ADS8331中文资料2.7V 至 5.5V 16 位 500kSPS 低功耗串行模数转换器 (ADC)数据手册TI规格书

描述 Description

The ADS8331 is a low-power, 16-bit, 500-k samples-per-second (SPS) analog-to-digital converter (ADC) with a unipolar, 4-to-1 multiplexer (mux) input. The device includes a 16-bit capacitor-based successive approximation register (SAR) ADC with inherent sample and hold.The ADS8332 is based on the same core and includes a unipolar 8-to-1 input mux. Both devices offer a high-speed, wide-voltage serial interface and are capable of daisy-chain operation when multiple converters are used.These converters are available in 24-pin, 4 × 4 QFN and 24-pin TSSOP packages and are fully specified for operation over the industrial –40°C to 85°C temperature range.

特性 Features

• Low-Power, Flexible Supply Range:
• 2.7-V to 5.5-V Analog Supply
• 8.7 mW (250 kSPS in Auto-NAP Mode, VA = 2.7 V, VBD = 1.65 V)
• 14.2 mW (500 kSPS, VA = 2.7 V, VBD = 1.65 V)

• Up to 500-kSPS Sampling Rate
• Excellent DC Performance:
• ±1.2 LSB Typical, ±2 LSB Maximum INL at 2.7 V
• ±0.6 LSB Typical, –1/1.5 LSB Maximum DNL at 2.7 V
• 16-Bit NMC Over Temperature

• Excellent AC Performance at 5 V, fIN = 1 kHz:
• 91.5-dB SNR, 101-dB SFDR, –100-dB THD

• Flexible Analog Input Arrangement:
• On-Chip 4-/8-Channel Mux With Breakout
• Auto/Manual Channel Select and Trigger

• Other Hardware Features:
• On-Chip Conversion Clock (CCLK)
• Software/Hardware Reset
• Programmable Status/Polarity EOC/INT
• Daisy-Chain Mode
• Global CONVST (Independent of CS)
• Deep, Nap, and Auto-NAP Powerdown Modes
• SPI™/DSP Compatible Serial Interface
• Separate I/O Supply: 1.65 V to VA
• SCLK up to 40 MHz (VA = VBD = 5 V)

• 24-Pin 4-mm × 4-mm VQFN and 24-Pin TSSOP Packages