LTM2893/LTM2893-1

25

28931fb

For more information www.linear.com/LTM2893

TYPICAL APPLICATIONS

Figure 13. Isolated 1Msps LTC2338-18 Fully Differential ±10V Input Range, with ADC Sleep Disabled (CNV2 = BUSYS)

LTM2893

100k

CNV

BUSY

SS

SCK

MISOA

MISOB

ON

ON2

CNV2

BUSYS

BUSY2

SS2

CNV

RDL

CHAIN

5Vi

5V

3.3V

REFIN

REFBUF

VDDLBYP

SHDN

0.1µF

10µF

2.2µF

47µF

3.3nF

OUTA

2.2µF

LTC2338-18

LTC6655-2.048

LT1469

20

6.8nF

±10V

DIFFERENTIAL

INPUT

500

OUTA

NOTE: LOWER CASE i’S AT THE END OF

SUPPLY INDICATES AN ISOLATED SUPPLY.

500

MASTER

FPGA

OR

MICROPROCESSOR

(HOST)

28931 F13

1µF

1µF

+15Vi

–15Vi

BUSY

SCK

SDO

SCK2

MISOA2

MISOB2

20

LTM2893

100k

CNV

BUSY

SS

SCK

MISOA

MISOB

ON

ON2

CNV2

BUSYS

BUSY2

SS2

CNV

RDL

CHAIN

5Vi

2.5Vi

5V

3.3V

SHDN

0.1µF

10µF

47µF

3.3nF

20Ω

OUT1

OUT2

SHDN

LTC2378-18

LT6350

LTC6655-5

0V TO 5V

INPUT

500

MASTER

FPGA

OR

MICRO-

PROCESSOR

(HOST)

28931 F13

1µF

1µF

8Vi

–2.5Vi

BUSY

SCK

SDO

SCK2

MISOA2

MISOB2

+

–

+

–

8Vi

–IN1

+IN1

+IN2

2.5Vi

1µF

20Ω

Figure 14. Isolated 1Msps LTC2378-18 Single-Ended 0V to 5V Input (BUSYS = GND2)