AD7523LN datasheet(5/9 Pages) INTERSIL

부품명	AD7523LN

상세설명	8-Bit, Multiplying D/A Converters

Download	9 Pages

Scroll/Zoom	100%

제조업체	INTERSIL [Intersil Corporation]

홈페이지	http://www.intersil.com/cda/home

Logo

5 / 9 page

10-12

Unipolar Binary Operation - AD7533 (10-Bit DAC)

The circuit conﬁguration for operating the AD7533 in

unipolar mode is shown in Figure 2. 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 2.

Zero Offset Adjustment

1. Connect all digital inputs to GND.

2. Adjust the offset zero adjust trimpot of the output

operational ampliﬁer for 0V

±1mV (Max) at VOUT.

Gain Adjustment

1. Connect all digital inputs to V+.

2. Monitor VOUT for a -VREF (1 - 1/2

10) reading.

3. To increase VOUT, connect a series resistor, R2, (0Ω to

250

Ω) in the IOUT1 ampliﬁer feedback loop.

4. To decrease VOUT, connect a series resistor, R1, (0Ω to

250

Ω) between the reference voltage and the VREF

terminal.

Bipolar (Offset Binary) Operation - AD7523

The circuit conﬁguration for operating the AD7523 in the

bipolar mode is given in Figure 3. Using offset binary digital

input codes and positive and negative reference voltage

values, Four-Quadrant multiplication can be realized. The

“Digital Input Code/Analog Output Value” table for bipolar

mode is given in Table 3.)

A “Logic 1” input at any digital input forces the corresponding

ladder switch to steer the bit current to IOUT1 bus. A “Logic

0” input forces the bit current to IOUT2 bus. For any code the

IOUT1 and IOUT2 bus currents are complements of one

another. The current ampliﬁer at IOUT2 changes the polarity

of IOUT2 current and the transconductance ampliﬁer at IOUT

output sums the two currents. This conﬁguration doubles the

output range. The difference current resulting at zero offset

binary code, (MSB = “Logic 1”, all other bits = “Logic 0”), is

corrected by suing an external resistor, (10M

Ω), from VREF

to IOUT2 (Figure 3).

TABLE 2. UNlPOLAR BINARY CODE - AD7533

DIGITAL INPUT

MSB

LSB

(NOTE 1)

NOMINAL ANALOG OUTPUT

1111111111

1000000001

1000000000

0111111111

0000000001

0000000000

NOTES:

1. VOUT as shown in the Functional Diagram.

2. Nominal Full Scale for the circuit of Figure 2 is given by:

.

3. Nominal LSB magnitude for the circuit of Figure 2 is given by:

.

V

REF

1023

1024

-------------





–

V

REF

513

1024

-------------





–

V

REF

512

1024

-------------





–

V

REF

2

---------------

–

=

V

REF

511

1024

-------------





–

V

REF

1

1024

-------------





–

V

REF

0

1024

-------------





–

0

=

FS

V

REF

1023

1024

-------------





–

=

LSB

V

REF

1

1024

-------------





=

TABLE 3. BlPOLAR (OFFSET BINARY) CODE - AD7523

DIGITAL INPUT

MSB

LSB

ANALOG OUTPUT

11111111

10000001

10000000

0

01111111

00000001

00000000

NOTE:

1.

.

V

REF

127

128

----------





–

V

REF

1

128

----------





–

+V

REF

1

128

----------





+V

REF

127

128

----------





+V

REF

128

----------





1 LSB

2

7

–

() V

REF

()

1

128

----------



 V

REF

()

==

IOUT2

6

RFEEDBACK

6

-

+

IOUT1

CR1

15

16

1

4

13

3

2

AD7523/

MSB

LSB

14

+15V

VREF

DATA

INPUTS

AD7533

±10V

R3 5K

R4 5K

VOUT

R2

CR2

R1

R6 10M

Ω

FIGURE 3. BIPOLAR OPERATION (4-QUADRANT MULTIPLICATION)

-

+

AD7523, AD7533

유사한 부품 번호 - AD7523LN

제조업체	부품명	데이터시트	상세설명
Intersil Corporation	AD7523LN	6Mb / 180P	Data Acquisition

More results

유사한 설명 - AD7523LN

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
NXP Semiconductors	MC1508-8	132Kb / 6P	8-bit multiplying D/A converter August 31, 1994
Intersil Corporation	AD7520	373Kb / 10P	10-Bit, 12-Bit, Multiplying D/A Converters
NXP Semiconductors	MC1408-8	127Kb / 10P	8-bit multiplying D/A converter 2001 Aug 03
List of Unclassifed Man...	DAC-1408A	399Kb / 6P	8-BIT MULTIPLYING D/A CONVERTER
Advanced Micro Devices	AM1508	336Kb / 4P	8-Bit Multiplying D/A Converter
Analog Devices	PM7545	520Kb / 12P	12-BIT BUFFERED MULTIPLYING CMOS D/A CONVERTERS REV. C
C&D Technologies	DAC-7134B	584Kb / 6P	14-BIT MICROPROCESSOR-COMPATIBLE MULTIPLYING D/A CONVERTERS
List of Unclassifed Man...	PM7545HPZ	3Mb / 11P	12-BIT BUFFERED MULTIPLYING CMOS D/A CONVERTERS

More results

AD7523LN 데이터시트(PDF) 5 Page - Intersil Corporation

AD7523LN 데이터시트(HTML) 5 Page - Intersil Corporation

유사한 부품 번호 - AD7523LN

유사한 설명 - AD7523LN

Html Pages

1 2 3 4 5 6 7 8 9

데이터시트 다운로드

링크 URL