SPT1175ACS Datasheet

IC型號(hào)：
SPT1175ACS
PDF描述：
8-BIT, 20 MSPS CMOS A/D CONVERTER
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PDF頁數(shù)：
8頁
芯片廠家：
ETC

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SPT1175

8-BIT, 20 MSPS CMOS A/D CONVERTER

FEATURES

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20 MSPS Maximum Conversion Rate

Internal Sample-and-Hold Function

90 mW Power Dissipation

Internal Voltage Reference

Single +5.0 V Power Supply

Three-State TTL-Outputs

CMOS Compatible Clock

APPLICATIONS

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Video Digitizing

Image Scanners

Personal Computer Video

Medical Ultrasound

Multimedia

Digital Television

GENERAL DESCRIPTION

The SPT1175 is a CMOS two-step A/D converter capable of

digitizing full scale analog input signals into 8-bit digital words

at a sample rate of 20 MSPS.

For most applications, no external sample-and-hold or

video driving amplifiers are required due to the device's

narrow aperture time, wide bandwidth, and low input ca-

pacitance.

The SPT1175 operates from a single +5.0 V power supply

and has an internal voltage reference which eliminates the

need for external reference circuitry. All digital inputs are

CMOS compatible and the tri-state outputs are TTL-compat-

ible. The SPT1175 is ideal for most video and image pro-

cessing applications that require low power dissipation and

low cost. The SPT1175 is available in 24-lead plastic SOIC,

plastic DIP, and PLCC packages over the commercial tem-

perature range (0 to +70

擄C).

It is also available in die form.

BLOCK DIAGRAM

RBS

DGND

Coarse

Sampling

Amplifier

Latch

Encoder

D脴 (LSB)

Error

Correction

Circuit

Data

Latches

and

3-State

Output

Buffer

VIN

Reference Matrix

Fine

Sampling

Amplifier

Fine

Sampling

Amplifier

D7 (MSB)

Encoder

Analog

Mux

Latch

Timing

Generator

CLK

RTS

AGND AV

AGND

Signal Processing Technologies, Inc.

4755 Forge Road, Colorado Springs, Colorado 80907, USA

Phone: (719) 528-2300 FAX: (719) 528-2370

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