TDA8716 datasheet(9/21 Pages) PHILIPS

9 / 21 page

1996 Aug 26

Philips Semiconductors

Product speciﬁcation

8-bit high-speed analog-to-digital converter

TDA8716

Notes

1. Voltage offset BOTTOM (VOB) is the difference between the analog input which produces data outputs equal to 00

and the reference voltage BOTTOM (VRB), at Tamb =25 °C. Voltage offset TOP (VOT) is the difference between

reference voltage TOP (VRT) and the analog input which produces data outputs equal to FF, at Tamb =25 °C.

2. The analog input is not internally biased. It should be externally biased between VRB and VRT levels.

3. The TDA8716 can only withstand one or two 10K or 100K ECL loads in order to work-out timings at the maximum

sampling frequency. It is therefore recommended to minimize the printed-circuit board load by implementing the load

device as close as possible to the TDA8716.

4. Full-scale sinewave; fi = 4.43 MHz; fCLK, fCLK = 100 MHz.

5. Effective bits are obtained via a Fast Fourier Transformer (FFT) treatment taking 4 K acquisition points per period.

The calculation takes into account all harmonics and noise up to half of the clock frequency (NYQUIST frequency).

Conversion to SNR: SNR = EB (dB)

× 6.02 + 1.76.

Fig.4 Average effect of air flow on thermal resistance.

handbook, full pagewidth

1000

–60

200

400

600

800

MEA540

–20

–40

–10

–30

–50

percent

change

(R th j–a)

air flow (LFPM)

SOL

TDA8716 Fiches technique(PDF) 9 Page - NXP Semiconductors