ADS1251U/2K5
Analog to Digital Converters (ADC)
Technical Specifications
| Type | Description |
|---|---|
| Maximum Clock Speed | 8 MHz |
| Quiescent Current (Iq) | 400nA |
| Integral non - linearity | - |
| Voltage Reference | External |
| Clock/Oscillator | External |
| Resolution(Bits) | 20.8kHz;24 |
| S/N Ratio | 105dB |
| DNL (LSB) | - |
| Type | Description |
|---|---|
| ADC architecture | Sigma-Delta |
| Programmable Gain | Not supported |
| Operating Temp | -40°C ~ +85°C |
| Interface | Serial port |
| Working Voltage V | 5 V |
| Channels | 1.0 |
| Features | Bipolar input;Multi-chip synchronization;Integrated modulator;Built-in digital filter |
| Package / Case | SOIC-8 |
Product Introduction
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 features wide dynamic range, and 24 bits of no missing code performance. Effective resolution of 19 bits (1.5ppm of rms noise) is achieved at conversion rates up to 20kHz.
The ADS1251 is designed for high-resolution measurement applications in cardiac diagnostics, smart transmitters, industrial process control, weigh 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).
Features
- 24 BITS—NO MISSING CODES 19 BITS EFFECTIVE RESOLUTION UP TO 20kHz DATA RATE
- LOW NOISE: 1.5ppm
- DIFFERENTIAL INPUTS
- INL: 15ppm (max)
- EXTERNAL REFERENCE (0.5V to 5V)
- POWER-DOWN MODE
- SYNC MODE
- LOW POWER: 8mW at 20kHz 5mW at 10kHz
Applications
- - CARDIAC DIAGNOSTICS - DIRECT THERMOCOUPLE INTERFACES - BLOOD ANALYSIS - INFRARED PYROMETERS - LIQUID/GAS CHROMATOGRAPHY - PRECISION PROCESS CONTROL
Datasheet
Alternative Parts
Common ADS1251U/2K5 alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Sourcing Information
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