ADS1258-EP Series

Enhanced product 16-channel 24-bit analog-to-digital converter (ADC)

Catalog

Enhanced product 16-channel 24-bit analog-to-digital converter (ADC)

Part	Reference Type	Package / Case	Number of Bits	Operating Temperature [Max]	Operating Temperature [Min]	Architecture	Configuration	Data Interface	Voltage - Supply, Analog	Mounting Type	Number of Inputs	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Number of A/D Converters	Input Type	Supplier Device Package	Operating Temperature [Min]	Operating Temperature [Max]	Supplied Contents	Power (Typ) @ Conditions	Utilized IC / Part	Input Range [Max]	Input Range [Min]
Texas Instruments ADS1258MPHPTEP	External	48-PowerTQFP	24	125 °C	-55 °C	Sigma-Delta	MUX-ADC	SPI	5 V	Surface Mount	16 8	5.25 V	2.7 V	1	Differential Single Ended	48-HTQFP (7x7)
Texas Instruments ADS1258IPHPREP	External	48-PowerTQFP	24			Sigma-Delta	MUX-ADC	SPI	5 V	Surface Mount	16 8	5.25 V	2.7 V	1	Differential Single Ended	48-HTQFP (7x7)	-40 °C	105 ░C
Texas Instruments ADS1258V2EVM-PDK			24					SPI						1					Board(s)	42 mW	ADS1258	5 V	0 V
Texas Instruments ADS1258EVM			24					SPI						1					Board(s)	42 mW	ADS1258	5 V	0 V
Texas Instruments ADS1258IRTCTG4	External	48-VFQFN Exposed Pad	24			Sigma-Delta	MUX-ADC	SPI	5 V	Surface Mount	16 8	5.25 V	2.7 V	1	Differential Single Ended	48-VQFN (7x7)	-40 °C	105 ░C
Texas Instruments ADS1258MRTCTEP	External	48-VFQFN Exposed Pad	24	125 °C	-55 °C	Sigma-Delta	MUX-ADC	SPI	5 V	Surface Mount	16 8	5.25 V	2.7 V	1	Differential Single Ended	48-VQFN (7x7)

Catalog

Enhanced product 16-channel 24-bit analog-to-digital converter (ADC)

Key Features

• 24 Bits, No Missing CodesFixed-Channel or Automatic Channel ScanFixed-Channel Data Rate: 125 kSPSAuto-Scan Data Rate: 23.7 kSPS/ChannelSingle-Conversion Settled Data16 Single-Ended or 8 Differential InputsUnipolar (5 V) or Bipolar (±2.5 V) OperationLow Noise: 2.8 µVRMSat 1.8 kSPS0.0003% Integral NonlinearityDC Stability (typical):0.02 µV/°C Offset Drift, 0.4 ppm/°C Gain DriftOpen-Sensor DetectionConversion Control PinMultiplexer Output for External Signal ConditioningOn-Chip Temperature, Reference, Offset, Gain, andSupply Voltage Readback42-mW Power DissipationStandby, Sleep, and Power-Down Modes8 General-Purpose Inputs/Outputs (GPIO)32.768-kHz Crystal Oscillator or External ClockAPPLICATIONSMedical, Avionics, and Process ControlMachine and System MonitoringFast Scan Multi-Channel InstrumentationIndustrial SystemsTest and Measurement SystemsAPPLICATIONSControlled BaselineOne Assembly/Test SiteOne Fabrication SiteAvailable in Military (–55°C/125°C) andIndustrial (–40°C/105°C) Temperature Ranges(1)Extended Product Life CycleExtended Product-Change NotificationProduct Traceability(1)Custom temperature ranges availableAll other trademarks are the property of their respective owners24 Bits, No Missing CodesFixed-Channel or Automatic Channel ScanFixed-Channel Data Rate: 125 kSPSAuto-Scan Data Rate: 23.7 kSPS/ChannelSingle-Conversion Settled Data16 Single-Ended or 8 Differential InputsUnipolar (5 V) or Bipolar (±2.5 V) OperationLow Noise: 2.8 µVRMSat 1.8 kSPS0.0003% Integral NonlinearityDC Stability (typical):0.02 µV/°C Offset Drift, 0.4 ppm/°C Gain DriftOpen-Sensor DetectionConversion Control PinMultiplexer Output for External Signal ConditioningOn-Chip Temperature, Reference, Offset, Gain, andSupply Voltage Readback42-mW Power DissipationStandby, Sleep, and Power-Down Modes8 General-Purpose Inputs/Outputs (GPIO)32.768-kHz Crystal Oscillator or External ClockAPPLICATIONSMedical, Avionics, and Process ControlMachine and System MonitoringFast Scan Multi-Channel InstrumentationIndustrial SystemsTest and Measurement SystemsAPPLICATIONSControlled BaselineOne Assembly/Test SiteOne Fabrication SiteAvailable in Military (–55°C/125°C) andIndustrial (–40°C/105°C) Temperature Ranges(1)Extended Product Life CycleExtended Product-Change NotificationProduct Traceability(1)Custom temperature ranges availableAll other trademarks are the property of their respective owners

