MAX5489 Maxim Integrated Products, MAX5489 Datasheet - Page 4

• Manufacturer Part Number: MAX5489
• Description: (MAX5487 - MAX5489) Linear-Taper Digital Potentiometers
• Manufacturer: Maxim Integrated Products

Dual, 256-Tap, Nonvolatile, SPI-Interface,
Linear-Taper Digital Potentiometers
DC ELECTRICAL CHARACTERISTICS (continued)
(V
T
Note 1: All devices are production tested at T
Note 2: DNL and INL are measured with the potentiometer configured as a voltage-divider with H_ = V
Note 3: DNL and INL are measured with the potentiometer configured as a variable resistor. H_ is unconnected and L_ = 0. For V
Note 4: The wiper resistance is the worst value measured by injecting the currents given in Note 3 into W_ with L_ = GND. R
Note 5: The device draws higher supply current when the digital inputs are driven with voltages between (V
Note 6: Wiper at midscale with a 10pF load.
Note 7: Wiper-settling time is the worst-case 0-to-50% rise time, measured between tap 0 and tap 127. H_ = V
Note 8: Digital timing is guaranteed by design and characterization, and is not production tested.
Figure 1. Voltage-Divider/Variable-Resistor Configurations
4
A
POWER SUPPLIES
Power-Supply Voltage
Supply Current
Standby Current
DD
= +25°C, unless otherwise noted.) (Note 1)
_______________________________________________________________________________________
= +2.7V to +5.25V, V
is unloaded and measured with an ideal voltmeter.
+5V, the wiper terminal is driven with a source current of 400µA for the 10kΩ configuration, 80µA for the 50kΩ configuration,
and 40µA for the 100kΩ configuration. For V
configuration, 40µA for the 50kΩ configuration, and 20µA for the 100kΩ configuration.
(V
0.5V). See Supply Current vs. Digital Input Voltage in the Typical Operating Characteristics section.
the wiper terminal is unloaded and measured with a 10pF oscilloscope probe (see Tap-to-Tap Switching Transient in the
Typical Operating Characteristics section).
W
PARAMETER
- V
H
VOLTAGE-DIVIDER
CONFIGURATION
) / I
W
H
L
.
H
W
= V
VARIABLE-RESISTOR
DD
CONFIGURATION
, V
L
SYMBOL
H
L
= GND, T
V
I
DD
DD
A
= +25°C and are guaranteed by design and characterization for -40°C < T
A
During write cycle only, digital inputs =
V
Digital inputs = V
DD
DD
= -40°C to +85°C, unless otherwise noted. Typical values are at V
= +3V, the wiper terminal is driven with a source current of 200µA for the 10kΩ
or GND
CONDITIONS
DD
or GND, T
A
= +25°C
2.70
MIN
DD
and L_ = 0. The wiper terminal
TYP
DD
0.5
DD
- 0.5V) and (GND +
, L_ = GND, and
MAX
5.25
400
1
DD
A
W
< +85°C.
= +5.0V,
UNITS
=
µA
µA
DD
V
=