MAX1279 Maxim Integrated Products, MAX1279 Datasheet

MAX1279

Manufacturer Part Number

MAX1279

Description

(MAX1277 / MAX1279) 12-Bit ADCs

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX1279.pdf (18 pages)

Available stocks

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Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

MAX1279KTB+T

Manufacturer:

MAXIM/美信

Quantity:

20 000

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The MAX1277/MAX1279 are low-power, high-speed, seri-

al-output, 12-bit, analog-to-digital converters (ADCs) with

an internal reference that operates at up to 1.5Msps.

These devices feature true-differential inputs, offering bet-

ter noise immunity, distortion improvements, and a wider

dynamic range over single-ended inputs. A standard

SPI™/QSPI™/MICROWIRE™ interface provides the clock

necessary for conversion. These devices easily interface

with standard digital signal processor (DSP) synchronous

serial interfaces.

The MAX1277/MAX1279 operate from a single +2.7V to

+3.6V supply voltage. The MAX1277/MAX1279 include a

2.048V internal reference. The MAX1277 has a unipolar

analog input, while the MAX1279 has a bipolar analog

input. These devices feature a partial power-down mode

and a full power-down mode for use between conver-

sions, which lower the supply current to 2mA (typ) and

1µA (max), respectively. Also featured is a separate

power-supply input (V

+1.8V to V

low-power dissipation, excellent AC performance, and DC

accuracy (±1 LSB INL) make the MAX1277/MAX1279

ideal for industrial process control, motor control, and

base-station applications.

The MAX1277/MAX1279 come in a 12-pin TQFN pack-

age, and are available in the commercial (0°C to +70°C)

and extended (-40°C to +85°C) temperature ranges.

19-3365; Rev 0; 8/04

SPI/QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Differential, 12-Bit ADCs with Internal Reference

TOP VIEW

Data Acquisition

Bill Validation

Motor Control

RGND

AIN-

REF

digital logic. The fast conversion speed,

________________________________________________________________ Maxim Integrated Products

1.5Msps, Single-Supply, Low-Power, True-

AIN+

), which allows direct interfacing to

General Description

MAX1277

MAX1279

TQFN

N.C.

Pin Configuration

Communications

Portable Instruments

SCLK

GND

Applications

CNVST

DOUT

♦ 1.5Msps Sampling Rate

♦ Only 22mW (typ) Power Dissipation

♦ Only 1µA (max) Shutdown Current

♦ High-Speed, SPI-Compatible, 3-Wire Serial Interface

♦ 68.5dB S/(N + D) at 525kHz Input Frequency

♦ Internal True-Differential Track/Hold (T/H)

♦ Internal 2.048V Reference

♦ No Pipeline Delays

♦ Small 12-Pin TQFN Package

MAX1277ACTC-T

MAX1277BCTC-T

MAX1277AETC-T

MAX1277BETC-T

MAX1279ACTC-T

MAX1279BCTC-T

MAX1279AETC-T

MAX1279BETC-T

+2.7V TO +3.6V

4.7µF

DIFFERENTIAL

10µF

PART

VOLTAGE

INPUT

0.01µF

Typical Operating Circuit

0.01µF

TEMP RANGE

-40°C to +85°C 12 TQFN-12

0°C to +70°C 12 TQFN-12

AIN+

AIN-

REF

RGND

Ordering Information

MAX1277

MAX1279

+1.8V TO V

GND

CNVST

PIN-

PACKAGE

DOUT

0.01µF

SCLK

Features

10µF

Unipolar

µC/DSP

Bipolar

INPUT

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