Texas Instruments ADS1254 24-Bit, 20kHz, Low-Power Analog-to-Digital Converter Data Sheet User Manual
Summary
This high-resolution, low-power 24-bit Analog-to-Digital Converter features a delta-sigma architecture, providing exceptional precision and wide dynamic range ideal for sensitive measurements. The product is designed for critical industrial and medical applications, including cardiac diagnostics, smart transmitters, chromatography, and process control systems. This summary details the full technical specifications, performance curves (like resolution and linearity), operating parameters, and application guidelines to help engineers integrate this reliable data acquisition solution into their portable instrumentation designs.
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ADS1254
ADS1254
SBAS213 – JUNE 2001
24-Bit, 20k Hz, Low Power ANALOG-TO-DIGITAL CONVERTER
FEATURES DESCRIPTION 24 BITS—NO MISSING CODES The ADS1254 is a precision, wide dynamic range, delta- sigma, Analog-to-Digital (A/D) converter with 24-bit reso-
19 BITS EFFECTIVE RESOLUTION UP TO
lution. The delta-sigma architecture is used for wide dy-
20k Hz DATA RATE
namic range and to ensure 24 bits of no missing codes
LOW NOISE: 1.8ppm
performance. An effective resolution of 19 bits (1.8ppm of
FOUR DIFFERENTIAL INPUTS
rms noise) is achieved for conversion rates up to 20k Hz.
INL: 15ppm (max)
The ADS1254 is designed for high-resolution measurement EXTERNAL REFERENCE (0.5V to 5V) applications in cardiac diagnostics, smart transmitters, in- dustrial process control, weight scales, chromatography, and
POWER-DOWN MODE
portable instrumentation. The converter includes a flexible,
SYNC MODE
two-wire synchronous serial interface for low-cost isolation.
LOW POWER: 4m W at 20k Hz
The ADS1254 is a multi-channel converter and is offered in
SEPARATE DIGITAL INTERFACE SUPPLY 1.8V
an SSOP-20 package.
to 3.6V
APPLICATIONS CARDIAC DIAGNOSTICS DIRECT THERMOCOUPLE INTERFACES BLOOD ANALYSIS INFRARED PYROMETERS LIQUID/GAS CHROMATOGRAPHY PRECISION PROCESS CONTROL
ADS1254
CH1+ VREF
CH2– 4th-Order
Digital Serial
Mux ∆Σ
CH3+ Filter Interface DOUT/DRDY
Modulator
CH4– DVDD
Control
CHSEL0 CHSEL1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date. Copyright © 2001, Texas Instruments Incorporated Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
www.ti.com
Page Summary Contents For Texas Instruments ADS1254 24-Bit, 20kHz, Low-Power Analog-to-Digital Converter Data Sheet User Manual
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 17 |
| File Size | 279.12 KB |
| Published | June 17, 2026 |
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Frequently Asked Questions
What is the ADS1254's effective resolution and noise performance?
It achieves 19 bits effective resolution with low noise (1.8 ppm of FSR root mean square).
What industrial or medical applications are supported by this converter?
It is designed for cardiac diagnostics, smart transmitters, process control, and blood analysis.
How power efficient is the ADS1254 during operation?
Operation remains low power, consuming only 4mW at a 20kHz data rate.