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X9317_14 Datasheet, PDF (6/13 Pages) Intersil Corporation – Low Noise, Low Power, 100 Taps, Digitally Controlled Potentiometer
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X9317
AC Electrical Specifications VCC = 5V ±10%. Boldface limits apply across the operating temperature range, -40°C to +85°C
(Industrial) and 0°C to +70°C (Commercial). (Continued)
SYMBOL
PARAMETER
MIN
(Note 13)
TYP
(Note 9)
MAX
(Note 13)
UNIT
tR, tF
(Note 10)
INC Input Rise and Fall Time
500
µs
tPU (Note 10)
tR VCC
(Note 10)
Power-up to Wiper Stable
VCC Power-up Rate
5
µs
0.2
50
V/ms
tWR
Store Cycle
5
10
ms
NOTES:
6. Absolute linearity is utilized to determine actual wiper voltage versus expected voltage = [V(RW(n)(actual))-V(RW(n)(expected))]/MI
V(RW(n)(expected)) = n(V(RH)-V(RL))/99 + V(RL), with n from 0 to 99.
7. Relative linearity is a measure of the error in step size between taps = [V(RW(n+1))-(V(RW(n)) - MI)]/MI.
8. 1 Ml = Minimum Increment = [V(RH)-V(RL)]/99.
9. Typical values are for TA = +25°C and nominal supply voltage.
10. This parameter is not 100% tested.
11. Ratiometric temperature coefficient = (V(RW)T1(n)-V(RW)T2(n))/[V(RW)T1(n)(T1-T2) x 106], with T1 and T2 being 2 temperatures, and n from 0 to 99.
12. Measured with wiper at tap position 99, RL grounded, using test circuit.
13. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization
and are not production tested.
Power-up and Down
Requirements
The recommended power-up sequence is to apply VCC/VSS first,
then the potentiometer voltages. During power-up, the data sheet
parameters for the DCP do not fully apply until 1ms after VCC
reaches its final value. The VCC ramp spec is always in effect. In
order to prevent unwanted tap position changes, or an
inadvertent store, bring the CS and INC high before or
concurrently with the VCC pin on power-up.
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6
FN8183.9
November 4, 2014
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