ADS7811UG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The ADS7811UG4 is a high-precision 16-bit successive approximation ADC from Texas Instruments with a parallel output interface in a 28-pin SOIC package. It features a single differential input channel accepting ±2.5 V signals, a 4 µs maximum conversion time, and 0.0092% maximum linearity error. Available RoHS-compliant with worldwide distribution.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- OBSOLETE
- Datasheet
- ADS7811UG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -25.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 16-bit resolution successive approximation ADC with 0.0092% maximum linearity error for high-accuracy measurement applications
- Fast 4 µs maximum conversion time with ±2.5 V differential analog input range for versatile signal acquisition
- Parallel data output interface enables direct high-speed bus connection without serialization overhead
- 28-pin SOIC (R-PDSO-G28) RoHS-compliant package with dual ±5 V supply for precision bipolar signal conditioning
Applications
The ADS7811UG4 is designed for precision data acquisition systems, industrial measurement instruments, and medical diagnostic equipment requiring high-resolution analog-to-digital conversion of differential signals. Its 16-bit accuracy and fast 4 µs conversion time make it suitable for dynamic signal analysis, waveform digitization, and closed-loop control applications. The parallel bus interface integrates seamlessly with DSPs and microcontrollers in laboratory instrumentation and automated test equipment.
Specifications
| YTEOL | 0 |
| Analog Input Voltage-Max | 2.5V |
| Analog Input Voltage-Min | -2.5 V |
| Conversion Time-Max | 4 µs |
| Converter Type | ADC, SUCCESSIVE APPROXIMATION |
| JESD-30 Code | R-PDSO-G28 |
| JESD-609 Code | e4 |
| Linearity Error-Max (EL) | 0.0092% |
| Negative Supply Voltage-Nom | -5 V |
| Number of Analog In Channels | 1 |
| Number of Bits | 16 |
| Number of Functions | 1 |
| Output Bit Code | 2'S COMPLEMENT BINARY |
| Output Format | PARALLEL, WORD |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP28,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Sample Rate | 0.25MHz |
| Sample and Hold / Track and Hold | SAMPLE |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | OTHER |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| HTS Code | 8542.39.00.30 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the resolution and accuracy of the ADS7811UG4?
The ADS7811UG4 is a 16-bit successive approximation ADC. It achieves a maximum linearity error of only 0.0092%, providing excellent accuracy for precision measurement applications. The maximum conversion time is 4 µs, and it accepts a differential analog input range of ±2.5 V, making it well-suited for high-resolution data acquisition systems.
What type of output interface does the ADS7811UG4 use?
The ADS7811UG4 features a parallel data output interface, allowing the 16-bit conversion result to be transferred directly to a data bus without serialization. This parallel interface simplifies interfacing with DSPs, FPGAs, and microcontrollers that have parallel bus peripherals, and supports faster data throughput compared to serial-output ADCs in high-speed digitization applications.
What are the supply voltage requirements for the ADS7811UG4?
The ADS7811UG4 requires a dual power supply: a nominal positive supply and a nominal negative supply of -5 V to support its bipolar ±2.5 V differential input range. This dual-supply architecture is common in precision analog front-end designs where both positive and negative signal swings must be captured accurately, such as in bridge sensor amplification and AC signal measurement.
What package does the ADS7811UG4 use?
The ADS7811UG4 is housed in a 28-pin SOIC (Small Outline Integrated Circuit) package with JEDEC code R-PDSO-G28. The JESD-609 code e4 confirms it is lead-free and RoHS-compliant, suitable for modern environmentally conscious manufacturing. The SOIC package supports standard automated SMT assembly and reflow soldering processes.
What applications is the ADS7811UG4 best suited for?
The ADS7811UG4 excels in precision instrumentation, automated test equipment, industrial process control, and medical measurement systems. Its 16-bit resolution, ±2.5 V differential input, and fast 4 µs conversion time are especially valuable in data loggers, spectrum analyzers, vibration monitoring systems, and any application requiring high-accuracy digitization of low-level differential analog signals.
Related Guides
CDCE913PWR Programmable Clock Synthesizer Design Guide
Complete design guide for the CDCE913PWR clock synthesizer: VCO range, I2C programming, decoupling, and layout best practices for embedded systems.
May 22, 2026
OPA4277MDTEP Precision Quad Op-Amp Selection Guide: How to Choose the Right Variant
How to choose the right OPA4277 quad precision op-amp variant—OPA4277MDTEP vs UA—covering offset voltage, CMRR, supply range, and temperature grade.
May 22, 2026
SN74LVC14APWR Hex Schmitt-Trigger Inverter: Application Note and Design Guide
Complete design guide for the SN74LVC14APWR hex Schmitt-trigger inverter: thresholds, decoupling, oscillator design, package selection, and common pitfalls.
May 21, 2026
TPS62841DGRR Buck Converter Selection Guide: Ultra-Low 60 nA IQ for Battery-Powered IoT
How to choose the right TPS62841 variant for IoT, wearables, and wireless sensors: quiescent current, voltage range, package, and application examples.
May 21, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“FindMyChip sourced our entire STM32 BOM in 48 hours when our usual distributor had 16-week lead times.”