TDA8792M datasheet(2/20 Pages) PHILIPS

2 / 20 page

1996 Feb 21

Philips Semiconductors

Product speciﬁcation

3.3 V, 25 MHz 8-bit

analog-to-digital converter (ADC)

TDA8792

FEATURES

• 8-bit resolution

• Sampling rate up to 25 MHz

• 30 MHz input signal bandwidth (full scale)

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

frequency range (7.3 effective bits at 4.43 MHz

full-scale input at fclk = 25 MHz)

• CMOS compatible digital inputs

• External reference voltage regulator

• Power dissipation only 53 mW (typical)

• Standby mode (only 1.2 mW typical)

• Low analog input capacitance, no buffer amplifier

required

• No sample-and-hold circuit required.

APPLICATIONS

Analog-to-digital conversion for:

• General purpose

• Hand-held equipment

• Mobile telecommunication

• Instrumentation

• Video.

GENERAL DESCRIPTION

The TDA8792 is a 8-bit analog-to-digital converter (ADC)

for low-voltage, portable applications. It operates at 3.3 V

and converts the analog input signal into 8-bit

binary-coded digital words at a maximum sampling rate of

25 MHz. The output data is valid after a delay of 6 clock

cycles.

QUICK REFERENCE DATA

ORDERING INFORMATION

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

VDDA

analog supply voltage

2.85

3.3

3.6

VDDD

digital supply voltage

2.70

3.3

3.6

VDDO

output stages supply voltage

2.5

3.3

3.6

IDDA

analog supply current

−

IDDD

digital supply current

−

36mA

IDDO

output stages supply current

fclk = 25 MHz; CL = 15 pF;

ramp input

−

12mA

INL

integral non-linearity

fclk = 25 MHz; ramp input

−±0.4

±0.8

LSB

DNL

differential non-linearity

fclk = 25 MHz; ramp input

−±0.3

±0.75

LSB

fclk(max)

maximum clock frequency

−−

MHz

Ptot

total power dissipation

fclk = 25 MHz; CL = 15 pF;

ramp input

−

100

TYPE

NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

TDA8792M

SSOP24

plastic shrink small outline package; 24 leads; body width 5.3 mm

SOT340-1

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