LTC2301CDEXPBF datasheet(1/24 Pages) LINER

部件名	LTC2301CDEXPBF

功能描述	1-/2-Channel, 12-Bit ADCs with I2C Compatible Interface

PDF	24 Pages

Scroll/Zoom	100%

制造商	LINER [Linear Technology]

网页	http://www.linear.com

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1 / 24 page

LTC2301/LTC2305

1

23015f

BLOCK DIAGRAM

FEATURES

APPLICATIONS

DESCRIPTION

1-/2-Channel, 12-Bit ADCs

with I2C Compatible Interface

The LTC®2301/LTC2305 are low noise, low power, 1-/2-

channel, 12-bit successive approximation ADCs with an I2C

compatible serial interface. These ADCs include an internal

reference and a fully differential sample-and-hold circuit

to reduce common-mode noise. The LTC2301/LTC2305

operate from an internal clock to achieve a fast 1.3μs

conversion time.

The LTC2301/LTC2305 operate from a single 5V supply

and draw just 300μA at a throughput rate of 1ksps. The

ADC enters nap mode when not converting, reducing the

power dissipation.

The LTC2301/LTC2305 are available in small 12-pin

4mm × 3mm DFN and 12-pin MSOP packages. The in-

ternal 2.5V reference further reduces PCB board space

requirements.

The low power consumption and small size make the

LTC2301/LTC2305 ideal for battery operated and portable

applications, while the 2-wire I2C compatible serial interface

makes these ADCs a good match for space-constrained

systems.

12-Bit I2C ADC Famly

Input Channels

1

2

8

Part Number

LTC2301

LTC2305

LTC2309

Integral Nonlinearity vs Output Code (LTC2305)

n 12-Bit Resolution

n Low Power: 1.5mW at 1ksps, 35μW Sleep Mode

n 14ksps Throughput Rate

n Internal Reference

n Low Noise: SNR = 73.5dB

n Guaranteed No Missing Codes

n Single 5V Supply

n 2-wire I2C Compatible Serial Interface with 9

Addresses Plus One Global for Synchronization

n Fast Conversion Time: 1.3μs

n 1-Channel (LTC2301) and 2-Channel (LTC2305)

Versions

n Unipolar or Bipolar Input Ranges (Software

Selectable)

n Internal Conversion Clock

n Guaranteed Operation from –40°C to 125°C

(MSOP Package)

n 12-Pin 4mm × 3mm DFN and 12-Pin MSOP

Packages

n Industrial Process Control

n Motor Control

n Accelerometer Measurements

n Battery Operated Instruments

n Isolated and/or Remote Data Acquisition

n Power Supply Monitoring

L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

23015 TA01a

+

–

12-BIT

SAR ADC

ANALOG

INPUT

MUX

ANALOG INPUT

0V TO 4.096V UNIPOLAR

±2.048V BIPOLAR

I2C

PORT

INTERNAL

2.5V REF

0.1μF

10μF

2.2μF

VREF

REFCOMP

SCL

SDA

AD1

AD0

CH0(IN+)

CH1(IN+)

PIN NAMES IN PARENTHESES

REFER TO LTC2301

10μF

0.1μF

VDD

LTC2301

LTC2305

GND

5V

OUTPUT CODE

0

1.00

0.75

0.25

–0.25

–0.75

0.50

0.00

–0.50

–1.00

2048

1024

3072

23015 TA01b

4096

类似零件编号 - LTC2301CDEXPBF

制造商	部件名	数据表	功能描述
Linear Technology	LTC2301	759Kb / 36P	SPI/Digital or I2C 關Module Isolator with Adjustable 짹12.5V and 5V Regulated Power
	LTC2301	761Kb / 36P	SPI/Digital or I2C 關Module Isolator with Adjustable 짹12.5V and 5V Regulated Power
	LTC2301	891Kb / 26P	1-/2-Channel, 12-Bit ADCs with I2C Compatible Interface

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类似说明 - LTC2301CDEXPBF

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