AD7521 datasheet(5/10 Pages) INTERSIL

부품명	AD7521

상세설명	10-Bit, 12-Bit, Multiplying D/A Converters

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제조업체	INTERSIL [Intersil Corporation]

홈페이지	http://www.intersil.com/cda/home

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5

Applications

Unipolar Binary Operation

The circuit configuration for operating the AD7520 in

unipolar mode is shown in Figure 8. Similar circuits can be

used for AD7521. With positive and negative VREF values

the circuit is capable of 2-Quadrant multiplication. The Digital

Input Code/Analog Output Value table for unipolar mode is

given in Table 1.

Zero Offset Adjustment

1. Connect all digital inputs to GND.

2. Adjust the offset zero adjust trimpot of the output

operational amplifier for 0V at VOUT.

Gain Adjustment

1. Connect all digital inputs to V+.

2. Monitor VOUT for a -VREF (1-2-N) reading. (N = 8 for

AD7520 and N = 10 for AD7521).

FIGURE 4. NOISE

FIGURE 5. OUTPUT CAPACITANCE

FIGURE 6. FEEDTHROUGH ERROR

FIGURE 7. OUTPUT CURRENT SETTLING TIME

Test Circuits The following test circuits apply for the AD7520. Similar circuits are used for the AD7521. (Continued)

15

2

5

4

13 3 1

AD7520

101ALN

-

+

0.1

µF

IOUT1

IOUT2

14

10k

Ω

VOUT

100

Ω

15

µF

1K

+15V

50k

Ω

1k

Ω

-50V

f = 1kHz

BW = 1Hz

QUAN

TECH

MODEL 134D

WAVE

ANALYZER

+11V (ADJUST FOR VOUT = 0V)

15

16

1

5

4

13 3

2

AD7520

BIT 1 (MSB)

BIT 10 (LSB)

14

+15V

NC

SCOPE

100mVP-P

1MHz

NC

1k

Ω

+15V

15

16

1

5

4

13 3

2

AD7520

BIT 1 (MSB)

BIT 10 (LSB)

14

+15V

VREF = 20VP-P

GND

IOUT1

IOUT2

2

3

6

VOUT

100kHz SINE WAVE

HA2600

-

+

15

1

5

4

13 3

2

AD7520

BIT 1 (MSB)

BIT 10 (LSB)

14

+15V

SCOPE

+100mV

100

Ω

GND

VREF

DIGITAL

IOUT2

EXTRAPOLATE

5t: 1% SETTLING (1mV)

8t: 0.03% SETTLING

t = RISE TIME

INPUT

+5V

0V

+10V

15

16

1

5

4

13 3

2

AD7520

BIT 1 (MSB)

BIT 10 (LSB)

14

+15V

VREF

GND

IOUT1

IOUT2

6

VOUT

-

+

RFEEDBACK

DIGITAL

INPUT

FIGURE 8. UNIPOLAR BINARY OPERATION (2-QUADRANT

MULTIPLICATION)

TABLE 1. CODE TABLE - UNlPOLAR BINARY OPERATION

DIGITAL INPUT

ANALOG OUTPUT

1111111111

-VREF (1-2-N)

1000000001

-VREF (1/2 + 2-N)

1000000000

-VREF/2

0111111111

-VREF (1/2-2-N)

0000000001

-VREF (2-N)

0000000000

0

NOTES:

1. LSB = 2-N VREF.

2. N = 8 for 7520

N = 10 for 7521.

AD7520, AD7521

유사한 부품 번호 - AD7521

제조업체	부품명	데이터시트	상세설명
Intersil Corporation	AD7521	138Kb / 9P	10-Bit, 12-Bit, Multiplying D/A Converters August 1997
Analog Devices	AD7521	640Kb / 8P	CMOS 10&12-Bit Monolithic Multiplying D/A Converters
Intersil Corporation	AD7521	4Mb / 122P	P-CHANNEL JFET
Renesas Technology Corp	AD7521	541Kb / 10P	10-Bit, 12-Bit, Multiplying D/A Converters
National Semiconductor ...	AD7521JD	264Kb / 14P	10-Bit, 12-Bit Binary Multiplying D/A Converter

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유사한 설명 - AD7521

제조업체	부품명	데이터시트	상세설명
Intersil Corporation	AD7520	138Kb / 9P	10-Bit, 12-Bit, Multiplying D/A Converters August 1997
Renesas Technology Corp	AD7520	541Kb / 10P	10-Bit, 12-Bit, Multiplying D/A Converters
Analog Devices	AD7520	640Kb / 8P	CMOS 10&12-Bit Monolithic Multiplying D/A Converters
Maxim Integrated Produc...	MX7530	192Kb / 4P	CMOS 10 and 12 Bit Multiplying D/a Converters Rev 1; 7/95
Maxim Integrated Produc...	MX7520	294Kb / 8P	CMOS 10 and 12 Bit Multiplying D/A Converters Rev 1; 7/95
Analog Devices	AD7520	3Mb / 12P	CMOS 10 12 BIT MONOLITHIC MULTIPLYING D/A CONVERTERS REV. B
Maxim Integrated Produc...	MX7530-MX7531	2Mb / 4P	cmos 10 and 12 Bit Multiplying D/A Converters Rev 1; 7/95
Analog Devices	PM7545	520Kb / 12P	12-BIT BUFFERED MULTIPLYING CMOS D/A CONVERTERS REV. C
List of Unclassifed Man...	PM7545HPZ	3Mb / 11P	12-BIT BUFFERED MULTIPLYING CMOS D/A CONVERTERS
National Semiconductor ...	DAC1020	264Kb / 14P	10-Bit, 12-Bit Binary Multiplying D/A Converter

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AD7521 데이터시트(PDF) 5 Page - Intersil Corporation

AD7521 데이터시트(HTML) 5 Page - Intersil Corporation

유사한 부품 번호 - AD7521

유사한 설명 - AD7521

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