ISL2671286

12-Bit, 20kSPS SAR ADC

Product Status: 量産中

OVERVIEW

The ISL2671286 is a sampling SAR-type ADC which features excellent linearity over supply and temperature variations, and provides a drop-in compatible alternative to all ADS1286 performance grades. The robust high impedance input minimizes errors due to leakage currents, and specified measurement accuracy is maintained with input signals up to the supply rails.

The reference accepts inputs between 1.25V to 5.0V, providing design flexibility in a wide variety of applications. The ISL2671286 also features up to 8kV Human Body Model ESD survivability.

The serial digital interface is SPI compatible and is easily interfaced to all popular FPGAs and microcontrollers. Operating from a 5V supply, power dissipation is 1.4mW at a sampling rate of 20kSPS and just 15µW between conversions utilizing the
Auto Power-Down mode. These features make the ISL2671286 an excellent solution for remote industrial sensors and battery-powered instruments.

The ISL2671286 is available in an 8 Ld SOIC package and is specified for operation over the industrial temperature range of –40°C to +85°C.

KEY FEATURES

  • Drop-In Compatible with ADS1286 (All Performance Grades)
  • Simple SPI-compatible Serial Digital Interface
  • Guaranteed No Missing Codes
  • 20kHz Sampling Rate
  • +4.50V to +5.25V Supply
  • Low 280µA Operating Current (20kSPS)
  • Power-down Current between Conversions: 3µA
  • Excellent Differential Non-Linearity (0.75LSB Max)
  • Low THD: -83dB (Typ)
  • Pb-Free (RoHS Compliant)
  • Available in SOIC Package

PARAMETRICS

Parameters
ISL2671286
Basic Information
Production Status
量産中
チャネル当たりのデバイス数
1
分解能ビット
12
最大変換レート (kSPS)
20
積分非直線性LSB
1
微分非直線性LSB
0.75
SINAD (dbFS)
72
SFDR (dB)
-83 dB
消費電力 (mW)
1.4
最小アナログ電源電圧 (V)
4.5
最大アナログ電源電圧 (V)
5.25
認定レベル
Standard
CANサンプル
YES
温度範囲
-40 to +85

ブロック図

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