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Home > Products > Integrated Circuits (ICs) > Data Acquisition > Analog to Digital Converters (ADC)

Texas Instruments ADS114S06BIRHBT

Name: ADS114S06BIRHBT
Brand: Texas Instruments
SKU: ADS114S06BIRHBT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADS114S06BIRHBT

Manufacturer:: Texas Instruments

Category:: Analog to Digital Converters (ADC)

Package:: 32-VFQFN Exposed Pad

Datasheet:: ADS114S06BIRHBT.pdf

Description:: IC ADC 16BIT SIGMA-DELTA 32VQFN

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Product details

Overview

ADS114S06BIRHBT from Texas Instruments is a 16-bit, delta-sigma analog-to-digital converter with integrated programmable gain amplifier (PGA), 6-channel analog multiplexer, 2.5-V internal reference, 4.096-MHz oscillator, and four GPIOs. It delivers 2.5–4000 SPS data rates, 125 dB CMRR at 50/60 Hz, and supports resistive bridge and thermocouple sensing in field transmitters.

For engineers reviewing the ADS114S06BIRHBT datasheet, ADS114S06BIRHBT pinout, ADS114S06BIRHBT application, or ADS114S06BIRHBT equivalent, this page provides verified technical context, real-world use cases, validated alternatives, and supply-ready procurement details for industrial sensor signal chains requiring low-noise, low-power, and high-integration ADCs.

Technical Context

The ADS114S06BIRHBT implements a low-latency digital filter enabling simultaneous 50-Hz and 60-Hz rejection at ≤20 SPS, with configurable decimation and settling behavior. Its PGA supports gains of 1–128 in discrete steps (1, 2, 4, 8, 16, 32, 64, 128), and its input mux selects any combination of six analog inputs (AIN0–AIN5) plus AINCOM for single-ended or differential measurements.

It integrates dual matched IDACs (10–2000 µA), burn-out detection, VBIAS generation, temperature sensing (403 µV/°C coefficient), and reference monitoring circuitry. Power supplies are split: AVDD/AVSS (±2.5 V or 2.7–5.25 V unipolar), DVDD (2.7–3.6 V), and IOVDD (DVDD to 5.25 V), with independent ground domains.

Key Specifications

Parameter	Value and Actual Design Meaning
Resolution	16-bit delta-sigma with no missing codes - ensures full-scale monotonicity for precision sensor digitization.
Data Rate	2.5 to 4000 SPS - selectable in 14 discrete steps, enabling trade-off between noise performance and throughput.
PGA Gain	1 to 128 in 8 discrete settings - amplifies microvolt-level thermocouple or bridge outputs without external op-amps.
INL Error	±25 ppmFSR max (gain ≥16) - guarantees <0.004% full-scale linearity error in closed-loop control feedback paths.
CMRR	125 dB at 50/60 Hz - rejects common-mode noise from AC mains-coupled industrial environments.
Supply Current	250 µA max (PGA enabled, gain=128, conversion mode) - enables battery-powered field instruments with multi-year runtime.
Reference Drift	8 ppm/°C typ (2.5 V internal) - reduces calibration frequency in temperature-uncontrolled enclosures.
Operating Temp	–40°C to +125°C - qualified for under-hood automotive sensors and industrial process controllers.

Pinout & Package

VQFN-32 (RHB) package, 5.0 mm × 5.0 mm, wettable flank, thermal pad connected to AVSS. Pin 1 marked by top-side dot; pin count confirmed per TI SBAS852A Rev. Feb 2020.

