SPT7730 Ver la hoja de datos (PDF) - Signal Processing Technologies

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SPT7730

8-BIT, 3.0 MSPS, SERIAL OUTPUT A/D CONVERTER

Signal Processing Technologies 

SPT7730

8-BIT, 3.0 MSPS, SERIAL OUTPUT A/D CONVERTER

FEATURES

• 8-Bit, 1 kHz to 3.0 MSPS Analog-to-Digital Converter

• Monolithic CMOS

• Serial Output

• Internal Sample-and-Hold

• Analog Input Range: 0 to 2 V Nominal; 3.3 V Max

• Power Dissipation (Excluding Reference Ladder)

45 mW at +5 V

16 mW at +3 V

• Single Power Supply: +3 V to +5 V Range

• High ESD Protection: 3,000 V Minimum

APPLICATIONS

• Handheld and Desktop Scanners

• DSP Interface Applications

• Portable Digital Radios

• Portable and Handheld Applications

• Automotive Applications

• Remote Sensing

GENERAL DESCRIPTION

The SPT 8-bit, 3.0 MSPS, serial analog-to-digital converter

delivers excellent high speed conversion performance with

low cost and low power. The serial port protocol is compatible

with the serial peripheral interface (SPI) or MICROWIRE™

industry standard, high-speed synchronous MPU interfaces.

The large input bandwidth and fast transient response time

allow for CCD applications operating up to 3.0 MSPS.

The device can operate with a power supply range from +3 V

to +5 V with very low power dissipation. The small package

size makes this part excellent for handheld applications

where board space is a premium. The SPT7730 is available

in an 8-lead SOIC package over the commercial tempera-

ture range. Contact the factory for availability of die and

industrial temperature range versions.

BLOCK DIAGRAM

Ground

VDD

Analog Input

Track-and-Hold

SAR

8-Bit

A/D

Serial

Output

Logic

Data Out

Clock

Start Convert

Timing And Control

VREF+

VREF-

Signal Processing Technologies, Inc.

4755 Forge Road, Colorado Springs, Colorado 80907, USA

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

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