SPT7864

10-BIT, 40 MSPS A/D CONVERTER

TECHNICAL DATA

NOVEMBER 20, 2001

APPLICATIONS

• Video imaging

• Medical imaging

• Radar receivers

• IR imaging

• Digital communications

FEATURES

• 40 MSPS maximum sample rate

• Differential input 2.5 V common mode

• Internal or external voltage reference

• Common-mode voltage reference output

• +3 V / +5 V digital output logic compatibility

• +5 V analog power supply

• Sleep mode power dissipation: 55 mW

GENERAL DESCRIPTION

The SPT7864 is a 10-bit, 40 MSPS analog-to-digital con-

verter with low power dissipation at only 395 mW typical at

40 MSPS with a power supply of +5.0 V. The digital outputs

are +3 V or +5 V, and are user selectable. The SPT7864

has incorporated proprietary circuit design and CMOS

processing technologies to achieve its advanced perfor-

mance. Inputs and outputs are TTL/CMOS compatible to

interface with TTL/CMOS logic systems. Output data for-

mat is offset binary.

The SPT7864 is available in a 28-lead SSOP package

over the commercial temperature range.

BLOCK DIAGRAM

Bias

Cell

10-BIT

40 MSPS

ADC

THA

Data

Output

Latches

& Buffers

10

10

Bandgap

Reference

2

CLK, CLK

Sleep

1

OR

EXT/INT

D0–D9