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ADS41B49

Texas Instruments
Part Number ADS41B49
Manufacturer Texas Instruments
Description Ultralow-Power ADC
Published May 12, 2020
Detailed Description Product Folder Sample & Buy Technical Documents Tools & Software Support & Community ADS41B29, ADS41B49 SBAS486F – ...
Datasheet PDF File ADS41B49 PDF File

ADS41B49
ADS41B49


Overview
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community ADS41B29, ADS41B49 SBAS486F – NOVEMBER 2009 – REVISED FEBRUARY 2016 ADS41Bx9 14- and 12-Bit, 250-MSPS, Ultralow-Power ADCs with Analog Buffers 1 Features •1 ADS41B49: 14-Bit, 250 MSPS ADS41B29: 12-Bit, 250 MSPS • Integrated High-Impedance Analog Input Buffer: – Input Capacitance: 2 pF – 200-MHz Input Resistance: 3 kΩ • Maximum Sample Rate: 250 MSPS • Ultralow Power: – 1.
8-V Analog Power: 180 mW – 3.
3-V Buffer Power: 96 mW – I/O Power: 135 mW (DDR LVDS) • High Dynamic Performance: – SNR: 69 dBFS at 170 MHz – SFDR: 82.
5 dBc at 170 MHz • Output Interface: – Double Data Rate (DDR) LVDS with Programmable Swing and Strength: – Standard Swing: 350 mV – Low Swing: 200 mV – Default Strength: 100-Ω Termination – 2x Strength: 50-Ω Termination – 1.
8-V Parallel CMOS Interface Also Supported • Programmable Gain for SNR, SFDR Trade-Off • DC Offset Correction • Supports Low Input Clock Amplitude • Package: VQFN-48 (7 mm × 7 mm) 2 Applications • Power Amplifier Linearization • Software Defined Radio • Wireless Communications Infrastructure 3 Description The ADS41Bx9 are members of the ultralow-power ADS4xxx analog-to-digital converter (ADC) family, featuring integrated analog input buffers.
These devices use innovative design techniques to achieve high dynamic performance, and consume extremely low power.
The analog input pins have buffers, with benefits of constant performance and input impedance across a wide frequency range.
The devices are well-suited for multi-carrier, wide bandwidth communications applications such as PA linearization.
RESET SCLK SEN SDATA DFS The ADS41Bx9 have features such as digital gain and offset correction.
The gain option can be used to improve SFDR performance at lower full-scale input ranges, especially at high input frequencies.
The integrated dc offset correction loop can be used to estimate and cancel the ADC offset.
At lower sampling rates, the ADC automat...


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