SPT7830

10-BIT, 2.5 MSPS, SERIAL OUTPUT A/D CONVERTER

10-Bit

A/D

Analog Input

VREF+

Serial

Output

Logic

Ground

VDD

SAR

Clock

Data Out

Start Convert

Track-and-Hold

VREF-

Timing And Control

BLOCK DIAGRAM

FEATURES

• 10-Bit, 1 kHz to 2.5 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 +3.0 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 SPT7830 10-bit, 2.5 MSPS, serial analog-to-digital

converter delivers excellent high speed conversion perfor-

mance 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

2.5 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 hand-held appli-

cations where board space is at a premium. The SPT7830 is

available in an 8-lead SOIC package over the commercial

and industrial temperature ranges. Contact the factory for

availability of die.