MAX5392 MAXIM [Maxim Integrated Products], MAX5392 Datasheet - Page 4

• Manufacturer Part Number: MAX5392
• Description: Dual, 256-Tap, Volatile, Low-Voltage, Linear Taper Digital Potentiometer
• Manufacturer: MAXIM [Maxim Integrated Products]

Dual, 256-Tap, Volatile, Low-Voltage,
Linear Taper Digital Potentiometer
ELECTRICAL CHARACTERISTICS (continued)
(V
T
Note 1: All devices are 100% production tested at T
Note 2: DNL and INL are measured with the potentiometer configured as a voltage-divider (Figure 1) with H_ = V
Note 3: R-DNL and R-INL are measured with the potentiometer configured as a variable resistor (Figure 1). DNL and INL are mea-
Note 4: The wiper resistance is the worst value measured by injecting the currents given in Note 3 to W_ with L_ = GND.
Note 5: Drive HA with a 1kHz GND to V
Note 6: The wiper-settling time is the worst-case 0 to 50% rise time, measured between tap 0 and tap 127. H_ = V
Note 7: Digital timing is guaranteed by design and characterization, not production tested.
Note 8: The SCL clock period includes rise and fall times (t
Note 9: An appropriate bus pullup resistance must be selected depending on board capacitance. For I
Figure 1. Voltage-Divider and Variable Resistor Configurations
4
Data Setup Time
Data Hold Time
SDA, SCL Rise Time
SDA, SCL Fall
Setup Time for STOP Condition
Bus Free Time Between STOP and
START Condition
Pulse Suppressed Spike Width
Capacitive Load for Each Bus
A
DD
= +25NC.) (Note 1)
______________________________________________________________________________________
= +1.7V to +5.5V, V
and characterization.
The wiper terminal is unloaded and measured with a high-input-impedance voltmeter.
sured with the potentiometer configured as a variable resistor. H_ is unconnected and L_ = GND. For V
terminal is driven with a source current of 400FA for the 10kI configuration, 80FA for the 50kI configuration, and 40FA for
the 100kI configuration. For V
ration, 30FA for the 50kI configuration, and 15FA for the 100kI configuration.
R
WB.
and the wiper terminal is loaded with 10pF capacitance to ground.
from a voltage level of (V
mation from NXP Semiconductor (formerly Philips Semiconductor), refer to the UM10204: I
Manual.
W_
PARAMETER
= (V
W_
- V
H_
H_
)/I
W_
= V
.
DD
IL
, V
+ V
SYMBOL
t
L_
t
t
HD:DAT
SU:DAT
SU:STO
DD
IH
t
DD
BUF
t
C
= GND, T
t
t
SP
)/2.
R
F
B
= +1.7V, the wiper terminal is driven with a source current of 150FA for the 10kI configu-
amplitude tone. LA = LB = GND. No load. WB is at midscale with a 10pF load. Measure
H
L
Minimum power-up rate = 0.2V/Fs
(Note 9)
A
= T
A
W
= +25NC. Specifications over temperature limits are guaranteed by design
MIN
R
to T
= t
CONDITIONS
F
). All digital input signals are specified with t
MAX
, unless otherwise noted. Typical values are at V
N.C.
L
W
MIN
100
0.6
1.3
0
2
C-Bus Specification and User
TYP
2
C-bus specification infor-
R
= t
DD
DD
MAX
F
400
0.3
0.3
50
= +5V, the wiper
= 2ns and timed
and L_ = GND.
DD
DD
, L_ = GND,
= +1.8V,
UNITS
pF
ns
Fs
Fs
Fs
Fs
Fs
ns