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Part Number: ADS5121
Description: The ADS5121 is a low-power, 8-channel, 10-bit, 40MSPS CMOS Analog-to-Digital Converter (ADC) that oper...
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ADS5121
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DataSheet
General Description
ADS5121 General Description
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.
ADS5121 Maximum Ratings
Supply Voltage: AVDD to AGND, DVDD to DGND .......................... 0.3V to +2.2V
Supply Voltage: DRVDD to DRGND .............................................. 0.3V to +4.0V
Supply Voltage: AGND to DGND .................................................. 0.3V to +0.3V
Supply Voltage: AVDD to DVDD ................................................... 2.2V to +2.2V
Reference Voltage Input Range REFT, REFB to AGND ....... 0.3V to AVDD + 0.3V
Analog Input Voltage Range AIN to AGND ........................ 0.3V to AVDD + 0.3V
Clock Input CLK to DGND .................................................. 0.3V to AVDD + 0.3V
Digital Input to DGND ....................................................... 0.3V to DVDD + 0.3V
Digital Outputs to DRGND ............................................... 0.3V to DRVDD + 0.3V
Operating Temperature Range (TJ) ........................................... 0°C to +105°C
Storage Temperature Range (TSTG) .........................................65°C + 150°C
Supply Voltage: DRVDD to DRGND .............................................. 0.3V to +4.0V
Supply Voltage: AGND to DGND .................................................. 0.3V to +0.3V
Supply Voltage: AVDD to DVDD ................................................... 2.2V to +2.2V
Reference Voltage Input Range REFT, REFB to AGND ....... 0.3V to AVDD + 0.3V
Analog Input Voltage Range AIN to AGND ........................ 0.3V to AVDD + 0.3V
Clock Input CLK to DGND .................................................. 0.3V to AVDD + 0.3V
Digital Input to DGND ....................................................... 0.3V to DVDD + 0.3V
Digital Outputs to DRGND ............................................... 0.3V to DRVDD + 0.3V
Operating Temperature Range (TJ) ........................................... 0°C to +105°C
Storage Temperature Range (TSTG) .........................................65°C + 150°C
ADS5121 Features
·8 DIFFERENTIAL ANALOG INPUTS
·1VPP DIFFERENTIAL INPUT RANGE
·INT/EXT VOLTAGE REFERENCE
·ANALOG/DIGITAL SUPPLY: 1.8V
·DIGITAL I/O SUPPLY: 1.8V/3.3V
·DIFFERENTIAL NONLINEARITY: ±0.4LSB
·INTEGRAL NONLINEARITY: ±0.6LSB
·SIGNAL-TO-NOISE: 60dB at fIN = 20MHz
·POWER DISSIPATION: 500mW
·INDIVIDUAL CHANNEL POWER-DOWN
·257-LEAD, 0.8 BALL PITCH, PLASTIC
·MicroSTAR BGA™ (16mm • 16mm)
·1VPP DIFFERENTIAL INPUT RANGE
·INT/EXT VOLTAGE REFERENCE
·ANALOG/DIGITAL SUPPLY: 1.8V
·DIGITAL I/O SUPPLY: 1.8V/3.3V
·DIFFERENTIAL NONLINEARITY: ±0.4LSB
·INTEGRAL NONLINEARITY: ±0.6LSB
·SIGNAL-TO-NOISE: 60dB at fIN = 20MHz
·POWER DISSIPATION: 500mW
·INDIVIDUAL CHANNEL POWER-DOWN
·257-LEAD, 0.8 BALL PITCH, PLASTIC
·MicroSTAR BGA™ (16mm • 16mm)
ADS5121 Typical Application
·PORTABLE ULTRASOUND
·PORTABLE INSTRUMENTATION
·PORTABLE INSTRUMENTATION
ADS5121 Connection Diagram
ADS5121
PDF/DataSheet Download
- Datasheet: ADS5121
- File Size: 379413 KB
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- Click here to Download
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