ADS5121 Datasheet | Texas Instruments

FEATURES DESCRIPTION q 8 DIFFERENTIAL ANALOG INPUTS q 1VPP DIFFERENTIAL INPUT RANGE q INT/EXT VOLTAGE REFERENCE q ANALOG/DIGITAL SUPPLY: 1.8V q DIGITAL I/O SUPPLY: 1.8V/3.3V q DIFFERENTIAL NONLINEARITY: ±0.4LSB q INTEGRAL NONLINEARITY: ±0.6LSB q SIGNAL-TO-NOISE: 60d B at f IN = 20MHz q POWER DISSIPATION: 500m W q INDIVIDUAL CHANNEL POWER-DOWN q 257-LEAD, 0.8 BALL PITCH, PLASTIC Micro STAR BGA™ (16mm - 16mm) APPLICATIONS The ADS5121 is a low-power, 8-channel, 10-bit, 40MSPS CMOS Analog-to-Digital Converter (ADC) that operates from a single 1.8V supply, while offering 1.8V and 3.3V digital I/O flexibility. A single-ended input clock is used for simultaneous sampling of up to eight analog differential input channels. The flexible duty cycle adjust circuit (DCASEL) allows the use of a non-50% clock duty cycle. Individual standby pins allow users the ability to power-down any number of ADCs. The internal reference can be bypassed to use an external reference to suit the accuracy and temperature drift requirements of the application. A 10-bit parallel bus on eight channels is provided with 3-state outputs. The speed, resolution, and low power of the ADS5121 make it ideal for applications requiring high-density signal processing in low-power environments. The ADS5121 is characterized for operation from - 40°C to +85°C. q PORTABLE ULTRASOUND q PORTABLE INSTRUMENTATION AVDD CLK AINA+ AINA- STBY 10-Bit ADC DRVDD DVDD 3-State Output Buffers D[9:0]A AINH- AINH+ 10-Bit ADC 3-State Output Buffers D[9:0]H Internal IREFR Reference Circuit DCASEL AGND BG PDREF REFT REFB CML DRVGND DGND Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. Micro STAR BGA is a trademark of Texas Instruments. All other trademarks are the property of their respective owners. PRODUCTION DATA information is...