Texas Instruments ADS4145
The ADS412x and ADS414x devices are lowersampling speed variants in the ADS41xx family of analog-to-digital converters (ADCs). These devices use innovative design techniques to achieve high dynamic performance, while consuming extremely low power at 1.8-V supply. The devices are wellsuited for multi-carrier, wide bandwidth communications applications.| Part No. | ADS4145 |
|---|---|
| Datasheet | ADS4145 Download |
| Manufacturer |  Texas Instruments |
| Description | Ultra-Low-Power ADC |
| Buy | Stock & Price |
FEATURES
●1 Ultra-Low Power With 1.8-V Single Supply: – 103-mW Total Power at 65 MSPS – 153-mW Total Power at 125 MSPS● High Dynamic Performance: – SNR: 72.2 dBFS at 170 MHz – SFDR: 81 dBc at 170 MHz
● Dynamic Power Scaling With Sample Rate
● Idle Channel SNR 74.8 dBFS (ADS414x)
● 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 up to 6 dB for SNR, SFDR Trade-Off
● DC Offset Correction
● Supports Low Input Clock Amplitude Down to 200 mVPP 2
APPLICATIONS
● Wireless Communications Infrastructure● Software-Defined Radios
● Power Amplifier Linearization
● Imaging Systems 3
DESCRIPTION
The ADS412x and ADS414x devices have fine gain options that can be used to improve SFDR performance at lower full-scale input ranges, especially at high input frequencies. They include a dc offset correction loop that can be used to cancel the ADC offset.
