ADS1110A6IDBVRG4 - 16-Bit 240SPS Delta-Sigma ADC | Texas Instruments
MPN: ADS1110A6IDBVRG4 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.5 | $6.50 |
| 10 | $5.85 | $58.50 |
| 100 | $5.2 | $520.00 |
| 500 | $4.65 | $2,325.00 |
| 1,000 | $4.1 | $4,100.00 |
ADS1110A6IDBVRG4 Overview
A delta-sigma ADC is a type of analog-to-digital converter that uses oversampling and noise-shaping to achieve high resolution at low sample rates. The ADS1110's sigma-delta modulator front end, combined with a digital SINC4 filter, delivers true 16-bit noise-free resolution. Because delta-sigma converters trade speed for resolution, the ADS1110 is optimized for precision DC and low-frequency measurements rather than audio or wideband signal acquisition, where successive-approximation register (SAR) ADCs would be more appropriate. The part integrates a PGA with gains of 1, 2, 4, or 8, which lets small differential signals (down to ±15 mV full scale) be digitized directly without external front-end amplification.
Key features include differential input ranges of ±2.048 V, ±1.024 V, ±0.512 V, and ±0.256 V, 15 / 30 / 60 / 240 SPS selectable data rates, an integrated 2.048 V low-drift reference, and a single-supply 2.7 V to 5.5 V analog/digital supply range. The converter is continuously self-calibrating, includes an on-chip oscillator (no external crystal required), and offers four I2C slave addresses. Per the manufacturer datasheet, the part dissipates only 0.9 mW at 240 SPS on a 3 V supply, enabling battery-friendly designs.
The architecture combines a switched-capacitor delta-sigma modulator with a third-order digital filter, achieving >84 dB of power-supply rejection at the modulator and excellent common-mode noise immunity, both essential for industrial sensor measurements. The internal reference drift is typically 5 ppm/°C, and the PGA eliminates the gain-error budget of an external instrumentation amplifier in many thermocouple and bridge-sensor applications.
Typical applications include portable instrumentation, temperature measurement with thermocouples or RTDs, strain-gauge and load-cell readouts, factory-multimeter controllers, battery monitoring, and any space-constrained precision measurement node. Designers benefit from the ADS1110A6IDBVRG4's small footprint, self-contained approach (reference + oscillator + PGA), and low power draw when designing wearables, IoT edge nodes, and industrial sensor front ends.
When designing with this part, use a 0.1 µF decoupling capacitor on VDD placed within 5 mm of the pin, keep analog and digital grounds joined at a single star point under the IC, and choose the lowest data rate that meets system bandwidth to maximize effective resolution. A 10 nF bypass on AIN+/AIN- improves common-mode noise rejection in noisy environments.
Drop-in alternatives for ADS1110A6IDBVRG4 — 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 ADS1110A6IDBVRG4 (same form factor and footprint) — differing in RoHS Status, Interface, Operating Temperature, Package, Resolution.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADS1110A6IDBVR
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View Datasheet →ADS1110A3IDBVRG4
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View Datasheet →ADS1110A0IDBVR
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ADS1110A6IDBVT
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ADS1110A6IDBVRG4
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View Datasheet →ADS1100A7IDBVRG4
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View Datasheet →ADS1110A6IDBVRG4 Maximum Ratings & Electrical Characteristics
| Resolution | 16 bits |
| Number of Channels | 1 differential |
| ADC Architecture | Delta-Sigma (Sigma-Delta) |
| Data Rate | 15 / 30 / 60 / 240 SPS (selectable) |
| Input Type | Differential |
| Full-Scale Input Range | ±2.048 V / ±1.024 V / ±0.512 V / ±0.256 V (PGA gain 1/2/4/8) |
| Integrated PGA | Yes, gain 1, 2, 4, or 8 |
| Internal Reference Voltage | 2.048 V |
| Analog/Digital Supply | 2.7 V to 5.5 V |
| Digital Interface | I2C-compatible (standard, fast, high-speed) |
| I2C Addresses | 4 selectable (by ADDR pin) |
| Operating Temperature | -40°C to +125°C (industrial) |
| Package | SOT-23-6 (DBV) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant (G4 suffix = green / lead-free) |
ADS1110A6IDBVRG4 Pin Configuration
| Pin 1 | VDD — Analog + digital power supply input, 2.7 V to 5.5 V |
| Pin 2 | GND — Ground (analog + digital common) |
| Pin 3 | SCL — I2C serial clock input |
| Pin 4 | SDA — I2C serial data input/output (open-drain) |
| Pin 5 | ADDR — I2C slave address select (four addresses by tying to GND, VDD, SCL, or SDA) |
| Pin 6 | AIN+/AIN- — Differential analog input pair (true differential) |
Typical Applications
ADS1110A6IDBVRG4 is suitable for 7 applications: Thermocouple Temperature Measurement, Strain-Gauge and Load-Cell Readout, RTD Temperature Sensing, Portable Battery-Powered Instrumentation, Factory Multimeter Front End, Battery Monitoring and Management, Industrial Sensor Signal Conditioning.
