0.165

(4.191)

M A X

0.600

(15.24)

0.010

(0.254)

0.100

(0.25)

1.310

(33.274)

M A X

0.025

(0.635)

0.205

(5.207)

0.800

(20.320)

M A X

0.018

(0.451)

PIN (1)

INDEX

TOP

V IEW

inch

(mm)

TY PICA L

DIM ENSIONS

24

1

13

12

Pin 1 is marked by the dot on the top of the package

Consult factory for application information.

SPECIFICATIO N S

(Typical @+25ºC and nominal power supplies unless otherwise noted)

SERIES

DA C349

TY PE

Fixed Reference, V oltage Output

DIGITA L INPUT

Resolution

12 Bits Binary (-12) or

3 Decades BCD (-3D)

Unipolar Coding

Binary or BCD

Bipolar Coding

Offset Binary

Logic Levels

Binary

BCD

Input Current

±1µA max

A NA LOG OUTPUT

V oltage Range

0 to –5V , 0 to –10

±2.5V . ±5V , ±10V

Current Compliance

±5mA (min)

Impedance

0.1

±0.1% of F.S.R. (max)

±0.2% of F.S.R. (max)

±0.1% of F.S.R. (max)

REFERENCE

-10V DC

External (D.C. only)

-10V DC ±10% @1mA

STA TIC PERFORM A NCE

Linearity

±1/2 LSB (max)

Differential Linearity

±1 LSB (max)

DY NA M IC PERFORM A NCE

Settling Time

15µS (max)

Slew Rate

1V /µs

STA BILITY

30ppm/ºC (max)

Linearity vs Temp.

5ppm/ºC (max)

Differential

Linearity vs Temp.

2ppm/ºC (max)

POW ER SUPPLY

V oltage @ Current

+15V @ 5mA (nom): 10mA (max)

+13V to +18V ;

–15V @ 15mA (nom): 20mA (max)

–13V to –18V ;

Rejection Ratio

0.005% /%

Power Consumption

375mW (max)

TEM PERA TURE RA NGE

Specified

DA C349C

–25ºC to +85ºC

DA C349B

–55ºC to +125ºC

Operating, A ll models

–55ºC to +125ºC

Storage, A ll models

–65ºC to +150ºC

M ECHA NICA L

Case Style

Ceramic

NOTES:

1. Offset and gain are externally adjustable. See A PPLICA TIONS

INFORM A TION.

2. For specified overall performance, external loading of the

reference output (Pin 8) must not exceed 1.0 mA .

3. Total effect of linearity, offset and gain tempco's on the transfer

characteristics of the unit.

4. In case of discrepancy between package shown in photograph

and package outline dimension, the mechanical outline is correct.

Specifications subject to change without notice.

PIN

FUNCTION

PIN

FUNCTION

NO.

NO.

BINA RY

BCD

1

OUTPUT

24

BIT 1 (M SB)

800

2

SUM M ING JCT

23

BIT 2

400

3

10V RA NGE

22

BIT 3

200

4

20 V OLT RA NGE

21

BIT 4

100

5

BIPOLA R OFFSET

20

BIT 5

80

6

GA IN A DJ

19

BIT 6

40

7

REF IN

18

BIT 7

20

8

REF OUT

17

BIT 8

10

9

– 15

16

BIT 9

8

10

+15V

15

BIT 10

4

11

GND

14

BIT 11

2

12

GND

13

BIT 1 (LSB)

1

ORDERING INFORM A TION

M ODEL

DESCRIPTION

DA C349C-12

Comm. 12-Bit, –25º C to +85º C

DA C349C-3D

Comm, 3-Decade, –25ºC to +85ºC

DA C349B-12

M lL,12-Bit, –55ºC to +125ºC

DA C349B-3D

M IL,3-Decade, –55ºC to +125ºC

CA UTION: ESD (Electro-Static Discharge) sensitive device.

Permanent damage may occur when unconnected devices are

subjected to high energy electrostatic fields. Unless otherwise

noted, the voltage at any digital input should never exceed the

supply voltage by more than 0.5 volts or go below –0.5 volts.

DAC349