Overview
The ADS1256IDBRG4, produced by Texas Instruments, is an extremely low-noise, 24-bit analog-to-digital (A/D) converter. It provides complete high-resolution measurement solutions for the most demanding applications. The converter is comprised of a 4th-order, delta-sigma (ΔΣ) modulator followed by a programmable digital filter. This configuration allows for high-resolution measurements with flexible input handling and advanced calibration features.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 24 Bits, No Missing Codes |
| Noise-Free Resolution | Up to 23 Bits |
| Nonlinearity | ±0.0010% (max) |
| Data Output Rates | Up to 30k SPS |
| Input Types | Four Differential Inputs, Eight Single-Ended Inputs |
| Input Buffer | Chopper-Stabilized Input Buffer |
| Programmable Gain Amplifier (PGA) | Gains from 1 to 64 in binary steps, 27nV Input-Referred Noise |
| Analog Supply | 5V |
| Digital Supply | 1.8V to 3.6V |
| Power Dissipation | As low as 38mW in Normal Mode, 0.4mW in Standby Mode |
| Package | SSOP-28 |
| Operating Temperature Range | -40°C to 85°C |
Key Features
- Fast Channel Cycling for measuring multiplexed inputs
- One-Shot Conversions with Single-Cycle Settling
- Flexible Input Multiplexer with Sensor Detect
- Self and System Calibration for All PGA Settings
- 5V Tolerant SPI-Compatible Serial Interface
- Bidirectional Digital I/Os and Programmable Clock Output Driver
- Low-Noise PGA with gains from 1 to 64 in binary steps
Applications
The ADS1256IDBRG4 is suitable for a variety of high-resolution measurement applications, including:
- Factory Automation
- Process Control
- Industrial Measurement Systems
- Medical Devices
- Test and Measurement Equipment
Q & A
- What is the resolution of the ADS1256IDBRG4?
The ADS1256IDBRG4 has a 24-bit resolution with no missing codes.
- What are the data output rates of the ADS1256IDBRG4?
The data output rates can go up to 30k samples per second (SPS).
- What types of inputs does the ADS1256IDBRG4 support?
The ADS1256IDBRG4 supports four differential inputs and eight single-ended inputs.
- What is the input-referred noise of the PGA in the ADS1256IDBRG4?
The PGA has an input-referred noise of 27nV.
- What is the power dissipation of the ADS1256IDBRG4 in normal and standby modes?
In normal mode, the power dissipation is as low as 38mW, and in standby mode, it is 0.4mW.
- What is the operating temperature range of the ADS1256IDBRG4?
The operating temperature range is -40°C to 85°C.
- Does the ADS1256IDBRG4 support self and system calibration?
- What type of serial interface does the ADS1256IDBRG4 use?
The ADS1256IDBRG4 uses a 5V tolerant SPI-compatible serial interface.
- What is the package type of the ADS1256IDBRG4?
The ADS1256IDBRG4 is packaged in an SSOP-28.
- What are some typical applications of the ADS1256IDBRG4?
Typical applications include factory automation, process control, industrial measurement systems, medical devices, and test and measurement equipment.
