Quad 14-bit 160MSPS ADC with JESD204B interface

03-12-2015 | Texas Instruments | Semiconductors

This post is sponsored by Texas Instruments.

The Texas Instruments (TI) ADC34J4x is a high-linearity, ultra-low power,
quad-channel, 14-bit, 50MSPS to 160MSPS, analog-to-digital converter (ADC).

The devices are designed specifically to support demanding, high input
frequency signals with large dynamic range requirements. A clock input
divider allows more flexibility for system clock architecture design while
the SYSREF input enables complete system synchronization.

The ADC34J4x family supports serial current-mode logic (CML) and JESD204B
interfaces in order to reduce the number of interface lines, thus allowing
high system integration density. The JESD204B interface is a serial
interface, where the data of each ADC are serialized and output over only
one differential pair. An internal phase-locked loop (PLL) multiplies the
incoming ADC sampling clock by 20 to derive the bit clock that is used to
serialize the 14-bit data from each channel. The ADC34J4x devices support
subclass 1 with interface speeds up to 3.2Gbps.

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