ADS1251U
Active24-BIT, 20KHZ, LOW-POWER ANALOG-TO-DIGITAL CONVERTER
Deep-Dive with AI
Search across all available documentation for this part.
ADS1251U
Active24-BIT, 20KHZ, LOW-POWER ANALOG-TO-DIGITAL CONVERTER
Technical Specifications
Parameters and characteristics for this part
| Specification | ADS1251U |
|---|---|
| Architecture | Sigma-Delta |
| Configuration | ADC |
| Data Interface | SPI |
| Input Type | Differential |
| Mounting Type | Surface Mount |
| Number of A/D Converters | 1 |
| Number of Bits | 24 |
| Number of Inputs | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 8-SOIC |
| Package / Case [x] | 0.154 in |
| Package / Case [y] | 3.9 mm |
| Reference Type | External |
| Sampling Rate (Per Second) | 20 k |
| Supplier Device Package | 8-SOIC |
| Voltage - Supply, Analog | 5 V |
| Voltage - Supply, Digital | 5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 14.76 | |
| 10 | $ 13.56 | |||
| 75 | $ 13.00 | |||
| 150 | $ 11.45 | |||
| 300 | $ 10.89 | |||
| 525 | $ 10.19 | |||
| 1050 | $ 9.35 | |||
| Newark | Each | 1 | $ 17.31 | |
| 5 | $ 16.67 | |||
| 10 | $ 16.06 | |||
| 25 | $ 15.52 | |||
| 50 | $ 15.02 | |||
| 150 | $ 14.74 | |||
| Texas Instruments | TUBE | 1 | $ 11.55 | |
| 100 | $ 10.09 | |||
| 250 | $ 7.78 | |||
| 1000 | $ 6.96 | |||
Description
General part information
ADS1251 Series
The ADS1251 is a precision, wide dynamic range, delta-sigma, Analog-to-Digital (A/D) converter with 24-bit resolution operating from a single +5V supply. The delta-sigma architecture is used for wide dynamic range and to guarantee 24 bits of no missing codes performance. Effective resolution of 19 bits (1.5ppm of rms noise) is achieved for conversion rates up to 20kHz.
The ADS1251 is designed for high-resolution measurement applications in cardiac diagnostics, smart transmitters, industrial process control, weight scales, chromatography, and portable instrumentation. The converter includes a flexible, 2-wire synchronous serial interface for low-cost isolation.
The ADS1251 is a single-channel converter and is offered in an SO-8 package. It is pin-compatible with the faster ADS1252 (41.7kHz data rate).
Documents
Technical documentation and resources