Description

The ADS1258 is a 16-channel (multiplexed), low-noise, 24-bit, delta-sigma () analog-to-digital converter (ADC) that provides single-cycle settled data at channel scan rates from 1.8k to 23.7k samples per second (SPS) per channel. A flexible input multiplexer accepts combinations of eight differential or 16 single-ended inputs with a full-scale differential range of 5 V or true bipolar range of ±2.5 V when operating with a 5-V reference. The fourth-order delta-sigma modulator is followed by a fifth-order sinc digital filter optimized for low-noise performance. The differential output of the multiplexer is accessible to allow signal conditioning prior to the input of the ADC. Internal system monitor registers provide supply voltage, temperature, reference voltage, gain, and offset data. An onboard PLL generates the system clock from a 32.768-kHz crystal, or can be overridden by an external clock source. A buffered system clock output (15.7 MHz) is provided to drive a microcontroller or additional converters. Serial digital communication is handled via an SPI-compatible interface. A simple command word structure controls channel configuration, data rates, digital I/O, monitor functions, etc. Programmable sensor bias current sources can be used to bias sensors or verify sensor integrity. The ADS1258 operates from a unipolar 5-V or bipolar ±2.5-V analog supply and a digital supply compatible with interfaces ranging from 2.7 V to 5.25 V. The ADS1258 is available in QFN-48 and QFP-48 packages. The ADS1258 is a 16-channel (multiplexed), low-noise, 24-bit, delta-sigma () analog-to-digital converter (ADC) that provides single-cycle settled data at channel scan rates from 1.8k to 23.7k samples per second (SPS) per channel. A flexible input multiplexer accepts combinations of eight differential or 16 single-ended inputs with a full-scale differential range of 5 V or true bipolar range of ±2.5 V when operating with a 5-V reference. The fourth-order delta-sigma modulator is followed by a fifth-order sinc digital filter optimized for low-noise performance. The differential output of the multiplexer is accessible to allow signal conditioning prior to the input of the ADC. Internal system monitor registers provide supply voltage, temperature, reference voltage, gain, and offset data. An onboard PLL generates the system clock from a 32.768-kHz crystal, or can be overridden by an external clock source. A buffered system clock output (15.7 MHz) is provided to drive a microcontroller or additional converters. Serial digital communication is handled via an SPI-compatible interface. A simple command word structure controls channel configuration, data rates, digital I/O, monitor functions, etc. Programmable sensor bias current sources can be used to bias sensors or verify sensor integrity. The ADS1258 operates from a unipolar 5-V or bipolar ±2.5-V analog supply and a digital supply compatible with interfaces ranging from 2.7 V to 5.25 V. The ADS1258 is available in QFN-48 and QFP-48 packages.