Texas Instruments ADS114S06BIPBS

Overview

ADS114S06BIPBS 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 280 µA ultra-low power consumption, 2.5 SPS to 4 kSPS programmable data rates, and simultaneous 50/60-Hz rejection at ≤20 SPS-optimized for precision sensor signal acquisition in field transmitters and PLC analog input modules.

For engineers reviewing the ADS114S06BIPBS datasheet, ADS114S06BIPBS pinout, ADS114S06BIPBS application, or ADS114S06BIPBS equivalent, key selection criteria include its 6-input MUX configuration (vs. 12-input ADS114S08B), TQFP-32 package, unipolar/bipolar analog supply support (2.7 V to 5.25 V / ±2.5 V), dual 10–2000 µA excitation current sources, and integrated temperature sensor for system-level diagnostics.

Technical Context

The ADS114S06BIPBS implements a low-latency digital filter with configurable decimation and notch rejection at 50 Hz and 60 Hz, enabling robust operation in noisy industrial environments. Its PGA supports gains of 1, 2, 4, 8, 16, 32, 64, and 128 with input offset voltage as low as 2 µV (gain ≥16) and 20 µV (gain = 1) after calibration.

It integrates dual matched IDACs (10–2000 µA, ±1% accuracy at 25°C), internal 2.5-V reference (8 ppm/°C typical drift), and reference buffers-allowing flexible external reference monitoring via REFP0/REFN0 and REFP1/REFN1 inputs. The device operates across –40°C to +125°C with AVDD/AVSS analog supply range up to ±2.5 V or 2.7–5.25 V unipolar.

Key Specifications

Pinout & Package

The ADS114S06BIPBS is housed in a 32-pin TQFP (PBS package), 5.0 mm × 5.0 mm body size, with exposed thermal pad connected to AVSS. Pin functions are defined per TI SBAS852A Rev. February 2020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADS114S08BIPBS, the ADS114S06BIPBS reduces channel count but retains identical power, noise, and calibration performance-making it optimal for cost- and space-constrained 6-input designs. Versus ADS124S06IPBS, it trades resolution for lower power, integrated clock, and enhanced diagnostics-better suited for industrial field applications.

Availability

ADS114S06BIPBS is available at Aetrix Electronics and suitable for field transmitters, PLC analog input modules, and temperature controllers requiring stable component supply, long-term industrial lifecycle support, and guaranteed traceable sourcing.

Supply support for ADS114S06BIPBS 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-accuracy, low-power sensor measurement in industrial automation-integrating PGA, reference, IDACs, and filtering to replace multi-component front-ends in field transmitters and control systems.

FAQ

What is the maximum analog input voltage range supported by the ADS114S06BIPBS?

The ADS114S06BIPBS supports unipolar analog supplies from 2.7 V to 5.25 V (AVDD to AVSS) or bipolar supplies of ±2.5 V. With PGA bypassed, absolute input voltage ranges from AVSS – 0.05 V to AVDD + 0.05 V; with PGA enabled, the valid range depends on gain and differential input-e.g., at gain = 128, it is AVSS + 0.15 + 15.5·|VINMAX| to AVDD – 0.15 – 15.5·|VINMAX|. The ADS114S06BIPBS datasheet specifies these limits under Recommended Operating Conditions.

Does the ADS114S06BIPBS support external reference inputs, and how are they configured?

Yes, the ADS114S06BIPBS supports two differential external reference inputs: REFP0/REFN0 (pins 30/29) and REFP1/REFN1 (pins 32/31). However, REFP1/REFN1 are not available on the ADS114S06BIPBS-only REFP0/REFN0 is functional. These inputs accept 0.5 V to AVDD–AVSS differential voltage and may be used with or without internal reference buffers enabled, as controlled by the REFCON register. The ADS114S06BIPBS reference monitor also detects low-voltage conditions on these inputs.

How does the burn-out detection feature work on the ADS114S06BIPBS?

The ADS114S06BIPBS includes configurable burn-out current sources (0.2 µA, 1 µA, or 10 µA) that can be applied to selected analog inputs to detect open-circuit conditions in RTDs or thermistors. When enabled, the current source forces a known current through the sensor; if no resulting voltage is measured (indicating infinite resistance), the device flags a burn-out condition. This occurs prior to conversion and is configurable per channel via the MUX register. The ADS114S06BIPBS implements this without requiring external components.

Can the ADS114S06BIPBS operate with an external clock, and what are the timing requirements?

Yes, the ADS114S06BIPBS accepts an external clock on the CLK pin (pin 17) with frequency range 2 MHz to 4.5 MHz and duty cycle 40%–60%. When using external clock, the internal 4.096-MHz oscillator is disabled. SPI timing parameters-including t_CSSC, t_SCCS, and t_CLK-scale linearly with f_CLK; for example, minimum SCLK period is 100 ns at 4.096 MHz but increases proportionally at lower frequencies. The ADS114S06BIPBS datasheet defines all timing requirements relative to t_CLK = 1/f_CLK.

What GPIO functionality is available on the ADS114S06BIPBS, and how are they controlled?

The ADS114S06BIPBS provides four general-purpose I/Os (GPIO0–GPIO3, pins 22–19) with AVDD-referenced logic levels. Each GPIO is individually configurable as input or output via the GPIODAT and GPIOCON registers. Output drive strength is fixed (1 mA sink/source), and inputs support standard TTL thresholds (V_IL ≤ 0.3·AVDD, V_IH ≥ 0.7·AVDD). These pins may also serve as additional analog inputs on the ADS114S08B-but not on the ADS114S06BIPBS, where they are GPIO-only. All GPIO states persist across standby mode.