ADS1110A6IDBVR - 16-Bit Delta-Sigma ADC with PGA, SOT-23-6 | Texas Instruments
MPN: ADS1110A6IDBVR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.95 | $3.95 |
| 10 | $3.55 | $35.50 |
| 100 | $3.05 | $305.00 |
| 500 | $2.65 | $1,325.00 |
| 1,000 | $2.3 | $2,300.00 |
| 3,000 | $1.95 | $5,850.00 |
ADS1110A6IDBVR Overview
What is a Delta-Sigma ADC? A delta-sigma (sigma-delta) ADC is a type of analog-to-digital converter that uses oversampling and noise-shaping to achieve high resolution. Delta-sigma ADCs sit within the broader ADC hierarchy: ADC -> data converter -> data acquisition IC -> signal chain -> semiconductor. Compared to successive-approximation register (SAR) ADCs, delta-sigma converters offer superior noise performance for low-bandwidth, high-precision measurements such as sensors, weigh scales, and instrumentation.
Key features include an onboard 2.048 V reference with 5 ppm/C typical drift, an I2C-compatible 2-wire serial interface supporting Standard and Fast modes, self-calibration of offset and gain on every conversion, and a single-supply operation from 2.7 V to 5.5 V. The PGA allows full-scale differential input ranges of +/-2.048 V down to +/-0.256 V, enabling direct interface to low-output sensors such as thermocouples and strain gauges. The SOT-23-6 package measures approximately 2.9 mm x 1.6 mm with a low thermal resistance suitable for handheld and space-constrained designs.
The architecture is a third-order chopper-stabilized delta-sigma modulator followed by a digital SINC4 filter, achieving effective resolution of up to 16 bits noise-free at the slowest data rate. The self-calibration sequence runs automatically at power-on and on demand, eliminating offset and gain drift over temperature. The fixed I2C address option encoded in the part number (A6 = 0x90/0x91) eliminates external address-pin strapping in multi-channel systems that already use ADS1110A0/A1/A2/A3 variants.
Typical applications include portable instrumentation, weigh scales, industrial process control, consumer weighing and force-sensing products, temperature measurement with thermocouples or RTDs, and battery monitoring. The combination of small footprint, low power (typically 240 uA at 5 V), and high resolution makes it suitable for handheld battery-powered test equipment, IoT sensor nodes, and factory automation modules.
A key design consideration is the input common-mode range: the differential input must remain within 0 V to VDD when PGA gain is set to 1, and the PGA output cannot exceed the supply rails. For highest accuracy, use a clean low-noise supply and bypass VDD with both a 0.1 uF ceramic and a 10 uF tantalum or ceramic capacitor placed close to the supply pin.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers select and qualify the ADS1110A6IDBVR quickly.
Drop-in alternatives for ADS1110A6IDBVR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ADS1110A6IDBVR (same form factor and footprint) — differing in Package, Interface, Resolution, RoHS Status, Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADS1110A0IDBVR
✅ Drop-In📋 Reference alternative (not in catalog)
ADS1110A1IDBVR
✅ Drop-In📋 Reference alternative (not in catalog)
ADS1110A2IDBVR
✅ Drop-In📋 Reference alternative (not in catalog)
ADS1110A3IDBVRG4
✅ Drop-In✓ In Stock
$3.7 / Unit
View Datasheet →ADS1110A6IDBVRG4
✅ Drop-In✓ In Stock
$4.1 / Unit
View Datasheet →ADS1110A6IDBVT
✅ Drop-In📋 Reference alternative (not in catalog)
ADS1110A6IDBVR Maximum Ratings & Electrical Characteristics
| Resolution | 16 bits |
| Architecture | Delta-Sigma (Sigma-Delta) |
| Number of Input Channels | 1 differential |
| Sample Rate (max) | 240 SPS |
| Input Range (differential, FS) | ±2.048 V (PGA gain = 1) |
| Onboard Reference | 2.048 V, 5 ppm/°C typical drift |
| Programmable Gain Amplifier | 1, 2, 4, 8 V/V |
| Supply Voltage (VDD) | 2.7 V to 5.5 V |
| Supply Current (typical) | 240 uA at 5 V |
| Interface | I2C (Standard and Fast mode) |
| Fixed I2C Address | 0x90 / 0x91 (A6) |
| Package | SOT-23-6 (DBV) |
| Operating Temperature | -40°C to +85°C (industrial) |
| Mounting Type | Surface Mount |
| MSL Level | 2 (1 year floor life) |
| RoHS Status | Compliant |
ADS1110A6IDBVR Pin Configuration
| Pin 1 | GND — Ground reference for analog and digital sections |
| Pin 2 | AIN0 — Positive differential analog input |
| Pin 3 | AIN1 — Negative differential analog input |
| Pin 4 | VDD — Power supply input (2.7 V to 5.5 V) |
| Pin 5 | SDA — I2C serial data (open-drain, requires pull-up) |
| Pin 6 | SCL — I2C serial clock input |
Typical Applications
ADS1110A6IDBVR is suitable for 6 applications: Portable Weigh Scales, Thermocouple Temperature Measurement, Industrial Process Control, Battery Monitoring Systems, Consumer Force-Sensing and Touch, Portable Instrumentation and Data Loggers.
Portable Weigh Scales
The ADS1110A6IDBVR's 16-bit noise-free resolution and integrated PGA make it ideal for load-cell based weigh scales. At 15 SPS, the effective resolution is approximately 65,000 codes, allowing direct digitization of a 2 mV/V strain-gauge bridge output without external instrumentation amplifiers. The onboard 2.048 V reference with 5 ppm/°C drift eliminates the need for an external precision reference. The SOT-23-6 footprint enables sub-25 mm x 25 mm scale PCBs suitable for kitchen scales and pocket balances.