Thermocouple Temperature Measurement
The ADS1110A6IDBVRG4's integrated 2.048 V reference and on-chip PGA with gains of 1, 2, 4, or 8 let it digitize microvolt-level thermocouple signals without external amplification. Per the TI ADS1110 datasheet, the lowest ±0.256 V full-scale range resolves signals of ~15 mV with 16-bit noise-free resolution at 15 SPS, which is exactly the dynamic range needed for K-type and J-type thermocouples over -200°C to +1200°C. Cold-junction compensation is handled in software using a separate temperature sensor; the ADC's low 5 ppm/°C reference drift limits gain error across industrial ambient swings.
Recommended
Strain-Gauge and Load-Cell Readout
Bridge sensors such as load cells output differential signals of a few millivolts, and the ADS1110A6IDBVRG4's on-chip PGA with gain 8 (±0.256 V range) handles these directly. The internal 2.048 V reference drives the bridge excitation, eliminating a separate reference IC. According to the TI datasheet SBAS256, the >84 dB power-supply rejection at the modulator simplifies power-rail filtering in noisy industrial environments, and the 240 SPS data rate is fast enough for scales and force gauges sampled once per second. The SOT-23-6 footprint fits tight PCB layouts inside handheld scales.
Recommended
RTD Temperature Sensing
100 Ω, 500 Ω, and 1000 Ω platinum RTDs require ratiometric measurement where the excitation current flows through the RTD and a precision reference resistor, and the ADC differential input measures the ratio. The ADS1110A6IDBVRG4's ±2.048 V full-scale range and 16-bit resolution suit 4-wire RTD measurements of PT100/PT500/PT1000 sensors across -200°C to +850°C. With a 1 mA excitation current, a PT100 RTD's 38.5 Ω to 390 Ω swing maps to ~39 mV to 390 mV, easily captured on the ±0.512 V PGA range (gain = 4) for high noise-free resolution.
Recommended
Portable Battery-Powered Instrumentation
With only 0.9 mW power consumption at 3 V (per the TI ADS1110 datasheet) and a 2.7 V to 5.5 V supply range, the ADS1110A6IDBVRG4 can be powered by a single Li-ion cell or two AA cells. The internal oscillator eliminates a crystal, and the small SOT-23-6 footprint enables pocket-sized multimeters and handheld environmental loggers. According to TI, the part supports power-down mode between conversions, drawing only a few microamps in standby - critical for multi-month battery life in IoT edge nodes sampling once per second.
Recommended
Factory Multimeter Front End
Multi-range industrial multimeters and process controllers need a precision ADC to digitize DC voltage, current, and transducer signals; the ADS1110A6IDBVRG4's four programmable input ranges (±2.048 V / ±1.024 V / ±0.512 V / ±0.256 V) cover most DC ranges without external attenuators. Per TI, the I2C interface with four selectable slave addresses lets four ADCs share one I2C bus - ideal for 4-channel data-acquisition cards. The industrial -40°C to +125°C operating range matches factory-floor temperature specs.
