Specifications
| Type | Description |
|---|---|
| Part Number | ADS1119 |
| Manufacturer | Texas Instruments |
| Product Type | ADC |
| Category | Signal Chain |
| Package Case | 16-pin WQFN 3.00 mm x 3.00 mm x 0.75 mm; 16-pin TSSOP 5.00 mm x 4.40 mm |
| ADC Resolution | 16 bits; no missing codes |
| Input Channels | 2 differential or 4 single-ended inputs; through flexible input multiplexer |
| Data Rates | 20, 90, 330, 1000 SPS; all gains, internal reference enabled unless otherwise noted |
| Maximum Data Rate | 1000 SPS; single-cycle settling |
| Programmable Gain | 1 and 4; internal gain stage |
| Analog Supply Voltage | 2.3 to 5.5 V |
| Digital Supply Voltage | 2.3 to 5.5 V |
| Operating Ambient Temperature | -40 to 125 °C |
| Internal Reference Voltage | 2.048 V |
| I2C Interface Speed | Up to 1 Mbps |
| I2C Address Options | 16 pin-configurable addresses |
| ESD Rating, HBM | ±2000 V |
| ESD Rating, CDM | ±750 V |
| Power Dissipation | 1.04 mW typ; conversion mode, internal reference selected |
| Datasheet Status | request_only |
Product Overview
The ADS1119 is a Texas Instruments 16-bit delta-sigma ADC in the Signal Chain category. Its input multiplexer supports either 2 differential inputs or 4 single-ended inputs, with a differential input range of -VREF/Gain to VREF/Gain and programmable gain settings of 1 and 4. Conversion data rates are 20, 90, 330, and 1000 SPS, with single-cycle settling at the 1000 SPS maximum data rate.
The device operates from 2.3 to 5.5 V analog and digital supplies and allows an AGND-to-DGND ground offset from -0.1 to 0.1 V. It includes a 2.048 V internal voltage reference, supports an external differential reference from 0.75 V to AVDD, and specifies operation from -40 to 125 °C.
Interface and assembly options are defined for I2C-compatible systems and compact board layouts. The ADS1119 supports Standard-mode, Fast-mode, and Fast-mode Plus I2C operation up to 1 Mbps with 16 pin-configurable addresses selected using A0 and A1. Package options are 16-pin WQFN and 16-pin TSSOP.
Key Features
- 16-bit delta-sigma ADC with no missing codes
- 2 differential or 4 single-ended input channels
- 20, 90, 330, and 1000 SPS data rates
- Programmable gain settings of 1 and 4
- 2.3 to 5.5 V analog and digital supplies
- 2.048 V internal voltage reference
- I2C-compatible interface up to 1 Mbps
- 16 pin-configurable I2C address options
- -40 to 125 °C operating ambient range
- 16-pin WQFN and 16-pin TSSOP package options
Typical Applications
- Differential sensor signal acquisition
- Single-ended voltage measurement
- I2C-connected measurement modules
- Low-speed precision data conversion
- Multi-channel analog monitoring
- Temperature-range industrial measurement nodes
Procurement Notes
When requesting a quote for ADS1119, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What resolution does the ADS1119 ADC provide?
The ADS1119 provides 16-bit ADC resolution with no missing codes. It is a Texas Instruments delta-sigma ADC intended for precision measurement functions using differential or single-ended input configurations.
How many analog inputs are available on ADS1119?
The ADS1119 input multiplexer supports 2 differential inputs or 4 single-ended inputs. The differential input voltage range is specified as -VREF/Gain to VREF/Gain.
What interface does ADS1119 use for digital communication?
ADS1119 uses an I2C-compatible 2-wire interface with speeds up to 1 Mbps. It supports Standard-mode, Fast-mode, and Fast-mode Plus, and provides 16 pin-configurable addresses selected with A0 and A1.
What is the supply voltage range for ADS1119?
The ADS1119 operates from 2.3 to 5.5 V on both analog and digital supplies. Power dissipation in conversion mode with internal reference selected is typically 1.04 mW.
Is the ADS1119 available for sourcing through LDeepAI?
Yes, the ADS1119 is available for RFQ through LDeepAI. Submit a request via the product page to receive sourcing support and current availability information.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.