ADS1240E/1K ,24-Bit Analog-to-Digital ConverterBlock Diagram, RANGE = 0 ±V /PGA VREFRANGE = 1 ±V /(2 • PGA) VREFInput Impedance Buffer OFF 5/PGA M ..
ADS1240E/1KG4 ,24-Bit Analog-to-Digital Converter 24-SSOP -40 to 85FEATURES* 24 BITS NO MISSING CODESThe ADS1240 and ADS1241 are precision, wide dynamic range,delta-s ..
ADS1240E/1KG4 ,24-Bit Analog-to-Digital Converter 24-SSOP -40 to 85ELECTRICAL CHARACTERISTICS: AV = 5VDDAll specifications T to T , AV = +5V, DV = +2.7V to 5.25V, f = ..
ADS1240EG4 ,24-Bit Analog-to-Digital Converter 24-SSOP -40 to 85.DIGITAL CHARACTERISTICS: –40°C to +85°C, DV 2.7V to 5.25VDDPARAMETER CONDITIONS MIN TYP MAX UNITSD ..
ADS1240EG4 ,24-Bit Analog-to-Digital Converter 24-SSOP -40 to 85ELECTRICAL CHARACTERISTICS: AV = 3VDDAll specifications –40°C to +85°C, AV = +3V, DV = +2.7V to 5.2 ..
ADS1241 ,24-Bit Analog-to-Digital ConverterFEATURES* 24 BITS NO MISSING CODESThe ADS1240 and ADS1241 are precision, wide dynamic range,delta-s ..
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ADS1240-ADS1240E-ADS1240E/1K-ADS1240E/1KG4-ADS1240EG4
24-Bit Analog-to-Digital Converter
24-Bit
ANALOG-TO-DIGIT AL CONVERTER
FEATURES 24 BITS NO MISSING CODES SIMULTANEOUS 50Hz AND 60Hz REJECTION
(–90dB MINIMUM) 0.0015% INL 21 BITS EFFECTIVE RESOLUTION
(PGA = 1), 19 BITS (PGA = 128) PGA GAINS FROM 1 TO 128 SINGLE CYCLE SETTLING PROGRAMMABLE DATA OUTPUT RATES EXTERNAL DIFFERENTIAL REFERENCE
OF 0.1V TO 5V ON-CHIP CALIBRATION SPI™ COMPATIBLE 2.7V TO 5.25V SUPPLY RANGE 600μW POWER CONSUMPTION UP TO EIGHT INPUT CHANNELS UP TO EIGHT DATA I/O
DESCRIPTIONThe ADS1240 and ADS1241 are precision, wide dynamic range,
delta-sigma, Analog-to-Digital (A/D) converters with 24-bit resolution
operating from 2.7V to 5.25V power supplies. The delta-sigma A/D
converter provides up to 24 bits of no missing code performance and
effective resolution of 21 bits.
The input channels are multiplexed. Internal buffering can be
selected to provide very high input impedance for direct connection
to transducers or low-level voltage signals. Burnout current sources
are provided that allow for detection of an open or shorted sensor.
An 8-bit Digital-to-Analog (D/A) converter provides an offset cor-
rection with a range of 50% of the Full-Scale Range (FSR).
The Programmable Gain Amplifier (PGA) provides selectable gains of
1 to 128, with an effective resolution of 19 bits at a gain of 128. The
A/D conversion is accomplished with a 2nd-order delta-sigma modu-
lator and programmable Finite-Impulse Response (FIR) filter that
provides a simultaneous 50Hz and 60Hz notch. The reference input
is differential and can be used for ratiometric conversion.
The serial interface is SPI compatible. Up to eight bits of data
I/O are also provided that can be used for input or output. The
ADS1240 and ADS1241 are designed for high-resolution measure-
ment applications in smart transmitters, industrial process control,
weigh scales, chromatography, and portable instrumentation.
APPLICATIONS INDUSTRIAL PROCESS CONTROL WEIGH SCALES LIQUID/GAS CHROMATOGRAPHY BLOOD ANALYSIS SMART TRANSMITTERS PORTABLE INSTRUMENTATIONAGNDAVDD VREF+VREF– XIN XOUT
DSYNCPDWN RESET DRDYBUFEN DGNDDVDD
SCLK
POL
DIN
DOUT
AIN0/D0
AIN1/D1
AIN2/D2
AIN3/D3
AINCOM
ADS1241
Only
ADS1240
ADS1241SBAS173F – JUNE 2001 – REVISED OCTOBER 2013
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.
