The highly-rated 23-year-old has signed a three-year-deal, with a further year’s option in the club’s favour, after the two clubs agreed an undisclosed fee.
And Sean Dyche was delighted to add someone he has been a long-term admirer of to his squad.
Dyche said: "We are delighted to add Tendayi to the squad. He is someone we have had our eye on for a while and after playing against Chesterfield last weekend, his performance confirmed our thoughts and made the decision for us.
"He is definitely one who can push for a place in the team now, but also one for the future because we are confident we can improve him as a player because he has a great desire to learn."
The Clarets beat off strong competition for the Nottingham-born full-back, who started his career at Chesterfield and penned his first professional contract in 2010.
After making his debut in the same year against Burton Albion in the FA Cup, Darikwa began to establish himself as a first-team regular at the Proact Stadium.
He was an integral part of the Spireites side that won the League Two title in the 2013/14 campaign, after being converted from a right winger to a right back by former boss John Sheridan.
His blossoming talent attracted interest from a number of clubs and in the 2014/15 campaign his stock continued to rise.
He made 56 appearances in all competitions as Chesterfield reached the League One Play-Off semi-finals, where they lost out to eventual winners Preston North End.
At the end of the season awards, Darikwa picked up four gongs including the Player of the Year and Players’ Player of the Season.