1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

CS

SCLK

V

A

DOUT

AGND

DIN

IN0

V

D

IN1

DGND

IN2

IN7

IN3

IN6

IN4

IN5

ADC128S022

ADC128S022

www.ti.com

SNAS334E – AUGUST 2005 – REVISED MARCH 2013

ADC128S022 8-Channel, 50 kSPS to 200 kSPS, 12-Bit A/D Converter

Check for Samples: ADC128S022

1

FEATURES

DESCRIPTION

The ADC128S022 is a low-power, eight-channel

23

•

Eight Input Channels

CMOS 12-bit analog-to-digital converter specified for

•

Variable Power Management

conversion throughput rates of 50 ksps to 200 ksps.

•

Independent Analog and Digital Supplies

The

converter

is

based

on

a

successive-

approximation register architecture with an internal

•

SPI™/QSPI™/MICROWIRE™/DSP Compatible

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

•

Packaged in 16-lead TSSOP

up to eight input signals at inputs IN0 through IN7.

The output serial data is straight binary and is

APPLICATIONS

compatible with several standards, such as SPI™,

•

Automotive Navigation

QSPI, MICROWIRE, and many common DSP serial

•

Portable Systems

interfaces.

•

Medical Instruments

The ADC128S022 may be operated with independent

•

Mobile Communications

can range from +2.7V to +5.25V, and the digital

•

Instrumentation and Control Systems

power consumption using a +3V or +5V supply is 1.2

KEY SPECIFICATIONS

mW and 7.5 mW, respectively. The power-down

•

Conversion Rate: 50 ksps to 200ksps

feature reduces the power consumption to 0.06 µW

using a +3V supply and 0.25 µW using a +5V supply.

•

The ADC128S022 is packaged in a 16-lead TSSOP

•

package. Operation over the extended industrial

•

Power Consumption

temperature range of

−40°C to +105°C is ensured.

–

3V Supply: 1.2 mW (typ)

–

5V Supply: 7.5 mW (typ)

Connection Diagram

Figure 1. TSSOP

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

SPI is a trademark of Motorola, Inc..

3

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2005–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.