Firmenblog über Mingjiada Supplies TI ADS1110: 16-Bit, 240 SPS, Single-Channel Δ-Σ ADC Selection Guide and In-Stock Purchasing

Mingjiada Electronics offers in-stock TI ADS1110 series 16-bit, 240 SPS single-channel Δ-Σ ADCs, featuring a built-in PGA, oscillator, and 2.048V voltage reference, in an SOT-23-6 package with an I²C interface. This article provides a detailed overview of the ADS1110’s technical specifications, application scenarios, alternative options, and key procurement considerations, and supports sample requests and bulk in-stock delivery.

In analog signal acquisition chains, when designs face the triple constraints of “extremely limited space, power-sensitive requirements, and no compromise on accuracy,” component selection often presents a dilemma: discrete solutions take up too much board space, while high-precision, multi-channel ADCs tend to consume too much power. TI’s ADS1110 is a device specifically designed for this niche application—a 16-bit Δ-Σ ADC that integrates a PGA, oscillator, voltage reference, and I²C interface all within a SOT-23-6 package. Mingjiada Electronics maintains a long-term inventory of the ADS1110 series (including the common part number ADS1110A1IDBVR). We offer genuine, factory-direct products with immediate delivery, providing a stable supply of signal chain chips for R&D prototyping and mass production.

What Kind of ADC Is the ADS1110?

The core positioning of the ADS1110 can be summarized in one sentence: a complete single-channel precision data acquisition system in just 6 pins. It integrates a programmable gain amplifier (PGA, with a gain range of 1 to 8), an oscillator, a 2.048V reference (accuracy ±0.05%, temperature drift 5 ppm/°C), and an I²C-compatible serial interface. It operates within a supply voltage range of 2.7V to 5.5V, with a typical operating current of 240 µA. It achieves zero lost counts at 16-bit resolution, with integral nonlinearity (INL) of no more than 0.01% of full scale, and supports continuous self-calibration. These specifications are sufficient to cover most DC and low-frequency signal acquisition needs in portable devices and industrial transmitter applications.

In terms of sampling rates, the ADS1110 offers four programmable rates: 15 SPS, 30 SPS, 60 SPS, and 240 SPS. Lower rates provide better noise suppression, while 240 SPS is intended for monitoring circuits requiring faster response times. In single-conversion mode, the chip automatically powers down after completing a conversion, significantly reducing quiescent current—a practical design feature for battery-powered handheld devices.

ADS1110 Key Parameters at a Glance

Resolution: 16-bit, no lost codes

Architecture: Δ-Σ (Delta-Sigma)

Input Channels: 1 channel, differential/single-ended

Sampling Rates: 15 / 30 / 60 / 240 SPS, programmable

Internal Reference: 2.048 V, ±0.05%, 5 ppm/°C

PGA Gain: 1 to 8 V/V

Interface: I²C-compatible, 8 selectable addresses, up to 400 kHz

Supply Voltage: 2.7 V to 5.5 V

Operating Current: 240 µA (typical)

Package: SOT-23-6 (3.05 mm × 1.75 mm)

Operating Temperature: -40°C to +125°C

When to Choose the ADS1110 and When to Avoid It

The engineering value of the ADS1110 lies not in its “versatility,” but in its clearly defined limits. When used in the right application, it is a highly cost-effective, compact, and precise data acquisition solution; when used in an unsuitable application, its single-channel capability and 240 SPS upper limit will become bottlenecks.

Scenarios where the ADS1110 is the preferred choice:

Single-channel battery voltage monitoring: Voltage acquisition for single or multi-cell batteries is the ADS1110’s most typical application. Its 16-bit resolution, combined with an internal reference, allows direct reading of the DC voltage level after the battery voltage is divided, eliminating the need for an external reference chip.

Single-channel pressure/temperature sensor signal conditioning: Differential small signals from bridge-type sensors or RTDs with voltage-divider outputs are amplified by the internal PGA and fed into a Δ-Σ modulator, completing the entire signal chain from sensor to digital output within the SOT-23-6 package.