Recommended
Battery Monitoring and Management
Lithium-ion battery management systems monitor cell voltage, current, and temperature to enforce safe operating limits. The ADS1110A6IDBVRG4's differential inputs can directly measure a battery cell's terminal voltage using the cell's own voltage as the reference (after level shifting), and the integrated PGA simplifies current-sense amplifier signal conditioning. With four I2C slave addresses, multiple ADS1110s on the same I2C bus can monitor 4-cell to 16-cell packs. The 240 SPS data rate supports per-second cell voltage updates needed by most BMS firmware.
Recommended
Industrial Sensor Signal Conditioning
Industrial pressure sensors, flow meters, and gas detectors produce low-level analog outputs that require amplification and high-resolution digitization. The ADS1110A6IDBVRG4's combination of integrated PGA, integrated 2.048 V reference, and internal oscillator shrinks the analog front end to a single IC plus a few passives. According to the TI ADS1110 datasheet, the part's 84 dB PSRR simplifies power-rail filtering on noisy industrial 24 V buses regulated down to 5 V or 3.3 V. The SOT-23-6 footprint fits in DIN-rail sensor heads.
Recommended
Recommended Products Summary
Engineering reference data for ADS1110A6IDBVRG4 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADS1110A6IDBVR | ADS1110A3IDBVRG4 | ADS1110A0IDBVR | ADS1110A6IDBVT | ADS1100A7IDBVRG4 |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | SOT-23-6 | 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 | 12 bits |
| Maximum Data Rate | 240 SPS | 240 SPS | 60 SPS | 15 SPS | 240 SPS | 8 SPS |
| Differential Input Range | ±2.048 V (PGA 1) | ±2.048 V | ±2.048 V | ±2.048 V | ±2.048 V | ±2.048 V |
| Internal Reference Voltage | 2.048 V | 2.048 V | 2.048 V | 2.048 V | 2.048 V | 2.048 V |
| Integrated PGA | Yes (1, 2, 4, 8) | Yes (1, 2, 4, 8) | Yes (1, 2, 4, 8) | Yes (1, 2, 4, 8) | Yes (1, 2, 4, 8) | Yes (1, 2, 4, 8) |
| Digital Interface | I2C | I2C | I2C | I2C | I2C | I2C |
| Operating Temperature | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C |
| Lifecycle Status | Obsolete | Active | Active | Active | Active | Active |
Key Differentiators
- 240 SPS data rate is the highest in the ADS1110 family (vs ADS1110A0IDBVR)
- Single SOT-23-6 footprint integrates PGA, reference, oscillator (vs ADS1100A7IDBVRG4)
- Active production variant eliminates obsolete-part risk (vs ADS1110A6IDBVRG4)
Design Notes
Place a 0.1 µF ceramic decoupling capacitor on VDD within 5 mm of the IC pin, and a 10 µF bulk capacitor on the same node to filter low-frequency supply noise. The ADS1110's internal reference rejects >84 dB of supply noise at the modulator, but bypassing is still critical. Use a single star ground point under the IC, joining analog and digital grounds at the GND pin to avoid ground loops.
Add a 10 nF ceramic capacitor between AIN+/AIN- and GND (differential mode) to filter high-frequency common-mode noise, particularly in industrial environments with motor inverters or relay switching. The ADS1110A6IDBVRG4's on-chip PGA is bandwidth-limited, so external filtering does not affect the signal chain's pass-band but significantly improves CMRR in noisy installations.
Do not connect the ADDR pin to a non-grounded, non-trace node during PCB layout - floating this pin can cause I2C address collisions. The ADDR pin must be tied to GND, VDD, SDA, or SCL to select one of four I2C addresses. Also, ensure that the differential inputs AIN+/AIN- remain within the absolute maximum rating of VDD + 0.3 V; exceeding this can permanently damage the ESD diodes.
Compliance Information
G4 suffix on TI parts indicates green / lead-free / RoHS-compliant finish. AEC-Q100 not applicable - this is a precision ADC for industrial instrumentation, not automotive grade.