HY12P62 datasheet(21/26 Pages) HYCON

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HY12P62

2000 Counts Digital T-RMS DMM

www.hycontek.com

Preliminary

DS-HY12P62-V02_EN

Page 21

5.8. Σ∆ADC, Power Supply and Recommended Operating Conditions

TA = 25℃, VDD=3.0V, VDDA=2.4V, VR=1.2V, AGND=0.3VDDA, ADC Clock=400kHz Input buffer on unless otherwise noted

Sym.

Parameter

Test Conditions

Min.

Typ.

Max.

unit

fΣ∆ADC

Modulator sample frequency, ADC_CK

400

KHz

I Σ∆ADC

Operation supply current

Input gain =0.9, input buffer on

ADC_CK=400KHz

550

OSR=2500~20000

17D79

OSR=64~256

3FFFF

DΣ∆ADC

Maximum ADC Output

Code (ADC Gain Factor)

OSR=32

3FD7C

Input gain=0.9,

reference gain=1

100

Eos

Input offset voltage

Chopper on

OSR=20000

Input gain=3.6,

reference gain=0.33

Input gain=0.9,

reference gain=1

200

600

Rev

Roll-over error voltage

Chopper on

OSR=20000

Input gain=3.6,

reference gain=0.33

Chopper on, OSR=20000, input gain=0.9

reference gain=1

Chopper on, OSR=20000, input gain=3.6

reference gain=0.33

Chopper off, OSR=32, input gain=0.9 reference

gain=1

400

Vrms

Input RMS Noise

Chopper off, OSR=32, input gain=3.6 reference

gain=0.33

Input gain=0.9,

reference gain=1.

Vin=200mVrms

50/60Hz

Normal Rejection ratio

Chopper On

OSR=20000

ADCLK=1

Input gain=3.6,

reference gain=0.33.

Vin=20mVrms

50/60Hz

0.5% error

350

ACbw

AC Measurement

Bandwidth (Sine wave

only)

OSR=32,

LPFBW=1024

3dB

TBD

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