3

Burn-In Bias Circuit

NOTES:

D1 = D2 = D3 = IN4002 or Equivalent

F0 to F11:

VIH = 5.0V

±0.5V

VIL = 0.0V

±0.5V

F0 = 100kHz

±10% (50% Duty Cycle)

F1 = F0/2

F7 = F0/128

F2 = F0/4

F8 = F0/256

F3 = F0/8

F9 = F0/512

F4 = F0/16

F10 = F0/1024

F5 = F0/32

F11 = F0/2048

F6 = F0/64

Radiation Bias Circuit

NOTE: Power Supply Levels are 0.5V

Definitions of Specifications

Digital Inputs

The HS-565ARH accepts digital input codes in binary format

and may be user connected for any one of three binary

codes. Straight binary, Two’s Complement (see note below),

or Offset Binary, (See Operating Instructions).

Accuracy

Nonlinearity - Nonlinearity of a D/A converter is an

important measure of its accuracy. It describes the deviation

from an ideal straight line transfer curve drawn between zero

(all bits OFF) and full scale (all bits ON).

Differential Nonlinearity - For a D/A converter, it is the

difference between the actual output voltage change and the

ideal (1 LSB) voltage change for a one bit change in code. A

Differential Nonlinearity of

±1 LSB or less guarantees

monotonicity; i.e., the output always increases and never

decreases for an increasing input.

Settling Time

Settling time is the time required for the output to settle to

within the specified error band for any input code transition.

It is usually specified for a full scale or major carry transition,

settling to within 0.50 LSB of final value.

Drift

Gain Drift - The change in full scale analog output over the

specified temperature range expressed in parts per million of

temperatures. Gain drift is calculated for both high (TH -

the respective change in temperature. The specification is the

larger of the two representing worst case drift.

Offset Drift - The change in analog output with all bits OFF

over the specified temperature range expressed in parts per

(TL) temperatures. Offset drift is calculated for both high (TH

error by the respective change in temperature. The

C3

D3

+10V

1

4

5

8

9

10

11

12

16

17

18

19

20

21

22

23

24

15

14

13

2

3

6

7

NC

C1

D1

+15V

C2

D2

-15V

F0

F1

F2

F3

F4

F5

F6

F7

F8

F9

F10

F11

NC

VCC

REF GND

REF OUT

REF IN

-VEE

BIP OFF

OUT

10V SPAN

20V SPAN

PWR GND

BIT 1

BIT 2

BIT 3

BIT 4

BIT 5

BIT 6

BIT 7

BIT 8

BIT 9

BIT 10

BIT 11

BIT 12

+15V

1

4

5

8

9

10

11

12

16

17

18

19

20

21

22

23

24

15

14

13

2

3

6

7

NC

NC

VCC

REF GND

REF OUT

REF IN

-VEE

BIP OFF

OUT

10V SPAN

20V SPAN

PWR GND

BIT 1

BIT 2

BIT 3

BIT 4

BIT 5

BIT 6

BIT 7

BIT 8

BIT 9

BIT 10

BIT 11

BIT 12

-15V

+10V

+5V

DIGITAL

INPUT

ANALOG OUTPUT

STRAIGHT

BINARY

OFFSET

BINARY

(NOTE)

TWO’S

COMPLEMENT

MSB...LSB

000 ... 000

Zero

-FS (Full Scale)

Zero

100 ... 000

0.50 FS

Zero

-FS

111 ... 111

+FS - 1LSB

+FS - 1LSB

Zero - 1LSB

011 ... 111

0.50 FS - 1LSB

Zero - 1LSB

+FS - 1LSB

NOTE: Invert MSB with external inverter to obtain Two’s

Complement Coding

HS-565ARH