TDA1534 PHILIPS 14-bit analogue to digital converter 28 pin DIL pins 1 start conversion 2 status out 3 data out 4 data strobe 5 positive supply voltage 6 negative supply voltage 1 7 oscillator in 8 oscillator in 9 negative supply voltage 2 10 | 11 |decoupling binary weighted 12 |current sources 13 | 14 | 15 | 16 | 17 | 18 reference current Iref1 19 reference current Iref2 20 reference current Iref3 21 |decoupling binary weighted 22 |current sources 23 offset in 24 signal in 25 analogue ground 26 oscillator 27 oscillator 28 digital ground