to +0.3 V; (4)Input Current: 100mA, Momentary; 10mA, Continuous; (5)Analog inputs to AGND: -0.3 to AVDD + 0.3 V; (6)Digital inputs: DIN, SCLK, CS, RESET, SYNC/PDWN, XTAL1/CLKIN to DGND: -0.3 to +6 V; D0/CLKOUT, D1, D2, D3 to DGND: -0.3 to DVDD + 0.3 V; (7)Maximum Junction Temperature: +150℃; (8)Operating Temperature Range: -40 to +105℃; (9)Storage Temperature Range: -60 to +150℃; (10)Lead Temperature (soldering, 10s): +300℃.

Features

ADS1256IDBRG4 features: (1)24 Bits, No Missing Codes: All Data Rates and PGA Settings; (2)Up to 23 Bits Noise-Free Resolution; (3)±0.0010% Nonlinearity (max); (4)Data Output Rates to 30kSPS; (5)Fast Channel Cycling; (6)18.6 Bits Noise-Free (21.3 Effective Bits) at 1.45kHz; (7)One-Shot Conversions with Single-Cycle Settling; (8)Flexible Input Multiplexer with Sensor Detect; (9)Four Differential Inputs; (10)Eight Single-Ended Inputs; (11)Chopper-Stabilized Input Buffer; (12)Low-Noise PGA: 27nV Input-Referred Noise; (13)Self and System Calibration for All PGA; (14)Settings; (15)5V Tolerant SPI-Compatible Serial Interface; (16)Analog Supply: 5V; (17)Digital Supply: 1.8V to 3.6V; (18)Power Dissipation: As Low as 38mW in Normal Mode; 0.4mW in Standby Mode.

Diagrams

ADS1256IDBRG4 block diagram

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