ADS7230IRSAT
低功耗， 12位， 1MHz的，单/双单极性输入，模拟 - 数字转换器，串行接口 LOW-POWER, 12-BIT, 1MHz, SINGLE/DUAL UNIPOLAR INPUT, ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL INTERFACE
DESCRIPON
The ADS7229 is a low-power, 12-bit, 1MSPS analog-to-digital converter ADC with a unipolar input. The device includes a 12-bit capacitor-based successive approximation register SAR ADC with inherent sample-and-hold.
The ADS7230 is based on the same core and includes a 2-to-1 input MUX with a programmable TAG bit output option. Both the ADS7229 and ADS7230 offer a high-speed, wide voltage serial interface and are capable of daisy-chain mode operation when multiple converters are used.
FEATURES
• 2.7V to 5.5V Analog Supply, Low Power:
– 13.7mW 1MHz, +VA = 3V, +VBD = 1.8V
• 1MHz Sampling Rate 3V ≤ +VA ≤ 5.5V,
900kHz Sampling Rate 2.7V ≤ +VA ≤ 3V
• Excellent DC Performance:
– ±0.15LSB Typ, ±0.5LSB Max INL
– ±0.12LSB Typ, ±0.5LSB Max DNL
– ±0.8mV Max Offset Error at 3V
– ±1.25mV Max Offset Error at 5V
• Excellent AC Performance at fI = 10kHz with 73.9dB SNR, 93.4dB SFDR, –88.5dB THD
• Built-In Conversion Clock CCLK
• 1.65V to 5.5V I/O Supply:
– SPI™/DSP-Compatible Serial Interface
– SCLK up to 50MHz
• Comprehensive Power-Down Modes:
– Deep Power-Down
– Nap Power-Down
– Auto Nap Power-Down
• Unipolar Input Range: 0V to VREF
• Software Reset
• Global CONVST Independent of CS
• Programmable Status/Polarity EOC/INT
• 4 × 4 QFN-16 and TSSOP-16 Packages
• Multi-Chip Daisy-Chain Mode
• Programmable TAG Bit Output
• Auto/Manual Channel Select Mode ADS7230
APPLICATIONS
• Communications
• Transducer Interface
• Medical Instruments
• Magnetometers
• Industrial Process Control
• Data Acquisition Systems
• Automatic Test Equipment