Pin/Terminal	Circuit Role	Design Meaning
1 AINCOM	Analog common	Reference node for single-ended measurements; connects to sensor return or bridge center tap.
2–7 AIN5–AIN0	Analog inputs	Six fully configurable ADC input channels; support differential pairs (e.g., AIN0–AIN1) or single-ended against AINCOM.
9 CS	Digital input	Active-low SPI chip select; must be held low during command/data transfer sequences.
10 DIN	Digital input	SPI serial data input; accepts register writes and configuration commands (e.g., WREG, RREG).
11 SCLK	Digital input	SPI clock input; synchronous timing source for all serial transfers; compatible with 4.096 MHz internal oscillator.
12 DOUT/DRDY	Digital output	Combined serial data output and active-low data ready flag; toggles on new conversion completion.
13 DRDY	Digital output	Dedicated active-low data ready signal; used for interrupt-driven sampling in microcontroller systems.
14 DGND	Digital ground	Return path for DVDD and IOVDD; must be isolated from AVSS except at single-point system ground.
15 IOVDD	Digital I/O supply	Power rail for logic-level GPIOs and digital interface; may differ from DVDD to match host MCU voltage.
16 DVDD	Digital core supply	Core logic and SPI controller power; requires local 100-nF decoupling to DGND.
18 RESET	Digital input	Active-low hardware reset; initiates full device initialization including register defaults and reference startup.
23 REFOUT	Analog output	2.5-V reference output; requires 1–47 µF capacitor to REFCOM for stability and low-noise operation.
24 REFCOM	Analog output	Reference common; must be tied to AVSS to enable internal reference buffer operation.
26 AVDD	Analog supply	Positive analog rail; supports ±2.5 V bipolar or 2.7–5.25 V unipolar operation; requires 330-nF decoupling to AVSS.
27,28 AVSS	Analog supply	Negative analog rail; serves as analog ground reference for AVDD, PGA, and ADC core; connects to thermal pad in RHB.
29 REFN0	Analog input	Negative external reference input; used with REFP0 to apply user-supplied differential reference voltage.
30 REFP0	Analog input	Positive external reference input; enables precision ratio-metric measurements using stable external references.

Key Features

Feature	Design Value
Simultaneous 50/60-Hz rejection	Enabled at ≤20 SPS via low-latency digital filter - eliminates need for external notch filters in noisy plant-floor environments.
Dual matched IDACs	10–2000 µA programmable current sources with 0.2% mismatch - enables precise 2-/3-/4-wire RTD biasing without external DACs or current mirrors.
Internal 2.5-V reference	8 ppm/°C drift, 9 µVPP (0.1–10 Hz), ±0.01% accuracy - reduces BOM count and PCB area vs. discrete reference ICs.
Four GPIOs	Configurable as inputs/outputs with AVDD-referenced logic levels - supports sensor enable/disable, fault signaling, or status indication without extra GPIO expanders.
Burn-out detection	Three selectable current sources (0.2/1/10 µA) for open-wire sensor diagnostics - detects broken thermocouple or RTD leads before system failure.
VBIAS generation	Mid-rail (AVDD+AVSS)/2 output with 350 Ω impedance - provides bias voltage for thermocouple cold-junction compensation circuits.

Applications

Field Transmitter Sensing	PLC Analog Input Module
Use Scenario: Digitizing mV-level thermocouple outputs in hazardous-area temperature transmitters with intrinsic safety barriers. IC Role / Device Role / Timing Role: Primary ADC with integrated PGA, reference, and IDACs - performs ratiometric conversion, cold-junction compensation, and open-circuit detection. Use Value: Eliminates 5 external components (PGA, ref, IDAC, VBIAS, temp sensor), reducing footprint by >30% and improving long-term drift stability.	Use Scenario: High-density 16-channel analog input card for industrial PLCs measuring pressure, flow, and level sensors. IC Role / Device Role / Timing Role: Channel-multiplexed ADC per group of 6 inputs - enables scan-based acquisition with synchronized start pulses and DRDY interrupts. Use Value: Achieves 125 dB CMRR and 25 ppm INL across all channels, meeting IEC 61000-4-5 surge immunity requirements without additional filtering.
Temperature Controller	Industrial Oven Monitoring
Use Scenario: Closed-loop PID controller for semiconductor process furnaces requiring ±0.1°C accuracy over –40°C to +125°C. IC Role / Device Role / Timing Role: Precision ADC with self-calibration and temperature sensor - acquires RTD resistance and compensates for ambient drift in real time. Use Value: Internal temperature sensor (403 µV/°C) and 8 ppm/°C reference drift reduce calibration intervals from quarterly to annual.	Use Scenario: Multi-zone oven monitoring system using 3-wire Pt100 RTDs with lead-wire compensation. IC Role / Device Role / Timing Role: Dual-IDAC-driven RTD excitation with burn-out detection - measures resistance while verifying sensor continuity before each reading. Use Value: Matched 0.2% IDAC mismatch ensures <0.05% measurement error across 0–1000°C range, meeting Class A RTD tolerance.

