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ADS1255 Datasheet PDF

Part Series:ADS1255 Series
Category:Analog to Digital
Description:TEXAS INSTRUMENTS ADS1255IDBR Analog to Digital Converter, 24Bit, 30KSPS, Single, 4.75V, 5.25V, SSOP
Document:ADS1255IDBRG4 Datasheet PDF (225 Pages)

ADS1255 Datasheet PDF Analog to Digital

45 Pages
TI
24Bit, 30KSPS Very Low Noise Delta-Sigma ADC 20-SSOP -40℃ to 85℃

ADS1255IDBR - TI Specifications

TYPE
DESCRIPTION
Mounting Style
Surface Mount
Number of Pins
20 Pin
Supply Voltage (DC)
4.75V (min)
Case/Package
SSOP-20
Supply Current
36.0 mA
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ADS1255IDBR - TI Function Overview

DESCRIPTION
The ADS1255 and ADS1256 are extremely low-noise, 24-bit analog-to-digital (A/D) converters. They provide complete high-resolution measurement solutions for the most demanding applications. The converter is comprised of a 4th-order, delta-sigma (∆Σ) modulator followed by a programmable digital filter. A flexible input multiplexer handles differential or single-ended signals and includes circuitry to verify the integrity of the external sensor connected to the inputs. 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 programmable filter allows the user to optimize between a resolution of up to 23 bits noise-free and a data rate of up to 30k samples per second (SPS). The converters offer fast channel cycling for measuring multiplexed inputs and can also perform one-shot conversions that settle in just a single cycle.
FEATURES
24 Bits, No Missing Codes
 − All Data Rates and PGA Settings
Up to 23 Bits Noise-Free Resolution
±0.0010% Nonlinearity (max)
Data Output Rates to 30kSPS
Fast Channel Cycling
 − 18.6 Bits Noise-Free (21.3 Effective Bits) at 1.45kHz
One-Shot Conversions with Single-Cycle Settling
Flexible Input Multiplexer with Sensor Detect
 − Four Differential Inputs (ADS1256 only)
 − Eight Single-Ended Inputs (ADS1256 only)
Chopper-Stabilized Input Buffer
Low-Noise PGA: 27nV Input-Referred Noise
Self and System Calibration for All PGA Settings
5V Tolerant SPI-Compatible Serial Interface
Analog Supply: 5V
Digital Supply: 1.8V to 3.6V
Power Dissipation
 − As Low as 38mW in Normal Mode
 − 0.4mW in Standby Mode
APPLICATIONS
Weigh Scales
Scientific Instrumentation
Industrial Process Control
Medical Equipment
Test and Measurement
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