LTC2995 datasheet(32/90 Pages) AD

32 / 90 page

LTM2985

Rev. 0

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Table 26. Thermocouple #1 Channel Assignment (Type K, Cold Junction CH2, Single-Ended, 10µA Open-Circuit Detect)

CONFIGURATION

FIELD

DESCRIPTION # BITS BINARY DATA

MEMORY

ADDRESS 0x200

MEMORY

ADDRESS 0x201

MEMORY

ADDRESS 0x202

MEMORY

ADDRESS 0x203

(1) Thermocouple

Type

Type K

00010 0 0 0 1 0

(2) Cold Junction

Channel Pointer

CH2

00010

0 0 0 1 0

(3) Sensor

Configuration

Single-Ended,

10µA Open-Circuit

1100

1 1 0 0

Not Used

Set These Bits to 0

000000

0 0 0 0 0 0

(4) Custom

Thermocouple

Data Pointer

Not Custom

000000000000

0 0 0 0 0 0 0 0 0 0 0 0

Table 27. Diode Channel Assignment (Single-Ended 3-Reading, Averaging On, 20µA/80µA Excitation, Ideality Factor = 1.003))

CONFIGURATION

FIELD

DESCRIPTION # BITS

BINARY DATA

MEMORY

ADDRESS 0x204

MEMORY

ADDRESS 0x205

MEMORY

ADDRESS 0x206

MEMORY

ADDRESS 0x207

(1) Sensor Type

Diode

11100 1 1 1 0 0

(2) Sensor

Configuration

Single-Ended,

3-Reading,

Average On

111

1 1 1

(3) Excitation

Current

20µA, 80µA,

160µA

0 1

(4) Ideality Factor

1.003

0100000000110001001001

0 1 0 0 0 0 0 0 0 0 1 1 0 0 0 1 0 0 1 0 0 1

Table 28. Thermocouple #2 Channel Assignment (Type T, Cold Junction CH2, Differential, 100µA Open-Circuit Detect)

CONFIGURATION

FIELD

DESCRIPTION # BITS BINARY DATA

MEMORY

ADDRESS 0x20C

MEMORY

ADDRESS 0x20D

MEMORY

ADDRESS 0x20E

MEMORY

ADDRESS 0x20F

(1) Thermocouple

Type

Type T

00111 0 0 1 1 1

(2) Cold Junction

Channel Pointer

CH2

00010

0 0 0 1 0

(3) Sensor

Configuration

Differential,

100µA Open-

Circuit Current

0101

0 1 0 1

Not Used

Set These Bits

to 0

000000

0 0 0 0 0 0

(4) Custom

Thermocouple

Data Pointer

Not Custom

000000000000

0 0 0 0 0 0 0 0 0 0 0 0

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