1

May 1997

Single Supply, Programmable

8-Bit D/A Converters

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

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

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.

FEATURES

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Programmable output voltage gain settings of 2, 1,

around zero

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Bipolar or unipolar output voltage

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

dual-supply operation

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Transparent latch allows microprocessor interface

with 30ns setup time

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Data flow-through mode

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Voltage reference output

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

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

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Output voltage settling time over temperature and

supply voltage tolerance

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TTL and CMOS compatible digital inputs

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

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18-pin DIP or surface mount SOlC

BLOCK DIAGRAM

OP

AMP

RESISTORS

SWITCHES

DECODERS

8-BIT D/A

DATA LATCH

DGND

AGND

–

+

DB0

(LSB)

DB7

(MSB)

XFER

GAIN 0

GAIN 1

* This Part Is Obsolete

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