TDA8785H datasheet(10/24 Pages) PHILIPS

номер детали	TDA8785H

подробное описание детали	8-bit high-speed analog-to-digital converter with gain and offset controls

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производитель	PHILIPS [NXP Semiconductors]

домашняя страница	http://www.nxp.com

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10 / 24 page

1997 Dec 18

10

Philips Semiconductors

Product speciﬁcation

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

with gain and offset controls

TDA8785

Digital inputs (pins CLKDAC, CLKADC and DA7 to DA0)

VIL

LOW-level input voltage

0

−

0.8

V

VIH

HIGH-level input voltage

2.0

−

VCCD V

IIL

LOW-level input current

VIL = 0.4 V

−400

−−

µA

IIH

HIGH-level input current

VIH = 2.7 V

−−

100

µA

Zi

input impedance

fclk = 10 MHz

−

4

−

k

Ω

Ci

input capacitance

fclk = 10 MHz

−

4.5

−

pF

ADC output format (pin OF); see Table 2

VIL

LOW-level input voltage

0

−

0.2

V

VIH

HIGH-level input voltage

2.6

−

VCCD V

Vi(Z)

input voltage in high impedance

state

−

1.20

−

V

IIL

LOW-level input current

VIL = 0.4 V

−370

−130

−µA

IIH

HIGH-level input current

Vclk = 2.7 V

−

300

450

µA

ADC digital outputs

VOL

LOW-level output voltage

IOL = 2 mA

0

−

0.6

V

VOH

HIGH-level output voltage

IOH = −0.4 mA

2.4

−

VCCO V

ADC and DAC switching; see Fig.4

fclk(max)

maximum clock frequency

note 2

30

−−

MHz

tCPH

clock pulse width HIGH

12

−−

ns

tCPL

clock pulse width LOW

12

−−

ns

Analog processing; note 3

INL

integral non-linearity

ramp input (full-scale);

0 to 20 dB gain

−±0.7

±1.8

LSB

DNL

differential non-linearity

ramp input (full-scale);

0 to 20 dB gain

±0.2

±0.7

LSB

S/N

signal-to-noise ratio

(without harmonics)

fi = 2 MHz

0 dB gain

−

47

−

dB

10 dB gain

−

45

−

dB

20 dB gain

−

43

−

dB

B

bandwidth

−3dB

−

100

−

MHz

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX. UNIT

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