ADS8284 Series

18 bit, 1 MSPS, 4 channel, Pseudo bipolar, differential ADC with onboard ADC driver OPA

Catalog

18 bit, 1 MSPS, 4 channel, Pseudo bipolar, differential ADC with onboard ADC driver OPA

Part	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Ratio - S/H:ADC	Sampling Rate (Per Second)	Supplier Device Package	Data Interface	Voltage - Supply, Analog	Input Type	Operating Temperature [Max]	Operating Temperature [Min]	Architecture	Package / Case	Reference Type	Mounting Type	Configuration	Number of Inputs	Number of A/D Converters
Texas Instruments ADS8284IBRGCT	3.3 V	2.7 V	1:1	1 M	64-VQFN (9x9)	Parallel	5 V	Pseudo-Differential	85 °C	-40 °C	SAR	64-VFQFN Exposed Pad	External Internal	Surface Mount	MUX-S/H-ADC	4	1
Texas Instruments ADS8284IBRGCR	3.3 V	2.7 V	1:1	1 M	64-VQFN (9x9)	Parallel	5 V	Pseudo-Differential	85 °C	-40 °C	SAR	64-VFQFN Exposed Pad	External Internal	Surface Mount	MUX-S/H-ADC	4	1

Catalog

18 bit, 1 MSPS, 4 channel, Pseudo bipolar, differential ADC with onboard ADC driver OPA

Key Features

• 1.0-MHz Sample Rate, Zero Latency at Full Speed18-Bit ResolutionSupports Pseudo-Bipolar Differential Input Range:-4 V to +4 V with 2-V Common-ModeBuilt-In Four Channel, Differential Ended Multiplexer;with Channel Count Selection and Auto/Manual ModeOn-Board Differential ADC Driver (OPA)Buffered Reference Output to Level Shift Bipolar±4-V Input with External Resistance DividerReference/2 Output to Set Common-Mode for ExternalSignal Conditioner18-/16-/8-Bit Parallel InterfaceSNR: 98.4dB Typ at 2-kHz I/PTHD: –119dB Typ at 2-kHz I/PPower Dissipation: 331.25 mW at 1 MSPS IncludingADC DriverInternal ReferenceInternal Reference Buffer64-Pin QFN Package1.0-MHz Sample Rate, Zero Latency at Full Speed18-Bit ResolutionSupports Pseudo-Bipolar Differential Input Range:-4 V to +4 V with 2-V Common-ModeBuilt-In Four Channel, Differential Ended Multiplexer;with Channel Count Selection and Auto/Manual ModeOn-Board Differential ADC Driver (OPA)Buffered Reference Output to Level Shift Bipolar±4-V Input with External Resistance DividerReference/2 Output to Set Common-Mode for ExternalSignal Conditioner18-/16-/8-Bit Parallel InterfaceSNR: 98.4dB Typ at 2-kHz I/PTHD: –119dB Typ at 2-kHz I/PPower Dissipation: 331.25 mW at 1 MSPS IncludingADC DriverInternal ReferenceInternal Reference Buffer64-Pin QFN Package

Description

The ADS8284 is a high-performance analog system-on-chip (SoC) device with an 18-bit, 1-MSPS A/D converter, 4-V internal reference, an on-chip ADC driver (OPA), and a 4-channel differential multiplexer. The channel count of the multiplexer and auto/manual scan modes of the device are user selectable. The ADC driver is designed to leverage the very high noise performance of the differential ADC at optimum power usage levels. The ADS8284 outputs a buffered reference signal for level shifting of a ±4-V bipolar signal with an external resistance divider. A Vref/2 output signal is available to set the common-mode of a signal conditioning circuit. The device also includes an 18-/16-/8-bit parallel interface. The ADS8284 is available in a 9 mm × 9 mm, 64-pin QFN package and is characterized from -40°C to 85°C. The ADS8284 is a high-performance analog system-on-chip (SoC) device with an 18-bit, 1-MSPS A/D converter, 4-V internal reference, an on-chip ADC driver (OPA), and a 4-channel differential multiplexer. The channel count of the multiplexer and auto/manual scan modes of the device are user selectable. The ADC driver is designed to leverage the very high noise performance of the differential ADC at optimum power usage levels. The ADS8284 outputs a buffered reference signal for level shifting of a ±4-V bipolar signal with an external resistance divider. A Vref/2 output signal is available to set the common-mode of a signal conditioning circuit. The device also includes an 18-/16-/8-bit parallel interface. The ADS8284 is available in a 9 mm × 9 mm, 64-pin QFN package and is characterized from -40°C to 85°C.