ADS4249IRGCT

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Texas Instruments

DUAL-CHANNEL, 14-BIT, 250-MSPS ANALOG-TO-DIGITAL CONVERTER (ADC)

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ADS4249IRGCT

Active

Texas Instruments

DUAL-CHANNEL, 14-BIT, 250-MSPS ANALOG-TO-DIGITAL CONVERTER (ADC)

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Description Specifications Series Pricing CAD Documents

Description

General part information

ADS4249 Series

The ADS4249 is a member of the ADS42xx ultralow-power family of dual-channel, 12-bit and 14-bit analog-to-digital converters (ADCs). Innovative design techniques are used to achieve high dynamic performance, while consuming extremely low power with a 1.8-V supply. This topology makes the ADS4249 well-suited for multi-carrier, wide-bandwidth communications applications.

The ADS4249 has gain options that can be used to improve SFDR performance at lower full-scale input ranges. This device also includes a dc offset correction loop that can be used to cancel the ADC offset. Both DDR LVDS and parallel CMOS digital output interfaces are available in a compact QFN-64 PowerPAD package.

The device includes internal references while the traditional reference pins and associated decoupling capacitors have been eliminated. The ADS4249 is specified over the industrial temperature range (–40°C to 85°C).

Technical Specifications

Parameters and characteristics for this part

Specification	ADS4249IRGCT

Architecture	Pipelined
Configuration	S/H-ADC
Data Interface	LVDS - Parallel, Parallel
Features	Simultaneous Sampling
Input Type	Differential
Mounting Type	Surface Mount
Number of A/D Converters	2 count
Number of Bits	14 bits
Number of Inputs	2
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Package / Case	64-VFQFN Exposed Pad
Package Length	9 mm
Package Name	64-VQFN
Package Width	9 mm
Ratio - ADC	1
Ratio - S/H	1
Reference Type	Internal
Sampling Rate (Per Second)	250 MHz
Voltage - Supply, Analog (Max)	1.9 V
Voltage - Supply, Analog (Min)	1.7 V
Voltage - Supply, Digital (Max)	1.9 V
Voltage - Supply, Digital (Min)	1.7 V

ADS4249 Series

Dual-Channel, 14-Bit, 250-MSPS Analog-to-Digital Converter (ADC)

Part	Supplied Contents	Power (Typ)	Data Interface	Sampling Rate (Per Second)	Number of Bits	Utilized IC / Part	Number of A/D Converters	Contents	Input Voltage (Min)	Input Voltage (Max)	Voltage - Supply, Analog (Max)	Voltage - Supply, Analog (Min)	Input Type	Features	Ratio - ADC	Ratio - S/H	Mounting Type	Voltage - Supply, Digital (Min)	Voltage - Supply, Digital (Max)	Reference Type	Operating Temperature (Min)	Operating Temperature (Max)	Number of Inputs	Architecture	Configuration	Package / Case	Package Width	Package Name	Package Length
Texas Instruments ADS4249EVM	Board(s)	560 mW	SPI USB	250 MHz	14 bits	ADS4249	2 count	Board	1 V	2 V
Texas Instruments ADS4249IRGCR			LVDS - Parallel Parallel	250 MHz	14 bits		2 count				1.9 V	1.7 V	Differential	Simultaneous Sampling	1	1	Surface Mount	1.7 V	1.9 V	Internal	-40 °C	85 °C	2	Pipelined	S/H-ADC	64-VFQFN Exposed Pad	9 mm	64-VQFN	9 mm
Texas Instruments ADS4249IRGCT			LVDS - Parallel Parallel	250 MHz	14 bits		2 count				1.9 V	1.7 V	Differential	Simultaneous Sampling	1	1	Surface Mount	1.7 V	1.9 V	Internal	-40 °C	85 °C	2	Pipelined	S/H-ADC	64-VFQFN Exposed Pad	9 mm	64-VQFN	9 mm