Linear Technology LTM2883-5I I2C µModule Isolator Demo Board (5.0V Supply) DC1748A-D DC1748A-D 数据表

1

dc1748af

DEMO MANUAL DC1748A

V

CC

Input Supply Range

LTM2883-5

4.5

5

5.5

V

LTM2883-3

3.0

3

3.6

V

V

CC2

Regulated Output Voltage 

4.75

5

5.25

V

Adjustable Output Voltage Range

3.0

5.5

V

Maximum Load Current

20

mA

V

+

Regulated Output Voltage

12

12.5

13

V

Adjustable Output Voltage Range

1.22

14

V

Maximum Load Current

20

mA

V

–

Regulated Output Voltage

–12

–12.5

–13

V

Adjustable Output Voltage Range

–1.22

14

V

Maximum Load Current

15

mA

f

MAX

Maximum Data Rate

DI1 

→ O1, Ix → DOx, C

L

 = 10pF

10

MHz

LTM2883-S, Bidirectional Communication
LTM2883-S, Unidirectional Communication

4
8

MHz
MHz

LTM2883-I

400

kHz

V

IORM

Maximum Working Insulation Voltage

GND to GND2

560
400

V

DC

V

RMS

Common Mode Transient Immunity

30

kV/μs

LTM2883 SPI/Digital or 

I

2

C µModule Isolator with Adjustable ±12.5V 

and 5V Regulated Power

Demonstration circuit 1748A is a serial peripheral interface 
bus (SPI) or inter-IC bus (I

2

C) SPI/digital or I

2

C μModule 

isolator with adjustable ±12.5V and 5V regulated power 
featuring the LTM2883. The demo circuit features an EMI 
optimized circuit confi guration and printed circuit board 
layout. All components are integrated into the μModule 
isolator. The demo circuit operates from a single external 

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear 
Technology Corporation. All other trademarks are the property of their respective owners.

supply on V

CC

. The part generates output voltages on V

CC2

, 

V

+

, and V

–

, which may be adjusted by external program-

ming resistors. It communicates all necessary signaling 
across the isolation barrier through LTC’s isolator μModule 
technology.