Field Transmitter Sensing

PLC Analog Input Module

Use Scenario: Digitizing mV-level thermocouple outputs in hazardous-area temperature transmitters with intrinsic safety barriers.

IC Role / Device Role / Timing Role: Primary ADC with integrated PGA, reference, and IDACs - performs ratiometric conversion, cold-junction compensation, and open-circuit detection.

Use Value: Eliminates 5 external components (PGA, ref, IDAC, VBIAS, temp sensor), reducing footprint by >30% and improving long-term drift stability.

Use Scenario: High-density 16-channel analog input card for industrial PLCs measuring pressure, flow, and level sensors.

IC Role / Device Role / Timing Role: Channel-multiplexed ADC per group of 6 inputs - enables scan-based acquisition with synchronized start pulses and DRDY interrupts.

Use Value: Achieves 125 dB CMRR and 25 ppm INL across all channels, meeting IEC 61000-4-5 surge immunity requirements without additional filtering.

Temperature Controller

Industrial Oven Monitoring

Use Scenario: Closed-loop PID controller for semiconductor process furnaces requiring ±0.1°C accuracy over –40°C to +125°C.

IC Role / Device Role / Timing Role: Precision ADC with self-calibration and temperature sensor - acquires RTD resistance and compensates for ambient drift in real time.

Use Value: Internal temperature sensor (403 µV/°C) and 8 ppm/°C reference drift reduce calibration intervals from quarterly to annual.

Use Scenario: Multi-zone oven monitoring system using 3-wire Pt100 RTDs with lead-wire compensation.

IC Role / Device Role / Timing Role: Dual-IDAC-driven RTD excitation with burn-out detection - measures resistance while verifying sensor continuity before each reading.

Use Value: Matched 0.2% IDAC mismatch ensures <0.05% measurement error across 0–1000°C range, meeting Class A RTD tolerance.

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision delta-sigma ADC applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADS124S06IPBSR	24-bit resolution, 4-kSPS max, TQFP-32, same pinout but higher noise floor at low gains	Used where ultra-high resolution outweighs power budget; not drop-in due to register map differences	Select when 24-bit dynamic range is required and system firmware can accommodate extended command set.
AD7124-6BRUZ	16-bit, 4-channel, integrated PGA, 2.5-V ref, but only two IDACs and no VBIAS or burn-out detection	Preferred for space-constrained designs needing fewer analog inputs and simpler diagnostics	Choose when 6-channel mux and comprehensive sensor health monitoring are not required.

Compared with ADS124S06IPBSR and AD7124-6BRUZ, the ADS114S06BIRHBT uniquely balances 16-bit precision, 6-channel flexibility, full sensor excitation suite (dual IDACs + burn-out + VBIAS), and industrial-grade temperature range - making it optimal for cost-sensitive, feature-rich field transmitter designs.

Availability

ADS114S06BIRHBT is available at Aetrix Electronics and suitable for field transmitters, PLC analog input modules, and temperature controllers requiring stable component supply, long-lifecycle assurance, and traceable sourcing for industrial OEM programs.

Supply support for ADS114S06BIRHBT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision data acquisition and industrial signal chain solutions.

The ADS114S0xB family was designed specifically for high-accuracy, low-power industrial sensor interfaces - integrating PGA, reference, IDACs, and diagnostics into a single chip to replace multi-component front-ends in field instruments and control systems.

FAQ

What is the maximum analog input voltage range supported by the ADS114S06BIRHBT?

