ES51932 datasheet(3/35 Pages) CYRUSTEK

Il numero della parte	ES51932

Spiegazioni elettronici	22,000 Counts Auto DMM

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Produttore elettronici	CYRUSTEK [Cyrustek corporation]

Homepage	http://www.cyrustek.com.tw

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3 / 35 page

Ver. 1.2

10/05/27

3

ES51932

22,000 Counts Auto DMM

Pin Description

Pin No

Symbol

Type

Description

1

V+

O

Output of on-chip DC-DC converter.

2

V+

O

Output of on-chip DC-DC converter.

3

DGND

P/G Digital ground. Connecting to 3V battery positive terminal.

4

AGND

P/G Analog ground.

5

AGND

P/G Analog ground.

6

CH+

IO

Positive connection for reference capacitor of high-speed A/D.

7

CH-

IO

Negative connection for reference capacitor of high-speed A/D.

8

CIH

O

High-speed integrator output. Connect to integral capacitor.

9

BUFFH

O

High-speed buffer output pin. Connect to integral resistor.

10

CAZH

O

High-speed auto-zero capacitor connection.

11

CL+

IO

Positive connection for reference capacitor of high-resolution A/D.

12

CL-

IO

Negative connection for reference capacitor of high- resolution A/D.

13

CIL

O

High-resolution integrator output. Connect to integral capacitor.

14

CAZL

O

High-resolution auto-zero capacitor connection.

15

BUFFL

O

High-resolution Buffer output pin. Connect to integral resistor

16

RAZ

O

Buffer output pin in AZ and ZI phase.

17

IVSH

I

Current measurement input for 2200μA, 220mA and 22A modes.

18

IVSL

I

Current measurement input for 220μA, 22mA.

19

OVX

I

Input high voltage for resistance measurement

20

OVH

I

Output connection for resistance measurement

21

OVSG

O

Sense low voltage for resistance measurement

22

OR1

O

Reference resistor connection for 220.00Ω range

23

VR5

O

Voltage measurement ÷10000 attenuator(1000.0V)

24

VR4

O

Voltage measurement ÷1000 attenuator(220.00V)

25

VR3

O

Voltage measurement ÷100 attenuator(22.000V)

26

VR2

O

Voltage measurement ÷10 attenuator(2.2000V)

27

TEST5

IO

Test pin

28

ACVL

O

DC signal low input in ACV/ACA mode. Connect to negative output

of external AC to DC converter.

29

ACVH

O

DC signal high input in ACV/ACA mode. Connect to positive output

of external AC to DC converter.

30

ADI

I

Negative input of internal AC to DC OP Amp.

31

ADO

O

Output of internal AC to DC OP Amp.

32

OHMC1

O

Filter capacitor connection for resistance mode.

33

OHMC2

O

Filter capacitor connection for resistance mode.

34

OHMC3

O

Filter capacitor connection for resistance mode.

35

OHMC4

O

Filter capacitor connection for resistance mode.

36

NC

-

37

VRH

O

Output of band-gap voltage reference. Typically –1.23V

38

VR

I

Reference input voltage connection. Typically –100mV

39

SGND

G

Signal Ground.

40

ADP

I

Measurement input in ADP mode. Connect to AGND if no used.

41

VA+

I

For ADP mode. De-integrating voltage positive input. The input

should be higher than VA-.

42

VA-

I

For ADP mode. De-integrating voltage negative input. The input

should be lower than VA+.

43

V220m

I

Independent input terminal for AC/DC 220.00mV mode.

44

VR1

I

Measurement Input.

45

VBAR

I

In temperature mode, it is used to control decimal point.

In µA or mA modes, it is used to control the ‘µ’ or ‘m’ sign.

46

CA-

IO

Negative auto-zero capacitor connection for capacitor measurement

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