ISL22416WFU10Z-TK Intersil, ISL22416WFU10Z-TK Datasheet - Page 9

• Manufacturer Part Number: ISL22416WFU10Z-TK
• Description: IC POT DGTL 128TP LN LP 10-MSOP
• Manufacturer: Intersil
• Series: XDCP™r

Specifications of ISL22416WFU10Z-TK

• Taps: 128
• Resistance (ohms): 10K
• Number Of Circuits: 1
• Temperature Coefficient: 50 ppm/°C Typical
• Memory Type: Non-Volatile
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Resistance In Ohms: 10K
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Typical Performance Curves
Pin Description
Potentiometer Pins
RH AND RL
The high (RH) and low (RL) terminals of the ISL22416 are
equivalent to the fixed terminals of a mechanical
potentiometer. RH and RL are referenced to the relative
position of the wiper and not the voltage potential on the
terminals. With WR set to 127 decimal, the wiper will be
closest to RH, and with the WR set to 0, the wiper is closest
to RL.
RW
RW is the wiper terminal and is equivalent to the movable
terminal of a mechanical potentiometer. The position of the
wiper within the array is determined by the WR register.
300
250
200
150
100
WIPER MID POINT MOVEMENT
FROM 3Fh TO 40h
50
0
FIGURE 13. MIDSCALE GLITCH, CODE 3Fh TO 40h
16
FIGURE 11. TC FOR RHEOSTAT MODE IN ppm
SIGNAL AT WIPER
(WIPER UNLOADED)
36
TAP POSITION (DECIMAL)
56
50k
9
76
(Continued)
10k
96
ISL22416
SHDN
The SHDN pin forces the resistor to end-to-end open circuit
condition on RH and shorts RW to RL. When SHDN is
returned to logic high, the previous latch settings put RW at
the same resistance setting prior to shutdown. This pin is
logically ANDed with SHDN bit in ACR register. SPI interface
is still available in shutdown mode and all registers are
accessible. This pin must remain HIGH for normal operation.
WIPER AT MID POINT (POSITION 40h)
R
FIGURE 15. DCP CONNECTION IN SHUTDOWN MODE
TOTAL
FIGURE 12. FREQUENCY RESPONSE (2.6MHz)
FIGURE 14. LARGE SIGNAL SETTLING TIME
= 9.5kΩ
INPUT
SCL
SIGNAL AT WIPER
(WIPER UNLOADED MOVEMENT
FROM 7Fh TO 00h)
OUTPUT
RH
RW
RL
September 9, 2009
FN6227.2