AD737JRZ-5-R7 datasheet(8/24 Pages) AD

No de pièce	AD737JRZ-5-R7

Description	Low Cost, Low Power, True RMS-to-DC Converter

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Fabricant	AD [Analog Devices]

Site Internet	http://www.analog.com

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8 / 24 page

AD737

Data Sheet

Rev. I | Page 8 of 24

TYPICAL PERFORMANCE CHARACTERISTICS

TA = 25°C, ±VS = ±5 V (except AD737J-5, where ±VS = ±2.5 V), CAV = 33 µF, CC = 10 µF, f = 1 kHz, sine wave input applied to Pin 2,

unless otherwise specified.

VIN = 200mV rms

CAV = 100µF

CF = 22µF

–0.5

–0.3

–0.1

0

0.3

0.1

0.5

0.7

0

4

2

8

6

12

14

10

16

SUPPLY VOLTAGE (±V)

Figure 4. Additional Error vs. Supply Voltage

0

2

4

6

8

12

10

14

16

0

4

2

8

6

12

14

10

16

SUPPLY VOLTAGE (±V)

PIN 1

PIN 2

DC COUPLED

Figure 5. Peak Input Level for 1% Saturation vs. Supply Voltage

5

10

20

15

25

0

2

4

6

8

10

12

14

16

18

DUAL SUPPLY VOLTAGE (±V)

Figure 6. Supply Current (Power-Down Mode) vs. Supply Voltage (Dual)

100µV

1mV

10mV

1V

100mV

10V

0.1

1

100

10

1000

FREQUENCY (kHz)

CAV = 22µF, CF = 4.7µF, CC = 22µF

1% ERROR

–3dB

10% ERROR

Figure 7. Frequency Response Driving Pin 1; Negative DC Output

100µV

1mV

10mV

1V

100mV

10V

0.1

1

100

10

1000

FREQUENCY (kHz)

CAV = 22µF, CF = 4.7µF, CC = 22µF

1% ERROR

10% ERROR

–3dB

Figure 8. Frequency Response Driving Pin 2; Negative DC Output

CAV = 100µF

CAV = 250µF

0

1

2

3

4

5

6

1

2

3

4

5

CREST FACTOR (VPEAK/V rms)

CAV = 10µF

CAV = 33µF

3ms BURST OF 1kHz =

3 CYCLES

200mV rms SIGNAL

CC = 22µF

CF = 100µF

Figure 9. Additional Error vs. Crest Factor

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