TDA8714MSLASH7 datasheet(2/24 Pages) PHILIPS

2 / 24 page

1997 Oct 29

Philips Semiconductors

Product speciﬁcation

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

TDA8714

FEATURES

• 8-bit resolution

• Sampling rate up to 80 MHz

• No missing codes guaranteed

• High signal-to-noise ratio over a large analog input

frequency range (7.7 effective bits at 4.43 MHz

full-scale input at fclk = 80 MHz)

• Overflow/underflow 3-state TTL output

• TTL compatible digital inputs

• Low-level AC clock input signal allowed

• External reference voltage regulator

• Power dissipation only 340 mW (typical)

• Low analog input capacitance, no buffer amplifier

required

• No sample-and-hold circuit required.

APPLICATIONS

High-speed analog-to-digital conversion for:

• video data digitizing

• radar pulse analysis

• transient signal analysis

• high energy physics research

•Σ∆ modulators

• medical imaging.

GENERAL DESCRIPTION

The TDA8714 is an 8-bit high-speed Analog-to-Digital

Converter (ADC) for professional video and other

applications. It converts the analog input signal into 8-bit

binary-coded digital words at a maximum sampling rate of

80 MHz. All digital inputs and outputs are TTL compatible,

although a low-level sine wave clock input signal is

allowed.

QUICK REFERENCE DATA

Note

1. Full-scale sine wave (fi = 4.43 MHz; fclk = 80 MHz).

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

VCCA

analog supply voltage

4.75

5.0

5.25

VCCD

digital supply voltage

4.75

5.0

5.25

VCCO

output stages supply voltage

4.75

5.0

5.25

ICCA

analog supply current

−

ICCD

digital supply current

−

ICCO

output stages supply current

−

INL

DC integral non-linearity

−±0.4

±0.5

LSB

DNL

DC differential non-linearity

−±0.2

±0.35

LSB

AINL

AC integral non-linearity

note 1

−±0.5

±1.0

LSB

fclk(max)

maximum clock frequency

TDA8714/7

−−

MHz

TDA8714/6

−−

MHz

TDA8714/4

−−

MHz

Ptot

total power dissipation

−

340

435

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