Texas Instruments ADS114S06BIRHBR

Overview

ADS114S06BIRHBR 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, dual excitation current sources (10–2000 µA), and four GPIOs-designed for precision sensor signal acquisition in field transmitters and PLC analog input modules.

For engineers reviewing the ADS114S06BIRHBR datasheet, ADS114S06BIRHBR pinout, ADS114S06BIRHBR application, or ADS114S06BIRHBR equivalent, key selection criteria include its 2.5–4000 SPS programmable data rate, ±2.5-V bipolar analog supply support, simultaneous 50/60-Hz rejection at ≤20 SPS, low 280-µA operating current, and VQFN-32 package compatibility with industrial temperature range (–40°C to +125°C).

Technical Context

The ADS114S06BIRHBR implements a low-latency digital filter optimized for industrial noise rejection, with configurable decimation and built-in 50/60-Hz notch capability at low data rates. Its PGA supports gains of 1–128 in discrete steps (1, 2, 4, 8, 16, 32, 64, 128) and achieves <25 ppmFSR INL and <2 µV offset drift over temperature.

It integrates dual matched IDACs with 0.2% current mismatch and 10 ppm/°C matching drift, plus reference detection circuitry for external reference monitoring. The device supports both internal (2.5 V, 8 ppm/°C drift) and external reference configurations, with buffered REFP0/REFN0 inputs and optional REFP1/REFN1-though the latter are not functional on ADS114S06B per datasheet note.

Key Specifications

Pinout & Package

The ADS114S06BIRHBR is housed in a 5.0 mm × 5.0 mm, 32-pin VQFN (RHB) package with exposed thermal pad connected to AVSS. Pin functions are defined per TI SBAS852A Rev. February 2020, with AIN0–AIN5, AINCOM, REFP0/REFN0, GPIO0–GPIO3, and SPI interface signals fully supported; AIN6–AIN11, REFP1/REFN1 are not available on this variant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADS124S06IPBSR and AD7124-6BCPZ-RL7, the ADS114S06BIRHBR delivers optimal balance of integration, power efficiency (280 µA), and industrial-grade features-including VBIAS, simultaneous 50/60-Hz rejection, and GPIOs-making it ideal for cost-sensitive, space-constrained field transmitter designs where 16-bit precision suffices.

Availability

ADS114S06BIRHBR is available at Aetrix Electronics and suitable for field transmitters, PLC analog input modules, and industrial temperature controllers requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial OEM programs.

Supply support for ADS114S06BIRHBR 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 converters and industrial signal chain solutions.

The ADS114S0xB family was designed specifically for high-integration, low-power industrial sensing-targeting applications where board space, power budget, and system-level calibration complexity must be minimized without sacrificing 16-bit accuracy.

FAQ

What is the maximum data rate supported by the ADS114S06BIRHBR?

The ADS114S06BIRHBR supports a maximum data rate of 4 kSPS (4000 samples per second). This rate is achievable with the internal 4.096-MHz oscillator and minimal digital filtering. At higher data rates, the device trades off noise performance for speed-e.g., 4 kSPS yields ~12.5-bit effective resolution, while 2.5 SPS delivers full 16-bit noise-free resolution. The ADS114S06BIRHBR offers 14 discrete data rate settings between these extremes.

Does the ADS114S06BIRHBR support external reference inputs?

Yes, the ADS114S06BIRHBR supports external reference inputs via dedicated REFP0 and REFN0 pins, enabling use of higher-accuracy or lower-drift external references. The device also includes reference monitoring circuitry that triggers a flag if the external reference voltage drops below 0.3 V. Note that REFP1/REFN1 pins are not functional on the ADS114S06BIRHBR variant-only on the ADS114S08B.

How many analog input channels does the ADS114S06BIRHBR provide?

The ADS114S06BIRHBR provides six analog input channels (AIN0 through AIN5), plus AINCOM for single-ended reference. These can be configured in any differential or single-ended combination via the integrated analog multiplexer. Unlike the ADS114S08B, the ADS114S06BIRHBR does not support AIN6–AIN11 or REFP1/REFN1-confirming its 6-channel designation per TI's device comparison table.

What are the supply voltage requirements for the ADS114S06BIRHBR?

The ADS114S06BIRHBR requires separate analog and digital supplies: AVDD to AVSS must be 2.7–5.25 V (unipolar) or ±2.5 V (bipolar); DVDD to DGND is 2.7–3.6 V; and IOVDD to DGND ranges from DVDD to 5.25 V. AVSS may be grounded or negative-critical for bipolar operation. All supplies require local decoupling: 330-nF on AVDD, 100-nF on DVDD, and 100-nF on IOVDD.

Can the ADS114S06BIRHBR perform self-calibration?

Yes, the ADS114S06BIRHBR supports both self-offset calibration and system-gain calibration via SPI commands. Self-calibration corrects internal offset errors without external stimulus and completes in under 10 ms. System calibration uses an external known reference to correct gain and offset across the entire signal chain-including external sensors and conditioning circuitry-and is essential for high-accuracy factory calibration workflows.