ADE7757(2002) データシートの表示（PDF） - Analog Devices

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ADE7757
(Rev.:2002)

Energy Metering IC with Integrated Oscillator

Analog Devices 

PRELIMINARY TECHNICAL DATA

ADE7757

TIMING CHARACTERISTICS1, 2

Parameter A, B Versions

(VDD = 5 V ؎ 5%, AGND = DGND = 0 V, On-Chip Reference, rCKLIN = 5 kΩ 0.1% 5ppm/°C,

TMIN to TMAX = –40؇C to +85؇C)

Units Test Conditions/Comments

t13

550

t2

See Table II

t3

1/2 t2

t43, 4

180

t5

See Table III

t6

TBD

ms F1 and F2 Pulsewidth (Logic Low)

sec Output Pulse Period. See Transfer Function Section

sec Time Between F1 Falling Edge and F2 Falling Edge

ms CF Pulsewidth (Logic High)

sec CF Pulse Period. See Transfer Function Section

sec Minimum Time Between F1 and F2 Pulse

NOTES

1Sample tested during initial release and after any redesign or process change that may affect this parameter.

2See Figure 1.

3The pulsewidths of F1, F2 and CF are not fixed for higher output frequencies. See Frequency Outputs Section.

4The CF pulse is always 18 µs in the high frequency mode. See Frequency Outputs section and Table III.

Specifications subject to change without notice.

t1

F1

.t6

.t2

F2

.t3

t4

.t5

CF

Figure 1. Timing Diagram for Frequency Outputs

Model

ADE7757ARN

EVAL-ADE7757EB

ORDERING GUIDE

Package Description

SOIC narrow-body

Evaluation Board

Package Options

RN-16

Evaluation Board

REV. PrC.

–3–

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