描述 Description

The ADS8329 is a low-power, 16-bit, 1-MSPS analog-to-digital converter (ADC) with a unipolar input. The device includes a 16-bit capacitor-based SAR ADC with inherent sample-and-hold. The ADS8330 is based on the same core and includes a 2-to-1 input MUX with programmable option of TAG bit output.Both the ADS8329 and ADS8330 offer a high-speed, wide voltage serial interface and are capable of chain mode operation when multiple converters are used. These converters are available in 4 × 4 QFN and 16-pin TSSOP packages, and are fully specified for operation over the industrial -40°C to +85°C temperature range.

特性 Features

? 2.7-V to 5.5-V Analog Supply, Low Power:
? 15.5 mW (1 MHz, +VA = 3 V, +VBD = 1.8 V)

? 1-MHz Sampling Rate 3 V ≤ +VA ≤ 5.5 V, 900-kHz Sampling Rate 2.7 V ≤ +VA ≤ 3 V
? Excellent DC Performance:±1.0 LSB Typ, ±1.75 LSB Max INL±0.5 LSB Typ, ±1 LSB Max DNL16-Bit NMC Over Temperature±0.5 mV Max Offset Error at 3 V±1 mV Max Offset Error at 5 V
? Excellent AC Performance at fI = 10 kHz with 93 dB SNR, 105 dB SFDR, -102 dB THD
? Built-In Conversion Clock (CCLK)
? 1.65 V to 5.5 V I/O Supply:SPI/DSP Compatible SerialSCLK up to 50 MHz
? Comprehensive Power-Down Modes:Deep Power-Down Nap Power-Down Auto Nap Power-Down
? Unipolar Input Range: 0 V to VREF
? Software Reset
? Global CONVST (Independent of CS)
? Programmable Status/Polarity EOC/INT
? 16-Pin 4 × 4 QFN and 16-Pin TSSOP Packages
? Multi-Chip Daisy Chain Mode
? Programmable TAG Bit Output
? Auto/Manual Channel Select Mode (ADS8330)
? APPLICATIONS
? Communications
? Transducer Interface
? Medical Instruments
? Magnetometers
? Industrial Process Control
? Data Acquisition Systems
? Automatic Test Equipment