ADCS7476, ADCS7477, ADCS7478

www.ti.com

SNAS192F – APRIL 2003 – REVISED MARCH 2013

ADCS7476

ADCS7477

ADCS7478 1MSPS, 12-/10-/8-Bit A/D Converters in SOT-23 & WSON

Check for Samples: ADCS7476, ADCS7477, ADCS7478

1

FEATURES

DESCRIPTION

2

•

Variable Power Management

The ADCS7476, ADCS7477, and ADCS7478 are low

•

Packaged in 6-Lead, SOT-23 and WSON

power, monolithic CMOS 12-, 10- and 8-bit analog-to-

•

Power Supply used as Reference

digital converters that operate at 1 MSPS. The

ADCS7476/77/78

are

drop-in

replacements

for

•

Single +2.7V to +5.25V Supply Operation

Analog Devices' AD7476/77/78. Each device is based

•

SPI™/QSPI™/MICROWIRE™/DSP Compatible

on a successive approximation register architecture

with internal track-and-hold. The serial interface is

APPLICATIONS

compatible with several standards, such as SPI™,

QSPI™, MICROWIRE™, and many common DSP

•

Automotive Navigation

serial interfaces.

•

FA/ATM Equipment

The ADCS7476/77/78 uses the supply voltage as a

•

Portable Systems

reference, enabling the devices to operate with a full-

•

Medical Instruments

•

Mobile Communications

determined from the serial clock (SCLK) speed.

These converters offer a shutdown mode, which can

•

Instrumentation and Control Systems

be used to trade throughput for power consumption.

The ADCS7476/77/78 is operated with a single

KEY SPECIFICATIONS

supply that can range from +2.7V to +5.25V. Normal

•

Resolution with no Missing Codes 12/10/8 bits

power consumption during continuous conversion,

using a +3V or +5V supply, is 2 mW or 10 mW

•

Conversion Rate 1 MSPS

respectively. The power down feature, which is

•

DNL +0.5, -0.3 LSB (typ)

enabled by a chip select (CS) pin, reduces the power

•

INL ± 0.4 LSB (typ)

consumption to under 5 µW using a +5V supply. All

•

Power Consumption

three converters are available in a 6-lead, SOT-23

package and in a 6-lead WSON, both of which

–

3V Supply 2 mW (typ)

provide an extremely small footprint for applications

–

5V Supply 10 mW (typ)

where space is a critical consideration. These

products

are

designed

for

operation

over

the

automotive/extended industrial temperature range of

−40°C to +125°C.

Connection Diagram

Figure 1. 6-Lead SOT-23 or WSON

See DBV or NGF 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 © 2003–2013, 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.