1

2

3

4

5

6

7

8

9

10

CS

SCLK

DOUT

DIN

IN1

GND

IN4

IN3

IN2

ADC124S101

ADC124S101

www.ti.com

SNAS283D – MARCH 2005 – REVISED MARCH 2013

ADC124S101 4 Channel, 500 ksps to 1 Msps, 12-Bit A/D Converter

Check for Samples: ADC124S101

1

FEATURES

DESCRIPTION

The ADC124S101 is a low-power, four-channel

2

•

Specified Over a Range of Sample Rates

CMOS 12-bit analog-to-digital converter with a high-

•

Four Input Channels

speed

serial

interface.

Unlike

the

conventional

•

Variable Power Management

practice of specifying performance at a single sample

rate only, the ADC124S101 is fully specified over a

•

Single Power Supply with 2.7V - 5.25V range

sample rate range of 500 ksps to 1 Msps. The

converter is based on a successive-approximation

APPLICATIONS

register architecture with an internal track-and-hold

•

Portable Systems

circuit. It can be configured to accept up to four input

signals at inputs IN1 through IN4.

•

Remote Data Acquisition

•

Instrumentation and Control Systems

The output serial data is straight binary, and is

compatible with several standards, such as SPI™,

QSPI™, MICROWIRE, and many common DSP

KEY SPECIFICATIONS

serial interfaces.

•

DNL: +0.9/

−0.6 LSB (typ)

The ADC124S101 operates with a single supply that

•

INL: ± 0.64 LSB (typ)

can range from +2.7V to +5.25V. Normal power

•

SNR: 72.4 dB (typ)

consumption using a +3V or +5V supply is 4.3 mW

•

Power Consumption

and 13.1 mW, respectively. The power-down feature

reduces the power consumption to just 0.14 µW using

–

3V Supply: 4.3 mW (typ)

a +3V supply, or 0.32 µW using a +5V supply.

–

5V Supply: 13.1 mW (typ)

The ADC124S101 is available in a 10-lead VSSOP

package. Operation over the industrial temperature

range of

−40°C to +85°C.

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

Resolution

Specified for Sample Rate Range of:

50 to 200 ksps

200 to 500 ksps

500 ksps to 1 Msps

12-bit

ADC124S021

ADC124S051

ADC124S101

10-bit

ADC104S021

ADC104S051

ADC104S101

8-bit

ADC084S021

ADC084S051

ADC084S101

(1)

All devices are fully pin and function compatible.

Connection Diagram

Figure 1. 10-Lead VSSOP

See DGS Package

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

All 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.