HI1176(1998) 查看數據表（PDF） - Intersil

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HI1176
(Rev.:1998)

8-Bit, 20 MSPS, Flash A/D Converter

Intersil 

Pin Descriptions (Continued)

PIN

NUMBER

21

SYMBOL

VIN

HI1176

EQUIVALENT CIRCUIT

AVDD

21

22, 23

25

AVSS

VRBS

26

VREF

AVSS

AVSS

25

AVDD

26

Analog Input.

DESCRIPTION

Analog Ground.

When shorted with VRB, generates approx. +0.5V.

Clamp Reference Voltage Input.

27

CCP

AVSS

AVDD

27

Integrates the voltage for clamp control.

28, 31

29

DVSS

CLE

30

OE

AVSS

DVDD

29

Digital GND.

When CLE is low, clamp function is activated.

When CLE is high, clamp function is OFF and only

the usual A/D converter function is active.

By connecting CLE pin to DVDD via a several

hundred Ω resistance, the clamp pulse can be

tested.

CLAMP PULSE

DVSS

DVDD

When OE is low, data is valid.

When OE is high, D0 to D7 pins are high

impedance.

30

DVSS

4-8

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