ADC084S021

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SNAS279E – APRIL 2005 – REVISED MARCH 2013

ADC084S021 4-Channel, 50 ksps to 200 Ksps, 8-Bit A/D Converter

Check for Samples: ADC084S021

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FEATURES

DESCRIPTION

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•

Specified Over a Range of Sample Rates.

The ADC084S021 is a low-power, four-channel

•

Four Input Channels

CMOS 8-bit analog-to-digital converter with a high-

•

Variable Power Management

speed

serial

interface.

Unlike

the

conventional

practice of specifying performance at a single sample

•

Single Power Supply with 2.7V - 5.25V Range

rate only, the ADC084S021 is fully specified over a

sample rate range of 50 ksps to 200 ksps. The

APPLICATIONS

converter is based upon a successive-approximation

•

Portable Systems

register architecture with an internal track-and-hold

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

•

Remote Data Acquisition

signals at inputs IN1 through IN4.

•

Instrumentation and Control Systems

The output serial data is straight binary, and is

KEY SPECIFICATIONS

compatible with several standards, such as SPI™,

QSPI™, MICROWIRE, and many common DSP

•

DNL: ±0.04 LSB (typ)

serial interfaces.

•

INL: ±0.04 LSB (typ)

The ADC084S021 operates with a single supply that

•

SNR: 49.6 dB (typ)

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

•

Power Consumption

consumption using a +3V or +5V supply is 1.6 mW

and 5.8 mW, respectively. The power-down feature

–

3V Supply: 1.6 mW (typ)

reduces the power consumption to just 0.12 µW using

–

5V Supply: 5.8 mW (typ)

a +3V supply, or 0.35 µW using a +5V supply.

The ADC084S021 is packaged in a 10-lead VSSOP

package. Operation over the industrial temperature

range of

−40°C to +85°C is ensured.

Table 1. Pin-Compatible Alternatives by Resolution and Speed

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

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

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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.