ADC Single SAR 1Msps 14-bit Serial 16-Pin TSSOP Tube

The ADS7279 is a low-power, 14-bit, 1MSPS analog-to-digital converter (ADC) with a unipolar input. The device includes a 14-bit, capacitor-based successive approximation register (SAR) ADC with inherent sample-and-hold.The ADS7280 is based on the same core and includes a 2-to-1 input MUX with a programmable TAG bit output option. Both the ADS7279 and ADS7280 offer a high-speed, wide voltage serial interface, and are capable of daisy-chain mode operation when multiple converters are used.These converters are available in 4 × 4 QFN and TSSOP-16 packages, and are fully specified for operation over the industrial -40°C to +85°C temperature range.

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:

• ±0.4LSB Typ, ±1.0LSB Max INL
• ±0.4LSB Typ, ±1.0LSB Max DNL
• ±0.8mV Max Offset Error at 3V
• ±1.25mV Max Offset Error at 5V

Excellent AC Performance at f_i = 10kHz with 85.9dB SNR, 105.3dB SFDR, -100.1dB THD

Built-In Conversion Clock (CCLK)

1.65V to 5.5VI/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 toV_REF

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 (ADS7280)

APPLICATIONS

• Communications
• Transducer Interface
• Medical Instruments
• Magnetometers
• Industrial Process Control
• Data Acquisition Systems
• Automatic Test Equipment