ADS1255IDB - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

ADS1255IDB
Manufacturer

TI
ChipWorker Part#

CW192379880
Category

Analog to Digital, ADC IC
Package

SSOP-20
Description

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

Datasheet

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ADS1255IDB Specifications

Attribute	Attribute Value

Part Number	ADS1255IDB
Manufacturer	TI
ChipWorker Part#	CW192379880
Category	Analog to Digital, ADC IC
Documentation	Datasheet
Case/Package	SSOP-20
Power Consumption	36.0 mW
	expand all
Product Lifecycle Status	Active
RoHS	RoHS Compliant
Lead-Free Status	Lead Free

Product Description

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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