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ADS1251UG4 The ADS1251UG4 is a 24-bit, 20kHz sigma-delta analog-to-digital converter from Texas Instruments. It features differential inputs, SPI interface, and low power consumption of 8mW at 20kHz.
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ADS1251UG4

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The ADS1251UG4 is a 24-bit, 20kHz sigma-delta analog-to-digital converter from Texas Instruments. It features differential inputs, SPI interface, and low power consumption of 8mW at 20kHz.
✓ Total Stock: 11,430 pcs

ADS1251UG4 Available from 2 distributors

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✓ Non-Authorised
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Romaks Technologies ✓
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7,861 pcs
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7861 pcs On Request 1 On Request On Request On Request On Request On Request
Components Technology Group, Inc. ✓
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3,569 pcs
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3569 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

ADS1251UG4 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Architecture
Configuration
Data Interface
Input Type
Lead Spacing
Lead Style
Mounting Type
Noise
Number of A
Number of Bits
Number of Inputs
Operating Temperature
Reference Type
Sampling Rate (Per Second)
Supplier Device Package
Voltage
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ADS1251UG4 Description

Short technical summary and product information.

The ADS1251UG4 is a precision 24-bit sigma-delta ADC from Texas Instruments. It operates from a single +5V supply and achieves 19 bits effective resolution with 1.5ppm RMS noise. The converter guarantees no missing codes at 24 bits.

 

Key specifications include a maximum sampling rate of 20kHz, differential input, external reference (0.5V to 5V), and SPI data interface. Typical power dissipation is 8mW at 20kHz and 5mW at 10kHz. Integral nonlinearity is 15ppm maximum.

 

The device is designed for high-resolution measurement applications such as cardiac diagnostics, thermocouple interfaces, blood analysis, infrared pyrometers, chromatography, and precision process control. It includes a power-down mode and sync mode.

 

The ADC is offered in an 8-pin SOIC package (8-SOIC) for surface mount assembly. Operating temperature range is -40°C to 85°C. The device is RoHS and REACH compliant per manufacturer.

ADS1251UG4 Quick Information

Product Type: Analog to Digital Converter (ADC)
Series: ADS1251
Canonical Name: ADS1251UG4 - 24-Bit, 20kHz, Low-Power Analog-to-Digital Converter
Subcategory: Precision ADC

ADS1251UG4 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ADS1251UG4 Features

  • 24-bit resolution with no missing codes.
  • 19-bit effective resolution at 20kHz data rate.
  • Low noise: 1.5ppm RMS noise.
  • Differential input with external reference.
  • Low power: 8mW at 20kHz.

ADS1251UG4 Applications

  • Used in cardiac diagnostic equipment.
  • Ideal for direct thermocouple interfaces.
  • Suitable for blood analysis instruments.
  • Applied in precision process control systems.

ADS1251UG4 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the resolution of the ADS1251UG4?

24 bits.

What is the sampling rate?

20kHz.

What is the supply voltage?

5V.

What is the operating temperature range?

-40°C to 85°C.

What package does the ADS1251UG4 come in?

8-SOIC (0.154", 3.90mm Width).

Is the ADS1251UG4 RoHS compliant?

Yes, RoHS3 compliant per manufacturer.

What is the data interface?

SPI.

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