X9438 Datasheet, PDF (9/18 Pages) Intersil Corporation – Dual Digitally Controlled Potentiometer (XDCP) with Operational Amplifier

X9438
ABSOLUTE MAXIMUM RATINGS
Temperature under bias .................... -65°C to +135°C
Storage temperature ......................... -65°C to +150°C
Voltage on SDA, SCL or any address
input with respect to V_SS ......................... -1V to +7V
Voltage on any V+ (referenced to V_SS) ................ +7V
Voltage on any V- (referenced to V_SS) .................. -7V
(V+) - (V-) ............................................................. 10V
Any R_H ....................................................................V+
Any R_L ......................................................................V-
Lead temperature (soldering, 10 seconds) ........ 300°C
RECOMMENDED OPERATING CONDITIONS
Temperature
Commercial
Industrial
Min.
0°C
-40°C
Max.
+70°C
+85°C
COMMENT
Stresses above those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device.
This is a stress rating only; functional operation of the
device (at these or any other conditions above those
listed in the operational sections of this specification)
is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device
reliability.
Device
X9438
X9438-2.7
Supply Voltage (V_CC) Limits
5V ±10%
2.7V to 5.5V
POTENTIOMETER CHARACTERISTICS (Over recommended operating conditions unless otherwise stated.)
Symbol
Parameter
R_TOTAL End to end resistance
Power rating
I_W Wiper current
R_W Wiper resistance
Vv+
Vv-
V_TERM
Voltage on V+ pin
X9438
X9438-2.7
Voltage on V- pin
X9438
X9438-2.7
Voltage on any R_H or R_L pin
Noise
Resolution ⁽⁴⁾
Absolute linearity ⁽¹⁾
Relative linearity ⁽²⁾
Temperature coefficient of R_TOTAL
Ratiometric temperature coefficient
Min.
-20
-3
+4.5
+2.7
-5.5
-5.5
V-
-1
-0.2
Limits
Typ. Max. Unit
Test Conditions
+20
%
50 mW 25°C, each pot
+3
mA
40 100
100 250
+5.5
Ω V_CC = 5V, Wiper Current = 3mA
Ω V_CC = 2.7, Wiper Current = 1mA
V
+5.5
-4.5
V
-2.7
V+
V
-100
dBv Ref: 1V
1.6
±300
+1
+0.2
%
MI⁽³⁾
MI⁽³⁾
V_w(n)(actual) - V_{w(n)(expected)}
V_{w(n + 1)} - [V_{w(n) + MI}]
ppm/°C
±20 ppm/°C
Notes: (1) Absolute linearity is utilized to determine actual wiper voltage versus expected voltage as determined by wiper position when used as a
potentiometer.
(2) Relative linearity is utilized to determine the actual change in voltage between two successive tap positions when used as a potentiom-
eter. It is a measure of the error in step size.
(3) MI = RTOT/63 or (R_H - R_L)/63, single pot ( = LSB)
(4) Individual array resolutions
9
FN8199.0
March 11, 2005