The official website - Shenzhen Mingjiada Electronic Co., LTD
The ADS1248IPWR is a highly integrated 24-bit analog-to-digital converter (ADC) launched by (TI), mainly used for precision sensor measurements.
The ADS1248IPWR has the following main features and specifications:
24 bits, no code loss
Programmable data rate up to 2 kSPS
Single-cycle establishment of all data rates
Simultaneous suppression of 50Hz and 60Hz is achieved at 20SPS
It has 8 analog multiplexers
Low-noise PGA: 48 nVRMS when PGA = 128
Double-matching programmable excitation current source
Low drift internal 2.048V reference:
10 ppm/°C (maximum value)
Sensor burnout detection
Eight general-purpose I/ OS
Internal temperature sensor
Power supply and VREF monitoring
Self-calibration and system calibration
SPI is compatible with serial interfaces
Analog power supply: Unipolar (2.7V to 5.25V) and bipolar (± 2.5V) operation
Digital power supply: 2.7V to 5.25V
Operating temperature: -40 °C to 125°C
ADS1248 Instructions
The ADS1248IPWR is a highly integrated precision 24-bit analog-to-digital converter (ADC). The ADS1248IPWR device features an on-board, low-noise, programmable gain amplifier (PGA), a precise Δ-Σ ADC with a single-cycle establishment digital filter, and an internal oscillator. The ADS1248IPWR also offers an integrated extremely low drift voltage reference with a 10mA output capacity, as well as two matching programmable current digital-to-analog converters (Dacs). This device offers a complete front-end solution for temperature sensor applications, including thermal couplers, thermistors and resistance temperature detectors (RTD).
The input multiplexer supports four differential inputs for the ADS1248IPWR. In addition, this multiplexer also features sensor burnout detection, thermocouple voltage bias, system monitoring and universal digital I/O. The on-board low-noise PGA offers selectable gains ranging from 1 to 128. The ΔΣ modulator and tunable digital filter are established in just one cycle. When using an input multiplexer, a fast channel loop can be achieved, and data rates up to 2 kSPS are supported. For data rates of 20 SPS or lower, the filter suppresses interference at 50 Hz and 60 Hz.
Application field
The ADS1248IPWR is suitable for various applications that require high-precision measurement, including
Temperature sensor measurement
RTD, thermocouples and thermistors
Pressure measurement
Flowmeter
Factory automation and process control
Basic parameters
Product: ADS1248IPWR
Number of digits: 24
Sampling rate (per second) : 2k
Input numbers: 4,7
Input type: Differential, single-ended
Data interface: SPI
Configuration: MUX-PGA-ADC
Ratio -S /H:ADC: -
A/D converter number: 1
Architecture: Trigonometric integral
Reference types: external, internal
Voltage - Power supply, analog: 2.7V to 5.25V
Voltage - Power supply, figure: 2.7V to 5.25V
Features: PGA, temperature sensor
Operating temperature: -40°C to 105°C
Packaging/Housing: 28-TSSOP
Installation type: Surface mount type
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