The ADS114S06BIRHBT supports analog input voltages from AVSS – 0.05 V to AVDD + 0.05 V when the PGA is bypassed. With PGA enabled, the absolute input range depends on gain setting and differential input voltage - for example, at gain = 128, it is AVSS + 0.15 + 15.5·|VINMAX| to AVDD – 0.15 – 15.5·|VINMAX|. Full details are specified in Section 7.3 of the SBAS852A datasheet.

Does the ADS114S06BIRHBT support external reference inputs, and how are they configured?

Yes, the ADS114S06BIRHBT supports two differential external reference inputs: REFP0/REFN0 (pins 30/29) and REFP1/REFN1 (pins 32/31). However, REFP1/REFN1 are shared with AIN6/AIN7 and are not available on the ADS114S06B variant. Only REFP0/REFN0 is functional for external reference use in the ADS114S06BIRHBT, and the reference mux must be configured via register 0x05 to select it.

How does the burn-out detection feature work on the ADS114S06BIRHBT?

The ADS114S06BIRHBT includes dedicated burn-out current sources (0.2 µA, 1 µA, or 10 µA) that can be applied to analog inputs to detect open-circuit conditions in RTDs or thermocouples. When enabled, the current flows through the sensor; absence of expected voltage indicates a break. Detection is performed in conjunction with the ADC's normal conversion sequence and reported via status bits.

Can the ADS114S06BIRHBT operate with separate analog and digital supply voltages?

Yes, the ADS114S06BIRHBT supports independent supply domains: AVDD/AVSS for analog circuitry (2.7–5.25 V unipolar or ±2.5 V bipolar), DVDD for digital core (2.7–3.6 V), and IOVDD for digital I/O (DVDD to 5.25 V). This allows interfacing with 1.8-V, 3.3-V, or 5-V host MCUs while maintaining analog integrity - provided proper grounding and decoupling per Section 11 of SBAS852A.

What is the function of the VBIAS pin on the ADS114S06BIRHBT, and how is it used?

The VBIAS pin (pin 22 on ADS114S08B, not present on ADS114S06B) is not available on the ADS114S06BIRHBT. The ADS114S06B variant does not include VBIAS functionality - this feature is exclusive to the ADS114S08B. For thermocouple biasing in ADS114S06BIRHBT designs, external circuitry or alternative bias methods must be implemented.

ADS114S06BIRHBT Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

Package/Case:: 32-VFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Number of Bits:: 16

Sampling Rate (Per Second):: 4k

Number of Inputs:: 4, 6

Input Type:: Differential, Pseudo-Differential, Single Ended

Data Interface:: SPI

Configuration:: MUX-PGA-ADC

Ratio - S/H:ADC:: -

Number of A/D Converters:: 1

Architecture:: Sigma-Delta

Reference Type:: External, Internal

Voltage - Supply, Analog:: ±2.5V, 2.7V ~ 5.25V

Voltage - Supply, Digital:: 2.7V ~ 3.6V

Features:: PGA, Temperature Sensor

Operating Temperature:: -40°C ~ 125°C (TA)

Supplier Device Package:: 32-VQFN (5x5)

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

ADS114S06BIRHBT FAQ

1.How can I place an order for ADS114S06BIRHBT through Aetrix?

Please submit a Request for Quotation (RFQ) for ADS114S06BIRHBT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for ADS114S06BIRHBT reliable?

The price and inventory of ADS114S06BIRHBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS114S06BIRHBT is usually 5 days.

3.What payment methods are accepted for ADS114S06BIRHBT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS114S06BIRHBT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADS114S06BIRHBT?

ADS114S06BIRHBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADS114S06BIRHBT order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for ADS114S06BIRHBT?

For technical support, including ADS114S06BIRHBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS114S06BIRHBT requirements.

6.How does Aetrix verify that ADS114S06BIRHBT is sourced from the original manufacturer or authorized distributors?

All ADS114S06BIRHBT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADS114S06BIRHBT meets industry standards.

7.What is the process for return or replacement of ADS114S06BIRHBT?

All ADS114S06BIRHBT units undergo pre-shipment inspection (PSI). If there is an issue with ADS114S06BIRHBT, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The ADS114S06BIRHBT part is unused and in its original packaging.

Return procedure for ADS114S06BIRHBT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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