X9261_06 Datasheet, PDF (2/20 Pages) Intersil Corporation – Dual Digitally-Controlled Potentiometers

X9261
Ordering Information
PART NUMBER
X9261US24
PART
MARKING
X9261US
V_CC LIMITS
(V)
R_TOTAL (kΩ) TEMP RANGE (°C)
PACKAGE
5 ±10%
50
0 to 70
24 Ld SOIC (300 mil)
PKG.
DWG. #
M24.3
X9261US24Z (Note)
X9261US Z
0 to 70
24 Ld SOIC (300 mil) (Pb-free) M24.3
X9261UV24
X9261UV
0 to 70
24 Ld TSSOP (4.4mm)
MDP0044
X9261UV24Z (Note)
X9261UV Z
0 to 70
24 Ld TSSOP (4.4mm) (Pb-free) MDP0044
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
DETAILED FUNCTIONAL DIAGRAM
V_CC
HOLD
CS
SCK
SO
SI
A0
A1
WP
INTERFACE
AND
CONTROL
CIRCUITRY
8
Data
R_H0 R_L0R_W0
Power-on
Recall
R₀ R₁
R₂ R₃
Wiper
Counter
Register
(WCR)
Pot 0
50kΩ and 100kΩ
256-taps
Power-on
Recall
R₀ R₁
R₂ R₃
Wiper
Counter
Register
(WCR)
Resistor
Array
Pot 1
V_SS
CIRCUIT LEVEL APPLICATIONS
• Vary the gain of a voltage amplifier
• Provide programmable dc reference voltages for
comparators and detectors
• Control the volume in audio circuits
• Trim out the offset voltage error in a voltage ampli-
fier circuit
• Set the output voltage of a voltage regulator
• Trim the resistance in Wheatstone bridge circuits
• Control the gain, characteristic frequency and
Q-factor in filter circuits
• Set the scale factor and zero point in sensor signal
conditioning circuits
2
R_L1 R_H1 R_W1
• Vary the frequency and duty cycle of timer ICs
• Vary the dc biasing of a pin diode attenuator in RF
circuits
• Provide a control variable (I, V, or R) in feedback
circuits
FN8171.4
October 12, 2006