ADS1253 24 位 20kHz 低功耗模数转换器 | 德州仪器 TI.com.cn

ADS1253
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24 位 20kHz 低功耗模数转换器

24 位 20kHz 低功耗模数转换器 - ADS1253
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描述

The ADS1253 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. An effective resolution of 19 bits (1.8ppm of rms noise) is achieved for conversion rates up to 20kHz.

The ADS1253 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, two-wire synchronous serial interface for low-cost isolation.

The ADS1253 is a 4-channel converter and is offered in an SSOP-16 package.

特性

  • 24 BITS—NO MISSING CODES
  • 19 BITS EFFECTIVE RESOLUTION UP TO 20kHz DATA RATE
  • LOW NOISE: 1.8ppm
  • FOUR 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

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参数

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Part number 立即下单 Resolution (Bits) Sample rate (Max) (kSPS) Number of input channels Interface Operating temperature range (C) Package Group Approx. price (US$) Power consumption (Typ) (mW) Package size: mm2:W x L (PKG) Architecture Input type Multi-channel configuration Reference mode Features Input range (Max) (V) Input range (Min) (V) Analog voltage AVDD (Min) (V) Analog voltage AVDD (Max) (V) Digital supply (Min) (V) Digital supply (Max) (V) INL (Max) (+/-LSB) THD (Typ) (dB) Rating
ADS1253 立即下单 24     20     4     SPI     -40 to 85     SSOP | 16     8.40 | 1ku     7.5     16SSOP: 29 mm2: 6 x 4.9 (SSOP | 16)     Delta-Sigma     Differential     Multiplexed     Ext     50/60 Hz Rejection     5.25     0     4.75     5.25     4.75     5.25     251.7     -105     Catalog    
ADS1250 无样片 20     25     1     SPI     -40 to 85     SOIC | 16     10.38 | 1ku     75     16SOIC: 77 mm2: 7.5 x 10.3 (SOIC | 16)     Delta-Sigma     Differential
Single-Ended    
    Ext     PGA     4.196     0     4.75     5.25     4.75     5.25     21     -97     Catalog    
ADS1251 立即下单 24     20     1     SPI     -40 to 85     SOIC | 8     5.99 | 1ku     7.5     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)     Delta-Sigma     Differential         Ext     50/60 Hz Rejection     5.25     0     4.75     5.25     4.75     5.25     251.7     -105     Catalog    
ADS1252 立即下单 24     41     1     SPI     -40 to 85     SOIC | 8     6.45 | 1ku     40     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)     Delta-Sigma     Differential         Ext