ES51921 datasheet(6/35 Pages) CYRUSTEK

No de pièce	ES51921

Description	22,000 Counts Auto DMM

Download	35 Pages

Scroll/Zoom	100%

Fabricant	CYRUSTEK [Cyrustek corporation]

Site Internet	http://www.cyrustek.com.tw

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6 / 35 page

Ver. 3.2

10/06/23

6

ES51921

22,000 Counts Auto DMM

Open circuit voltage for Ω

measurement (except 220Ω)

Ω

and Continuity

Mode

-0.58

-0.53

-0.48

V

Internal pull-low to V-

current

Between GND Pin

and SLACDC

1.5

µA

±1%

—

40-400

—

AC frequency response at 2.2000V

range

±5%

—

400-2000

—

HZ

3dB frequency for LPF mode

3rd order LPF

800

1000

1200

Hz

Reference voltage temperature

coefficient

TCRF

100KΩ

resister

Between

VRH

0℃<TA<70℃

—

75

—

ppm/℃

-1.0

—

1.0

%

22nF – 220nF

-10

—

10

counts

-1.0

—

1.0

%

2.2µF

-10

—

10

counts

-2.0

2.0

%

Capacitance measurement accuracy2

22µF~220mF

20

counts

Note

:

1.Full Scale

2.Above specification from 22nF to 2.2uF ranges are specified under REL mode. The

reading is calibrated to zero by relative function, when input is floating.

Function Description

1.

Operating Modes

1.1 Voltage Measurement

A re-configurable voltage divider automatically provides a suitable range in voltage

measurement mode. The following table summarizes the full-scale ranges in each

configuration.

Configuration Full Scale Range Divider Ratio Resistor Connection

Input Pin

VR1

220.00mV1

1

-

V220m V.S. SGND

VR2

2.2000V

1/10

R2 / (R1+R2)

VR1 V.S. SGND

VR3

22.000V

1/100

R3 / (R1+R3)

VR1 V.S. SGND

VR4

220.00V2

1/1000

R4 / (R1+R4)

VR1 V.S. SGND

VR5

2200.0V

1/10000

R5 / (R1+R5)

VR1 V.S. SGND

Note:

1.

220.00mV range is independent and manual mode. The input pin is different from other voltage

ranges.

2.

If VST is set to V- level, the auto range mode will start from 220.00V range. 2.2000V – 22.000V

ranges only exist in manual mode.

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