Specifications
| Type | Description |
|---|---|
| Part Number | ADS1219 |
| Manufacturer | Texas Instruments |
| Product Type | Delta-Sigma 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 | 24 bits; no missing codes |
| Input Channels | 2 differential or 4 single-ended inputs; through flexible input multiplexer |
| Programmable Gain | 1, 4; gain stage following input buffers |
| Data Rate | 20, 90, 330, 1000 SPS; all gains, internal reference enabled unless otherwise noted |
| Maximum Data Rate | 1000 SPS; single-cycle settling |
| Effective Resolution | Up to 20 bits; typical device capability |
| Analog Supply Voltage | 2.3 to 5.5 V; AVDD to AGND recommended operating condition |
| Digital Supply Voltage | 2.3 to 5.5 V; DVDD to DGND recommended operating condition |
| Operating Ambient Temperature | -40 to 125 °C; recommended operating condition |
| Internal Reference Voltage | 2.048 V; internal voltage reference |
| I2C Interface Speed | Up to 1 Mbps; I2C-compatible 2-wire interface |
| I2C Address Options | 16 pin-configurable addresses; selected using A0 and A1 address pins |
| Input-Referred Noise | 5.04 µVRMS; gain = 1, data rate = 20 SPS |
| Integral Nonlinearity | -15 ppm FSR min, 4 ppm FSR typ, 15 ppm FSR max |
| Input Offset Voltage | ±4 µV; differential inputs |
| ESD Rating, Human-Body Model | ±2000 V; per ANSI/ESDA/JEDEC JS-001 |
| Power Dissipation | 1.04 mW typ; conversion mode, internal reference selected |
| Datasheet Status | request_only |
Product Overview
The ADS1219 is a Texas Instruments 24-bit delta-sigma ADC in the Signal Chain category. Its input structure supports 2 differential or 4 single-ended channels through a flexible input multiplexer, followed by a programmable gain stage with gain settings of 1 and 4. The converter provides no-missing-codes 24-bit resolution and up to 20 bits effective resolution.
Supported 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 V to 5.5 V analog and digital supplies, allows an AGND-to-DGND difference from -0.1 V to 0.1 V, and supports ambient operation from -40 to 125 °C.
Package options include a 16-pin WQFN measuring 3.00 mm x 3.00 mm x 0.75 mm and a 16-pin TSSOP measuring 5.00 mm x 4.40 mm. The device includes a 2.048 V internal reference, a 1.024 MHz internal oscillator, I2C-compatible communication up to 1 Mbps, and 16 pin-configurable I2C addresses selected with A0 and A1.
Key Features
- 24-bit delta-sigma ADC with no missing codes
- 2 differential or 4 single-ended analog inputs
- Programmable gain settings of 1 and 4
- 20, 90, 330, and 1000 SPS data rates
- Up to 20 bits effective resolution
- 2.3 V 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 addresses
- -40 to 125 °C ambient operating range
Typical Applications
- Differential sensor measurement
- Single-ended signal acquisition
- Low-speed precision data conversion
- I2C-connected measurement modules
- Multi-channel analog input systems
- Temperature-range instrumentation
Procurement Notes
When requesting a quote for ADS1219, 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 ADS1219 provide?
The ADS1219 provides 24-bit ADC resolution with no missing codes. The extracted device capability also lists effective resolution up to 20 bits, depending on operating conditions.
How many analog inputs does the ADS1219 support?
The ADS1219 supports 2 differential inputs or 4 single-ended inputs through its flexible input multiplexer. A programmable gain stage after the input buffers supports gain settings of 1 and 4.
What supply voltage range is specified for ADS1219?
Both analog and digital supplies are specified from 2.3 V to 5.5 V as recommended operating conditions. The allowed AGND-to-DGND difference is -0.1 V to 0.1 V.
What interface and address options are available?
The ADS1219 uses an I2C-compatible 2-wire interface rated up to 1 Mbps. It provides 16 pin-configurable I2C addresses selected using the A0 and A1 address pins.
What packaging options are available for the ADS1219?
The ADS1219 is offered in a 16-pin WQFN package measuring 3.00 mm x 3.00 mm x 0.75 mm and a 16-pin TSSOP package measuring 5.00 mm x 4.40 mm.
How can I source the ADS1219 through LDeepAI?
ADS1219 is available through LDeepAI sourcing support. Submit an RFQ through the product page for pricing and 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.