ADC088S022

8-Channel, 50 kSPS to 200 kSPS, 8-Bit A/D Converter

General Description

The ADC088S022 is a low-power, eight-channel CMOS 8-bit

analog-to-digital converter specified for conversion through-

put rates of 50 kSPS to 200 kSPS. The converter is based on

a successive-approximation register architecture with an in-

ternal track-and-hold circuit. It can be configured to accept

up to eight input signals at inputs IN0 through IN7.

The output serial data is straight binary and is compatible

The ADC088S022 may be operated with independent ana-

log and digital supplies. The analog supply (V

from +2.7V to +5.25V, and the digital supply (V

from +2.7V to V

+5V supply is 0.9 mW and 5.5 mW, respectively. The power-

down feature reduces the power consumption to 0.03 µW

using a +3V supply and 0.15 µW using a +5V supply.

The ADC088S022 is packaged in a 16-lead TSSOP pack-

age. Operation over the extended industrial temperature

range of −40˚C to +105˚C is guaranteed.

Features

n

Eight input channels

n

Variable power management

n

Independent analog and digital supplies

n

SPI/QSPI/MICROWIRE/DSP compatible

n

Packaged in 16-lead TSSOP

Key Specifications

n

Conversion Rate

50 kSPS to 200 kSPS

n

DNL (V

n

INL (V

n

Power Consumption

— 3V Supply

0.9 mW (typ)

— 5V Supply

5.5 mW (typ)

Applications

n

Automotive Navigation

n

Portable Systems

n

Medical Instruments

n

Mobile Communications

n

Instrumentation and Control Systems

Connection Diagram

20166705

Ordering Information

Order Code

Temperature Range

Description

ADC088S022CIMT

−40˚C to +105˚C

16-Lead TSSOP Package

ADC088S022CIMTX

−40˚C to +105˚C

16-Lead TSSOP Package, Tape & Reel

ADC088S022EVAL

Evaluation Board

October 2006

© 2006 National Semiconductor Corporation

DS201667

www.national.com