THS0842 Series

Dual-Channel, 8-Bit, 40-MSPS Analog-to-Digital Converter (ADC)

Catalog

Dual-Channel, 8-Bit, 40-MSPS Analog-to-Digital Converter (ADC)

Part	Configuration	Architecture	Input Type	Number of Bits	Mounting Type	Number of A/D Converters	Features	Supplier Device Package	Sampling Rate (Per Second)	Number of Inputs	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Data Interface	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Reference Type	Voltage - Supply, Analog [Max]	Voltage - Supply, Analog [Min]	Ratio - S/H:ADC
Texas Instruments THS0842IPFB	S/H-MUX-ADC	Pipelined	Differential Single Ended	8	Surface Mount	1	Simultaneous Sampling	48-TQFP (7x7)	40M	2	3.6 V	3 V	Parallel	48-TQFP	85 °C	-40 °C	External Internal	3.6 V	3 V

Catalog

Dual-Channel, 8-Bit, 40-MSPS Analog-to-Digital Converter (ADC)

Key Features

• Dual Simultaneous Sample and Hold InputsDifferential or Single-Ended Analog Inputs8-Bit Resolution 40 MSPS Sampling Analog-to-Digital Converter (ADC)Single or Dual Parallel Bus OutputLow Power Consumption: 275 mW Typ Using External ReferencesWide Analog Input Bandwidth: 600 MHz Typ3.3 V Single-Supply Operation3.3 V TTL/CMOS-Compatible Digital I/OInternal or External Bottom and Top Reference VoltagesAdjustable Reference Input RangePower-Down (Standby) Mode48-Pin Thin Quad Flat Pack (TQFP) PackageApplicationsDigital Communications (Baseband Sampling)Cable ModemsSet Top BoxesTest InstrumentsDual Simultaneous Sample and Hold InputsDifferential or Single-Ended Analog Inputs8-Bit Resolution 40 MSPS Sampling Analog-to-Digital Converter (ADC)Single or Dual Parallel Bus OutputLow Power Consumption: 275 mW Typ Using External ReferencesWide Analog Input Bandwidth: 600 MHz Typ3.3 V Single-Supply Operation3.3 V TTL/CMOS-Compatible Digital I/OInternal or External Bottom and Top Reference VoltagesAdjustable Reference Input RangePower-Down (Standby) Mode48-Pin Thin Quad Flat Pack (TQFP) PackageApplicationsDigital Communications (Baseband Sampling)Cable ModemsSet Top BoxesTest Instruments

Description

The THS0842 is a dual 8-bit 40 MSPS high-speed A/D converter. It alternately converts each analog input signal into 8-bit binary-coded digital words up to a maximum sampling rate of 40 MSPS with an 80 MHz clock. All digital inputs and outputs are 3.3 V TTL/CMOS-compatible. Thanks to an innovative single-pipeline architecture implemented in a CMOS process and the 3.3 V supply, the device consumes very little power. In order to provide maximum flexibility, both bottom and top voltage references can be set from user supplied voltages. Alternately, if no external references are available, on-chip references can be used which are also made available externally. The full-scale range is 1 Vpp, depending on the analog supply voltage. If external references are available, the internal references can be powered down independently from the rest of the chip, resulting in an even greater power saving. The device is specifically suited for the baseband sampling of wireless local loop (WLL) communication, cable modems, set top boxes (STBs), and test instruments. The THS0842 is a dual 8-bit 40 MSPS high-speed A/D converter. It alternately converts each analog input signal into 8-bit binary-coded digital words up to a maximum sampling rate of 40 MSPS with an 80 MHz clock. All digital inputs and outputs are 3.3 V TTL/CMOS-compatible. Thanks to an innovative single-pipeline architecture implemented in a CMOS process and the 3.3 V supply, the device consumes very little power. In order to provide maximum flexibility, both bottom and top voltage references can be set from user supplied voltages. Alternately, if no external references are available, on-chip references can be used which are also made available externally. The full-scale range is 1 Vpp, depending on the analog supply voltage. If external references are available, the internal references can be powered down independently from the rest of the chip, resulting in an even greater power saving. The device is specifically suited for the baseband sampling of wireless local loop (WLL) communication, cable modems, set top boxes (STBs), and test instruments.