Compact transmitters and 4–20 mA loop devices: On space-constrained transmitter boards, the ADS1110 eliminates the need for external oscillators, references, and PGAs, significantly reducing the BOM count and layout complexity.

Board-level low-speed voltage monitoring: Voltage monitoring of a critical node within a multi-rail power supply; I²C bus-mounted; 8 addresses allow multiple ADS1110 devices to be deployed on the same bus without requiring additional address decoding.

Portable medical devices: Battery-powered devices such as blood glucose meters and heart rate monitors require both low power consumption and high accuracy; the ADS1110’s single-conversion auto-shutdown feature helps extend battery life.

Recommended scenarios for evaluating other models:

Multi-channel polling required: The ADS1110 has only one input channel; for multi-channel acquisition, consider the ADS1112 or ADS1115 series.

Sampling rates higher than 240 SPS required: The ADS1110’s maximum rate is 240 SPS; for dynamic signals or scenarios requiring faster closed-loop response, select an ADC with a higher sampling rate.

Signals with rich frequency components requiring anti-aliasing design: The Δ-Σ architecture offers significant advantages in low-speed precision measurements; however, if the input signal contains high-frequency components, external anti-aliasing filtering is still required—the ADC alone cannot handle all filtering responsibilities.

Selection Extension: Alternatives and Compatible Models for the ADS1110

For projects evaluating domestic substitutes or alternative suppliers, there are several P2P-compatible or functionally equivalent options for the ADS1110. Domestic models such as the MS1100 and MS5110 claim to be pin-to-pin compatible with the ADS1110 and are largely aligned in key specifications, including bit depth, supply voltage range, programmable rates, on-chip reference, and I²C interface. It is important to note that “P2P compatibility” typically refers to direct replacement at the pin-out and package levels; however, details such as register behavior, power-up sequencing, and long-term reference drift should still be verified item by item during the prototyping phase—especially for applications involving precision measurement and batch consistency. While Mingjiada supplies genuine TI ADS1110 chips, we can also provide selection guidance and technical documentation to meet customers’ BOM substitution needs.

Why Source the ADS1110 Through Mingjiada

Selecting the right part number is only the first step; obtaining genuine chips from the correct batch at the right time is the true guarantee of a smooth mass production schedule. Mingjiada Electronics has been engaged in the distribution of electronic components since 1996, maintaining long-term supply relationships with over 500 original manufacturers, including TI, and operates warehouses and branch offices in Shenzhen, Hong Kong, and other locations.

Regarding the ADS1110 series, Mingjiada’s supply capabilities focus on three key areas:

Genuine, authentic products with full traceability. The ADS1110 is supplied directly through TI’s authorized channels, providing complete batch traceability information to prevent refurbished or loose new chips from entering production lines. For end products in industries such as medical and industrial—where long-term reliability is a critical requirement—this is more important than short-term price differences.

Stock Depth and Delivery Speed. Mingjiada maintains a constant inventory of TI’s mainstream models. Part numbers such as ADS1110A1IDBVR are available in both reel (3,000 pcs/reel) and cut-to-length formats. Standard orders can be delivered within 1 to 3 days, while urgent requests can be processed through an expedited shipping channel. Flexible support options are also available for sample requests during the R&D phase and small-batch trial production, without requiring a minimum order of an entire reel.

Pricing Support. Leveraging bulk purchasing and supply chain integration, Mingjiada offers competitive pricing for TI signal chain chips, with tiered pricing available for bulk purchases.

Mingjiada Electronics Contact Information: Phone +86 13410018555 / 86-755-83294757; Email sales@hkmjd.com; Address: Rooms 1239–1241, New Asia Guoli Building, Zhenzhong Road, Futian District, Shenzhen.

Tags: ADS1110A1IDBVR, ADS1110A1IDBV, ADS1110A1IDB, ADS1110A1ID, ADS1110A1I, ADS1110A1, ADS1110A, ADS1110