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Details for ADS1248IPWR by Texas Instruments
Semiconductors - ICs > Data & Signal Conversion > Analog-to-Digital Converters - ADC
ADC 24BIT 2KSPS SPI TSSOP-28
ADS1248IPWR image

ADS1248IPWR by Texas Instruments

ADC 24BIT 2KSPS SPI TSSOP-28
Features
4 or 8 General-Purpose I/Os (ADS1247, ADS1248)
Analog Multiplexer With 8 (ADS1248) and 4 (ADS1247) Independently Selectable Inputs
Analog Supply: Unipolar (2.7 V to 5.25 V) and Bipolar (u00b12.5 V) Operation
Digital Supply: 2.7 V to 5.25 V
Dual-Matched Programmable Excitation Current Sources
Internal Temperature Sensor
Low-Drift Internal 2.048-V Reference: 10 ppm/u00b0C (Maximum)
Low-Noise PGA: 48 nVRMS at PGA = 128
Power Supply and VREF Monitoring (ADS1247, ADS1248)
Programmable Data Rates Up to 2 kSPS
SPIu2122-Compatible Serial Interface
Self and System Calibration
Sensor Burn-Out Detection
Simultaneous 50-Hz and 60-Hz Rejection at 20 SPS
Single-Cycle Settling for All Data Rates
Part Information
ADS1248IPWR image
RoHS Compliant
Description
The ADS1246, ADS1247, and ADS1248 devices are precision, 24-bit analog-to-digital converters (ADCs) that include many integrated features to reduce system cost and component count for sensor measurement applications. The devices feature a low-noise, programmable gain amplifier (PGA), a precision delta-sigma (ΔΣ) ADC with a single-cycle settling digital filter, and an internal oscillator. The ADS1247 and ADS1248 devices also provide a builtin, low-drift voltage reference, and two matched programmable excitation current sources (IDACs). An input multiplexer supports four differential inputs for the ADS1248, two for the ADS1247, and one for the ADS1246. In addition, the multiplexer integrates sensor burn-out detection, voltage bias for thermocouples, system monitoring, and general purpose digital I/Os (ADS1247 and ADS1248). The PGA provides selectable gains up to 128 V/V. These features provide a complete front-end solution for temperature sensor measurement applications including thermocouples, thermistors, and resistance temperature detectors (RTDs) and other small signal measurements including resistive bridge sensors. The digital filter settles in a single cycle to support fast channel cycling when using the input multiplexer and provides data rates up to 2 kSPS. For data rates of 20 SPS or less, both 50-Hz and 60-Hz interference are rejected by the filter.
Specifications
Resolution (Bits):
24bit
Sampling Rate:
2kSPS
Input Channel Type:
Differential Single Ended
Data Interface:
SPI
Supply Voltage Type:
Single
Supply Voltage Min:
2.7V
Supply Voltage Max:
5.25V
ADC / DAC Case Style:
TSSOP
No. of Pins:
28Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
105°C
Product Range:
Octal 24-Bit Sigma-Delta ADCs
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 2 - 1 year
SVHC:
No SVHC (27-Jun-2018)
Alternate Descriptions
ADC, 24BIT, 2KSPS, SPI, TSSOP-28; Resolution (Bits):24bit; Sampling Rate:2kSPS; Input Channel Type:Differential, Single Ended; Data Interface:SPI; Supply Voltage Type:Single; Supply Voltage Min:2.7V; Supply Voltage Max:5.25V; ADC / RoHS Compliant: Yes Newark Electronics
ADC Single Delta-Sigma 2ksps 24-bit Serial 28-Pin TSSOP T/R Avnet America
ADC Single Delta-Sigma 2ksps 24-bit Serial 28-Pin TSSOP T/R Avnet Europe