AS8268 Просмотр технического описания (PDF) - austriamicrosystems AG

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AS8268

Single-Phase 2-Current Energy Measurement Integrated Circuits with Microcontroller, RTC, Programmable Multi-Purpose I/Os, LCD Driver and On-Chip FLASH Memory

austriamicrosystems AG 

Data Sheet AS8267 / AS8268

Parameter

Symbol

Min

Error variation over temperature err(temp)

Error variation over cos(phi)

err(cosphi)

Typ

Max

0.5

0.5

Unit Notes

% Within operating

temperature range, 1)

% From 1 to 0.5, 1)

Error variation with VDD

err(VDD)

0.2

% 1)

Output pulse jitter

J

0.1

% 2)

Mains voltage

Vmains

264

V(rms) 240V + 10%, 3)

Measured current

Imax

120

A(rms) 3)

Measurement bandwidth

BW

1.75

kHz

Notes:

1) Errors determined during energy measurement using a demo board and a reference meter with high

accuracy (0.05%), which calculates the actual error.

2) Difference between largest and smallest error of 20 successive error samples; maximum meter constant:

1,600i/kWh; reference meter: 10,000 x DUT-meter-constant; measured at 5% Ib, Ib and Imax.

3) What is used for system considerations/calculations.

Revision 1.0, 19-Jun-07

Page 11 of 136

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