MAX11645 Maxim Integrated Products, MAX11645 Datasheet

MAX11645

Manufacturer Part Number

MAX11645

Description

2-Wire Serial 12-Bit ADCs

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX11645.pdf (21 pages)

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The MAX11644/MAX11645 low-power, 12-bit, 1-/2-

channel analog-to-digital converters (ADCs) feature

internal track/hold (T/H), voltage reference, clock, and

an I2C-compatible 2-wire serial interface. These

devices operate from a single supply of 2.7V to 3.6V

(MAX11645) or 4.5V to 5.5V (MAX11644) and require

only 670µA at the maximum sampling rate of 94.4ksps.

Supply current falls below 230µA for sampling rates

under 40ksps. AutoShutdown™ powers down the

devices between conversions, reducing supply current

to less than 1µA at low throughput rates. The

MAX11644/MAX11645 each measure two single-ended

or one differential input. The fully differential analog

inputs are software configurable for unipolar or bipolar,

and single-ended or differential operation.

The full-scale analog input range is determined by the

internal reference or by an externally applied reference

voltage ranging from 1V to V

tures a 2.048V internal reference and the MAX11644

features a 4.096V internal reference.

The MAX11644/MAX11645 are available in an 8-pin

µMAX

anteed over the extended temperature range (-40°C to

+85°C). For pin-compatible 10-bit parts, refer to the

MAX11646/MAX11647 data sheet.

Handheld Portable

Applications

Medical Instruments

Battery-Powered Test

Equipment

Solar-Powered Remote

Systems

19-5225; Rev 0; 4/10

Typical Operating Circuit and Selector Guide appear at end

of data sheet.

AutoShutdown is a trademark and µMAX is a registered trademark

of Maxim Integrated Products, Inc.

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

package. The MAX11644/MAX11645 are guar-

2.7V to 3.6V and 4.5V to 5.5V, Low-Power,

________________________________________________________________ Maxim Integrated Products

1-/2-Channel, 2-Wire Serial, 12-Bit ADCs

General Description

Received-Signal-Strength

Indicators

System Supervision

Power-Supply Monitoring

. The MAX11645 fea-

Applications

o High-Speed I

o Single-Supply

o Internal Reference

o External Reference: 1V to V

o Internal Clock

o Internal FIFO with Channel-Scan Mode

o Low Power

o Software-Configurable Unipolar/Bipolar

o Small, 8-Pin µMAX Package

+ Denotes a lead(Pb)-free/RoHs-compliant package.

MAX11644EUA+ -40°C to +85°C

MAX11645EUA+ -40°C to +85°C

400kHz Fast Mode

1.7MHz High-Speed Mode

2.7V to 3.6V (MAX11645)

4.5V to 5.5V (MAX11644)

2.048V (MAX11645)

4.096V (MAX11644)

2-Channel Single-Ended or 1-Channel Fully

Differential

670µA at 94.4ksps

230µA at 40ksps

60µA at 10ksps

6µA at 1ksps

0.5µA in Power-Down Mode

PART

C-Compatible Serial Interface

TEMP RANGE

Ordering Information

PIN-

PACKAGE

8 µMAX

www.DataSheet4U.com

Features

ADDRESS

0110110

C SLAVE

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