DS1809

101999

7 of 8

AC ELECTRICAL CONDITIONS

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

Single Input Pulse Width

1

DC

ms

4,5,7,9

Repetitive Pulse High Time

1

DC

ms

4,5,7,8,9

Continuous Pulse

1

DC

ms

4,5,7,8,9

Storage Control Pulse

1

µs

10,12

Capacitance

5

10

pF

10

ANALOG RESISTOR CHARACTERISTICS ELECTRICAL CONDITIONS

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

End-to-End Resistor

Tolerance

-20

+20

%

14

Absolute Linearity

-0.6

+0.6

LSB

15

Relative Linearity

-0.25

+0.25

LSB

16

-3 dB Cutoff Frequency

MHz

17

Temperature Coefficient

750

ppm/ºC

14

NOTES:

1. All voltages are referenced with respect to ground.

0.5V.

3. Inputs UC and DC are internally pulled-up with resistance of 100 k

Ω .

Ω resistor.

5. Active current is specified when the inputs UC or DC are active.

6. Standby current is the current consumed when the UC, DC, and STR inputs are inactive.

7. Input pulse width is the minimum time required for an input to cause an increment or decrement.

8. Repetitive pulse inputs on UC or DC will be recognized as long as they are within 500 milliseconds

of each other. Pulses occurring faster than 1 ms apart may not be recognized as individual and

separate pulses.

9. Input pulse timing has tolerances to ±10%.

10. Capacitance values apply at 25°C.

levels are referenced to ground.

12. If not used STR should be connected to ground.