ADS1148-Q1 Series

Automotive 16-bit 2-kSPS ADC with PGA, reference and IDAC for precision sensor measurement

Catalog

Automotive 16-bit 2-kSPS ADC with PGA, reference and IDAC for precision sensor measurement

Part	Number of A/D Converters	Input Range	Supplied Contents	Data Interface	Number of Bits	Utilized IC / Part	Sampling Rate (Per Second) [Min]	Sampling Rate (Per Second) [Max]	Power (Typ) @ Conditions	Mounting Type	Number of Inputs	Features	Input Type	Reference Type	Sampling Rate (Per Second)	Operating Temperature [Min]	Operating Temperature [Max]	Package / Case	Package / Case	Package / Case [y]	Configuration	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Supplier Device Package	Architecture	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]	Qualification	Grade
Texas Instruments ADS1148EVM-PDK	1	±VREF/gain	Board(s)	SPI	16	ADS1148	5 Per Second	2k	2.3 mW
Texas Instruments ADS1148EVM	1	±VREF/gain	Board(s)	SPI	16	ADS1148	5 Per Second	2k	2.3 mW
Texas Instruments ADS1148IPW	1			SPI	16					Surface Mount	4 7	PGA	Differential Single Ended	External Internal	2k	-40 °C	105 ░C	28-TSSOP	0.173 in	4.4 mm	MUX-PGA-ADC	5.25 V	2.7 V	28-TSSOP	Sigma-Delta	2.7 V	5.25 V
Texas Instruments ADS1148IRHBR	1			SPI	16					Surface Mount	4 7	PGA	Differential Single Ended	External Internal	2k	-40 °C	105 ░C	32-VFQFN Exposed Pad			MUX-PGA-ADC	5.25 V	2.7 V	32-VQFN (5x5)	Sigma-Delta	2.7 V	5.25 V
Texas Instruments ADS1148IPWR	1			SPI	16					Surface Mount	4 7	PGA	Differential Single Ended	External Internal	2k	-40 °C	105 ░C	28-TSSOP	0.173 in	4.4 mm	MUX-PGA-ADC	5.25 V	2.7 V	28-TSSOP	Sigma-Delta	2.7 V	5.25 V
Texas Instruments ADS1148QPWRQ1	1			SPI	16					Surface Mount	8	PGA Temperature Sensor	Differential Single Ended	External Internal	2k	-40 °C	125 °C	28-TSSOP	0.173 in	4.4 mm	MUX-PGA-ADC	5.25 V	2.7 V	28-TSSOP	Sigma-Delta	2.7 V	5.25 V	AEC-Q100	Automotive
Texas Instruments ADS1148IRHBT	1			SPI	16					Surface Mount	4 7	PGA	Differential Single Ended	External Internal	2k	-40 °C	105 ░C	32-VFQFN Exposed Pad			MUX-PGA-ADC	5.25 V	2.7 V	32-VQFN (5x5)	Sigma-Delta	2.7 V	5.25 V

Catalog

Automotive 16-bit 2-kSPS ADC with PGA, reference and IDAC for precision sensor measurement

Key Features

• Qualified for Automotive ApplicationsAEC-Q100 Qualified with the Following Results:Temperature Grade 1: –40°C to +125°CHBM ESD Classification 2CDM ESD Classification C5Programmable Gain: 1 V/V to 128 V/VProgrammable Data Rates: 5 SPS to 2 kSPSSingle-Cycle Settling for All Data RatesAnalog Multiplexer With 8 Independently Selectable InputsDual-Matched Programmable Excitation Current Sources: 50 µA to 1.5 mAInternal 2.048-V Voltage ReferenceInternal 4.096-MHz OscillatorInternal Temperature SensorOpen Sensor DetectionPower-Supply and External Reference MonitoringSelf and System Calibration8 General-Purpose I/OsSPI-Compatible Serial InterfaceAnalog Supply: Unipolar (2.7 V to 5.25 V) or Bipolar (±2.5 V)Digital Supply: 2.7 V to 5.25 VQualified for Automotive ApplicationsAEC-Q100 Qualified with the Following Results:Temperature Grade 1: –40°C to +125°CHBM ESD Classification 2CDM ESD Classification C5Programmable Gain: 1 V/V to 128 V/VProgrammable Data Rates: 5 SPS to 2 kSPSSingle-Cycle Settling for All Data RatesAnalog Multiplexer With 8 Independently Selectable InputsDual-Matched Programmable Excitation Current Sources: 50 µA to 1.5 mAInternal 2.048-V Voltage ReferenceInternal 4.096-MHz OscillatorInternal Temperature SensorOpen Sensor DetectionPower-Supply and External Reference MonitoringSelf and System Calibration8 General-Purpose I/OsSPI-Compatible Serial InterfaceAnalog Supply: Unipolar (2.7 V to 5.25 V) or Bipolar (±2.5 V)Digital Supply: 2.7 V to 5.25 V

Description

The ADS1148-Q1 is a highly-integrated, precision, 16-bit analog-to-digital converter (ADC) that includes many integrated features to reduce system cost and component count for sensor measurement applications. The device features 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 ADS1148-Q1 integrates a low-drift voltage reference, and two matched programmable excitation current sources (IDACs). The device offers a fully flexible multiplexer that allows both positive and negative inputs to be selected independently. In addition, the multiplexer integrates sensor burn-out detection, voltage bias for thermocouples, system monitoring, and eight general-purpose digital I/Os (GPIOs). 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. 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 the 50-Hz and 60-Hz interference are rejected by the filter. The ADS1148-Q1 is a highly-integrated, precision, 16-bit analog-to-digital converter (ADC) that includes many integrated features to reduce system cost and component count for sensor measurement applications. The device features 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 ADS1148-Q1 integrates a low-drift voltage reference, and two matched programmable excitation current sources (IDACs). The device offers a fully flexible multiplexer that allows both positive and negative inputs to be selected independently. In addition, the multiplexer integrates sensor burn-out detection, voltage bias for thermocouples, system monitoring, and eight general-purpose digital I/Os (GPIOs). 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. 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 the 50-Hz and 60-Hz interference are rejected by the filter.