Recommended
Thermocouple Temperature Measurement
The ADS1110A6IDBVR digitizes type K, J, and T thermocouple outputs (typically 40 uV/°C for type K) with PGA gain = 8, giving a full-scale range of ±256 mV. Its 6 uV RMS noise floor at the slowest data rate corresponds to approximately 0.15°C resolution for type K. The differential input rejects thermocouple common-mode errors from ground loops. With I2C interface and SOT-23-6 footprint, it fits into handheld multimeters, industrial PID controllers, and HVAC sensors.
Recommended
Industrial Process Control
Factory automation modules use the ADS1110A6IDBVR to digitize 4-20 mA loops (after a sense resistor) and 0-10 V process signals (after resistor divider). Its 2.7 V to 5.5 V supply range operates from 24 V loops (post-regulation) and 3.3 V PLC backplanes. The I2C interface allows multi-ADC addressing using A0/A1/A2/A3/A6 variants, enabling 8-channel modules. Self-calibration on every conversion maintains accuracy despite long-term thermal cycling in factory environments.
Recommended
Battery Monitoring Systems
Battery management ICs (BMICs) in portable medical and IoT devices use the ADS1110A6IDBVR to monitor cell voltage, current, and temperature. Its low 240 uA typical supply current extends runtime on coin-cell powered systems. The differential input directly measures shunt-resistor voltage drops for coulomb counting, while the PGA adapts to varying cell voltages (1S Li-ion to 4S lead-acid after scaling). The SOT-23-6 package supports compact BMS modules under 10 mm x 10 mm.
Recommended
Consumer Force-Sensing and Touch
Force-sensitive resistors (FSRs) and capacitive touch interfaces in consumer electronics use the ADS1110A6IDBVR for sub-millisecond response with 16-bit precision. The PGA gain of 8 detects FSR voltage dividers down to 50 mV, enabling thin-profile touch buttons in appliances, gaming controllers, and wearable rings. Its 240 uA supply current suits battery-powered wearables. The fixed I2C address of A6 (0x90) simplifies firmware that addresses peripherals by slot number.
Recommended
Portable Instrumentation and Data Loggers
Handheld multimeters, sound level meters, and multi-channel data loggers use the ADS1110A6IDBVR to digitize sensor inputs at the lowest power budget. Its 16-bit resolution at 15 SPS with 240 uA supply current enables year-long battery life on 2 x AA cells. The I2C bus accommodates multiple ADS1110 address variants for up to 5 channels per bus, and the SOT-23-6 footprint fits inside probe-tip enclosures. Engineers benefit from the self-calibrating architecture that removes routine offset/gain maintenance.
Recommended
Recommended Products Summary
Engineering reference data for ADS1110A6IDBVR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADS1110A0IDBVR | ADS1110A1IDBVR | ADS1110A2IDBVR | ADS1110A3IDBVRG4 | ADS1110A6IDBVRG4 |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | SOT-23-6 (DBV) | SOT-23-6 - same | SOT-23-6 - same | SOT-23-6 - same | SOT-23-6 - same | SOT-23-6 - same |
| Resolution | 16 bits | 16 bits | 16 bits | 16 bits | 16 bits | 16 bits |
| I2C Address | 0x90/0x91 (A6) | 0x90/0x91 (A0) | 0x92/0x93 (A1) | 0x94/0x95 (A2) | 0x96/0x97 (A3) | 0x90/0x91 (A6) |
| Sample Rate (max) | 240 SPS | 240 SPS | 240 SPS | 240 SPS | 240 SPS | 240 SPS |
| Onboard Reference | 2.048 V | 2.048 V | 2.048 V | 2.048 V | 2.048 V | 2.048 V |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Pin-to-Pin Compatible | Yes (reference) | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Fixed I2C address eliminates external strapping (vs ADS1115IDGSR (MSOP-10, 4 channels, 0x48-0x4B ADDR pin))
- Integrated 2.048 V reference with 5 ppm/°C drift (vs ADS1100A7IDBVRG4 (12-bit, no internal PGA in same gains))
- Self-calibration on every conversion (vs Generic SAR ADCs without auto-calibration)
Design Notes
Bypass VDD with both a 0.1 uF ceramic and a 10 uF tantalum or ceramic capacitor placed within 5 mm of pin 4. According to the TI datasheet, the ADC is sensitive to high-frequency supply noise; a ferrite bead on the supply rail is recommended if the ADC shares a rail with switching converters. The typical supply current of 240 uA at 5 V rises to ~600 uA during conversion but returns to ~0.5 uA in power-down mode.
Keep analog input traces short and route them away from digital lines (SDA/SCL) to minimize crosstalk. Place a guard trace or ground pour between AIN0/AIN1 and the digital bus. The SOT-23-6 package requires thermal relief pads on VDD and GND; use 4 vias on the GND pad to keep ground impedance low. According to TI layout guidelines, the exposed thermal pad (if present on the land pattern) should be tied to GND.
Do not apply inputs beyond VDD + 0.3 V or below GND - 0.3 V without current-limiting resistors; the analog inputs are not over-voltage tolerant. Ensure I2C pull-up resistors are sized for the chosen data rate (typically 4.7 kohm for Standard mode, 2.2 kohm for Fast mode). Verify that the I2C address A6 (0x90/0x91) does not collide with other devices on the same bus before committing to firmware.
Compliance Information
RoHS and Pb-free confirmed per TI product page. Not AEC-Q100 qualified - for automotive applications, contact TI for automotive-grade alternatives in the ADS1110 family.