ML2350CCP/12 Micro Linear, ML2350CCP/12 Datasheet

ML2350CCP/12

Manufacturer Part Number

ML2350CCP/12

Description

Manufacturer

Micro Linear

Datasheet

1.ML2350CCP12.pdf (12 pages)

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GENERAL DESCRIPTION

The ML2340 and ML2350 are CMOS voltage output, 8-bit

D/A converters with an internal voltage reference and a µP

interface. These devices are designed to be powered by a

single supply, although they can be powered from dual

power supplies. The output voltage swings above zero

scale (V

are totally independent of each other. DGND can be set to

any voltage from AGND to 4.5V below V

interfacing to standard TTL and CMOS logic families.

The high level of integration and versatility of the ML2340

and ML2350 makes them ideal for a wide range of

applications in hard disk drives, automotive, telecom, and

a variety of general purpose industrial uses. One specific

intended application is controlling a hard disk voice coil.

The internal reference of the ML2340 provides a 2.25V or

4.50V output for use with A/D converters that use a single

5V ±10% power supply, while the ML2350 provide a

2.50V or 5.00V reference output.

BLOCK DIAGRAM

. The digital and analog grounds, DGND and AGND,

) in the bipolar mode, both with programmable gain.

can be set to any voltage from AGND to 2.25V below

) in the unipolar mode or around zero scale

REFOUT

DGND

REFIN

XFER

for easy

REF

(LSB)

DB0

DATA LATCH

8-BIT D/A

(MSB)

Single Supply, Programmable

DB7

FEATURES

AGND

Programmable output voltage gain settings of 2, 1,

around zero

AGND to V

Bipolar or unipolar output voltage

4.5V to 13.2V single supply or ±2.25V to ±6.5V

dual-supply operation

Transparent latch allows microprocessor interface

with 30ns setup time

Data flow-through mode

Voltage reference output

Nonlinearity .................................... ±

Output voltage settling time over temperature and

supply voltage tolerance

TTL and CMOS compatible digital inputs

Low supply current (5V supply) ..................... 5mA max

18-pin DIP or surface mount SOlC

ML2340 ........................................... 2.25V or 4.50V

ML2350 ........................................... 2.50V or 5.00V

Within 1V of V

Within 100mV of V

* This Part Is Obsolete

** This Part Is End Of Life As Of August 1, 2000

GAIN 0

provide 8-, 9-, 10-, or 11-bit effective resolution

DECODERS

RESISTORS

–

SWITCHES

AMP

ML2340*,

8-Bit D/A Converters

GAIN 1

output voltage swing

and AGND ................... 2.5µs max

OUT

and AGND ............... 5µs max

ML2350**

LSB or ±

May 1997

LSB

Related parts for ML2350CCP/12

ML2350CCP/12 Summary of contents

Page 1

GENERAL DESCRIPTION The ML2340 and ML2350 are CMOS voltage output, 8-bit D/A converters with an internal voltage reference and a µP interface. These devices are designed to be powered by a single supply, although they can be powered from dual ...

Page 2

ML2340, ML2350 PIN CONNECTIONS ML2340 ML2350 18-Pin DIP (P18 OUT AGND 4 15 DGND 5 14 DB0 6 13 DB1 7 12 DB2 8 11 DB3 9 10 TOP ...

Page 3

ABSOLUTE MAXIMUM RATINGS Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. Supply Voltage V with Respect to AGND ............ 14.2V ...

Page 4

ML2340, ML2350 ELECTRICAL CHARACTERISTICS PARAMETER NOTES Reference V Voltage REF OUT ML2340BXX • 8.0V CC ML2340CXX • 8.0V CC ML2350BXX • 8.0V CC ML2350CXX V ...

Page 5

ELECTRICAL CHARACTERISTICS PARAMETER NOTES Digital and DC V Logical “0” IN(0) Input Voltage V Logical “1” IN(1) Input Voltage I Logical “0” DGND IN(0) IN Input Current I Logical “1” IN(1) IN Input Current Supply ...

Page 6

ML2340, ML2350 ACTUAL ANALOG OUTPUT OFFSET (ZERO) ERROR DIGITAL INPUT Unipolar Mode GAIN 0, GAIN 1 XFER V OUT XFER DB0–DB7 6 GAIN ERROR IDEAL WITH OFFSET IDEAL ANALOG OUTPUT Figure 1. Gain and Offset Error ...

Page 7

FUNCTIONAL DESCRIPTION 1.1 D/A CONVERTER The D/A converter is implemented using an array of equal current sources that are decoded semi-linearly for the four most significant bits to improve differential linearity and to reduce output glitch around major carries. ...

Page 8

ML2340, ML2350 Bipolar Output Voltage Mode GAIN 1 GAIN 0 GAIN The output buffer can source or sink as much as 10mA of current ...

Page 9

TYPICAL APPLICATIONS 0 V 4.5V IN Figure 5. Using 4.50V Reference of D/A for Reference of A/D Using Single ML2261 + ML2350 UNIPOLAR V OUT V OUT REFIN 2.50V ...

Page 10

ML2340, ML2350 TYPICAL APPLICATIONS +12V V CC ML2340 BIPOLAR V OUT V OUT AROUND 4.5V V REFIN V 4.50V REFOUT V ZS GAIN 0 AGND GAIN 1 Figure 8. Single 12V Supply, Bipolar V MICRO- CONTROLLER Figure 9. Hard Disc ...

Page 11

PHYSICAL DIMENSIONS 18 PIN 0.045 MIN (1.14 MIN) (4 PLACES) 0.170 MAX (4.32 MAX) 0.125 MIN (3.18 MIN) 0.449 - 0.463 (11.40 - 11.76) 18 PIN 0.024 - 0.034 0.050 BSC (0.61 - 0.86) ...

Page 12

... V = 5.00V with V = 12V REF OUT CC ML2350CCP/12 (OBS) ML2350CCS/12 (OBS) ML2350CIS/12 (OBS) © Micro Linear 1997 is a registered trademark of Micro Linear Corporation Products described in this document may be covered by one or more of the following patents, U.S.: 4,897,611; 4,964,026; 5,027,116; 5,281,862; 5,283,483; 5,418,502; 5,508,570; 5,510,727; 5,523,940; ...

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